JPS5925817U - AGC circuit in optical receiver - Google Patents

AGC circuit in optical receiver

Info

Publication number
JPS5925817U
JPS5925817U JP1982120579U JP12057982U JPS5925817U JP S5925817 U JPS5925817 U JP S5925817U JP 1982120579 U JP1982120579 U JP 1982120579U JP 12057982 U JP12057982 U JP 12057982U JP S5925817 U JPS5925817 U JP S5925817U
Authority
JP
Japan
Prior art keywords
agc circuit
optical receiver
light
circuit
transmitted light
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
JP1982120579U
Other languages
Japanese (ja)
Inventor
洋一 小倉
Original Assignee
株式会社東芝
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 株式会社東芝 filed Critical 株式会社東芝
Priority to JP1982120579U priority Critical patent/JPS5925817U/en
Publication of JPS5925817U publication Critical patent/JPS5925817U/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Amplification And Gain Control (AREA)
  • Amplifiers (AREA)
  • Optical Communication System (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の実施例のブロック図である。 ４・・・・・・アバランシェフォトダイオード、５・・
・・・・ＬＥＤ、　６・・・・・・電源。FIG. 1 is a block diagram of an embodiment of the present invention. 4... Avalanche photodiode, 5...
...LED, 6...Power supply.

Claims (3)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）光−電気変換された電気信号を、光受信器の出力
端子において、受光電力が変化しても一定振幅となるよ
うに制御するＡＧＣ回路中のアバランシェフォトダイオ
ードに、送信光と異なる光を与える素子を付設し、この
素子を動作させる回路を設けたことを特徴とする光受信
器におけるＡＧＣ回路。(1) At the output terminal of the optical receiver, an avalanche photodiode in the AGC circuit that controls the optical-to-electrical converted electrical signal so that it has a constant amplitude even if the received light power changes, is sent to an avalanche photodiode that is different from the transmitted light. What is claimed is: 1. An AGC circuit in an optical receiver, characterized in that an AGC circuit is provided with an element that provides the following: and a circuit that operates the element. （２）送信光と異なる光は、アバ２ンシエフオトダイオ
ードを作動させるのに十分であり、かつ、前記送信光に
対して十分少さい光強度を有すること゛を特徴とする実
用新案登録請求の範囲第１項記載の光受信器におけるＡ
ＧＣ回路。(2) A request for registration of a utility model characterized in that the light different from the transmitted light is sufficient to operate an aberration photodiode and has a light intensity sufficiently lower than that of the transmitted light. A in the optical receiver described in item 1.
GC circuit. （３）　　ＡＧＣ回路は定電流バイアス方式を採り、ア
バランシェフォトダイオードには送信光とは異なる直流
光が与えられることを特徴とする実用新案登録請求の範
囲第１項又は第２項記載の光受信器におけるＡＧＣ回路
。(3) The optical receiver according to claim 1 or 2, wherein the AGC circuit adopts a constant current bias method, and the avalanche photodiode is provided with DC light different from the transmitted light. AGC circuit in the device.
JP1982120579U 1982-08-10 1982-08-10 AGC circuit in optical receiver Pending JPS5925817U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1982120579U JPS5925817U (en) 1982-08-10 1982-08-10 AGC circuit in optical receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1982120579U JPS5925817U (en) 1982-08-10 1982-08-10 AGC circuit in optical receiver

Publications (1)

Publication Number Publication Date
JPS5925817U true JPS5925817U (en) 1984-02-17

Family

ID=30276303

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1982120579U Pending JPS5925817U (en) 1982-08-10 1982-08-10 AGC circuit in optical receiver

Country Status (1)

Country Link
JP (1) JPS5925817U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61105373U (en) * 1984-12-17 1986-07-04
JPS62205979A (en) * 1986-03-05 1987-09-10 株式会社日立ビルシステムサ−ビス Driving device in case of maintenance of cage

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61105373U (en) * 1984-12-17 1986-07-04
JPH0312784Y2 (en) * 1984-12-17 1991-03-26
JPS62205979A (en) * 1986-03-05 1987-09-10 株式会社日立ビルシステムサ−ビス Driving device in case of maintenance of cage
JPH055749B2 (en) * 1986-03-05 1993-01-25 Hitachi Elevator Eng & Service

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