JPS60134347U - optical receiver - Google Patents

optical receiver

Info

Publication number
JPS60134347U
JPS60134347U JP1984022928U JP2292884U JPS60134347U JP S60134347 U JPS60134347 U JP S60134347U JP 1984022928 U JP1984022928 U JP 1984022928U JP 2292884 U JP2292884 U JP 2292884U JP S60134347 U JPS60134347 U JP S60134347U
Authority
JP
Japan
Prior art keywords
optical
light receiving
receiving element
circuit
electrical 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
JP1984022928U
Other languages
Japanese (ja)
Inventor
賢 大西
山口　伸英
遠藤　竹美
裕司 宮木
後藤　昌之
Original Assignee
富士通株式会社
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 富士通株式会社 filed Critical 富士通株式会社
Priority to JP1984022928U priority Critical patent/JPS60134347U/en
Publication of JPS60134347U publication Critical patent/JPS60134347U/en
Pending legal-status Critical Current

Links

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図は従来の光受信装置の構成を示す図、第２図は本
考案の一実施例を示す図である。１は光／電気変換素子
（受光素子）、４はタイミング抽出回路、７は増巾器、
８は比較器、Ｒ１−Ｒ１１は抵抗、Ｃ□〜Ｃ６はコンデ
ンサ、Ｄｌ、Ｄ２はダイオード、Ｑはトランジスタをそ
れぞれ示す。FIG. 1 is a diagram showing the configuration of a conventional optical receiver, and FIG. 2 is a diagram showing an embodiment of the present invention. 1 is an optical/electric conversion element (light receiving element), 4 is a timing extraction circuit, 7 is an amplifier,
8 is a comparator, R1 to R11 are resistors, C□ to C6 are capacitors, Dl and D2 are diodes, and Q is a transistor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 光入力の有無に応じた電気信号を発する受光素子と、該
受光素子の発する電気信号を増巾する増巾器を含み、受
光素子に入力された光信号より受信データを再生する光
受信回路と、該光受信回路と並列に接続され、該受光素
子の発する電気信号の信号レベルを検出する検出回路、
及び検出回路の検出する信号レベルに基いて光入力の断
を検出する回路とを備えた事を特徴とする光受信装置。an optical receiving circuit that includes a light receiving element that emits an electrical signal depending on the presence or absence of optical input, and an amplifier that amplifies the electrical signal that the light receiving element emits, and that reproduces received data from the optical signal input to the light receiving element; , a detection circuit connected in parallel with the optical receiving circuit and detecting the signal level of the electrical signal emitted by the light receiving element;
and a circuit for detecting disconnection of optical input based on the signal level detected by the detection circuit.
JP1984022928U 1984-02-20 1984-02-20 optical receiver Pending JPS60134347U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1984022928U JPS60134347U (en) 1984-02-20 1984-02-20 optical receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1984022928U JPS60134347U (en) 1984-02-20 1984-02-20 optical receiver

Publications (1)

Publication Number Publication Date
JPS60134347U true JPS60134347U (en) 1985-09-06

Family

ID=30515686

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1984022928U Pending JPS60134347U (en) 1984-02-20 1984-02-20 optical receiver

Country Status (1)

Country Link
JP (1) JPS60134347U (en)

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