CA2092841C - Bidirectional video telephony between cable television and switched telephone systems - Google Patents

Bidirectional video telephony between cable television and switched telephone systems

Info

Publication number
CA2092841C
CA2092841C CA002092841A CA2092841A CA2092841C CA 2092841 C CA2092841 C CA 2092841C CA 002092841 A CA002092841 A CA 002092841A CA 2092841 A CA2092841 A CA 2092841A CA 2092841 C CA2092841 C CA 2092841C
Authority
CA
Canada
Prior art keywords
telephone
location
video telephone
cable
call
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
CA002092841A
Other languages
English (en)
French (fr)
Other versions
CA2092841A1 (en
Inventor
Walter Patrick Binns
Nuri Ruhi Dagdeviren
Khashayar Mohammadi
Andreas Constantine Papanicolaou
Deirdre Therese Hoesl Ryan
Cheng David Yu
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.)
AT&T Corp
Original Assignee
American Telephone and Telegraph Co Inc
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 American Telephone and Telegraph Co Inc filed Critical American Telephone and Telegraph Co Inc
Publication of CA2092841A1 publication Critical patent/CA2092841A1/en
Application granted granted Critical
Publication of CA2092841C publication Critical patent/CA2092841C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H04N7/147—Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H04N7/148—Interfacing a video terminal to a particular transmission medium, e.g. ISDN
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13103—Memory
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13106—Microprocessor, CPU
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13141—Hunting for free outlet, circuit or channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13196—Connection circuit/link/trunk/junction, bridge, router, gateway
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13199—Modem, modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13205—Primary rate access, PRI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13209—ISDN
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13292—Time division multiplexing, TDM
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13332—Broadband, CATV, dynamic bandwidth allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13345—Intelligent networks, SCP
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13353—Routing table, map memory

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Telephonic Communication Services (AREA)
CA002092841A 1992-07-29 1993-03-29 Bidirectional video telephony between cable television and switched telephone systems Expired - Lifetime CA2092841C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US921,881 1992-07-29
US07/921,881 US5329308A (en) 1992-07-29 1992-07-29 Bidirectional video telephony between cable television and switched telephone systems

Publications (2)

Publication Number Publication Date
CA2092841A1 CA2092841A1 (en) 1994-01-30
CA2092841C true CA2092841C (en) 1997-06-10

Family

ID=25446112

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002092841A Expired - Lifetime CA2092841C (en) 1992-07-29 1993-03-29 Bidirectional video telephony between cable television and switched telephone systems

Country Status (5)

Country Link
US (1) US5329308A (en, 2012)
EP (1) EP0584938A3 (en, 2012)
JP (1) JP2820867B2 (en, 2012)
CA (1) CA2092841C (en, 2012)
TW (1) TW269083B (en, 2012)

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Also Published As

Publication number Publication date
EP0584938A2 (en) 1994-03-02
CA2092841A1 (en) 1994-01-30
TW269083B (en, 2012) 1996-01-21
JPH06217020A (ja) 1994-08-05
JP2820867B2 (ja) 1998-11-05
US5329308A (en) 1994-07-12
EP0584938A3 (en) 1997-06-25

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Legal Events

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