JPS5462706A - Procedure and device for transmitting telephone signal and video signal commonly via digital telephone channel - Google Patents

Procedure and device for transmitting telephone signal and video signal commonly via digital telephone channel

Info

Publication number
JPS5462706A
JPS5462706A JP12371778A JP12371778A JPS5462706A JP S5462706 A JPS5462706 A JP S5462706A JP 12371778 A JP12371778 A JP 12371778A JP 12371778 A JP12371778 A JP 12371778A JP S5462706 A JPS5462706 A JP S5462706A
Authority
JP
Japan
Prior art keywords
procedure
signal
via digital
telephone
video signal
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
JP12371778A
Other languages
Japanese (ja)
Other versions
JPS5821460B2 (en
Inventor
Tamubureri Giobuanni
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.)
Telecom Italia SpA
Original Assignee
CSELT Centro Studi e Laboratori Telecomunicazioni SpA
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 CSELT Centro Studi e Laboratori Telecomunicazioni SpA filed Critical CSELT Centro Studi e Laboratori Telecomunicazioni SpA
Publication of JPS5462706A publication Critical patent/JPS5462706A/en
Publication of JPS5821460B2 publication Critical patent/JPS5821460B2/en
Expired 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
    • H04M11/064—Data transmission during pauses in telephone conversation
    • 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)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Television Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
JP53123717A 1977-10-20 1978-10-09 A device for transmitting both telephone and video signals over telephone lines. Expired JPS5821460B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT69348/77A IT1091286B (en) 1977-10-20 1977-10-20 PROCEDURE AND DEVICE FOR JOINT TRANSMISSION OF TELEPHONE SIGNALS AND VIDEO SIGNALS ON NUMERICAL TELEPHONE LINES

Publications (2)

Publication Number Publication Date
JPS5462706A true JPS5462706A (en) 1979-05-21
JPS5821460B2 JPS5821460B2 (en) 1983-04-30

Family

ID=11311934

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53123717A Expired JPS5821460B2 (en) 1977-10-20 1978-10-09 A device for transmitting both telephone and video signals over telephone lines.

Country Status (6)

Country Link
JP (1) JPS5821460B2 (en)
DE (1) DE2845023C2 (en)
FR (1) FR2406920A1 (en)
GB (1) GB2006574B (en)
IT (1) IT1091286B (en)
SE (1) SE439564B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS637047A (en) * 1986-06-27 1988-01-12 Nec Corp Multimedia cummunication method and its transmitter/ receiver

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4330858A (en) * 1979-06-29 1982-05-18 International Business Machines Corporation Time domain supervisory channel for data terminal equipments
DE3044657A1 (en) * 1980-11-27 1982-07-08 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt "SERVICE-INTEGRATED DIGITAL TRANSMISSION SYSTEM"
US4528659A (en) * 1981-12-17 1985-07-09 International Business Machines Corporation Interleaved digital data and voice communications system apparatus and method
JPS60172852A (en) * 1984-02-17 1985-09-06 Nec Corp Multiplex system
GB2162022B (en) * 1984-07-17 1988-03-02 Stc Plc Data transmission system
JPS62144658U (en) * 1986-03-07 1987-09-11
EP0257168B1 (en) * 1986-08-27 1992-06-03 International Business Machines Corporation Pseudo synchronous transportation apparatus in a communication network
EP0258514B1 (en) * 1986-08-27 1992-05-06 International Business Machines Corporation Optimized bandwidth allocation apparatus between circuit slots and packet bit stream in a communication network
JPH0639490U (en) * 1992-11-02 1994-05-27 谷川商事株式会社 Writing instrument having a seal and a correction stamp
FI103700B1 (en) 1994-09-20 1999-08-13 Nokia Mobile Phones Ltd Simultaneous transmission of voice and data in a mobile communication system
GB2294614B (en) * 1994-10-28 1999-07-14 Int Maritime Satellite Organiz Communication method and apparatus
JP3043348U (en) * 1997-05-12 1997-11-18 清二 大田 Stamp with correction stamp

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4945610A (en) * 1972-09-04 1974-05-01

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2157143A5 (en) * 1971-10-19 1973-06-01 Queffeulou Jean Yves
CH577253A5 (en) * 1974-05-17 1976-06-30 Ibm

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4945610A (en) * 1972-09-04 1974-05-01

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS637047A (en) * 1986-06-27 1988-01-12 Nec Corp Multimedia cummunication method and its transmitter/ receiver

Also Published As

Publication number Publication date
GB2006574A (en) 1979-05-02
FR2406920A1 (en) 1979-05-18
GB2006574B (en) 1982-02-10
DE2845023C2 (en) 1982-09-09
DE2845023A1 (en) 1979-05-03
IT1091286B (en) 1985-07-06
FR2406920B1 (en) 1982-04-16
SE439564B (en) 1985-06-17
JPS5821460B2 (en) 1983-04-30
SE7810581L (en) 1979-04-21

Similar Documents

Publication Publication Date Title
GB2013436B (en) Channel selecting apparatus for use with signal receiver and signal recorder
JPS53114413A (en) Method and device for transmitting or recording digital signal
JPS535926A (en) Method and device for transmitting and*or recording color television signal
JPS53135502A (en) Digital signal multiplex transmitting system
JPS5656081A (en) Digital video signal modulating and demodulating device
AU4168578A (en) Encoded multifrequency digital signal receiver
GB2007465B (en) Method and device for extruding a synchronizing signal from an incoming pcm signal
GB2045036B (en) Digital signal transmission apparatus
JPS5466815A (en) Digital signal recorder*reproducer
JPS5462706A (en) Procedure and device for transmitting telephone signal and video signal commonly via digital telephone channel
JPS5461914A (en) Video signal recording method and device
GB2008892B (en) Video signal recording and reproding and apparatus and metthod
JPS54100624A (en) Method of and device for converting video signal
JPS5326A (en) Video signal amplifier for television receiver
JPS54100208A (en) Device for and method of preliminarily connecting digital signal transmission line
JPS54103631A (en) Device for converting multiframe band film video information to tv transmission signal
JPS53115123A (en) Method of and device for transmitting facsimile picture
JPS53114412A (en) Method and device for transmitting and recording digital signal
GB2115639B (en) Digital video signal transmitting apparatus
JPS55161457A (en) Telephone channel signal supply device
JPS53142817A (en) Method of and device for digitizing video signal
JPS57184394A (en) Method and device for mixing low frequency signals transmitted in digital format through different time division channel toward telephone
JPS5389607A (en) Audio and digital signal multiplex double communication device
BG34915A3 (en) Device for transmiting and receiving communication digital signals
GB2000927B (en) Channel selction for television receiver