JPS6351424B2 - - Google Patents

Info

Publication number
JPS6351424B2
JPS6351424B2 JP55145077A JP14507780A JPS6351424B2 JP S6351424 B2 JPS6351424 B2 JP S6351424B2 JP 55145077 A JP55145077 A JP 55145077A JP 14507780 A JP14507780 A JP 14507780A JP S6351424 B2 JPS6351424 B2 JP S6351424B2
Authority
JP
Japan
Prior art keywords
optical
converter
optical transmission
signal
integrator
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.)
Expired
Application number
JP55145077A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5769228A (en
Inventor
Fumihiko Takezoe
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.)
Fuji Electric Co Ltd
Fuji Facom Corp
Original Assignee
Fuji Electric Co Ltd
Fuji Facom Corp
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 Fuji Electric Co Ltd, Fuji Facom Corp filed Critical Fuji Electric Co Ltd
Priority to JP55145077A priority Critical patent/JPS5769228A/ja
Publication of JPS5769228A publication Critical patent/JPS5769228A/ja
Publication of JPS6351424B2 publication Critical patent/JPS6351424B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/33—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter being disposed at one fibre or waveguide end-face, and a light receiver at the other end-face
    • G01M11/332—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter being disposed at one fibre or waveguide end-face, and a light receiver at the other end-face using discrete input signals

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Dc Digital Transmission (AREA)
  • Optical Communication System (AREA)
JP55145077A 1980-10-18 1980-10-18 Deterioration detection system for optical transmitting circuit Granted JPS5769228A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55145077A JPS5769228A (en) 1980-10-18 1980-10-18 Deterioration detection system for optical transmitting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55145077A JPS5769228A (en) 1980-10-18 1980-10-18 Deterioration detection system for optical transmitting circuit

Publications (2)

Publication Number Publication Date
JPS5769228A JPS5769228A (en) 1982-04-27
JPS6351424B2 true JPS6351424B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1988-10-13

Family

ID=15376842

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55145077A Granted JPS5769228A (en) 1980-10-18 1980-10-18 Deterioration detection system for optical transmitting circuit

Country Status (1)

Country Link
JP (1) JPS5769228A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5860843A (ja) * 1981-10-06 1983-04-11 Natl Aerospace Lab 故障判断回路
JPS59104531A (ja) * 1982-12-07 1984-06-16 Tohoku Electric Power Co Inc 光フアイバケ−ブル破断予知装置
JPS59122031A (ja) * 1982-12-28 1984-07-14 Toshiba Corp 光伝送方式
US4828358A (en) * 1988-03-03 1989-05-09 American Telephone And Telegraph Company, At&T Bell Laboratories Testing in the manufacture, operation, and maintenance of optical device assemblies
JP4875196B2 (ja) * 2009-11-06 2012-02-15 株式会社東芝 障害予知ユニット
JP6660773B2 (ja) * 2016-03-04 2020-03-11 ルネサスエレクトロニクス株式会社 半導体装置、光源制御装置および光源制御システム

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5319886A (en) * 1976-08-08 1978-02-23 Nippon Soken Deterioration detecting apparatus for oxygen concentration detector
JPS5471502A (en) * 1977-11-18 1979-06-08 Fujitsu Ltd Alarm circuit for photo reception
JPS55110086A (en) * 1979-02-16 1980-08-25 Fujitsu Ltd Light output cut-off detecting system
US4276656A (en) * 1979-03-19 1981-06-30 Honeywell Information Systems Inc. Apparatus and method for replacement of a parallel, computer-to-peripheral wire link with a serial optical link

Also Published As

Publication number Publication date
JPS5769228A (en) 1982-04-27

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