IE831940L - Digital transmission - Google Patents

Digital transmission

Info

Publication number
IE831940L
IE831940L IE831940A IE194083A IE831940L IE 831940 L IE831940 L IE 831940L IE 831940 A IE831940 A IE 831940A IE 194083 A IE194083 A IE 194083A IE 831940 L IE831940 L IE 831940L
Authority
IE
Ireland
Prior art keywords
signals
bit rate
sync
mbit
multiplex signal
Prior art date
Application number
IE831940A
Other versions
IE54678B1 (en
Original Assignee
Ant Nachrichtentech
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 Ant Nachrichtentech filed Critical Ant Nachrichtentech
Publication of IE831940L publication Critical patent/IE831940L/en
Publication of IE54678B1 publication Critical patent/IE54678B1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/24—Systems for the transmission of television signals using pulse code modulation
    • H04N7/52—Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal
    • H04N7/54—Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal the signals being synchronous

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Color Television Systems (AREA)
  • Television Systems (AREA)

Abstract

1. System for the digital transmission of video and/or videotelephone signals at the bit rate of a PCM quaternary system of 139.264 Mbit/s pursuant to CCITT G 703.9, with the analog video or vidotelephone signal being digitally coded to a bit rate of 135 Mbit/s and a multiplexer (sync-mux) is provided at the transmitting end which bundles, in synchronism, the coded video or videotelephone signal whose bit rate has been brought, by means of the plugging technique, to a whole number multiple of 64 kbit/s, together with synchronizing signals (syn), signalling signals (sign) and additonal narrowband signals and possibly also with justification signals for said additional narrowband signals, each at the bit rate of 64 kbit/s or a whole number multiple thereof, into a multiplex signal at the bit rate of 139.264 Mbit/s and a demultiplexing device (sync-demux) is provided at the receiving end which breaks up the multiplex signal into the individual signals in a correspondingly reversed manner, characterized in that the multiplex signal formed by the multiplexer (sync-mux) and received by the demultiplexer (sync-demux) has a frame having 2176 time slots, with each time slot comprising 10 bits.
IE1940/83A 1982-08-20 1983-08-19 System for the digital transmission of video or picture telephone signals IE54678B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3230943A DE3230943A1 (en) 1982-08-20 1982-08-20 SYSTEM FOR DIGITAL TRANSMISSION OF VIDEO OR IMAGE TELEPHONE SIGNALS

Publications (2)

Publication Number Publication Date
IE831940L true IE831940L (en) 1984-02-20
IE54678B1 IE54678B1 (en) 1990-01-03

Family

ID=6171272

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1940/83A IE54678B1 (en) 1982-08-20 1983-08-19 System for the digital transmission of video or picture telephone signals

Country Status (5)

Country Link
EP (1) EP0103076B1 (en)
AT (1) ATE26514T1 (en)
DE (1) DE3230943A1 (en)
DK (1) DK161291C (en)
IE (1) IE54678B1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3436722A1 (en) * 1984-10-06 1986-04-17 ANT Nachrichtentechnik GmbH, 7150 Backnang System for broadband communication via optical fibres
DE3442883A1 (en) * 1984-11-24 1986-05-28 ANT Nachrichtentechnik GmbH, 7150 Backnang Integrated-services system for digital transmission of broadband and narrowband signals
FR2577736B1 (en) * 1985-02-15 1987-04-17 Telecommunications Sa SYNCHRONIZATION SYSTEM FOR DIGITAL TRANSMISSION EQUIPMENT
DE3509363A1 (en) * 1985-03-15 1986-09-18 Siemens AG, 1000 Berlin und 8000 München Time-division multiplex structure for digital, preferably optical subscriber lines
DE3525567A1 (en) * 1985-07-15 1987-05-07 Krone Ag MOTION IMAGE ENCODER WITH SELF-IDENTIFICATION OF THE STOP SIGN
DE3525696A1 (en) * 1985-07-18 1987-01-22 Siemens Ag TIME MULTIPLEX SYSTEM FOR TRANSMITTING VIDEO AND NARROW BAND SIGNALS
EP0210611B1 (en) * 1985-07-31 1989-12-13 Siemens Aktiengesellschaft Method for combining a digital picture signal and three digital narrow-band signals into one 139264-kbit/s signal
US5327126A (en) * 1992-06-26 1994-07-05 Hewlett-Packard Company Apparatus for and method of parallel justifying and dejustifying data in accordance with a predetermined mapping

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2252710B1 (en) * 1973-11-27 1978-09-29 France Etat
NL178642C (en) * 1974-09-13 1986-04-16 Nederlanden Staat DEVICE FOR TIME-DISTRIBUTION-FREE SWITCHING OF SYNCHRONOUS DATA CHANNELS.
DE3010702C2 (en) * 1980-03-20 1982-11-04 Standard Elektrik Lorenz Ag, 7000 Stuttgart Digital messaging system

Also Published As

Publication number Publication date
ATE26514T1 (en) 1987-04-15
DE3230943C2 (en) 1990-05-23
DK161291B (en) 1991-06-17
DE3230943A1 (en) 1984-02-23
DK380683D0 (en) 1983-08-19
DK380683A (en) 1984-02-21
IE54678B1 (en) 1990-01-03
EP0103076A1 (en) 1984-03-21
DK161291C (en) 1992-01-06
EP0103076B1 (en) 1987-04-08

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