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GB2177873B - Communications system - Google Patents

Communications system

Info

Publication number
GB2177873B
GB2177873B GB8518307A GB8518307A GB2177873B GB 2177873 B GB2177873 B GB 2177873B GB 8518307 A GB8518307 A GB 8518307A GB 8518307 A GB8518307 A GB 8518307A GB 2177873 B GB2177873 B GB 2177873B
Authority
GB
United Kingdom
Prior art keywords
communications system
communications
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
Application number
GB8518307A
Other versions
GB8518307D0 (en
GB2177873A (en
Inventor
Ian Arthur Davidson
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.)
Marconi Electronic Devices Ltd
Original Assignee
Marconi Electronic Devices Ltd
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 Marconi Electronic Devices Ltd filed Critical Marconi Electronic Devices Ltd
Priority to GB8518307A priority Critical patent/GB2177873B/en
Publication of GB8518307D0 publication Critical patent/GB8518307D0/en
Publication of GB2177873A publication Critical patent/GB2177873A/en
Application granted granted Critical
Publication of GB2177873B publication Critical patent/GB2177873B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
    • H04L5/1484—Two-way operation using the same type of signal, i.e. duplex using time-sharing operating bytewise
    • H04L5/1492—Two-way operation using the same type of signal, i.e. duplex using time-sharing operating bytewise with time compression, e.g. operating according to the ping-pong technique
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties
    • H04M9/022—Multiplex systems
    • H04M9/025—Time division multiplex systems, e.g. loop systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Radio Relay Systems (AREA)
GB8518307A 1985-07-19 1985-07-19 Communications system Expired GB2177873B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8518307A GB2177873B (en) 1985-07-19 1985-07-19 Communications system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8518307A GB2177873B (en) 1985-07-19 1985-07-19 Communications system

Publications (3)

Publication Number Publication Date
GB8518307D0 GB8518307D0 (en) 1985-08-29
GB2177873A GB2177873A (en) 1987-01-28
GB2177873B true GB2177873B (en) 1989-11-22

Family

ID=10582556

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8518307A Expired GB2177873B (en) 1985-07-19 1985-07-19 Communications system

Country Status (1)

Country Link
GB (1) GB2177873B (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6181335B1 (en) 1992-12-09 2001-01-30 Discovery Communications, Inc. Card for a set top terminal
US6408437B1 (en) 1992-12-09 2002-06-18 Discovery Communications, Inc. Reprogrammable terminal for suggesting programs offered on a television program delivery system
US6463585B1 (en) 1992-12-09 2002-10-08 Discovery Communications, Inc. Targeted advertisement using television delivery systems
US6515680B1 (en) 1992-12-09 2003-02-04 Discovery Communications, Inc. Set top terminal for television delivery system
US6539548B1 (en) 1992-12-09 2003-03-25 Discovery Communications, Inc. Operations center for a television program packaging and delivery system
US6738978B1 (en) 1992-12-09 2004-05-18 Discovery Communications, Inc. Method and apparatus for targeted advertising
US7073187B1 (en) 1992-12-09 2006-07-04 Sedna Patent Services, Llc Menu-driven television program access system and method
US7207055B1 (en) 1992-12-09 2007-04-17 Sedna Patent Services, Llc Bandwidth allocation for a television program delivery system
US9009773B1 (en) 1998-06-30 2015-04-14 Cox Communications, Inc. Method and apparatus for providing broadcast data services

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7509270B1 (en) 1992-12-09 2009-03-24 Discovery Communications, Inc. Electronic Book having electronic commerce features
US7336788B1 (en) 1992-12-09 2008-02-26 Discovery Communicatoins Inc. Electronic book secure communication with home subsystem
US8073695B1 (en) 1992-12-09 2011-12-06 Adrea, LLC Electronic book with voice emulation features
US9286294B2 (en) 1992-12-09 2016-03-15 Comcast Ip Holdings I, Llc Video and digital multimedia aggregator content suggestion engine
US6201536B1 (en) * 1992-12-09 2001-03-13 Discovery Communications, Inc. Network manager for cable television system headends
US7168084B1 (en) 1992-12-09 2007-01-23 Sedna Patent Services, Llc Method and apparatus for targeting virtual objects
US7849393B1 (en) 1992-12-09 2010-12-07 Discovery Communications, Inc. Electronic book connection to world watch live
US7835989B1 (en) 1992-12-09 2010-11-16 Discovery Communications, Inc. Electronic book alternative delivery systems
US7401286B1 (en) 1993-12-02 2008-07-15 Discovery Communications, Inc. Electronic book electronic links
US9053640B1 (en) 1993-12-02 2015-06-09 Adrea, LLC Interactive electronic book
US7861166B1 (en) 1993-12-02 2010-12-28 Discovery Patent Holding, Llc Resizing document pages to fit available hardware screens
US8095949B1 (en) 1993-12-02 2012-01-10 Adrea, LLC Electronic book with restricted access features
US7865567B1 (en) 1993-12-02 2011-01-04 Discovery Patent Holdings, Llc Virtual on-demand electronic book
JP2991046B2 (en) * 1994-07-22 1999-12-20 三菱電機株式会社 Master-slave communication method
GB2295070B (en) * 1994-11-09 1999-11-17 Alps Electric Co Ltd Multiplex communication system
US7793326B2 (en) 2001-08-03 2010-09-07 Comcast Ip Holdings I, Llc Video and digital multimedia aggregator
US7908628B2 (en) 2001-08-03 2011-03-15 Comcast Ip Holdings I, Llc Video and digital multimedia aggregator content coding and formatting

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1210037A (en) * 1968-08-28 1970-10-28 Western Electric Co Improvements in or relating to multichannel delta modulation message transmission systems
GB1362472A (en) * 1971-01-19 1974-08-07 Siemens Ag Telecommunications exchange systems
GB1433241A (en) * 1973-02-06 1976-04-22 Plessey Co Ltd Time division multiplex telecommunications switching system
GB1508854A (en) * 1975-07-04 1978-04-26 Ibm Data handling system
EP0033469A1 (en) * 1980-01-30 1981-08-12 Siemens Aktiengesellschaft Method and circuit arrangement for transmitting binary signals between peripheral units
EP0049568A1 (en) * 1980-10-03 1982-04-14 Northern Telecom Limited TASI system including an order wire
GB2105148A (en) * 1981-07-23 1983-03-16 Standard Telephones Cables Ltd Telecommunication exchange

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1210037A (en) * 1968-08-28 1970-10-28 Western Electric Co Improvements in or relating to multichannel delta modulation message transmission systems
GB1362472A (en) * 1971-01-19 1974-08-07 Siemens Ag Telecommunications exchange systems
GB1433241A (en) * 1973-02-06 1976-04-22 Plessey Co Ltd Time division multiplex telecommunications switching system
GB1508854A (en) * 1975-07-04 1978-04-26 Ibm Data handling system
EP0033469A1 (en) * 1980-01-30 1981-08-12 Siemens Aktiengesellschaft Method and circuit arrangement for transmitting binary signals between peripheral units
EP0049568A1 (en) * 1980-10-03 1982-04-14 Northern Telecom Limited TASI system including an order wire
GB2105148A (en) * 1981-07-23 1983-03-16 Standard Telephones Cables Ltd Telecommunication exchange

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WO A1 80/00771 *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6181335B1 (en) 1992-12-09 2001-01-30 Discovery Communications, Inc. Card for a set top terminal
US6408437B1 (en) 1992-12-09 2002-06-18 Discovery Communications, Inc. Reprogrammable terminal for suggesting programs offered on a television program delivery system
US6463585B1 (en) 1992-12-09 2002-10-08 Discovery Communications, Inc. Targeted advertisement using television delivery systems
US6515680B1 (en) 1992-12-09 2003-02-04 Discovery Communications, Inc. Set top terminal for television delivery system
US6539548B1 (en) 1992-12-09 2003-03-25 Discovery Communications, Inc. Operations center for a television program packaging and delivery system
US6738978B1 (en) 1992-12-09 2004-05-18 Discovery Communications, Inc. Method and apparatus for targeted advertising
US7017178B1 (en) 1992-12-09 2006-03-21 Sedna Patent Services, Llc Audio program reception terminal for television delivery system
US7073187B1 (en) 1992-12-09 2006-07-04 Sedna Patent Services, Llc Menu-driven television program access system and method
US7207055B1 (en) 1992-12-09 2007-04-17 Sedna Patent Services, Llc Bandwidth allocation for a television program delivery system
US7590993B1 (en) 1992-12-09 2009-09-15 Comcast Ip Holdings I, Llc Method and apparatus for gathering programs watched data
US9009773B1 (en) 1998-06-30 2015-04-14 Cox Communications, Inc. Method and apparatus for providing broadcast data services

Also Published As

Publication number Publication date
GB8518307D0 (en) 1985-08-29
GB2177873A (en) 1987-01-28

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee
728C Application made for restoration (sect. 28/1977)
728A Order made restoring the patent (sect. 28/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20040719