FR2406920A1 - METHOD AND DEVICE FOR GROUP TRANSMISSION OF TELEPHONE AND VIDEO SIGNALS ON DIGITAL TELEPHONE LINES - Google Patents

METHOD AND DEVICE FOR GROUP TRANSMISSION OF TELEPHONE AND VIDEO SIGNALS ON DIGITAL TELEPHONE LINES

Info

Publication number
FR2406920A1
FR2406920A1 FR7828757A FR7828757A FR2406920A1 FR 2406920 A1 FR2406920 A1 FR 2406920A1 FR 7828757 A FR7828757 A FR 7828757A FR 7828757 A FR7828757 A FR 7828757A FR 2406920 A1 FR2406920 A1 FR 2406920A1
Authority
FR
France
Prior art keywords
bytes
telephone
video signals
bits
detector
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
FR7828757A
Other languages
French (fr)
Other versions
FR2406920B1 (en
Inventor
Giovanni Tamburelli
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 FR2406920A1 publication Critical patent/FR2406920A1/en
Application granted granted Critical
Publication of FR2406920B1 publication Critical patent/FR2406920B1/fr
Granted 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

Abstract

Ce procédé et son dispositif de mise en oeuvre sont destinés à la transmission groupée de signaux téléphoniques et vidéo. Il est prévu, pour chaque ligne téléphonique à l'extrémité d'émission : un détecteur RI capable d'identifier, dans une séquence de trames, les octets de bits non utilisés; une première mémoire tampon B1 capable de mémoriser les bits d'au moins une transmission vidéo sous la commande du détecteur RI; un dispositif de marquage-insertion IM capable d'insérer les bits dans les octets non utilisés, en formant sur la ligne téléphonique une séquence de trames comprenant à la fois des octets de conversation et des octets vidéo et à l'extrémité de réception : un détecteur-diviseur RR capable de distinguer, les deux types d'octets et de les acheminer sur des trajets différents ; et une seconde mémoire tampon B2 capable de mémoriser temporairement les octets appartenant à la transmission vidéo.This method and its implementation device are intended for the group transmission of telephone and video signals. Provision is made for each telephone line at the transmitting end: an RI detector capable of identifying, in a sequence of frames, the bytes of bits not used; a first buffer memory B1 capable of storing the bits of at least one video transmission under the control of the detector RI; an IM mark-insert device capable of inserting the bits into the unused bytes, forming on the telephone line a sequence of frames comprising both talk bytes and video bytes and at the receiving end: a RR detector-divider capable of distinguishing the two types of bytes and of conveying them on different paths; and a second buffer memory B2 capable of temporarily storing the bytes belonging to the video transmission.

FR7828757A 1977-10-20 1978-10-09 METHOD AND DEVICE FOR GROUP TRANSMISSION OF TELEPHONE AND VIDEO SIGNALS ON DIGITAL TELEPHONE LINES Granted FR2406920A1 (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
FR2406920A1 true FR2406920A1 (en) 1979-05-18
FR2406920B1 FR2406920B1 (en) 1982-04-16

Family

ID=11311934

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7828757A Granted FR2406920A1 (en) 1977-10-20 1978-10-09 METHOD AND DEVICE FOR GROUP TRANSMISSION OF TELEPHONE AND VIDEO SIGNALS ON DIGITAL 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
WO1996009708A2 (en) * 1994-09-20 1996-03-28 Nokia Mobile Phones Ltd. Simultaneous transmission of speech and data on a mobile communications system

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
JPS637047A (en) * 1986-06-27 1988-01-12 Nec Corp Multimedia cummunication method and its transmitter/ receiver
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
DE3685587T2 (en) * 1986-08-27 1993-01-28 Ibm PSEUDOSYNCHRONOUS TRANSPORT DEVICE 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
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

Family Cites Families (3)

* 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
JPS5232804B2 (en) * 1972-09-04 1977-08-24
CH577253A5 (en) * 1974-05-17 1976-06-30 Ibm

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996009708A2 (en) * 1994-09-20 1996-03-28 Nokia Mobile Phones Ltd. Simultaneous transmission of speech and data on a mobile communications system
WO1996009708A3 (en) * 1994-09-20 1996-07-25 Nokia Mobile Phones Ltd Simultaneous transmission of speech and data on a mobile communications system
US7336630B2 (en) 1994-09-20 2008-02-26 Spyder Navigations L.L.C. Simultaneous transmission of speech and data on a mobile communications system

Also Published As

Publication number Publication date
JPS5462706A (en) 1979-05-21
GB2006574A (en) 1979-05-02
SE7810581L (en) 1979-04-21
SE439564B (en) 1985-06-17
IT1091286B (en) 1985-07-06
GB2006574B (en) 1982-02-10
DE2845023A1 (en) 1979-05-03
DE2845023C2 (en) 1982-09-09
FR2406920B1 (en) 1982-04-16
JPS5821460B2 (en) 1983-04-30

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Legal Events

Date Code Title Description
ST Notification of lapse