CA2452987C - Telephone outlet with packet telephony adapter, and a network using same - Google Patents
Telephone outlet with packet telephony adapter, and a network using same Download PDFInfo
- Publication number
- CA2452987C CA2452987C CA2452987A CA2452987A CA2452987C CA 2452987 C CA2452987 C CA 2452987C CA 2452987 A CA2452987 A CA 2452987A CA 2452987 A CA2452987 A CA 2452987A CA 2452987 C CA2452987 C CA 2452987C
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- Prior art keywords
- outlet
- wiring
- network
- telephone
- data
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
- H04M7/0081—Network operation, administration, maintenance, or provisioning
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/253—Telephone sets using digital voice transmission
- H04M1/2535—Telephone sets using digital voice transmission adapted for voice communication over an Internet Protocol [IP] network
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Telephonic Communication Services (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Abstract
An outlet (75) for a Local Area Network (80) (LAN), containing an integrated adapter (21) that converts VoIP to and from analog telephony, and a standard telephone jack (72) (e.g. RJ-11 in North America) for connecting an ordinary analog (POTS) telephone set. Such an outlet allows using analog telephone sets in a VoIP environment, eliminating the need for an IP telephone set or external adapter. The outlet may also include a hub (31a, 31c) that allows connecting both an analog telephone set (22a, 22c) via an adapter (21a, 21c), as well as retaining the data network connection, which may be accessed by a network jack (73a, 73c). The invention may also be applied to a telephone line-based data networking system. In such an environment, the data networking circuitry as well as the VoIP/POTS adapters are integrated into a telephone outlet, providing for regular analog service, VoIP telephony service using an analog telephone set, and data networking as well. In such a configuration, the outlet requires two standard telephone jacks and a data-networking jack.
Outlets according to the invention can be used to retrofit existing LAN and in-building telephone wiring, as well as original equipment in new installation.
Outlets according to the invention can be used to retrofit existing LAN and in-building telephone wiring, as well as original equipment in new installation.
Description
Telephone Outlet with Packet Telephony Adapter, and a Network Using Same FIELD OF THE INVENTION
The present invention relates to the field of packet telephony, and, more specifically, to the use of packet telephony within a Local Area Network (LAN) over wiring simultaneously used for analog telephony.
BACKGROUND OF THE INVENTION
Analo-phone Network Analog telephony, popularly known as "Plain Old Telephone Service"
("POTS") has been in existence for over 100 years, and is well-designed and well-engineered for the transmission and switching of voice signals in the 3-4 KHz portion (or "band") of the audio spectt-um. The familiar POTS network supports real-time, low-latency, high-reliability, moderate-fidelity voice telephony, and is capable of establishing a session between two end-points, each using an analog telephone set.
The terms "computer" and "personal computer" ("PC") as used herein include workstations and other data terminal equipment (DTE) with interfaces for connection to a local area network. The term "telephone set" as used herein includes any device which can connect to a Public Switch Telephone Network ("PSTN") using analog telephone signals, non-limiting examples of which are fax machines, automatic telephone answering machines, and dial-up modems.
The present invention relates to the field of packet telephony, and, more specifically, to the use of packet telephony within a Local Area Network (LAN) over wiring simultaneously used for analog telephony.
BACKGROUND OF THE INVENTION
Analo-phone Network Analog telephony, popularly known as "Plain Old Telephone Service"
("POTS") has been in existence for over 100 years, and is well-designed and well-engineered for the transmission and switching of voice signals in the 3-4 KHz portion (or "band") of the audio spectt-um. The familiar POTS network supports real-time, low-latency, high-reliability, moderate-fidelity voice telephony, and is capable of establishing a session between two end-points, each using an analog telephone set.
The terms "computer" and "personal computer" ("PC") as used herein include workstations and other data terminal equipment (DTE) with interfaces for connection to a local area network. The term "telephone set" as used herein includes any device which can connect to a Public Switch Telephone Network ("PSTN") using analog telephone signals, non-limiting examples of which are fax machines, automatic telephone answering machines, and dial-up modems.
Outlets The teen "outlet" herein denotes an electro-mechanical device, which enables connection to wiring installed within a building. Outlets are permanently comlected to the wiring, and allow easy connection of external units as required to such wiring, commonly by means of an integrated, built-in connector. The outlet is normally mechanically attached to, or mounted in, the wall. Non-limiting examples of common outlets include: telephone outlets for connecting telephone sets; CATV outlets fox connecting television sets, VCR's, and the life;
and electrical outlets for connecting power to electrical appliances.
LAN Envir onment A development associated with the Internet is pacl~et telephony. Pacl~et telephony involves the use of a pacl~et based networl~ (commonly using the Internet Protocol, or IP) for communicating telephonic and related data, which may include sound, images, motion pictures, multimedia and any combinations thereof, in addition to voice content. In place of a pair of telephones connected by switched telephone lines as in analog telephony, pacl~et telephony typically involves the use of an IP-telephone at one or both ends of the telephony linl~, with the telephonic information transferred over a pacl~et networl~ using pacl~et switching and pacl~et routing techniques, as exemplified by the Internet.
Recently, a solution for combining both telephony and data communications into a single networl~ is offered by the Voice-Over-Internet-Protocol (VoIP) approach. In this technique, telephone signals are digitized and carried as data across the LAN. Such systems are l~nown in the art.
Fig. 1 shows a typical LAN-based telephony environment 10. Such a networl~, commonly using lOBaseT or 100BaseTX Ethernet IEEE802.3 interfaces and topology uses a hub 11 as a concentrating device, into which all devices are connected. Devices are connected to hub 11 by data connectors 14a, 14b, and 14c, which are housed within networl~ outlets 15a, 15b, and 15c respectively via cables 13a, 13b, and 13c respectively. Data connectors 14a, 14b, and 14c may be, for example, type RJ-45; and cables 13a, 13b, and 13c may be, for example, Category 5 cabling. The telephony portion of network 10 uses IP
telephones 17a, 17b, and 17c, which connect to network connectors 14a, 14b, and 14c via cables 16a, 16b, and 16c, respectively. A server 12 may also be connected to hub 11, and can perform the IP-PBX functionality, as well as other server functions as applied in the art.
Although Fig. 1 refers to the hub 11 as a concentrating device, it is understood that any type of device having multiple network interfaces and suppot-ting a suitable connectivity can be used, non-limiting examples of which include a shared hub, switch (switched hub), router, and gateway. Hence, the term "hub" used herein denotes any such device. Funtheumore, the hub 11 can be any packet based network, either in-building or distributed, such as LAN or the Internet.
In order to employ VoIP in network 10, specific IP telephones 17a, 17b, and 17c must be used. Such telephones are expensive, require connection to a power outlet (or other power supply) and are not yet common in the marketplace.
This factor has encouraged the availability of adapters for bridging between IP
networks and PSTN equipment. Specifically, adapters enabling the usage of POTS telephone sets in an IP environment are available in the market, allowing the use of common and low-price legacy POTS telephone sets to be used in a VoIP environment.
Fig. 2 shows a network 20 using POTS telephone sets in a VoIP
environment. Basically, network 20 uses the same network infrastructure as network 10 (Fig. 1). However, instead of IP telephones 17a, 17b, and 17c, POTS
telephone sets 22a, 22b, and 22c are used, connected via cables 6a, 6b and 6c respectively to VoIP / PSTN adapters 21a, 21b, and 21c, respectively, which in tum are respectively connected to network outlets 15a, 15b, and 15c via cables 22a, 22b, and 22c respectively. Such a configuration affords the benefits of IP
telephony, but allows the use of cornlnon and inexpensive POTS telephone sets.
01f08 '0~ 10:30 No.~41 04/14 Although z~.ctwork 20 facilitates the employment of cozn~oao~,, low-cost , standard legacy POTS telephone sets, adapters 2~.a, 21b, and 21c axe necessary, ' malsirrg installation and maixjtenance com.p)ex, and requiri,zyg additional equipment, connections, anal cables (e.g. cables ZZ). Furthermore, such adapters require a poyvcr connection, further complicating -installation, use, and rnaia~.tenance.
Furthermore, ~altb.ougb. Fig. 1 and Fig: Z show networlcs which are used solely for telephony, L.~Ts today are intended acid used principally for data communieati.oz~., to connect Data Terminal Equipment (DTE) d.eviees (such as desktop persvn.al computer's, printers). In some cases, the number of outlets (or connectors 14) may not svt~.ce for both telepb.ony and data. applications.
,For.
example, this may be the case in. an. o~hce Wl~exe each work area has a siz~.gl.e network connection. via a si.ngl.e outlet :IS having singf.e cvnn.ector ~.4.
Tn. this cases a hub (or other mufti-port unit) must be connected to expand to multiple network connections. Fig. 3 shows such a configuratio~o. in. a prior-art networlc 30.
In order. to allow both adaptex 21,a and D'TE 7a to share network outlet 1.5a via conz~.ector l.~a, a hub 31,a is added. Similarly, a hub 31e is added, ~aci,li.'tating the connection of both adapter Zlc and DTE 7c to a single network cvz~.ncction via outlet ~.Sc vi.a connector arc. '7,'hus, in such a cvnfi.guuz~ati.on.~
additional hubs 31a and 31c must be added, introducing additioz~.al complexity in.-installation and maintenance.
$f 4824298 to HarpEr i.s az~. exazzzple of a prior art network 30 using .n,'~
as th.e network protocol. Si.m.zlarly, LT.E~ Patent GS 235236Q also refers to telephony carried over A'T'N.f ceh,s in, a digital. broadcast environment.
US Patent 5,530,894 to Farrell et~ al. discloses an. example of a specific mefihod. and system that allv~ws analog tel.cphor~.y to be routed as part of a digital.
network, using dedicated time divi.si,on switching circuitry invo).vin.g data.
link layers b.an.dl.i.ng.
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Gm~~ -..a; +°flRlf~1 ~~nn~ nQ~=~ ~:"nf ~r ~~~~ a nnn 01 !d8 ' 03 'f 0: 3Q N0. 24'I C15!'14 4a US Patent 6,130,593 to Wbittakex et al. i.s. another axa~.ple showir~.g a pzi.vr azfi network 34 in~ a building. /y e;cternal terminal adapter ZQ allows additional t~lephoz~e ,lines using standard analog telepb.vz~.cs sets (PAT'S) to be.
added. To this end, the terminal adapter ZO i.s provided v~itb. a jack 47 anal an.
output 45 connected to a. ~T~dia /access Control Unit (MACiJ~ 52, which outputs to a Packet Decoder. 54 anal receives an input from a Packet L~'nec~der GG.
Art exteznal. power supply must be provided for energizing active corn~pvn.ents within.
the texxzyinal adapter such. as the MACU, paelEet decoder and encoder anal ~ar.~i.ous active components. As noted above, this furtb.ex com.plzcates ir~staJ.l.ati.vn~ use, anal 1.0 xn.aintenance of such d.evi.ces.
I~:om.e Netwarkin~
ITJ.-h,vane.telcpb,vr~.e service usually employs two yr four wires, to which tclcpbvne sets are connected, uia teleplione outlets.
Fig. 4 shows the wiu-ing con.f.~gurativn. of. a. przvx-art tcleph.vz~.v system.
I5 including a network 40 for. a residence or. other building, Wir. ed with a telephone l.in.e 5. The tvaeplaoz~.e ~lin,e 5 consists of szngle wue pair wha.cb.
vonnects to a.
juncla.vn.-box 34, which in turn connects to a Public Switched Telephone ~1'etworlc (PSTN) 4I via a cable 33, ternoi~o.ati.n.g in a public switch 32, which establishes and enables telephony from one telephone to az~,vther. ':fb,c tcz~m "analog . 20 telephony" hemin denotes traditional analog Iow-frequency audi,v voi.oE
si.gnal.s typically under 3T~, sometimes referred to as "~0'pS" ("PZaa~. OLd 7.'elephone Sezvi.ce"), wb.ereas tb.e tern, a. "tea.epbox~y" in: genoral denotes any kind of t~l.Ephvz~.e sezvice, including digital sez-v~ice such as Zz~.t~grated Services Digital Netwwz~k (ISDN)_ The term "high-frequency" l~ezein denotes az~y freduency substantially 25 above such analog tel.epbany audio frequen.ci.es, such as that used for data. JSD~i' typi.caJ.Ly uses .frecluen.czes not exceeding IgO:L~I~ (typi.cally the energy is con.cen9rated around. 40TH). The term "tea.epb.on.e i.iue" herein dextotes electrically-conducting lines whi.cb. are intended priznaza.ly for, the carrying and di.stributi.on. of analog telephony, and includes, but i.s o.ot limited to, such 1341C~~o 'n ~e n~..
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08-01-2003 CA 02452987 2004-O1-05 ~ IL0100954 D'1 /08 ' 03 'l 0 : 3'I N0 . 24"1. 06!'14 el.ecta;ically-wnductzng lines which may be pre-existing within. a. bt~,ilding and ~,~ch msy currently provide analog telephony service. The terxx~ "telephone device" heroin. den.vtes, without limitation., any apparatus for tel.eph.ozay (i,~a.cludin,g both, a~ralog tei.eglaozay anal XSDT'~, as well as any device using 5 telephony signals, such as fax, voice-raodem, and so ~vxtb..
Tta.e juractian. box 34 is used to separate the in-home circuitry from the PSTN and is used as a test facility fox troubleshooting as well as ~ox new wiring .
in .the b.vxn.e. !.\ pl.ural.ity . of tel.ephanes may cv~anect to telephone ii~es S via a plurality of telephone outlets 35a, 35b, 35c, and 35a. Each outlet has a ~o~a.~n.ectvr . 14 (omen referred tv as a "jack"), den.vted xx~ k'ig. 4 as, 36a, 3Gb, 36c, anal 36d, respectively. rn Norfh-America, RJ-11 is comm.vnly used for a jaclc. Each outlet znay be co~nn.ECted tv a telephone unit via a "plug'? av~nn.ectoz that inserts into the jack.
Network 40 is narm.ally cvz~fa.guxed izzto a . serial ar "dai.sy-chained'' 1.5 topology,~wherei~: the wiring is cbnnected frmn oae outlet to the next in a li.ncar manner, but othEx tvpvXvgies such as star, tree, or any arbiixaxy typology nn.ay also be used.. Regardless oi: the .tvpvl.ogy, however, the telephvz~e wiring system within. a residence always uses wired zaa.Edi.a.: two or four copper wires along with one or more outlets which. provide direct access to tla.ese wires.for connecting to 20~ telephone sets.
Zt is v~cn: desirable to sinaultancously use existing telephone wiring simultaneously ~vr, both. telephony and data networking. In t'~xs way, establishing a new local area network. in a home or other buxJ.ding is simplzf.ed, because there is r~o need to in;stal,~ addztaonal wiring. U.S. Patent 4,766,4Q2 to Crane 25 (hereinafter referred to as "Crane") teaches a Focal llsEa Network ever standard two-vJixe telephone lines, but does not simultar~eousby support telcph.v~oy.
As another example, relevant prior-axt in this Eeld i,s discl~ased ire U.S.
patent 5,96.443 to Dichtez~ (.h.ereiaxa~er referred to as "Dicht~.r.").
Dichter suggests a method and app~aratu.s for applyi.zag a frequem.cy domain /
divi.si.on.
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~8-~1-2003 CA 02452987 2004-O1-05 IL0100954 0'I /08 ' C13 '10: 3'1 NO . 24'1 a7/'( 4 multiplexing (~1a1~ techrai.que fvr ;iesidentaal telephone wizin.g, enabling the simultao,eaus carrying of telephony and. data communication si.zial.s. 'T'b.c available bandwidth over the wiring is split into a low-frequency band capable af.
carrying aa. analog tel>rphony signal., anal a high,-frequency band capable at caz~ryi.>ag data communication signals. In such a mechan.i.sra, tel.cpborzy is not affi'ected, while a data communication capability is provided over existing telepbo><7.e vvizzz><.g vai.'tlaiz~ a b.vzz>Le:
The concept o~ frequency dvx~o.ai~o. / divi.si.on mu.Itiplexing (FD1V,1) i.s well.-knawn i.n the art, and p~rvvidea mans v~ splitting floe laan.dwidth carried by a wire 1.0 into a l,ow-frequea.cy band capable of. carzyxz~.g an sn.alog telephony signal aad a high-frequency band capable v~ ca~yi.z~.g data car<~oxnut~ication ar other signals.
Such. a ~rn.ecb,az~.i,sm. zs desc~.-ibed, 1'oz exax><7.ple, in U.S. Patent 4,785x9.48 to Reichext et a1. (he~-eiraaz~~e~~d to as "Rei.chert"'). Also widely used are xDST~
systems, pz~ixoarily /lsymzu.etxi.c Digital Subscriber. J~oop (A'DSL) systezzas.
In addition to illustrating a residential telepb.v>ne system., Fig. 4 also shvvfs floe arran,gem.>~nt of a Richter networlc. Netwvric ~4Q serves both. analog telephones and provides a local area netwazlc o1' data uui.ts. Data Terminal ~uiprn.ent (RTE}
units 7a, ?b, anal 7c are connected tv ~tl:~c local, area network via Data Gominuzucation Equiprn.erat (17C~) units 39a, 39b, aa.d 39c, respectively.
. 20 examples o1; Data Communi.catioz~. Equipment include, but are not lir~n,ited to, rb.ade~s, line drivers, Iine receivers, anal txan.sceivers (the tezzn.
"transceiver', herein, denotes a Combined transm.xttEr. ~a.d. receiver}, which enables corrununicatian. ever. tel.epb,one line 5. DCE waits 39x, 39b, an,d 39c are respectively connected tv high. pass ,filters (IqP'F) 3Sa, 3$b, and 3Sc, wb.i,cb. allow access tv the bigb-frequency band caxri,ed by tel.ephvne line 5. Jn ard.er to avoid inte~'ezen.ce to the data netwar~ caused. by the tcl,epban.es, low pass fxl.tezs (LPF's) 37a, 37b, and 3?c aa~e added tv isvl.ate tb.e I'GTS caa~,yizi,g band, 5a that telephones 2.~a, ~2b, and 22c connects to telephvn.e l.i.n.e ~ for pravi,din.g PSTN.
134.'1098-1 !~.0 ~ . I~nc AMENDED SHEET
Fmnf poi t'_n~m~f'~III l'.-~ I1~'_'~d I-mof nr ~~~n P flfl7 08-01-2003 cA, 02452987 2004-O1-05 IL0100954 01 f08 ' e33 10:31 No.241 08f14 Furthermore, a low Bass filter may also connected to 3unction Box 34 (not sb.own, in the f gore), in order to filter. n.oi.so induced fxozn or to PSTN wiring 33.
Fig. 5 shows a telephone Iine-based LlaN 50 wherein the data network is used for carrying both voIP telephony anl. regular DTE network data. dubs 31a, 31.b, and 31.c allow cvz~.ecting respective T?TI-: units 7a, 7b, and 7e as well a~
respective ~l,' t~l~h.ones 7<7a, 17b, anal ~.7c to respective single network connecti.on.s via pC>: units 39a, 39b, anal 39c. ,~na.l.og telephones 22a, 22b, and 22~c are also. shown connected via respective low pass filtezs (LPF's) 3'~a, 3'~b, and. 37c to the telephone. outsets 35a, 3Sc, 35d.. Thus, the analog tel.epb.ones are 1.0 couz~ected dzrectly to tt~e artaJvg telegb,az~.~ liz~.c S.
In. order, to el.imiz~.at~ tb.c need for 1P tElephones ,17a, I7b, and L7c, az~d to pezmat using analog telephone sets 22a, 22b, a~a.d 2Zc instead, adapters 21a, 21,b, and 2Ic (Fig. 3) must be added, as descz~ibed previ.ously.~Fig. G shows a network G0, where this is done. I1' telephones 17a, 17b, arid ,1.7c of n.etworlc 50 are I5 replaced by analog telcphon.e sets 22d, 2Ze, and 22f, respectively, connected to hubs 41a, 41b , and 41c, respectively, via adapters 21a, Zlb, ara.d 21c rospective3.y_ Fig. G dezzr.vn.stratcs tl~e complexi'~ o:f such a cvr~.figuxaxion_ A,t least thz~ee types of external devices are requazed: 17GE units 39a, 39b, and 39c; hubs' 41a, 20 alb, anal 41c; arid adapters Zla, 21b, and 21c. Each. of these devices usually requires a separate powex oozn7.ecti.on, which adds to tla.e complexity of tb.e cvz~nections. Thus, such a network i.s complex and d~l..fF.a.oult to install, operate, and mait~taiz~. .Tn tb.e prior art, it is suggested to integrate the D.CF, ~PF, and LPF
ca~pvz~.ents into vutl.ets 35a, 35b, and 35c. Nevertheless, external, hubs 41a, 41.b, 25 and 41c, as well as adapters 21a., 21b, and 21c sti,l,I innpose ad.dity.oz~al. con~.plexity in such a netwozk.
Sim.i.l.arly, 'PTO O1/Z~2'15 to $ullock et al. describes a systera~ used to carry analog telephony over. existing power Iin.es within a premises. 7-his solution.
reduires many citern.al units such, as base unit 102, PLC T!F 103, PIrC 1lF I
OG
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~8-~1-2003 CA 02452987 2004-O1-05 IL0100954 x1108 '03 1Q:32 f~o.i?41 09114 and extension unit 107. 'T7~.e requirement for. such. multiple arad dif.~erent units adds cvnoplexity anal makes fih.e in.stal,lati.on cwnbezsvm,e and di,~htcult.
There .is tlyus a widely recognized need for, azad it would be highly advantageous to have, a means for a7J.owing the use oT' analog (POTS) telephone sets in. LAN ! v'oZT' environments witlavut z~equiritn.g additi.oz~al external. devices or power sources and allowing easy installation, operation, and maintenance.
'~'bi.s goal is met by the present invention.
SUMMARS~ OF TI~E INZ~ENTION
The present invez~tivn, rn.alces it easy and. convenient to use analog l0 ("POTS") tel.eph,v>ne sets int a packet teLepk~ony envixonm.ent,.
including, but uvt limited. to, TP telephony via VoIP technology. The invention. provides an outset for a Local t~,rea Network (LAN), with an integrated an.alvg/Vvl3' adapter.
The vutl,et h.as a stan.dazd an.al.og tel.~b.ora.e jack (e.g. Ii3-1I in Noxtb.
America) allvwlug an analog teLepb.one Set to be directly connected ta, and used with., a packet telephony system.
in, a ~.rst ezn:bodirn.ent, an. outlet according to the pzesent invention is used.
with an ordinary LAN envirv~uz~cnt, such. as Etbernet lOBaseT (ZEEE802.3). The outlet. allows connecting analog teiephvne sets to t~.e x,..l~,'~I via the integrated analogIVoIP adapter, supports analog telephony vvez tb.e T./.-~N media, and can also support a standard netwozk data coz~z~ection using a~n. integzated multi-part uxrit (e.g. hub, switch, or router).- Fvr. standard network data cvnn.ections, the outlet also ir~.oludes a data networking jack (e.g. RJ~45 if lOBaseT ox 1.00BaseTX
is used) connected to a port.
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Fmof ~c,it'_flplflll'~fifl~ (lR'_'~~, I-mot nr '_~~ N Illlu In another embodiment, the outlet enables a LAN to be based on in-building telephone wiring, in a home or Small Office / Home Office (SoHo) environment. A paclcet-based LAN is implemented, and outlets according to the present invention serve as both telephone outlets and network outlets. This allows for direct and convenient connection of analog telephone sets to VoIP
packet telephony over the data network. In such an arrangement, the regular analog telephony service remains unaffected, because the low-frequency analog portion of the spectrum is isolated by the FDM technique. As noted above, the outlet may also support a network data connection, using an integrated multi-port unit (e.g. hub, switch or routes), and in this case also includes a data network jack (e.g. RJ-45 if lOBaseT or 100BaseTX is used) connected to a port.
Outlets according to the present invention can be installed as part of an original network installation, as a retrofit to an existing network, or to set up a network over existing telephone wiring.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is herein described, by way of non-limiting example only, with reference to the accompanying drawings, wherein:
Fig. 1 shows a prior ant local area network supporting IP telephony.
Fig. 2 shows a prior art local area network supporting IP telephony, using analog telephone sets.
Fig. 3 shows a prior art local area network supporting both IP telephony using analog telephone sets and DTE connectivity.
Fig. 4 shows a prior ant local area network over telephone lines.
Fig. 5 shows a prior art local area network over telephone lines supporting both IP telephony and DTE connectivity.
Fig. 6 shows a prior art local area network over telephone lines supporting both IP telephony using analog telephone sets and DTE connectivity.
Figs. 7a and 7b show schematically outlets according to different embodiments of the invention.
Fig. 8 shows a local area network supporting both IP telephony using analog telephone sets and DTE connectivity, employing outlets according to the 5 present invention.
Fig. 9 illustrates an outlet supporting analog telephony and packet telephony according to the present invention.
Fig. 10 illustrates a local area network over telephone lines supporting both IP telephony using analog telephone sets and DTE connectivity, employing 10 outlets according to the present invention.
Fig. 11 illustrates a first outlet according to the present invention for providing life-line telephone capability for a telephone normally used in pacl~et telephony.
Fig. 12 illustrates a second outlet according to the present invention for providing life-line telephone capability in conjunction with a data network, where analog telephone signals are provided via a separate conductor.
Fig. 13 illustrates a third outlet according to the present invention for providing life-line telephone capability in conjunction with a data network, where analog telephone signals are separated using FDM.
Fig. 14 illustrates a global network connected via a gateway to a local network existing within a building, and which provides packet telephony services to analog telephones via in-building outlets according to the present invention.
Fig. 15 illustrates a general form of an outlet according to the present invention, which can seine in various wired network environments, such as CATV and electrical power networks.
and electrical outlets for connecting power to electrical appliances.
LAN Envir onment A development associated with the Internet is pacl~et telephony. Pacl~et telephony involves the use of a pacl~et based networl~ (commonly using the Internet Protocol, or IP) for communicating telephonic and related data, which may include sound, images, motion pictures, multimedia and any combinations thereof, in addition to voice content. In place of a pair of telephones connected by switched telephone lines as in analog telephony, pacl~et telephony typically involves the use of an IP-telephone at one or both ends of the telephony linl~, with the telephonic information transferred over a pacl~et networl~ using pacl~et switching and pacl~et routing techniques, as exemplified by the Internet.
Recently, a solution for combining both telephony and data communications into a single networl~ is offered by the Voice-Over-Internet-Protocol (VoIP) approach. In this technique, telephone signals are digitized and carried as data across the LAN. Such systems are l~nown in the art.
Fig. 1 shows a typical LAN-based telephony environment 10. Such a networl~, commonly using lOBaseT or 100BaseTX Ethernet IEEE802.3 interfaces and topology uses a hub 11 as a concentrating device, into which all devices are connected. Devices are connected to hub 11 by data connectors 14a, 14b, and 14c, which are housed within networl~ outlets 15a, 15b, and 15c respectively via cables 13a, 13b, and 13c respectively. Data connectors 14a, 14b, and 14c may be, for example, type RJ-45; and cables 13a, 13b, and 13c may be, for example, Category 5 cabling. The telephony portion of network 10 uses IP
telephones 17a, 17b, and 17c, which connect to network connectors 14a, 14b, and 14c via cables 16a, 16b, and 16c, respectively. A server 12 may also be connected to hub 11, and can perform the IP-PBX functionality, as well as other server functions as applied in the art.
Although Fig. 1 refers to the hub 11 as a concentrating device, it is understood that any type of device having multiple network interfaces and suppot-ting a suitable connectivity can be used, non-limiting examples of which include a shared hub, switch (switched hub), router, and gateway. Hence, the term "hub" used herein denotes any such device. Funtheumore, the hub 11 can be any packet based network, either in-building or distributed, such as LAN or the Internet.
In order to employ VoIP in network 10, specific IP telephones 17a, 17b, and 17c must be used. Such telephones are expensive, require connection to a power outlet (or other power supply) and are not yet common in the marketplace.
This factor has encouraged the availability of adapters for bridging between IP
networks and PSTN equipment. Specifically, adapters enabling the usage of POTS telephone sets in an IP environment are available in the market, allowing the use of common and low-price legacy POTS telephone sets to be used in a VoIP environment.
Fig. 2 shows a network 20 using POTS telephone sets in a VoIP
environment. Basically, network 20 uses the same network infrastructure as network 10 (Fig. 1). However, instead of IP telephones 17a, 17b, and 17c, POTS
telephone sets 22a, 22b, and 22c are used, connected via cables 6a, 6b and 6c respectively to VoIP / PSTN adapters 21a, 21b, and 21c, respectively, which in tum are respectively connected to network outlets 15a, 15b, and 15c via cables 22a, 22b, and 22c respectively. Such a configuration affords the benefits of IP
telephony, but allows the use of cornlnon and inexpensive POTS telephone sets.
01f08 '0~ 10:30 No.~41 04/14 Although z~.ctwork 20 facilitates the employment of cozn~oao~,, low-cost , standard legacy POTS telephone sets, adapters 2~.a, 21b, and 21c axe necessary, ' malsirrg installation and maixjtenance com.p)ex, and requiri,zyg additional equipment, connections, anal cables (e.g. cables ZZ). Furthermore, such adapters require a poyvcr connection, further complicating -installation, use, and rnaia~.tenance.
Furthermore, ~altb.ougb. Fig. 1 and Fig: Z show networlcs which are used solely for telephony, L.~Ts today are intended acid used principally for data communieati.oz~., to connect Data Terminal Equipment (DTE) d.eviees (such as desktop persvn.al computer's, printers). In some cases, the number of outlets (or connectors 14) may not svt~.ce for both telepb.ony and data. applications.
,For.
example, this may be the case in. an. o~hce Wl~exe each work area has a siz~.gl.e network connection. via a si.ngl.e outlet :IS having singf.e cvnn.ector ~.4.
Tn. this cases a hub (or other mufti-port unit) must be connected to expand to multiple network connections. Fig. 3 shows such a configuratio~o. in. a prior-art networlc 30.
In order. to allow both adaptex 21,a and D'TE 7a to share network outlet 1.5a via conz~.ector l.~a, a hub 31,a is added. Similarly, a hub 31e is added, ~aci,li.'tating the connection of both adapter Zlc and DTE 7c to a single network cvz~.ncction via outlet ~.Sc vi.a connector arc. '7,'hus, in such a cvnfi.guuz~ati.on.~
additional hubs 31a and 31c must be added, introducing additioz~.al complexity in.-installation and maintenance.
$f 4824298 to HarpEr i.s az~. exazzzple of a prior art network 30 using .n,'~
as th.e network protocol. Si.m.zlarly, LT.E~ Patent GS 235236Q also refers to telephony carried over A'T'N.f ceh,s in, a digital. broadcast environment.
US Patent 5,530,894 to Farrell et~ al. discloses an. example of a specific mefihod. and system that allv~ws analog tel.cphor~.y to be routed as part of a digital.
network, using dedicated time divi.si,on switching circuitry invo).vin.g data.
link layers b.an.dl.i.ng.
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Gm~~ -..a; +°flRlf~1 ~~nn~ nQ~=~ ~:"nf ~r ~~~~ a nnn 01 !d8 ' 03 'f 0: 3Q N0. 24'I C15!'14 4a US Patent 6,130,593 to Wbittakex et al. i.s. another axa~.ple showir~.g a pzi.vr azfi network 34 in~ a building. /y e;cternal terminal adapter ZQ allows additional t~lephoz~e ,lines using standard analog telepb.vz~.cs sets (PAT'S) to be.
added. To this end, the terminal adapter ZO i.s provided v~itb. a jack 47 anal an.
output 45 connected to a. ~T~dia /access Control Unit (MACiJ~ 52, which outputs to a Packet Decoder. 54 anal receives an input from a Packet L~'nec~der GG.
Art exteznal. power supply must be provided for energizing active corn~pvn.ents within.
the texxzyinal adapter such. as the MACU, paelEet decoder and encoder anal ~ar.~i.ous active components. As noted above, this furtb.ex com.plzcates ir~staJ.l.ati.vn~ use, anal 1.0 xn.aintenance of such d.evi.ces.
I~:om.e Netwarkin~
ITJ.-h,vane.telcpb,vr~.e service usually employs two yr four wires, to which tclcpbvne sets are connected, uia teleplione outlets.
Fig. 4 shows the wiu-ing con.f.~gurativn. of. a. przvx-art tcleph.vz~.v system.
I5 including a network 40 for. a residence or. other building, Wir. ed with a telephone l.in.e 5. The tvaeplaoz~.e ~lin,e 5 consists of szngle wue pair wha.cb.
vonnects to a.
juncla.vn.-box 34, which in turn connects to a Public Switched Telephone ~1'etworlc (PSTN) 4I via a cable 33, ternoi~o.ati.n.g in a public switch 32, which establishes and enables telephony from one telephone to az~,vther. ':fb,c tcz~m "analog . 20 telephony" hemin denotes traditional analog Iow-frequency audi,v voi.oE
si.gnal.s typically under 3T~, sometimes referred to as "~0'pS" ("PZaa~. OLd 7.'elephone Sezvi.ce"), wb.ereas tb.e tern, a. "tea.epbox~y" in: genoral denotes any kind of t~l.Ephvz~.e sezvice, including digital sez-v~ice such as Zz~.t~grated Services Digital Netwwz~k (ISDN)_ The term "high-frequency" l~ezein denotes az~y freduency substantially 25 above such analog tel.epbany audio frequen.ci.es, such as that used for data. JSD~i' typi.caJ.Ly uses .frecluen.czes not exceeding IgO:L~I~ (typi.cally the energy is con.cen9rated around. 40TH). The term "tea.epb.on.e i.iue" herein dextotes electrically-conducting lines whi.cb. are intended priznaza.ly for, the carrying and di.stributi.on. of analog telephony, and includes, but i.s o.ot limited to, such 1341C~~o 'n ~e n~..
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08-01-2003 CA 02452987 2004-O1-05 ~ IL0100954 D'1 /08 ' 03 'l 0 : 3'I N0 . 24"1. 06!'14 el.ecta;ically-wnductzng lines which may be pre-existing within. a. bt~,ilding and ~,~ch msy currently provide analog telephony service. The terxx~ "telephone device" heroin. den.vtes, without limitation., any apparatus for tel.eph.ozay (i,~a.cludin,g both, a~ralog tei.eglaozay anal XSDT'~, as well as any device using 5 telephony signals, such as fax, voice-raodem, and so ~vxtb..
Tta.e juractian. box 34 is used to separate the in-home circuitry from the PSTN and is used as a test facility fox troubleshooting as well as ~ox new wiring .
in .the b.vxn.e. !.\ pl.ural.ity . of tel.ephanes may cv~anect to telephone ii~es S via a plurality of telephone outlets 35a, 35b, 35c, and 35a. Each outlet has a ~o~a.~n.ectvr . 14 (omen referred tv as a "jack"), den.vted xx~ k'ig. 4 as, 36a, 3Gb, 36c, anal 36d, respectively. rn Norfh-America, RJ-11 is comm.vnly used for a jaclc. Each outlet znay be co~nn.ECted tv a telephone unit via a "plug'? av~nn.ectoz that inserts into the jack.
Network 40 is narm.ally cvz~fa.guxed izzto a . serial ar "dai.sy-chained'' 1.5 topology,~wherei~: the wiring is cbnnected frmn oae outlet to the next in a li.ncar manner, but othEx tvpvXvgies such as star, tree, or any arbiixaxy typology nn.ay also be used.. Regardless oi: the .tvpvl.ogy, however, the telephvz~e wiring system within. a residence always uses wired zaa.Edi.a.: two or four copper wires along with one or more outlets which. provide direct access to tla.ese wires.for connecting to 20~ telephone sets.
Zt is v~cn: desirable to sinaultancously use existing telephone wiring simultaneously ~vr, both. telephony and data networking. In t'~xs way, establishing a new local area network. in a home or other buxJ.ding is simplzf.ed, because there is r~o need to in;stal,~ addztaonal wiring. U.S. Patent 4,766,4Q2 to Crane 25 (hereinafter referred to as "Crane") teaches a Focal llsEa Network ever standard two-vJixe telephone lines, but does not simultar~eousby support telcph.v~oy.
As another example, relevant prior-axt in this Eeld i,s discl~ased ire U.S.
patent 5,96.443 to Dichtez~ (.h.ereiaxa~er referred to as "Dicht~.r.").
Dichter suggests a method and app~aratu.s for applyi.zag a frequem.cy domain /
divi.si.on.
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r__t __:~~nQmi~nnn~ n9~~2 ~mr,f ~,~ ~92n a nn~
~8-~1-2003 CA 02452987 2004-O1-05 IL0100954 0'I /08 ' C13 '10: 3'1 NO . 24'1 a7/'( 4 multiplexing (~1a1~ techrai.que fvr ;iesidentaal telephone wizin.g, enabling the simultao,eaus carrying of telephony and. data communication si.zial.s. 'T'b.c available bandwidth over the wiring is split into a low-frequency band capable af.
carrying aa. analog tel>rphony signal., anal a high,-frequency band capable at caz~ryi.>ag data communication signals. In such a mechan.i.sra, tel.cpborzy is not affi'ected, while a data communication capability is provided over existing telepbo><7.e vvizzz><.g vai.'tlaiz~ a b.vzz>Le:
The concept o~ frequency dvx~o.ai~o. / divi.si.on mu.Itiplexing (FD1V,1) i.s well.-knawn i.n the art, and p~rvvidea mans v~ splitting floe laan.dwidth carried by a wire 1.0 into a l,ow-frequea.cy band capable of. carzyxz~.g an sn.alog telephony signal aad a high-frequency band capable v~ ca~yi.z~.g data car<~oxnut~ication ar other signals.
Such. a ~rn.ecb,az~.i,sm. zs desc~.-ibed, 1'oz exax><7.ple, in U.S. Patent 4,785x9.48 to Reichext et a1. (he~-eiraaz~~e~~d to as "Rei.chert"'). Also widely used are xDST~
systems, pz~ixoarily /lsymzu.etxi.c Digital Subscriber. J~oop (A'DSL) systezzas.
In addition to illustrating a residential telepb.v>ne system., Fig. 4 also shvvfs floe arran,gem.>~nt of a Richter networlc. Netwvric ~4Q serves both. analog telephones and provides a local area netwazlc o1' data uui.ts. Data Terminal ~uiprn.ent (RTE}
units 7a, ?b, anal 7c are connected tv ~tl:~c local, area network via Data Gominuzucation Equiprn.erat (17C~) units 39a, 39b, aa.d 39c, respectively.
. 20 examples o1; Data Communi.catioz~. Equipment include, but are not lir~n,ited to, rb.ade~s, line drivers, Iine receivers, anal txan.sceivers (the tezzn.
"transceiver', herein, denotes a Combined transm.xttEr. ~a.d. receiver}, which enables corrununicatian. ever. tel.epb,one line 5. DCE waits 39x, 39b, an,d 39c are respectively connected tv high. pass ,filters (IqP'F) 3Sa, 3$b, and 3Sc, wb.i,cb. allow access tv the bigb-frequency band caxri,ed by tel.ephvne line 5. Jn ard.er to avoid inte~'ezen.ce to the data netwar~ caused. by the tcl,epban.es, low pass fxl.tezs (LPF's) 37a, 37b, and 3?c aa~e added tv isvl.ate tb.e I'GTS caa~,yizi,g band, 5a that telephones 2.~a, ~2b, and 22c connects to telephvn.e l.i.n.e ~ for pravi,din.g PSTN.
134.'1098-1 !~.0 ~ . I~nc AMENDED SHEET
Fmnf poi t'_n~m~f'~III l'.-~ I1~'_'~d I-mof nr ~~~n P flfl7 08-01-2003 cA, 02452987 2004-O1-05 IL0100954 01 f08 ' e33 10:31 No.241 08f14 Furthermore, a low Bass filter may also connected to 3unction Box 34 (not sb.own, in the f gore), in order to filter. n.oi.so induced fxozn or to PSTN wiring 33.
Fig. 5 shows a telephone Iine-based LlaN 50 wherein the data network is used for carrying both voIP telephony anl. regular DTE network data. dubs 31a, 31.b, and 31.c allow cvz~.ecting respective T?TI-: units 7a, 7b, and 7e as well a~
respective ~l,' t~l~h.ones 7<7a, 17b, anal ~.7c to respective single network connecti.on.s via pC>: units 39a, 39b, anal 39c. ,~na.l.og telephones 22a, 22b, and 22~c are also. shown connected via respective low pass filtezs (LPF's) 3'~a, 3'~b, and. 37c to the telephone. outsets 35a, 3Sc, 35d.. Thus, the analog tel.epb.ones are 1.0 couz~ected dzrectly to tt~e artaJvg telegb,az~.~ liz~.c S.
In. order, to el.imiz~.at~ tb.c need for 1P tElephones ,17a, I7b, and L7c, az~d to pezmat using analog telephone sets 22a, 22b, a~a.d 2Zc instead, adapters 21a, 21,b, and 2Ic (Fig. 3) must be added, as descz~ibed previ.ously.~Fig. G shows a network G0, where this is done. I1' telephones 17a, 17b, arid ,1.7c of n.etworlc 50 are I5 replaced by analog telcphon.e sets 22d, 2Ze, and 22f, respectively, connected to hubs 41a, 41b , and 41c, respectively, via adapters 21a, Zlb, ara.d 21c rospective3.y_ Fig. G dezzr.vn.stratcs tl~e complexi'~ o:f such a cvr~.figuxaxion_ A,t least thz~ee types of external devices are requazed: 17GE units 39a, 39b, and 39c; hubs' 41a, 20 alb, anal 41c; arid adapters Zla, 21b, and 21c. Each. of these devices usually requires a separate powex oozn7.ecti.on, which adds to tla.e complexity of tb.e cvz~nections. Thus, such a network i.s complex and d~l..fF.a.oult to install, operate, and mait~taiz~. .Tn tb.e prior art, it is suggested to integrate the D.CF, ~PF, and LPF
ca~pvz~.ents into vutl.ets 35a, 35b, and 35c. Nevertheless, external, hubs 41a, 41.b, 25 and 41c, as well as adapters 21a., 21b, and 21c sti,l,I innpose ad.dity.oz~al. con~.plexity in such a netwozk.
Sim.i.l.arly, 'PTO O1/Z~2'15 to $ullock et al. describes a systera~ used to carry analog telephony over. existing power Iin.es within a premises. 7-his solution.
reduires many citern.al units such, as base unit 102, PLC T!F 103, PIrC 1lF I
OG
9~,~~ne ~,n nn n....
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~8-~1-2003 CA 02452987 2004-O1-05 IL0100954 x1108 '03 1Q:32 f~o.i?41 09114 and extension unit 107. 'T7~.e requirement for. such. multiple arad dif.~erent units adds cvnoplexity anal makes fih.e in.stal,lati.on cwnbezsvm,e and di,~htcult.
There .is tlyus a widely recognized need for, azad it would be highly advantageous to have, a means for a7J.owing the use oT' analog (POTS) telephone sets in. LAN ! v'oZT' environments witlavut z~equiritn.g additi.oz~al external. devices or power sources and allowing easy installation, operation, and maintenance.
'~'bi.s goal is met by the present invention.
SUMMARS~ OF TI~E INZ~ENTION
The present invez~tivn, rn.alces it easy and. convenient to use analog l0 ("POTS") tel.eph,v>ne sets int a packet teLepk~ony envixonm.ent,.
including, but uvt limited. to, TP telephony via VoIP technology. The invention. provides an outset for a Local t~,rea Network (LAN), with an integrated an.alvg/Vvl3' adapter.
The vutl,et h.as a stan.dazd an.al.og tel.~b.ora.e jack (e.g. Ii3-1I in Noxtb.
America) allvwlug an analog teLepb.one Set to be directly connected ta, and used with., a packet telephony system.
in, a ~.rst ezn:bodirn.ent, an. outlet according to the pzesent invention is used.
with an ordinary LAN envirv~uz~cnt, such. as Etbernet lOBaseT (ZEEE802.3). The outlet. allows connecting analog teiephvne sets to t~.e x,..l~,'~I via the integrated analogIVoIP adapter, supports analog telephony vvez tb.e T./.-~N media, and can also support a standard netwozk data coz~z~ection using a~n. integzated multi-part uxrit (e.g. hub, switch, or router).- Fvr. standard network data cvnn.ections, the outlet also ir~.oludes a data networking jack (e.g. RJ~45 if lOBaseT ox 1.00BaseTX
is used) connected to a port.
934~09~_19-OR E-5ac AMENDED SHEET
Fmof ~c,it'_flplflll'~fifl~ (lR'_'~~, I-mot nr '_~~ N Illlu In another embodiment, the outlet enables a LAN to be based on in-building telephone wiring, in a home or Small Office / Home Office (SoHo) environment. A paclcet-based LAN is implemented, and outlets according to the present invention serve as both telephone outlets and network outlets. This allows for direct and convenient connection of analog telephone sets to VoIP
packet telephony over the data network. In such an arrangement, the regular analog telephony service remains unaffected, because the low-frequency analog portion of the spectrum is isolated by the FDM technique. As noted above, the outlet may also support a network data connection, using an integrated multi-port unit (e.g. hub, switch or routes), and in this case also includes a data network jack (e.g. RJ-45 if lOBaseT or 100BaseTX is used) connected to a port.
Outlets according to the present invention can be installed as part of an original network installation, as a retrofit to an existing network, or to set up a network over existing telephone wiring.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is herein described, by way of non-limiting example only, with reference to the accompanying drawings, wherein:
Fig. 1 shows a prior ant local area network supporting IP telephony.
Fig. 2 shows a prior art local area network supporting IP telephony, using analog telephone sets.
Fig. 3 shows a prior art local area network supporting both IP telephony using analog telephone sets and DTE connectivity.
Fig. 4 shows a prior ant local area network over telephone lines.
Fig. 5 shows a prior art local area network over telephone lines supporting both IP telephony and DTE connectivity.
Fig. 6 shows a prior art local area network over telephone lines supporting both IP telephony using analog telephone sets and DTE connectivity.
Figs. 7a and 7b show schematically outlets according to different embodiments of the invention.
Fig. 8 shows a local area network supporting both IP telephony using analog telephone sets and DTE connectivity, employing outlets according to the 5 present invention.
Fig. 9 illustrates an outlet supporting analog telephony and packet telephony according to the present invention.
Fig. 10 illustrates a local area network over telephone lines supporting both IP telephony using analog telephone sets and DTE connectivity, employing 10 outlets according to the present invention.
Fig. 11 illustrates a first outlet according to the present invention for providing life-line telephone capability for a telephone normally used in pacl~et telephony.
Fig. 12 illustrates a second outlet according to the present invention for providing life-line telephone capability in conjunction with a data network, where analog telephone signals are provided via a separate conductor.
Fig. 13 illustrates a third outlet according to the present invention for providing life-line telephone capability in conjunction with a data network, where analog telephone signals are separated using FDM.
Fig. 14 illustrates a global network connected via a gateway to a local network existing within a building, and which provides packet telephony services to analog telephones via in-building outlets according to the present invention.
Fig. 15 illustrates a general form of an outlet according to the present invention, which can seine in various wired network environments, such as CATV and electrical power networks.
DETAILED DESCRIPTION OF THE INVENTION
The principles and operation of a network according to the present invention may be understood with reference to the drawings and the accompanying description. The drawings and descriptions are conceptual only.
In actual practice, a single component can implement one or more functions;
alternatively, each function can be implemented by a plurality of components and circuits. In the drawings and descriptions, identical reference numerals indicate those components that are common to different embodiments or configurations.
Figs. 7a and 7b shows schematically outlets 70 and 75 according to two different embodiments of the invention. As shown in Fig. 7b, the outlet 75 includes a VoIP to analog telephony adapter 21. Outlet 75 connects to data network wiring via a connector 71. Connector 71 is preferably located at the rear of outlet 75, where outlet 75 mechanically mounts to an interior wall of a building. Outlet 75 connects to an analog telephone set via a jack 72. Jack 72 is preferably located at the front, or "panel" of outlet 75, which is visible when outlet 75 is mounted on an interior wall of a building. Jack 72 can be an RJ-jack, which is commonly used in North America for analog telephony. Outlet 75 allows connecting an analog telephone set (via jaclc 72) to the data network via connector 71, bridged by an adapter 21. As shown in Fig. 7a, the outlet 70 also includes the adapter 21, but further includes a hub 31 and a data jack 73, which is comlected directly to hub 31. Because of the hub 31, the outlet 70 allows both an analog telephone (via j ack 72) and a data unit (via j ack 73) to be connected to the data networlc via connector 71. Preferably, both jack 72 and jack 73 are located at the front, or "panel" of outlet 70.
Fig. 8 shows a Local Area Network (LAN) 80 according to the present invention. Basically, the infiasti-ucture of network 80 is the same as that of prior art network 10 (Fig. 1), in which hub 11 is connected in a 'star' topology to various end units via network wiring 13a, 13b, and 13c, and outlets 15a, 15b, and 15c. However, according to the present invention, outlets 15a, 15b, and 15c of the prior art network 10 are replaced by outlets 70a, 75b, and 70c, respectively, each of which contain an adapter as previously described with reference to Figs. 7a and 7b of the drawings. For example, outlet 75b has a built-in adapter 21b. Outlet 75b allows for connection of an analog telephone set 22b using a cable 6b. Similarly, outlets 70a and 70c allow analog telephone sets 22a and 22c, respectively, to be connected to the networlc via cables 6a and 6c, respectively, using internal adapters 21a and 21c, respectively. Hubs 31a and 31c integrated within outlets 70a and 70c, respectively, allow for the connection of DTE units 7a and 7c, respectively, to the network, in addition to analog telephones 22a and 22c, respectively. Network 80 allows networl~ing of both DTE units 7a and 7c and analog telephone sets 22a, 22b, and 22c, and instances of such a network may consist solely of instances of outlet 75 (Fig. 7b), supporting only analog telephony over the network, may consist solely of instances of outlet 70 (Fig. 7a), supporting both telephony and data networl~ing, or a mixed configuration as shown in Fig. 8.
Network 80 offers the advantages of the VoIP tech~lology, yet allows the use of common analog telephones, in the normal way of connecting an ordinary telephone, simply by plugging the telephone's standard connector into the jack 72 within the outlet.
Although outlets 70 and 75 so far have been described as having a single analog telephone connection, it is understood that multiple analog telephone jacks 72 can be supported, wherein separate adapters 21 are used to interface to each telephone jack within the outlets. Similarly, multiple data networking interfaces 73 can be supported in each outlet 70, each connected to different port of hub 31 as shown in Fig. 7a.
Powering outlets 70 and 75, as well as the analog telephones (via adapter 21) can be implemented either locally by connecting a power supply to each outlet, or, preferably, via the networlc itself. In the latter case, commonly known as "Power over LAN", the power can be carried to the outlet from a central location either by an additional wire pair, using the well-l~nown phantom configuration, or by the FDM (Frequency Division / Domain Multiplexing) method. The latter commonly employs DC feeding, which is frequency-isolated from the data carried in the higher pant of the spectrum.
In another embodiment, the invention is used in a data network over in-building telephone lines, where the analog telephony signals are carried in the low-frequency portion of the spectrum, and the data communication signals are carried in the high-frequency portion. Fig. 9 shows an outlet 90 according the present invention, which is able to separate and combine signals in different portions of the spectrum. Outlet 90 connects to the telephone wiring via a connector 91, preferably located at the rear pant of outlet 90, where outlet mechanically mounts to an interior wall of the building. A Low Pass Filter (LPF) 37 in outlet 90 is used for isolating the analog telephony part of the spectrum, for connecting an analog telephone via a jack 92. Jack 92 is preferably a standard telephone jack, such as RJ-11 in North-America. Data communication signals are isolated by a High Pass Filter (HPF) 38, which connects to a Data Communications Equipment (DCE) unit 39, containing a modem for data communications over the telephone line media. An integrated hub 41 allows sharing data between VoIP adapter 21 and a data jack 93, for connecting external devices to the network via DEC unit 39 with a standard data networking interface (such as a lOBaseT interface per IEEE802.3). The adapter 21 allows connection of an analog telephone set to a jack 94, similar to jack 92, as previously described, thereby allowing digitized / packetized analog voice signals used by an analog telephone coimected to the jack 94 to be multiplexed on data signals received by the data j ack 93. Jack 94 is preferably a standard telephone j ack, such as RJ-11 in North-America. Outlet 90 supports both standard analog telephony (via jack 92) as well as VoIP telephony using a standard analog telephone, via jack 94.
The principles and operation of a network according to the present invention may be understood with reference to the drawings and the accompanying description. The drawings and descriptions are conceptual only.
In actual practice, a single component can implement one or more functions;
alternatively, each function can be implemented by a plurality of components and circuits. In the drawings and descriptions, identical reference numerals indicate those components that are common to different embodiments or configurations.
Figs. 7a and 7b shows schematically outlets 70 and 75 according to two different embodiments of the invention. As shown in Fig. 7b, the outlet 75 includes a VoIP to analog telephony adapter 21. Outlet 75 connects to data network wiring via a connector 71. Connector 71 is preferably located at the rear of outlet 75, where outlet 75 mechanically mounts to an interior wall of a building. Outlet 75 connects to an analog telephone set via a jack 72. Jack 72 is preferably located at the front, or "panel" of outlet 75, which is visible when outlet 75 is mounted on an interior wall of a building. Jack 72 can be an RJ-jack, which is commonly used in North America for analog telephony. Outlet 75 allows connecting an analog telephone set (via jaclc 72) to the data network via connector 71, bridged by an adapter 21. As shown in Fig. 7a, the outlet 70 also includes the adapter 21, but further includes a hub 31 and a data jack 73, which is comlected directly to hub 31. Because of the hub 31, the outlet 70 allows both an analog telephone (via j ack 72) and a data unit (via j ack 73) to be connected to the data networlc via connector 71. Preferably, both jack 72 and jack 73 are located at the front, or "panel" of outlet 70.
Fig. 8 shows a Local Area Network (LAN) 80 according to the present invention. Basically, the infiasti-ucture of network 80 is the same as that of prior art network 10 (Fig. 1), in which hub 11 is connected in a 'star' topology to various end units via network wiring 13a, 13b, and 13c, and outlets 15a, 15b, and 15c. However, according to the present invention, outlets 15a, 15b, and 15c of the prior art network 10 are replaced by outlets 70a, 75b, and 70c, respectively, each of which contain an adapter as previously described with reference to Figs. 7a and 7b of the drawings. For example, outlet 75b has a built-in adapter 21b. Outlet 75b allows for connection of an analog telephone set 22b using a cable 6b. Similarly, outlets 70a and 70c allow analog telephone sets 22a and 22c, respectively, to be connected to the networlc via cables 6a and 6c, respectively, using internal adapters 21a and 21c, respectively. Hubs 31a and 31c integrated within outlets 70a and 70c, respectively, allow for the connection of DTE units 7a and 7c, respectively, to the network, in addition to analog telephones 22a and 22c, respectively. Network 80 allows networl~ing of both DTE units 7a and 7c and analog telephone sets 22a, 22b, and 22c, and instances of such a network may consist solely of instances of outlet 75 (Fig. 7b), supporting only analog telephony over the network, may consist solely of instances of outlet 70 (Fig. 7a), supporting both telephony and data networl~ing, or a mixed configuration as shown in Fig. 8.
Network 80 offers the advantages of the VoIP tech~lology, yet allows the use of common analog telephones, in the normal way of connecting an ordinary telephone, simply by plugging the telephone's standard connector into the jack 72 within the outlet.
Although outlets 70 and 75 so far have been described as having a single analog telephone connection, it is understood that multiple analog telephone jacks 72 can be supported, wherein separate adapters 21 are used to interface to each telephone jack within the outlets. Similarly, multiple data networking interfaces 73 can be supported in each outlet 70, each connected to different port of hub 31 as shown in Fig. 7a.
Powering outlets 70 and 75, as well as the analog telephones (via adapter 21) can be implemented either locally by connecting a power supply to each outlet, or, preferably, via the networlc itself. In the latter case, commonly known as "Power over LAN", the power can be carried to the outlet from a central location either by an additional wire pair, using the well-l~nown phantom configuration, or by the FDM (Frequency Division / Domain Multiplexing) method. The latter commonly employs DC feeding, which is frequency-isolated from the data carried in the higher pant of the spectrum.
In another embodiment, the invention is used in a data network over in-building telephone lines, where the analog telephony signals are carried in the low-frequency portion of the spectrum, and the data communication signals are carried in the high-frequency portion. Fig. 9 shows an outlet 90 according the present invention, which is able to separate and combine signals in different portions of the spectrum. Outlet 90 connects to the telephone wiring via a connector 91, preferably located at the rear pant of outlet 90, where outlet mechanically mounts to an interior wall of the building. A Low Pass Filter (LPF) 37 in outlet 90 is used for isolating the analog telephony part of the spectrum, for connecting an analog telephone via a jack 92. Jack 92 is preferably a standard telephone jack, such as RJ-11 in North-America. Data communication signals are isolated by a High Pass Filter (HPF) 38, which connects to a Data Communications Equipment (DCE) unit 39, containing a modem for data communications over the telephone line media. An integrated hub 41 allows sharing data between VoIP adapter 21 and a data jack 93, for connecting external devices to the network via DEC unit 39 with a standard data networking interface (such as a lOBaseT interface per IEEE802.3). The adapter 21 allows connection of an analog telephone set to a jack 94, similar to jack 92, as previously described, thereby allowing digitized / packetized analog voice signals used by an analog telephone coimected to the jack 94 to be multiplexed on data signals received by the data j ack 93. Jack 94 is preferably a standard telephone j ack, such as RJ-11 in North-America. Outlet 90 supports both standard analog telephony (via jack 92) as well as VoIP telephony using a standard analog telephone, via jack 94.
Thus, outlet 90 supports tluee types of interface: Regular analog telephony (via jack 92), data communications (via jaclc 93), and VoIP telephony (via jack 94). A subset of such functionalities can also be provided. For example, an outlet solely supporting VoIP telephony can be implemented, eliminating the need for LPF 37 and jack 92, as well as eliminating hub 41 and jack 93. In such a case, adapter 21 directly connects to DCE unit 39.
Fig. 10 illustrates a networl~ 100 that operates over telephone lines 5a, 5b, 5c, 5d, and 5e according to the present invention. Network 100 employs outlets 90a, 90d, 95b and 96c. Outlet 95b differs from outlet 90a and outlet 90d by not having PSTN support, because no low-pass filter (LPF) and associated jack are present in outlet 95b as in outlet 90a and outlet 90d. Similarly, outlet 96c allows only for PSTN connection by employing LPF 37b and an analog telephone connector jack. Any mixture of such outlets (90a, 90d, 95b and 96c) is possible.
Network 100 of Fig. 10 supports regular PSTN telephony service via analog telephone sets 22a, 22b, and 22c. Simultaneously, VoIP telephony services can be accessed by analog telephone sets 22d, 22e, and 22f. In addition, data networl~ing can be accomplished by data units 7a, 7b and 7c.
Although outlets 90a and 90d are each described above as having a single PSTN/POTS telephone connection, it is understood that multiple PSTN/POTS
telephone interfaces can be supported within a single outlet. Similarly, it is understood that multiple VoIP/POTS telephone interfaces can be supported via multiple adapters (such as adapter 21a) within an outlet. Similarly, multiple data network interfaces can be included within an outlet, each connected to different poet of the respective hub (such as hub 41a).
Life-line The term "life-line" refers to the concept of the telephone as a basic and emergency service, whose functionality must be maintained. As such, it is required that malfunctions in any other system or service (e.g. electricity) will not degrade the telephone system capability. In practical terms, this means that as long as an operative telephone set is actively connected to the telephone exchange via uninten-upted two-wires, the telephone service will be maintained, even in the case of a failure of electrical power.
A major drawback of using VoIP technology according to hitherto-5 proposed schemes is that life-line capability is not suppouted, and any failure of the data network (e.g. power outage, or hub, DCE, or software failure) will result in loss of the IP-telephony based service. The absence of "life-line"
capability with regard to analog telephone 22d may be seen in Fig. 10. Thus, analog telephone 22d is connected via the data network through adapter 21 a, hub 41 a, 10 and DCE unit 39a, and thus a power failure or failure of any one of these active devices will cause a loss of service via analog telephone 22d. Hence analog telephone 22d does not have "life-line" capability. The same is tl-ue of analog telephones 22e and 22f.
In contrast, however, analog telephone 22a is connected to telephone line 15 5a / Sb through a low-pass filter 37a. LPF 37a is a passive device of relatively high reliability and immunity to failure. Thus, analog telephone 22a retains life line capability as part of the PSTN network. This also holds for analog telephone 22c. Thus, network 100 has partial life-line capability.
Fig. 11 illustrates an outlet 110 according to the present invention for insuring universal life-line capability. Outlet employs a relay 112 which operates in a 'fall-away' mode, as is well-known in the art. Relay 112 is the principal component added to those components in outlet 90a to provide a telephone connection which for the most part is based on packet telephony, but which also provides life-line capability. Outlet 110 has several jacks. A jack 93 connects directly to a hub 41 to provide a full-time data connection. A jack 92 connects directly to a low-pass filter 37 to provide a full-time analog telephony connection. A jack 117 connects to a pole 112a of relay 112. A throw 112b of relay 112 is connected to adapter 21, which provides conversion between VoIP
packet telephony and analog telephony. A throw 112c, however, is connected to LPF 37. In non-energized state, pole 112a connects to pole 112c. A Sensor 111 controls the state of relay 112, depending on the availability of data communications on the network. Inputs 113, 114, 115, and 116 to sensor 111 come from adapter 21, hub 41, DCE unit 39, and the input to high-pass filter 38, respectively and thus sensor 111 is able to detect any failure of the local or network data path, such as no network activity, loss of network power, or any other fault condition. In normal operation, when network data communications are functioning, relay 112 is triggered to connect jack 117 to adapter 21, and thus j ack 117 normally connects an analog telephone to a packet telephony network via a VoIP / analog adapter. In the event of any failure of network data communications or power outage, sensor 111 releases relay 112 to switch jack 117 to LPF 37, and thus an analog telephone connected to jack 117 remains active even if the data network is inoperative, provided that the analog telephone service is available. Outlet 110 thus has life-line capability while normally supporting packet telephony. Under these circumstances, jack 92 may not be necessary and can be eliminated. It will be understood that while in the preceding description, a mechanical relay is used for the above switching functionality, any switching mechanism can be equally employed. Thus, within the context of the description and the appended claims, the term "relay" encompasses any electro-mechanical and electronic switches adapted to connect a common connection to either of two possible connections in response to an external trigger.
Fig. 12 illustrates another embodiment of an outlet according to the present invention for providing life-line capability. Whereas outlet 110 (Fig.
11) has been described with reference to a telephone line data networking environment, which has analog telephony inherently available, Fig. 12 illustrates an outlet 120 which can be applied to any LAN. Relay 112 and sensor 111 perfomn the same functions as previously described for outlet 110. However, analog telephone signals are not commonly available in network environments used strictly for data, and are therefore provided to outlet 120 via a connector 122 by dedicated wiring, preferably carried along with the network wiring structure.
A line 121 carries tile signals from connector 122 to a throw of relay 112.
Alternatively, the analog telephony signals may be carried on the network wiring, such as by using FDM. Fig. 13 illustrates an outlet 130 for use in such a case, where a POTS isolation unit 131 feeds the analog signal via line 121 to relay 112.
Fig. 14 illustrates the main application of the present invention. A network 140 includes part or all of network 100, which exists within a building.
Network 140 connects to an IP network 142, operated by a sezvice provider or 'IP-carrier', and which carries both data and voice (using the VoIP technique). A gateway 141 is used for bridging the in-building network to IP network 142, and is connected to existing in-home telephone wiring 5a, 5b, and 5c. This configuration allows the IP-carrier to provide both data and voice services, eliminating the need to modify or add in-building wiring, and requiring only replacement of the telephone outlets.
Although the invention has been so far demonstrated as relating to telephone wiring and telephone outlets, the invention can be similarly applied to any type of wired networl~ing within a building, such as CATV or electrical power wiring. Fig. 15 illustrates an outlet 150, which is a general embodiment of the present invention. Outlet 150 is similar in overall layout to outlet 90 (Fig. 9).
Outlet 150 connects to the relevant wiring via a comlector 151 and contains an integrated data/service splitter/combiner unit 152, which isolates the data carried over the wiring from the main service signal. In the case of telephony, unit contains a low-pass filter (such as LPF 37) and a high-pass filter (such as HPF
38). In the case of electrical power wiring, the AC power is split by unit 152 and fed to a socket 154, for supplying electrical power as normal. Tn such a case, a modem 153 being a power-line canier (PLC) modem interfaces the hub 41 to the integrated data/sei-vice splitter/combiner unit 152, and allows data communi-cation over the power line. Similarly, in the case of a CATV application, where the CATV wiring is used for the networl~ infrastructure, a coaxial cable modem is used as modem 153 and unit 152 isolates the CATV signal from the data signal.
Although the invention has been so far described as relating to IP-based data networks, the invention can be similarly applied to any type of packet data network. Furthermore, although packet networks are the most important for wide area networks, the invention is not restricted to packet networks only, and can be applied to any digital data network, where voice signals are digitized and carried in digital foam.
Furthermore, although the invention has been described as relating to networks based on continuous electrical conducting media (telephone, CATV, or electrical power), and the relevant modem and associated circuitry are connected in parallel to the wiring infrastructure, the invention can be applied equally to the case wherein the wiring is not continuous, but is cut into discrete segments as disclosed in WO 00/07322 to the present inventor, which is incorporated by reference for all purposes as if fully set forth herein.
While the invention has been described with respect to a limited number of embodiments, it will be appreciated that many variations, modifications and other applications of the invention may be made.
Fig. 10 illustrates a networl~ 100 that operates over telephone lines 5a, 5b, 5c, 5d, and 5e according to the present invention. Network 100 employs outlets 90a, 90d, 95b and 96c. Outlet 95b differs from outlet 90a and outlet 90d by not having PSTN support, because no low-pass filter (LPF) and associated jack are present in outlet 95b as in outlet 90a and outlet 90d. Similarly, outlet 96c allows only for PSTN connection by employing LPF 37b and an analog telephone connector jack. Any mixture of such outlets (90a, 90d, 95b and 96c) is possible.
Network 100 of Fig. 10 supports regular PSTN telephony service via analog telephone sets 22a, 22b, and 22c. Simultaneously, VoIP telephony services can be accessed by analog telephone sets 22d, 22e, and 22f. In addition, data networl~ing can be accomplished by data units 7a, 7b and 7c.
Although outlets 90a and 90d are each described above as having a single PSTN/POTS telephone connection, it is understood that multiple PSTN/POTS
telephone interfaces can be supported within a single outlet. Similarly, it is understood that multiple VoIP/POTS telephone interfaces can be supported via multiple adapters (such as adapter 21a) within an outlet. Similarly, multiple data network interfaces can be included within an outlet, each connected to different poet of the respective hub (such as hub 41a).
Life-line The term "life-line" refers to the concept of the telephone as a basic and emergency service, whose functionality must be maintained. As such, it is required that malfunctions in any other system or service (e.g. electricity) will not degrade the telephone system capability. In practical terms, this means that as long as an operative telephone set is actively connected to the telephone exchange via uninten-upted two-wires, the telephone service will be maintained, even in the case of a failure of electrical power.
A major drawback of using VoIP technology according to hitherto-5 proposed schemes is that life-line capability is not suppouted, and any failure of the data network (e.g. power outage, or hub, DCE, or software failure) will result in loss of the IP-telephony based service. The absence of "life-line"
capability with regard to analog telephone 22d may be seen in Fig. 10. Thus, analog telephone 22d is connected via the data network through adapter 21 a, hub 41 a, 10 and DCE unit 39a, and thus a power failure or failure of any one of these active devices will cause a loss of service via analog telephone 22d. Hence analog telephone 22d does not have "life-line" capability. The same is tl-ue of analog telephones 22e and 22f.
In contrast, however, analog telephone 22a is connected to telephone line 15 5a / Sb through a low-pass filter 37a. LPF 37a is a passive device of relatively high reliability and immunity to failure. Thus, analog telephone 22a retains life line capability as part of the PSTN network. This also holds for analog telephone 22c. Thus, network 100 has partial life-line capability.
Fig. 11 illustrates an outlet 110 according to the present invention for insuring universal life-line capability. Outlet employs a relay 112 which operates in a 'fall-away' mode, as is well-known in the art. Relay 112 is the principal component added to those components in outlet 90a to provide a telephone connection which for the most part is based on packet telephony, but which also provides life-line capability. Outlet 110 has several jacks. A jack 93 connects directly to a hub 41 to provide a full-time data connection. A jack 92 connects directly to a low-pass filter 37 to provide a full-time analog telephony connection. A jack 117 connects to a pole 112a of relay 112. A throw 112b of relay 112 is connected to adapter 21, which provides conversion between VoIP
packet telephony and analog telephony. A throw 112c, however, is connected to LPF 37. In non-energized state, pole 112a connects to pole 112c. A Sensor 111 controls the state of relay 112, depending on the availability of data communications on the network. Inputs 113, 114, 115, and 116 to sensor 111 come from adapter 21, hub 41, DCE unit 39, and the input to high-pass filter 38, respectively and thus sensor 111 is able to detect any failure of the local or network data path, such as no network activity, loss of network power, or any other fault condition. In normal operation, when network data communications are functioning, relay 112 is triggered to connect jack 117 to adapter 21, and thus j ack 117 normally connects an analog telephone to a packet telephony network via a VoIP / analog adapter. In the event of any failure of network data communications or power outage, sensor 111 releases relay 112 to switch jack 117 to LPF 37, and thus an analog telephone connected to jack 117 remains active even if the data network is inoperative, provided that the analog telephone service is available. Outlet 110 thus has life-line capability while normally supporting packet telephony. Under these circumstances, jack 92 may not be necessary and can be eliminated. It will be understood that while in the preceding description, a mechanical relay is used for the above switching functionality, any switching mechanism can be equally employed. Thus, within the context of the description and the appended claims, the term "relay" encompasses any electro-mechanical and electronic switches adapted to connect a common connection to either of two possible connections in response to an external trigger.
Fig. 12 illustrates another embodiment of an outlet according to the present invention for providing life-line capability. Whereas outlet 110 (Fig.
11) has been described with reference to a telephone line data networking environment, which has analog telephony inherently available, Fig. 12 illustrates an outlet 120 which can be applied to any LAN. Relay 112 and sensor 111 perfomn the same functions as previously described for outlet 110. However, analog telephone signals are not commonly available in network environments used strictly for data, and are therefore provided to outlet 120 via a connector 122 by dedicated wiring, preferably carried along with the network wiring structure.
A line 121 carries tile signals from connector 122 to a throw of relay 112.
Alternatively, the analog telephony signals may be carried on the network wiring, such as by using FDM. Fig. 13 illustrates an outlet 130 for use in such a case, where a POTS isolation unit 131 feeds the analog signal via line 121 to relay 112.
Fig. 14 illustrates the main application of the present invention. A network 140 includes part or all of network 100, which exists within a building.
Network 140 connects to an IP network 142, operated by a sezvice provider or 'IP-carrier', and which carries both data and voice (using the VoIP technique). A gateway 141 is used for bridging the in-building network to IP network 142, and is connected to existing in-home telephone wiring 5a, 5b, and 5c. This configuration allows the IP-carrier to provide both data and voice services, eliminating the need to modify or add in-building wiring, and requiring only replacement of the telephone outlets.
Although the invention has been so far demonstrated as relating to telephone wiring and telephone outlets, the invention can be similarly applied to any type of wired networl~ing within a building, such as CATV or electrical power wiring. Fig. 15 illustrates an outlet 150, which is a general embodiment of the present invention. Outlet 150 is similar in overall layout to outlet 90 (Fig. 9).
Outlet 150 connects to the relevant wiring via a comlector 151 and contains an integrated data/service splitter/combiner unit 152, which isolates the data carried over the wiring from the main service signal. In the case of telephony, unit contains a low-pass filter (such as LPF 37) and a high-pass filter (such as HPF
38). In the case of electrical power wiring, the AC power is split by unit 152 and fed to a socket 154, for supplying electrical power as normal. Tn such a case, a modem 153 being a power-line canier (PLC) modem interfaces the hub 41 to the integrated data/sei-vice splitter/combiner unit 152, and allows data communi-cation over the power line. Similarly, in the case of a CATV application, where the CATV wiring is used for the networl~ infrastructure, a coaxial cable modem is used as modem 153 and unit 152 isolates the CATV signal from the data signal.
Although the invention has been so far described as relating to IP-based data networks, the invention can be similarly applied to any type of packet data network. Furthermore, although packet networks are the most important for wide area networks, the invention is not restricted to packet networks only, and can be applied to any digital data network, where voice signals are digitized and carried in digital foam.
Furthermore, although the invention has been described as relating to networks based on continuous electrical conducting media (telephone, CATV, or electrical power), and the relevant modem and associated circuitry are connected in parallel to the wiring infrastructure, the invention can be applied equally to the case wherein the wiring is not continuous, but is cut into discrete segments as disclosed in WO 00/07322 to the present inventor, which is incorporated by reference for all purposes as if fully set forth herein.
While the invention has been described with respect to a limited number of embodiments, it will be appreciated that many variations, modifications and other applications of the invention may be made.
Claims (29)
1. An outlet (75) comprising a casing having fixing means for mechanical attachment to, or mounting in, a wall of the building, so as to connect connectors fixedly mounted to said casing to wiring within the building and thus allow an appliance to be connected to the wiring by removable coupling to the outlet;
characterized in that:
the outlet contains an adapter (21a) within said casing, the adapter having a connector (71) mounted in said casing and adapted for connection to the wiring within a building and the adapter having a telephone jack mounted in said casing and adapted (72) for connecting an analog telephone set thereto and the adapter being adapted to convert between voice signals in digital form conveyed along said wiring and analog telephone signals conveyed to and from the connector.
characterized in that:
the outlet contains an adapter (21a) within said casing, the adapter having a connector (71) mounted in said casing and adapted for connection to the wiring within a building and the adapter having a telephone jack mounted in said casing and adapted (72) for connecting an analog telephone set thereto and the adapter being adapted to convert between voice signals in digital form conveyed along said wiring and analog telephone signals conveyed to and from the connector.
2. The outlet (75) of Claim 1, wherein the adapter supports the Internet Protocol.
3. The outlet (70) of Claim 1 or 2, furthermore operative to connecting a data unit (7a) to a digital network constituted by said wiring, the outlet further comprising:
a data communication jack (73) for connecting the data unit thereto; and a multi-port hub (31) coupled to said connector (71) and to said data communication jack (73) and being operative to simultaneously connect to said adapter (21) and to the data unit (7a).
a data communication jack (73) for connecting the data unit thereto; and a multi-port hub (31) coupled to said connector (71) and to said data communication jack (73) and being operative to simultaneously connect to said adapter (21) and to the data unit (7a).
4. The outlet of Claim 3, wherein said data communication jack is RJ-45 compatible.
5. The outlet of any one of Claims 1 to 4, further comprising a low-pass filter (37) having an input connected to the connector (91) for connection to said wiring and having an output coupled to a telephone jack (92) for connection of an analog telephone thereto.
6. The outlet of Claim 5, being furthermore operative to establishing life-line communications, and further comprising a relay (112) operative to disconnect the telephone jack (117) from the adapter (21) and connect the telephone jack (117) to the low-pass filter (37).
7. The outlet of any one Claims 1 to 6, further including an integrated unit (152), for isolating data carried over the wiring from a main service signal.
8. The outlet of any one of Claims 1 to 3, further including an integrated unit (152), for isolating data carried over the wiring from a main service signal, wherein the main service signal carried by said wiring is telephony, and the integrated unit (152) includes a low-pass filter (37) and a high-pass filter (38).
9. The outlet of Claim 8,being furthermore operative to establishing life-line communications, and further comprising a relay (112) operative to disconnect the telephone jack from the adapter (21) and connect the telephone jack to the low-pass filter (37).
10. The outlet of any one of Claims 7 to 9, wherein the main service signal carried by said wiring is an electrical AC power signal and the integrated unit (152) is adapted to split the AC power and feed it to a socket (154), there being further included a power-line carrier (PLC) modem for interfacing the hub (41) to the integrated unit, and allowing data communication over the AC power line.
11. The outlet of Claim 7, wherein the main service signal carried by said wiring is a CATV signal and the integrated unit (152) is adapted to isolate the CATV signal from the data signal, there being further included a coaxial cable modem for interfacing the hub (41) to the integrated unit, and allowing data communication over the CATV wiring.
12. The outlet (75) of Claim 1, wherein the adapter (21a) is powered by via said wiring.
13. The outlet (75) of Claim 12, wherein. the wiring includes at least one additional wire pair adapted to convey power to the outlet.
14. The outlet (75) of Claim 12, wherein common wiring is used to convey data and power.
15. The outlet (75) of Claim 14, wherein the wiring includes at least one additional wire pair adapted to covey power to the outlet using a phantom configuration.
16. The outlet (75) of Claim 14, wherein the wiring includes at least one additional wire pair adapted to convey power to the outlet using Frequency, Domain Multiplexing (FDM).
17. A network (80) operative to carry voice signals in digital form and operative to connect an analog telephone set (22a, 22b, 22c), the network comprising wiring (13a, 13b, 13c) and a least one outlet (70a, 75b, 70c) according to any one of Claims 1 to 16.
18. The network of Claim 17, wherein the wiring is based on telephone wiring.
19. The telephone network as in Claim 17 or 18, furthermore operative to carrying voice signals in digital form based on the Internet Protocol.
20. The network of any one of Claims 17 to 19, wherein, said outlet (70a, 70c) is further operative to connecting a data unit (7a, 7c) to the network, the outlet further comprising:
a data communication, jack (73a, 73c) for connecting the data unit; and a multi-port hub (31a) coupled to said connector (71) and to said data communication jack (73a, 73c) and being operative to simultaneously connect to said adapter (21a, 21c) and to the data unit (7a, 7c).
a data communication, jack (73a, 73c) for connecting the data unit; and a multi-port hub (31a) coupled to said connector (71) and to said data communication jack (73a, 73c) and being operative to simultaneously connect to said adapter (21a, 21c) and to the data unit (7a, 7c).
21. The network of Claim 20, wherein said data communication jack is RJ-45 compatible.
22. The network of any one of Claims 17 to 21, wherein the outlet further comprises a low-pass filter (37) having an input connected to the connector (91) for connection to said wiring and having an output coupled to a telephone jack (92) for connection of an analog telephone thereto.
23. The network of claim 22, being furthermore operative to establishing life-line communications, wherein the outlet further comprises a relay (112) operative to disconnect the telephone jack (117) from the adapter (21) and connect the telephone jack (117) to the low-pass filter (37).
24. The network of any one of Claims 17 to 21, further including an integrated unit (152), for isolating data carried over the wiring from a main service signal.
25. The network of Claim 24, wherein the main service signal carried by said wiring is telephony, and the integrated unit (152) includes a low-pass filter (37) and a high-pass filter (38).
26. The network of Claim 24, wherein the main service signal carried by said wiring is an electrical AC power signal and the integrated unit (152) is adapted to split the AC power and feed it to a socket (154), there being further included a power-line carrier (PLC) modem for interfacing the hub (41) to the integrated unit, and adapted to convey data over the AC power line.
27. The network of Claim 24, wherein the main service signal carried by said wiring is a CATV signal and the integrated unit (152) is adapted to isolate the CATV signal from the data signal, there being further included a coaxial cable modem for interfacing the hub (41) to the integrated unit, and adapted to convey data communication over the CATV wiring.
28. The network according to any one of claims 17 to 27, wherein the wiring includes an additional wire pair adapter to convey power to the outlet using a phantom configuration.
29. The network according to any one of claims 17 to 27, wherein the wiring includes an additional wire pair adapted to convey power to the outlet using Frequency Division / Domain Multiplexing.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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CA2719156A CA2719156A1 (en) | 2001-07-05 | 2001-10-15 | Telephone outlet with packet telephony adapter, and a network using same |
CA2719159A CA2719159A1 (en) | 2001-07-05 | 2001-10-15 | Telephone outlet with packet telephony adapter, and a network using same |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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IL144158 | 2001-07-05 | ||
IL144158A IL144158A (en) | 2001-07-05 | 2001-07-05 | Outlet for connecting an analog telephone set to a digital data network carrying voice signals in digital form |
PCT/IL2001/000954 WO2003005691A1 (en) | 2001-07-05 | 2001-10-15 | Telephone outlet with packet telephony adapter, and a network using same |
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CA2719156A Division CA2719156A1 (en) | 2001-07-05 | 2001-10-15 | Telephone outlet with packet telephony adapter, and a network using same |
CA2719159A Division CA2719159A1 (en) | 2001-07-05 | 2001-10-15 | Telephone outlet with packet telephony adapter, and a network using same |
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CA2452987A1 CA2452987A1 (en) | 2003-01-16 |
CA2452987C true CA2452987C (en) | 2011-01-11 |
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CA2719159A Abandoned CA2719159A1 (en) | 2001-07-05 | 2001-10-15 | Telephone outlet with packet telephony adapter, and a network using same |
CA2719156A Abandoned CA2719156A1 (en) | 2001-07-05 | 2001-10-15 | Telephone outlet with packet telephony adapter, and a network using same |
CA2452987A Expired - Fee Related CA2452987C (en) | 2001-07-05 | 2001-10-15 | Telephone outlet with packet telephony adapter, and a network using same |
Family Applications Before (2)
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CA2719159A Abandoned CA2719159A1 (en) | 2001-07-05 | 2001-10-15 | Telephone outlet with packet telephony adapter, and a network using same |
CA2719156A Abandoned CA2719156A1 (en) | 2001-07-05 | 2001-10-15 | Telephone outlet with packet telephony adapter, and a network using same |
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US (6) | US7542554B2 (en) |
EP (2) | EP2222071B1 (en) |
KR (3) | KR100968012B1 (en) |
CN (2) | CN101621595B (en) |
AT (2) | ATE515143T1 (en) |
CA (3) | CA2719159A1 (en) |
ES (1) | ES2386954T3 (en) |
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WO (1) | WO2003005691A1 (en) |
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- 2001-10-15 US US10/469,576 patent/US7542554B2/en not_active Expired - Fee Related
- 2001-10-15 EP EP10162261A patent/EP2222071B1/en not_active Expired - Lifetime
- 2001-10-15 KR KR1020097022808A patent/KR100968012B1/en not_active IP Right Cessation
- 2001-10-15 WO PCT/IL2001/000954 patent/WO2003005691A1/en active Application Filing
- 2001-10-15 AT AT01978798T patent/ATE515143T1/en not_active IP Right Cessation
- 2001-10-15 AT AT10162261T patent/ATE557522T1/en active
- 2001-10-15 KR KR10-2004-7000077A patent/KR20040016969A/en active Application Filing
- 2001-10-15 EP EP01978798A patent/EP1402713B1/en not_active Expired - Lifetime
- 2001-10-15 CA CA2719159A patent/CA2719159A1/en not_active Abandoned
- 2001-10-15 CA CA2719156A patent/CA2719156A1/en not_active Abandoned
- 2001-10-15 ES ES10162261T patent/ES2386954T3/en not_active Expired - Lifetime
- 2001-10-15 CN CN2009102038515A patent/CN101621595B/en not_active Expired - Fee Related
- 2001-10-15 CN CNB018235492A patent/CN100518227C/en not_active Expired - Fee Related
- 2001-10-15 CA CA2452987A patent/CA2452987C/en not_active Expired - Fee Related
- 2001-10-15 KR KR1020087007744A patent/KR100913851B1/en not_active IP Right Cessation
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2004
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2010
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2014
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WO2003005691A1 (en) | 2003-01-16 |
US8761186B2 (en) | 2014-06-24 |
ATE557522T1 (en) | 2012-05-15 |
CA2719159A1 (en) | 2003-01-16 |
CN101621595B (en) | 2013-04-03 |
US20050063403A1 (en) | 2005-03-24 |
KR20090117845A (en) | 2009-11-12 |
CA2452987A1 (en) | 2003-01-16 |
EP1402713B1 (en) | 2011-06-29 |
US7542554B2 (en) | 2009-06-02 |
US20100189098A1 (en) | 2010-07-29 |
KR100968012B1 (en) | 2010-07-07 |
KR20080042154A (en) | 2008-05-14 |
EP2222071A1 (en) | 2010-08-25 |
EP1402713A1 (en) | 2004-03-31 |
US7680255B2 (en) | 2010-03-16 |
US20140254585A1 (en) | 2014-09-11 |
CA2719156A1 (en) | 2003-01-16 |
CN101621595A (en) | 2010-01-06 |
US20040125819A1 (en) | 2004-07-01 |
CN1545798A (en) | 2004-11-10 |
KR20040016969A (en) | 2004-02-25 |
KR100913851B1 (en) | 2009-08-26 |
ES2386954T3 (en) | 2012-09-07 |
US20050083959A1 (en) | 2005-04-21 |
US7769030B2 (en) | 2010-08-03 |
US8472593B2 (en) | 2013-06-25 |
ATE515143T1 (en) | 2011-07-15 |
IL144158A0 (en) | 2002-05-23 |
CN100518227C (en) | 2009-07-22 |
EP2222071B1 (en) | 2012-05-09 |
US20100103928A1 (en) | 2010-04-29 |
IL144158A (en) | 2011-06-30 |
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