JPS57141150A - Parallel optical transmission system - Google Patents

Parallel optical transmission system

Info

Publication number
JPS57141150A
JPS57141150A JP56025406A JP2540681A JPS57141150A JP S57141150 A JPS57141150 A JP S57141150A JP 56025406 A JP56025406 A JP 56025406A JP 2540681 A JP2540681 A JP 2540681A JP S57141150 A JPS57141150 A JP S57141150A
Authority
JP
Japan
Prior art keywords
signal
parity
error
parallel
signals
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
JP56025406A
Other languages
Japanese (ja)
Inventor
Yotaro Shinkai
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP56025406A priority Critical patent/JPS57141150A/en
Publication of JPS57141150A publication Critical patent/JPS57141150A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Dc Digital Transmission (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To realize a parallel optical transmission system which does not require an auxiliary transmission line by monitoring an error of a parallel transmission line, fiber by fiber, independently by redundant binary codes and by making a reception-side parity check on transmitted signals except a parity signal. CONSTITUTION:A transmitting circuit 21 encodes and transmits parallel input signals to a trnsmission line together with an added parity signal. A decoding and error detecting circuit 24 decodes the parallel signals and also detects a code error in the transmitted signals to specify one optical fiber wherein the error occurs in process of the transmission, thereby outputting decoded parallel signals 25, a specifying signal 26 for the fault-occurring transmission line, an error detection signal 27, and a code 28 for the parity of the trnsmission side. A parity circuit 29 makes a reception-side parity check on all of the transmitted parallel signals 25 except the parity signal to output a parity code 29. A signal generator 31 inputs the codes 28 and 29 to output a correct signal 32 which corresponds to the error signal. An outputting circuit 33 substitutes the error signal by the signal 32 to output a correct signal 34.
JP56025406A 1981-02-25 1981-02-25 Parallel optical transmission system Pending JPS57141150A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56025406A JPS57141150A (en) 1981-02-25 1981-02-25 Parallel optical transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56025406A JPS57141150A (en) 1981-02-25 1981-02-25 Parallel optical transmission system

Publications (1)

Publication Number Publication Date
JPS57141150A true JPS57141150A (en) 1982-09-01

Family

ID=12165024

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56025406A Pending JPS57141150A (en) 1981-02-25 1981-02-25 Parallel optical transmission system

Country Status (1)

Country Link
JP (1) JPS57141150A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0642046A1 (en) * 1993-09-03 1995-03-08 Motorola, Inc. Intelligent opto-bus with display
US6081557A (en) * 1996-05-16 2000-06-27 Nec Corporation Datalink system and communication network

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0642046A1 (en) * 1993-09-03 1995-03-08 Motorola, Inc. Intelligent opto-bus with display
US6081557A (en) * 1996-05-16 2000-06-27 Nec Corporation Datalink system and communication network

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