CA2170785A1 - Upstream transmission using multiple transmission tags and downstream acknowledgments in conditional access packets - Google Patents

Upstream transmission using multiple transmission tags and downstream acknowledgments in conditional access packets

Info

Publication number
CA2170785A1
CA2170785A1 CA002170785A CA2170785A CA2170785A1 CA 2170785 A1 CA2170785 A1 CA 2170785A1 CA 002170785 A CA002170785 A CA 002170785A CA 2170785 A CA2170785 A CA 2170785A CA 2170785 A1 CA2170785 A1 CA 2170785A1
Authority
CA
Canada
Prior art keywords
packets
upstream
conditional access
acknowledgments
downstream
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.)
Granted
Application number
CA002170785A
Other languages
French (fr)
Other versions
CA2170785C (en
Inventor
Caitlin B. Bestler
Harry A. Hartley, Iii
Khosro M. Rabii
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.)
Zenith Electronics LLC
Original Assignee
Zenith Electronics LLC
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 Zenith Electronics LLC filed Critical Zenith Electronics LLC
Publication of CA2170785A1 publication Critical patent/CA2170785A1/en
Application granted granted Critical
Publication of CA2170785C publication Critical patent/CA2170785C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
    • H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video stream decryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1694—Allocation of channels in TDM/TDMA networks, e.g. distributed multiplexers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4623—Processing of entitlement messages, e.g. ECM [Entitlement Control Message] or EMM [Entitlement Management Message]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • H04N7/165—Centralised control of user terminal ; Registering at central
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications

Abstract

Upstream transmissions in a two-way communications network are effected from subscriber terminals in upstream packets having one of a plurality of different separately acknowledgeable acknowledgment tags.
Downstream acknowledgments of upstream messages are contained in CA packets multiplexed with product packets to form a transport bitstream. The transport bitstream is applied to a digital conditional access module (DCAM) in the terminal which is controlled by the conditional access data bits of the CA packets. The DCAM includes a status register for storing the acknowledgment bits of the CA packets, which bits are coupled by a microprocessor for controlling the upstream transmitter.
CA002170785A 1995-03-02 1996-03-01 Upstream transmission using multiple transmission tags and downstream acknowledgments in conditional access packets Expired - Fee Related CA2170785C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/398,208 1995-03-02
US08/398,208 US5517502A (en) 1995-03-02 1995-03-02 Upstream transmission using multiple transmission tags and downstream acknowledgements in conditional access packets

Publications (2)

Publication Number Publication Date
CA2170785A1 true CA2170785A1 (en) 1996-09-03
CA2170785C CA2170785C (en) 2003-04-22

Family

ID=23574441

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002170785A Expired - Fee Related CA2170785C (en) 1995-03-02 1996-03-01 Upstream transmission using multiple transmission tags and downstream acknowledgments in conditional access packets

Country Status (3)

Country Link
US (1) US5517502A (en)
KR (1) KR100274289B1 (en)
CA (1) CA2170785C (en)

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6847611B1 (en) 1990-12-10 2005-01-25 At&T Corp. Traffic management for frame relay switched data service
US9286294B2 (en) 1992-12-09 2016-03-15 Comcast Ip Holdings I, Llc Video and digital multimedia aggregator content suggestion engine
WO1994014279A1 (en) 1992-12-09 1994-06-23 Discovery Communications, Inc. Digital cable headend for cable television delivery system
US7168084B1 (en) 1992-12-09 2007-01-23 Sedna Patent Services, Llc Method and apparatus for targeting virtual objects
US6771617B1 (en) 1993-06-17 2004-08-03 Gilat Satellite Networks, Ltd. Frame relay protocol-based multiplex switching scheme for satellite mesh network
US5434850A (en) 1993-06-17 1995-07-18 Skydata Corporation Frame relay protocol-based multiplex switching scheme for satellite
FR2718594B1 (en) * 1994-04-06 1996-04-26 France Telecom Method for broadcasting programs with progressive conditional access and separating the flow of information.
US5799018A (en) * 1994-05-19 1998-08-25 Nippon Telegraph And Telephone Corp. Method and system for private communication with efficient use of bus type transmission path
US5652795A (en) * 1994-11-14 1997-07-29 Hughes Electronics Method and apparatus for an adapter card providing conditional access in a communication system
US5727065A (en) 1994-11-14 1998-03-10 Hughes Electronics Deferred billing, broadcast, electronic document distribution system and method
US5590202A (en) * 1995-01-18 1996-12-31 Zenith Electronics Corporation Countdown system for conditional access module
JP2792454B2 (en) * 1995-02-09 1998-09-03 日本電気株式会社 Video search system
US5784597A (en) * 1995-09-22 1998-07-21 Hewlett-Packard Company Communications network system including acknowledgement indicating successful receipt of request for reserved communication slots and start time for said reserved communication slots
US6230203B1 (en) 1995-10-20 2001-05-08 Scientific-Atlanta, Inc. System and method for providing statistics for flexible billing in a cable environment
US5966163A (en) * 1995-10-20 1999-10-12 Scientific-Atlanta, Inc. Providing constant bit rate upstream data transport in a two way cable system by scheduling preemptive grants for upstream data slots using selected fields of a plurality of grant fields
US5966636A (en) * 1995-11-29 1999-10-12 Motorola, Inc. Method and apparatus for multiple access over randomized slots with collision detection in a cable telephony system
US7028088B1 (en) * 1996-04-03 2006-04-11 Scientific-Atlanta, Inc. System and method for providing statistics for flexible billing in a cable environment
IT1283073B1 (en) * 1996-05-27 1998-04-07 Italtel Spa STRUCTURING METHOD OF DIGITAL INFORMATION TRANSPORTABLE IN BOTH DIRECTIONS ON A PASSIVE OPTICAL NETWORK (PON) IN ONE SYSTEM
FI101665B (en) 1996-08-23 1998-07-31 Nokia Multimedia Network Termi Improved bidirectional telecommunication connection in a cable television system
US6028860A (en) * 1996-10-23 2000-02-22 Com21, Inc. Prioritized virtual connection transmissions in a packet to ATM cell cable network
US6758755B2 (en) 1996-11-14 2004-07-06 Arcade Planet, Inc. Prize redemption system for games executed over a wide area network
US6324267B1 (en) * 1997-01-17 2001-11-27 Scientific-Atlanta, Inc. Two-tiered authorization and authentication for a cable data delivery system
US6272150B1 (en) 1997-01-17 2001-08-07 Scientific-Atlanta, Inc. Cable modem map display for network management of a cable data delivery system
DE19710972A1 (en) * 1997-03-17 1998-10-01 Ulrich Kretzschmar Method and device for data transmission
US6286058B1 (en) 1997-04-14 2001-09-04 Scientific-Atlanta, Inc. Apparatus and methods for automatically rerouting packets in the event of a link failure
US6071190A (en) * 1997-05-21 2000-06-06 Casino Data Systems Gaming device security system: apparatus and method
FR2764454A1 (en) * 1997-06-10 1998-12-11 Thomson Multimedia Sa CONDITIONAL ACCESS SYSTEM WITH PROGRAMMABLE ACCESS MODE
US6081524A (en) 1997-07-03 2000-06-27 At&T Corp. Frame relay switched data service
GB2332345B (en) 1997-12-09 2002-12-11 Sony Uk Ltd A digital video receiver a conditional access module and a method of transmitting data therebetween
US6614799B1 (en) * 1999-01-20 2003-09-02 Cisco Technology, Inc. Method and apparatus for dynamic adjustment of cable modem back-off parameters in a cable modem network
US6526070B1 (en) * 1999-10-09 2003-02-25 Conexant Systems, Inc. Method and apparatus for upstream burst transmissions synchronization in cable modems
US6424626B1 (en) * 1999-10-29 2002-07-23 Hubbell Incorporated Method and system for discarding and regenerating acknowledgment packets in ADSL communications
EP1290891A2 (en) * 2000-06-02 2003-03-12 General Instrument Corporation A system for improved return path performance for digital communication signals
US7437654B2 (en) * 2000-11-29 2008-10-14 Lucent Technologies Inc. Sub-packet adaptation in a wireless communication system
US7908628B2 (en) 2001-08-03 2011-03-15 Comcast Ip Holdings I, Llc Video and digital multimedia aggregator content coding and formatting
US7793326B2 (en) 2001-08-03 2010-09-07 Comcast Ip Holdings I, Llc Video and digital multimedia aggregator
WO2003071799A2 (en) 2002-02-22 2003-08-28 Nds Limited Scrambled packet stream processing
FR2850511B1 (en) * 2003-01-28 2005-06-03 St Microelectronics Sa USER TERMINAL FOR INTERACTIVE DIGITAL TELEVISION SYSTEM
US9020854B2 (en) 2004-03-08 2015-04-28 Proxense, Llc Linked account system using personal digital key (PDK-LAS)
RU2007127725A (en) 2004-12-20 2009-01-27 ПРОКСЕНС, ЭлЭлСи (US) PERSONAL DATA (PDK) AUTHENTICATION BY BIOMETRIC KEY
JP4806204B2 (en) * 2005-03-30 2011-11-02 株式会社日立国際電気 Encrypted data communication system
US8219129B2 (en) 2006-01-06 2012-07-10 Proxense, Llc Dynamic real-time tiered client access
US11206664B2 (en) 2006-01-06 2021-12-21 Proxense, Llc Wireless network synchronization of cells and client devices on a network
US7904718B2 (en) 2006-05-05 2011-03-08 Proxense, Llc Personal digital key differentiation for secure transactions
US9269221B2 (en) 2006-11-13 2016-02-23 John J. Gobbi Configuration of interfaces for a location detection system and application
WO2009062194A1 (en) 2007-11-09 2009-05-14 Proxense, Llc Proximity-sensor supporting multiple application services
US8171528B1 (en) 2007-12-06 2012-05-01 Proxense, Llc Hybrid device having a personal digital key and receiver-decoder circuit and methods of use
US9251332B2 (en) 2007-12-19 2016-02-02 Proxense, Llc Security system and method for controlling access to computing resources
US8508336B2 (en) 2008-02-14 2013-08-13 Proxense, Llc Proximity-based healthcare management system with automatic access to private information
US11120449B2 (en) 2008-04-08 2021-09-14 Proxense, Llc Automated service-based order processing
JP2010219669A (en) * 2009-03-13 2010-09-30 Toshiba Corp Video server
US8949881B2 (en) * 2009-11-25 2015-02-03 Olivier Koemmerling Card sharing countermeasures
US9418205B2 (en) 2010-03-15 2016-08-16 Proxense, Llc Proximity-based system for automatic application or data access and item tracking
US9322974B1 (en) 2010-07-15 2016-04-26 Proxense, Llc. Proximity-based system for object tracking
US9265450B1 (en) 2011-02-21 2016-02-23 Proxense, Llc Proximity-based system for object tracking and automatic application initialization
WO2014183106A2 (en) 2013-05-10 2014-11-13 Proxense, Llc Secure element as a digital pocket

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4533948A (en) * 1982-04-30 1985-08-06 General Instrument Corporation CATV Communication system
US4633462A (en) * 1983-07-18 1986-12-30 The Board Of Trustees Of The University Of Illinois Multiple access communication on a CATV reverse channel
US4554579A (en) * 1983-12-09 1985-11-19 Zenith Electronics Corporation Two-way CATV system with AML commands
US5371532A (en) * 1992-05-15 1994-12-06 Bell Communications Research, Inc. Communications architecture and method for distributing information services

Also Published As

Publication number Publication date
US5517502A (en) 1996-05-14
KR100274289B1 (en) 2000-12-15
CA2170785C (en) 2003-04-22
KR960036661A (en) 1996-10-28

Similar Documents

Publication Publication Date Title
CA2170785A1 (en) Upstream transmission using multiple transmission tags and downstream acknowledgments in conditional access packets
AU2782092A (en) Digital telephone, cable tv system and local exchange bypass network
EP0003849A3 (en) Digital bus communications system
WO1996021986A3 (en) Multimedia communications via public telephone networks
AU2422292A (en) Full-duplex video communication and document generation system
CA2068387A1 (en) Television signal and atm cell switching system
AU1845995A (en) Cellular digital packet data network transmission system
CA2077458A1 (en) Communications system
EP0606837A3 (en) Multimedia packet communication system.
CA2091816A1 (en) Digital hdtv data packet format and receiver therefor
EP0652650A3 (en) CDMA communication with multiplex transmission of data over a wide range from a low to a high rate.
CA2125704A1 (en) Receiver/Decoder for a Serial Network of I/O Devices
AU7833798A (en) Interactive video communication over a packet data network
FI990970A0 (en) Communication
EP0669765A3 (en) Multipoint digital video communication system.
TW374279B (en) A home and small business phone system for operation on a single internal twisted pair line and methodology for operating the same a telephone system capable of operating on a single internal telephone line as commonly found in the home or small businesses
EP0658063A3 (en) A signaling system for broadband communications networks.
AU5579296A (en) Broadcast transmission in a data network
CA2263971A1 (en) Hybrid atm adaptation layer
CA2075650A1 (en) Frame length control in a data transmission using atm network
AU2003276516A1 (en) Data packet transmission in a single container
CA2460421A1 (en) High speed serial data transport between communications hardware modules
CA2346618A1 (en) Method for avoiding interference in a digital communication system
EP0622710A3 (en) Digital communication network with a moderator station election process.
CA2318395A1 (en) Multifunction video communication service device

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKLA Lapsed

Effective date: 20060301