JPS57125529A - Information transmission system in decentralized processing control system - Google Patents

Information transmission system in decentralized processing control system

Info

Publication number
JPS57125529A
JPS57125529A JP56012078A JP1207881A JPS57125529A JP S57125529 A JPS57125529 A JP S57125529A JP 56012078 A JP56012078 A JP 56012078A JP 1207881 A JP1207881 A JP 1207881A JP S57125529 A JPS57125529 A JP S57125529A
Authority
JP
Japan
Prior art keywords
line
data
switches
digital
transmit
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.)
Pending
Application number
JP56012078A
Other languages
Japanese (ja)
Inventor
Tadao Noguchi
Masaaki Sasaki
Yasuyuki Haneda
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.)
Nissin Electric Co Ltd
Original Assignee
Nissin Electric Co 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 Nissin Electric Co Ltd filed Critical Nissin Electric Co Ltd
Priority to JP56012078A priority Critical patent/JPS57125529A/en
Publication of JPS57125529A publication Critical patent/JPS57125529A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/74—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Computer And Data Communications (AREA)
  • Small-Scale Networks (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

PURPOSE:To transmit digital message data and video data with good efficiency, by using one of transmission lines as a digital line and another as an analog line also serving as the digital line respectively in double loop connection constitution. CONSTITUTION:Since photoelectric conversion section 1'b and electrooptic conversion section 2'b connected to a spare transmission line Lb are constituted with elements which can transmit analog signals and the sections are connected to a device 7 via video selector switches 8, 9, video data ID can be transmitted via the switches 8, 9. In moving pictures among the data, at a system normal state, switches 5, 8, 9 are controlled by using the fact that the line Lb is vacant and an analog base band signal can be transmitted. At system failure, since switches 3, 4, 5 are controlled for the line Lb to transmit a digital message data DD, the moving picture data is disconnected from a station ST. The moving picture data is digitally transmitted as still pictures through digital coding.
JP56012078A 1981-01-28 1981-01-28 Information transmission system in decentralized processing control system Pending JPS57125529A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56012078A JPS57125529A (en) 1981-01-28 1981-01-28 Information transmission system in decentralized processing control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56012078A JPS57125529A (en) 1981-01-28 1981-01-28 Information transmission system in decentralized processing control system

Publications (1)

Publication Number Publication Date
JPS57125529A true JPS57125529A (en) 1982-08-04

Family

ID=11795542

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56012078A Pending JPS57125529A (en) 1981-01-28 1981-01-28 Information transmission system in decentralized processing control system

Country Status (1)

Country Link
JP (1) JPS57125529A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5963880A (en) * 1982-10-05 1984-04-11 Canon Inc Picture processor
JPS5963881A (en) * 1982-10-05 1984-04-11 Canon Inc Picture processor
JPS6229247A (en) * 1985-07-29 1987-02-07 Nippon Soken Inc On-vehicle local area network

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5963880A (en) * 1982-10-05 1984-04-11 Canon Inc Picture processor
JPS5963881A (en) * 1982-10-05 1984-04-11 Canon Inc Picture processor
JPS6229247A (en) * 1985-07-29 1987-02-07 Nippon Soken Inc On-vehicle local area network

Similar Documents

Publication Publication Date Title
EP0291307A3 (en) Line interface
JPS5477013A (en) Transmission system for picture sound
ES8601598A1 (en) Switching system with separate supervisory links
DE3366548D1 (en) Broad-band communication system
FR2658371B3 (en) CIRCUIT ARRANGEMENT FOR PRODUCING A TORQUE SIGNAL WITH A REFERENCE SIGNAL, PARTICULARLY APPLICABLE TO DIGITAL VIDEO TECHNIQUE.
JPS57125529A (en) Information transmission system in decentralized processing control system
DE69006894D1 (en) Transmission system for digital video signals.
EP0198425A3 (en) Large bandwidth service-integrated information transmission system
EP0560122A3 (en) Communication system with stations along a bus
NO820893L (en) CLUTCH DEVICE FOR AA CONNECT TELEX PARTICIPATION STATIONS ASSOCIATED WITH A DATA PROCESSING PLANT, WITH TELETEX PARTICIPATING STATIONS ALSO LINKED TO DATA PROCESSING PLANT
ES8401815A1 (en) Method and arrangement for signaling the transmission mode of a communication system.
ZA805925B (en) Data transmission standards conversion
JPS57212867A (en) Facsimile simultaneous transmission system
JPS587120B2 (en) Remote concentrator control information transmission method
JPS5779787A (en) Spatial switch constituting system for digital exchanger
JPS56158570A (en) Facsimile dispatching broadcast communication system
CA2035391A1 (en) Call status recognition in a broadband private automatic branch exchange
JPS6457896A (en) Supervisory and control system
IT8220791A0 (en) VIDEO INTERCOM DEVICES WITH SENDING THE IMAGE TO COMMON TELEVISIONS, VIA CENTRALIZED ANTENNA SYSTEM.
JPS57135558A (en) Digital transmission system for subscriber line
JPS56132037A (en) Two-way time division multiple signal transmitting and receiving system
JPS611198A (en) Signal link control system of digital exchange
JPS5477008A (en) Service system for animation information
JPS52153329A (en) Signal transmission system
JPS52120709A (en) Common line signal system