JPS6057247U - Light receiving circuit for optical cable link - Google Patents

Light receiving circuit for optical cable link

Info

Publication number
JPS6057247U
JPS6057247U JP1983148651U JP14865183U JPS6057247U JP S6057247 U JPS6057247 U JP S6057247U JP 1983148651 U JP1983148651 U JP 1983148651U JP 14865183 U JP14865183 U JP 14865183U JP S6057247 U JPS6057247 U JP S6057247U
Authority
JP
Japan
Prior art keywords
optical cable
light receiving
receiving circuit
cable link
output signal
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
JP1983148651U
Other languages
Japanese (ja)
Inventor
片山　泰臣
Original Assignee
日本電気ホームエレクトロニクス株式会社
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 日本電気ホームエレクトロニクス株式会社 filed Critical 日本電気ホームエレクトロニクス株式会社
Priority to JP1983148651U priority Critical patent/JPS6057247U/en
Publication of JPS6057247U publication Critical patent/JPS6057247U/en
Pending legal-status Critical Current

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  • Dc Digital Transmission (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図は従来の光ケーブルリンク用受光回路の一例を示
す回路図、第２図は本考案による光ケーブルリンク用受
光回路の一実施例を示す回路図、第３図ａ、　ｂおよび
第４図ａ、　ｂは第２図に示す回路の動作を示す各部動
作波形図である。 １・・・フォトトランジスタ、２，９．１０・・・抵抗
、３・・・コンパレータ、６・・・負ピークホールド回
路、７・・・ダイオード、８・・・コンデンサ。Fig. 1 is a circuit diagram showing an example of a conventional light receiving circuit for an optical cable link, Fig. 2 is a circuit diagram showing an embodiment of a light receiving circuit for an optical cable link according to the present invention, Figs. 3a, b, and 4a. , b are operation waveform diagrams of each part showing the operation of the circuit shown in FIG. 2. 1... Phototransistor, 2,9.10... Resistor, 3... Comparator, 6... Negative peak hold circuit, 7... Diode, 8... Capacitor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 光ケーブルを介して送られて来る光信号受光するフォト
トランジスタと、このフォトトランジスタから送出され
る受光出力信号を入力として“Ｌ”レベルをホールドす
るとともにホールド値を分圧して出力する負ピークホー
ルド回路と、この負ピークホールド回路の出力信号を基
準値として前記受光出力信号を比較することにより受信
信号を送出するコンパレータとを備えたことを特徴とす
る光ケーブルリンク用受光回路。A phototransistor that receives an optical signal sent through an optical cable, and a negative peak hold circuit that receives the received light output signal sent from the phototransistor as input, holds the "L" level, and divides and outputs the hold value. , and a comparator that transmits a received signal by comparing the received light output signal using the output signal of the negative peak hold circuit as a reference value.
JP1983148651U 1983-09-26 1983-09-26 Light receiving circuit for optical cable link Pending JPS6057247U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1983148651U JPS6057247U (en) 1983-09-26 1983-09-26 Light receiving circuit for optical cable link

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1983148651U JPS6057247U (en) 1983-09-26 1983-09-26 Light receiving circuit for optical cable link

Publications (1)

Publication Number Publication Date
JPS6057247U true JPS6057247U (en) 1985-04-22

Family

ID=30330204

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1983148651U Pending JPS6057247U (en) 1983-09-26 1983-09-26 Light receiving circuit for optical cable link

Country Status (1)

Country Link
JP (1) JPS6057247U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58114637A (en) * 1981-12-28 1983-07-08 Toshiba Corp Optical pulse receiver

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58114637A (en) * 1981-12-28 1983-07-08 Toshiba Corp Optical pulse receiver

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