JPS5595439A - Time-division photo signal transmission system - Google Patents

Time-division photo signal transmission system

Info

Publication number
JPS5595439A
JPS5595439A JP268679A JP268679A JPS5595439A JP S5595439 A JPS5595439 A JP S5595439A JP 268679 A JP268679 A JP 268679A JP 268679 A JP268679 A JP 268679A JP S5595439 A JPS5595439 A JP S5595439A
Authority
JP
Japan
Prior art keywords
central processor
data
pulses
reception
processing part
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
JP268679A
Other languages
Japanese (ja)
Inventor
Kenichi Yoshida
Norio Isshiki
Tetsuo Sugimoto
Yutaka Wada
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP268679A priority Critical patent/JPS5595439A/en
Publication of JPS5595439A publication Critical patent/JPS5595439A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)
  • Small-Scale Networks (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To simplify the constitutions of the reception parts of a central processor and terminal controllers by transmitting synchronizing pulses and clock pulse data via one time-division photo signal transmission line. CONSTITUTION:A central processor and several terminal controllers are connected in a loop and clock pulses from clock generating part CLK of the central processor are applied to data processing part PU; and processing part PU exercises control to send synchronizing pulses of wider width than that of clock pulses and control data controlling terminals from light emitting element 6 of transmission part S, and photo detecting element 7 of reception part R receives and applied data from terminals to processing part PU. Further, photo detecting element 7 of reception part R1 of a terminal receives control data from the central processor to extract clock pulses and synchronizing pulses and then applies them to data processing part PU1 together with control data for control over the terminal, thereby sending signals to reception part R of the central processor by way of light emitting element 16 of transmission part S1.
JP268679A 1979-01-12 1979-01-12 Time-division photo signal transmission system Pending JPS5595439A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP268679A JPS5595439A (en) 1979-01-12 1979-01-12 Time-division photo signal transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP268679A JPS5595439A (en) 1979-01-12 1979-01-12 Time-division photo signal transmission system

Publications (1)

Publication Number Publication Date
JPS5595439A true JPS5595439A (en) 1980-07-19

Family

ID=11536164

Family Applications (1)

Application Number Title Priority Date Filing Date
JP268679A Pending JPS5595439A (en) 1979-01-12 1979-01-12 Time-division photo signal transmission system

Country Status (1)

Country Link
JP (1) JPS5595439A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56149133A (en) * 1980-04-21 1981-11-18 Nec Corp Optical data link
JPS59216337A (en) * 1983-05-24 1984-12-06 Shin Meiwa Ind Co Ltd Remote control device using optical signal
JPS59195850U (en) * 1983-06-13 1984-12-26 日本電気株式会社 Optical communication data entry system
JPS61264835A (en) * 1985-05-17 1986-11-22 Kawamura Denki Sangyo Kk Optical fiber data link system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4835484U (en) * 1971-08-27 1973-04-27

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4835484U (en) * 1971-08-27 1973-04-27

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56149133A (en) * 1980-04-21 1981-11-18 Nec Corp Optical data link
JPS6341456B2 (en) * 1980-04-21 1988-08-17 Nippon Electric Co
JPS59216337A (en) * 1983-05-24 1984-12-06 Shin Meiwa Ind Co Ltd Remote control device using optical signal
JPS59195850U (en) * 1983-06-13 1984-12-26 日本電気株式会社 Optical communication data entry system
JPH0317494Y2 (en) * 1983-06-13 1991-04-12
JPS61264835A (en) * 1985-05-17 1986-11-22 Kawamura Denki Sangyo Kk Optical fiber data link system

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