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JPS51140407A - Light communication monitoring system - Google Patents

Light communication monitoring system

Info

Publication number
JPS51140407A
JPS51140407A JP6420775A JP6420775A JPS51140407A JP S51140407 A JPS51140407 A JP S51140407A JP 6420775 A JP6420775 A JP 6420775A JP 6420775 A JP6420775 A JP 6420775A JP S51140407 A JPS51140407 A JP S51140407A
Authority
JP
Japan
Prior art keywords
monitoring system
light communication
communication monitoring
monitor
effectively utilizing
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
JP6420775A
Other languages
Japanese (ja)
Inventor
Yoshiyuki Azuma
Yoshihisa Motomura
Koichi Oota
Akira Ashida
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.)
Hitachi Ltd
Tokyo Electric Power Co Holdings Inc
Original Assignee
Tokyo Electric Power Co Inc
Hitachi 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 Tokyo Electric Power Co Inc, Hitachi Ltd filed Critical Tokyo Electric Power Co Inc
Priority to JP6420775A priority Critical patent/JPS51140407A/en
Publication of JPS51140407A publication Critical patent/JPS51140407A/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)
  • Optical Communication System (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

PURPOSE:To monitor by effectively utilizing usable part of an obstruction channel.
JP6420775A 1975-05-30 1975-05-30 Light communication monitoring system Pending JPS51140407A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6420775A JPS51140407A (en) 1975-05-30 1975-05-30 Light communication monitoring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6420775A JPS51140407A (en) 1975-05-30 1975-05-30 Light communication monitoring system

Publications (1)

Publication Number Publication Date
JPS51140407A true JPS51140407A (en) 1976-12-03

Family

ID=13251391

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6420775A Pending JPS51140407A (en) 1975-05-30 1975-05-30 Light communication monitoring system

Country Status (1)

Country Link
JP (1) JPS51140407A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02170734A (en) * 1988-12-23 1990-07-02 Nec Corp Optical repeating system supervising system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4946311A (en) * 1972-09-04 1974-05-02

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4946311A (en) * 1972-09-04 1974-05-02

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02170734A (en) * 1988-12-23 1990-07-02 Nec Corp Optical repeating system supervising system

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