DE68925815T2 - Multimode-modem - Google Patents

Multimode-modem

Info

Publication number
DE68925815T2
DE68925815T2 DE68925815T DE68925815T DE68925815T2 DE 68925815 T2 DE68925815 T2 DE 68925815T2 DE 68925815 T DE68925815 T DE 68925815T DE 68925815 T DE68925815 T DE 68925815T DE 68925815 T2 DE68925815 T2 DE 68925815T2
Authority
DE
Germany
Prior art keywords
multimode modem
multimode
modem
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE68925815T
Other languages
English (en)
Other versions
DE68925815D1 (en
Inventor
John Greszczuk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
Codex Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Codex Corp filed Critical Codex Corp
Publication of DE68925815D1 publication Critical patent/DE68925815D1/de
Application granted granted Critical
Publication of DE68925815T2 publication Critical patent/DE68925815T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
DE68925815T 1988-05-12 1989-05-10 Multimode-modem Expired - Lifetime DE68925815T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/192,952 US4931250A (en) 1988-05-12 1988-05-12 Multimode modem
PCT/US1989/002017 WO1989011183A1 (en) 1988-05-12 1989-05-10 Multimode modem

Publications (2)

Publication Number Publication Date
DE68925815D1 DE68925815D1 (en) 1996-04-04
DE68925815T2 true DE68925815T2 (de) 1996-10-10

Family

ID=22711703

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68925815T Expired - Lifetime DE68925815T2 (de) 1988-05-12 1989-05-10 Multimode-modem

Country Status (8)

Country Link
US (1) US4931250A (de)
EP (1) EP0416013B1 (de)
JP (1) JP2996994B2 (de)
CA (1) CA1331648C (de)
DE (1) DE68925815T2 (de)
FI (1) FI905579A0 (de)
HK (1) HK1009320A1 (de)
WO (1) WO1989011183A1 (de)

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WO1991011870A1 (en) * 1990-02-02 1991-08-08 Codex Corporation An interface adapter
JP3062215B2 (ja) * 1990-03-30 2000-07-10 沖電気工業株式会社 アナログ・フロント・エンド回路
JP2511591B2 (ja) * 1990-10-29 1996-06-26 インターナショナル・ビジネス・マシーンズ・コーポレイション 無線光通信システムの動作方法および光通信システム
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US5649301A (en) * 1992-10-19 1997-07-15 Ntt Mobile Communications Network, Inc. Mobile communication method for controlling origination or termination of a call in a desired network
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EP0596648A1 (de) * 1992-11-02 1994-05-11 National Semiconductor Corporation Erkennung du Fähigkeiten eines Netzendpunkts
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WO1994013094A1 (fr) * 1992-11-25 1994-06-09 France-Telecom Procede de mise en communication automatique en duplex ou semi-duplex de deux equipements a travers une ligne telephonique
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US5513212A (en) * 1993-11-15 1996-04-30 At&T Corp. Conversion of a fax modulation to a data modulation
DE69421512T2 (de) * 1994-01-14 2000-05-18 Ibm Verfahren zur automatischen Anpassung und zum automatischen Konfigurieren der Bitrate eines ISDN Terminatlanpassungsgerät zu 56 kbps oder 64 kbps
US5446771A (en) * 1994-01-24 1995-08-29 Motorola, Inc. Adaptive coherent signal detection method and apparatus
US5442629A (en) * 1994-02-24 1995-08-15 International Business Machines Corporation Token ring speed detector
US5619539A (en) * 1994-02-28 1997-04-08 International Business Machines Corporation Data detection methods and apparatus for a direct access storage device
US6463132B1 (en) * 1994-04-27 2002-10-08 Canon Kabushiki Kaisha Communication system having the capability of selecting an optimum communication mode from a plurality of modes, depending on the type of equipment at a party to be communicated with
JP3161910B2 (ja) * 1994-07-26 2001-04-25 シャープ株式会社 通信装置
US5732104A (en) * 1994-12-14 1998-03-24 Motorola, Inc. Signalling techniques and device for high speed data transmission over voiceband channels
US5533018A (en) 1994-12-21 1996-07-02 National Semiconductor Corporation Multi-protocol packet framing over an isochronous network
JP2727997B2 (ja) * 1995-01-18 1998-03-18 日本電気株式会社 ボーレイト混合伝送システム
US5550881A (en) * 1995-04-13 1996-08-27 Motorola, Inc. Automatic modulation mode selecting unit and method for modems
US5809085A (en) * 1995-06-28 1998-09-15 Motorola Inc. Apparatus and method for detecting and discriminating various signal types in the presence of impulse distortions
US5960035A (en) * 1995-09-29 1999-09-28 Motorola Inc. Method and apparatus for load balancing for a processor operated data communications device
US5802065A (en) * 1995-10-23 1998-09-01 Kawasaki Steel Corporation Data receiving device
JP3472035B2 (ja) * 1996-04-19 2003-12-02 キヤノン株式会社 ファクシミリ装置
US6055268A (en) * 1996-05-09 2000-04-25 Texas Instruments Incorporated Multimode digital modem
US5805597A (en) * 1996-06-04 1998-09-08 National Semiconductor Corporation Method and apparatus for providing low power basic telephony type service over a twisted pair ethernet physical layer
US5787116A (en) * 1996-06-18 1998-07-28 Motorola Inc. Apparatus and method for detecting amplitude modulated answer back toned signals
US5751796A (en) * 1996-06-21 1998-05-12 Paradyne Corporation Rapid startup protocol for communication between a plurality of modems
US5852631A (en) * 1996-06-21 1998-12-22 Paradyne Corporation System and method for establishing link layer parameters based on physical layer modulation
WO1997049228A1 (en) * 1996-06-21 1997-12-24 Paradyne Corporation A rapid startup protocol for communication between a plurality of modems
US5796808A (en) * 1997-01-09 1998-08-18 Paradyne Corporation System and method for automatically selecting the mode of communication between a plurality of modems
WO1997049229A1 (en) * 1996-06-21 1997-12-24 Paradyne Corporation System and method for automatically selecting the mode of communication between a plurality of modems
US5822404A (en) * 1996-09-30 1998-10-13 Intervoice Limited Partnership System and method for identifying remote communications formats
JP3140381B2 (ja) * 1996-10-30 2001-03-05 松下電送システム株式会社 データ通信装置
US5864545A (en) * 1996-12-06 1999-01-26 Altocom, Inc. System and method for improving convergence during modem training and reducing computational load during steady-state modem operations
US5999979A (en) * 1997-01-30 1999-12-07 Microsoft Corporation Method and apparatus for determining a most advantageous protocol for use in a computer network
US5940438A (en) 1997-02-18 1999-08-17 Mitsubishi Electric Information Technology Center America, Inc (Ita) Universal modem for digital video, audio and data communications
US9118387B2 (en) 1997-11-03 2015-08-25 Qualcomm Incorporated Pilot reference transmission for a wireless communication system
US7184426B2 (en) 2002-12-12 2007-02-27 Qualcomm, Incorporated Method and apparatus for burst pilot for a time division multiplex system
US6381250B1 (en) 1998-01-23 2002-04-30 Innovative Communications Technologies, Inc. Capacity allocation system using semi-autonomous network elements to implement and control a transmission schedule
US6426959B1 (en) 1998-01-20 2002-07-30 Innovative Communications Technologies, Inc. System and method for facilitating component management in a multiple vendor satellite communications network
US6236676B1 (en) 1998-04-17 2001-05-22 Siemens Information And Communication Networks, Inc. Intelligent adaptive modulation system
JPH11331305A (ja) * 1998-05-08 1999-11-30 Sony Corp 送信装置および送信方法、受信装置および受信方法、並びに提供媒体
JP4131052B2 (ja) 1998-07-17 2008-08-13 ソニー株式会社 撮像装置
US6804211B1 (en) * 1999-08-03 2004-10-12 Wi-Lan Inc. Frame structure for an adaptive modulation wireless communication system
US8064409B1 (en) 1999-08-25 2011-11-22 Qualcomm Incorporated Method and apparatus using a multi-carrier forward link in a wireless communication system
US6621804B1 (en) * 1999-10-07 2003-09-16 Qualcomm Incorporated Method and apparatus for predicting favored supplemental channel transmission slots using transmission power measurements of a fundamental channel
JP3545662B2 (ja) * 1999-11-22 2004-07-21 シャープ株式会社 データ通信装置及びデータ通信方法
US6768771B1 (en) * 2000-05-23 2004-07-27 L3-Communications Corporation Multimode modem with automatic negotiation of operational mode
US6973098B1 (en) 2000-10-25 2005-12-06 Qualcomm, Incorporated Method and apparatus for determining a data rate in a high rate packet data wireless communications system
US7068683B1 (en) 2000-10-25 2006-06-27 Qualcomm, Incorporated Method and apparatus for high rate packet data and low delay data transmissions
CA2467700C (en) 2000-11-15 2012-03-20 Ensemble Communications, Inc. Improved frame structure for a communication system using adaptive modulation
US8009667B1 (en) 2001-01-16 2011-08-30 Wi—LAN, Inc. Packing source data packets into transporting packets with fragmentation
IL148314A0 (en) * 2001-03-09 2002-09-12 Mitsubishi Electric Corp Signal discrimination apparatus and signal discrimination method and transmission equipment
US8730991B1 (en) * 2009-01-28 2014-05-20 Smsc Holdings S.A.R.L. Device identification using frequency modulated signal bursts
US8811200B2 (en) 2009-09-22 2014-08-19 Qualcomm Incorporated Physical layer metrics to support adaptive station-dependent channel state information feedback rate in multi-user communication systems
US8645601B2 (en) 2010-06-11 2014-02-04 Smsc Holdings S.A.R.L. Methods and systems for performing serial data communication between a host device and a connected device

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US3716672A (en) * 1971-08-09 1973-02-13 Design Elements Inc Modem cbs/cbt interface
US3842207A (en) * 1973-02-27 1974-10-15 Mi2 Inc Data set control logic
US4215243A (en) * 1978-11-17 1980-07-29 Racal-Vadic Inc. Automatic modem identification system
FR2445079A1 (fr) * 1978-12-20 1980-07-18 Ibm France Procede et dispositif pour detecter une sequence pseudo-aleatoire de changements de phase de 0o et 180o de la porteuse dans un recepteur de donnees
US4578796A (en) * 1983-11-03 1986-03-25 Bell Telephone Laboratories, Incorporated Programmable multiple type data set
US4756007A (en) * 1984-03-08 1988-07-05 Codex Corporation Adaptive communication rate modem
US4727370A (en) * 1985-12-17 1988-02-23 Ampex Corporation Method and system for synchronous handshake generation
IT1216206B (it) * 1986-07-28 1990-02-22 Weltert Alfredo Apparato modulatore-demodulatore in banda fonica per la ricetrasmissione di dati digitali con riconoscimento dei sistemi standard di comunicazione da parte dell'apparato chiamante.

Also Published As

Publication number Publication date
JPH03505272A (ja) 1991-11-14
CA1331648C (en) 1994-08-23
WO1989011183A1 (en) 1989-11-16
EP0416013B1 (de) 1996-02-28
US4931250A (en) 1990-06-05
HK1009320A1 (en) 1999-05-28
DE68925815D1 (en) 1996-04-04
FI905579A0 (fi) 1990-11-12
JP2996994B2 (ja) 2000-01-11
EP0416013A4 (en) 1992-08-26
EP0416013A1 (de) 1991-03-13

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: MOTOROLA, INC., SCHAUMBURG, ILL., US

8327 Change in the person/name/address of the patent owner

Owner name: GENERAL ELECTRIC CAPITAL CORP. (N.D.GES.D. STAATES