JPH0346257U - - Google Patents

Info

Publication number
JPH0346257U
JPH0346257U JP10661289U JP10661289U JPH0346257U JP H0346257 U JPH0346257 U JP H0346257U JP 10661289 U JP10661289 U JP 10661289U JP 10661289 U JP10661289 U JP 10661289U JP H0346257 U JPH0346257 U JP H0346257U
Authority
JP
Japan
Prior art keywords
reference voltage
level
pulse modulation
modulation signal
light receiving
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.)
Granted
Application number
JP10661289U
Other languages
English (en)
Other versions
JP2520378Y2 (ja
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 filed Critical
Priority to JP1989106612U priority Critical patent/JP2520378Y2/ja
Publication of JPH0346257U publication Critical patent/JPH0346257U/ja
Application granted granted Critical
Publication of JP2520378Y2 publication Critical patent/JP2520378Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Manipulation Of Pulses (AREA)
  • Dc Digital Transmission (AREA)
  • Optical Communication System (AREA)

Description

【図面の簡単な説明】
第１図は本考案の原理構成を示すブロツク図、
第２図は本考案の一実施例を示す回路図、第３図
は本実施例の動作を説明するためのタイミングチ
ヤート、第４図は従来の受光回路を示す図、第５
図は従来の問題点を説明するためのタイミングチ
ヤートである。 図において、１……受光素子、２……コンパレ
ータ、３……基準電圧設定部、４……振幅制限部
。

Claims (1)

  1. 【実用新案登録請求の範囲】 受光素子１からのパルス変調信号Ｓｐと、基準
    電圧Ｖｒとを比較して２値化信号Ｓｂを生成する
    コンパレータ２と、 該２値化信号Ｓｂの平均レベルに追従して前記
    基準電圧Ｖｒを設定する基準電圧設定部３とを有
    する受光回路において、 前記平均レベルが前記パルス変調信号Ｓｐの最
    大レベルに近づいたときは、前記基準電圧Ｖｒを
    前記最大レベル近傍の値に固定し、前記平均レベ
    ルが前記パルス変調信号Ｓｐの最小レベルに近づ
    いたときには、前記基準電圧Ｖｒを前記最小レベ
    ル近傍の値に固定する振幅制限部４を、前記基準
    電圧設定部３の出力側に設けることを特徴とする
    受光回路。
JP1989106612U 1989-09-13 1989-09-13 受光回路 Expired - Lifetime JP2520378Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989106612U JP2520378Y2 (ja) 1989-09-13 1989-09-13 受光回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989106612U JP2520378Y2 (ja) 1989-09-13 1989-09-13 受光回路

Publications (2)

Publication Number Publication Date
JPH0346257U true JPH0346257U (ja) 1991-04-30
JP2520378Y2 JP2520378Y2 (ja) 1996-12-18

Family

ID=31655338

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989106612U Expired - Lifetime JP2520378Y2 (ja) 1989-09-13 1989-09-13 受光回路

Country Status (1)

Country Link
JP (1) JP2520378Y2 (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0265408A (ja) * 1988-08-31 1990-03-06 Sony Corp 波形整形回路

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0265408A (ja) * 1988-08-31 1990-03-06 Sony Corp 波形整形回路

Also Published As

Publication number Publication date
JP2520378Y2 (ja) 1996-12-18

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term