JPS6082727U - Servo circuit for optical pickup - Google Patents

Servo circuit for optical pickup

Info

Publication number
JPS6082727U
JPS6082727U JP17575883U JP17575883U JPS6082727U JP S6082727 U JPS6082727 U JP S6082727U JP 17575883 U JP17575883 U JP 17575883U JP 17575883 U JP17575883 U JP 17575883U JP S6082727 U JPS6082727 U JP S6082727U
Authority
JP
Japan
Prior art keywords
optical pickup
servo circuit
signal
outputs
limiter
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
JP17575883U
Other languages
Japanese (ja)
Other versions
JPH0337140Y2 (en
Inventor
萩田　宏之
Original Assignee
株式会社ケンウッド
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 株式会社ケンウッド filed Critical 株式会社ケンウッド
Priority to JP17575883U priority Critical patent/JPS6082727U/en
Publication of JPS6082727U publication Critical patent/JPS6082727U/en
Application granted granted Critical
Publication of JPH0337140Y2 publication Critical patent/JPH0337140Y2/ja
Granted legal-status Critical Current

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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図は従来例の光ピツクアップのサーボ系を示すブロ
ック図、第２図は本考案に係る光ピツクアップ用サーボ
回路の実施例を示す第１図に対応′　したブロック図、
第３図は第２図のリミッタと補償回路を併せた具体的回
路図、第４図は第２図の回路図中の信号のタイムチャー
トである。 ６４．６６・・・・・・ツェナーダイオード、６８・・
・・・・アナログスイッチ。FIG. 1 is a block diagram showing a conventional optical pickup servo system, and FIG. 2 is a block diagram corresponding to FIG. 1 showing an embodiment of the optical pickup servo circuit according to the present invention.
FIG. 3 is a specific circuit diagram combining the limiter and compensation circuit shown in FIG. 2, and FIG. 4 is a time chart of signals in the circuit diagram shown in FIG. 2. 64.66... Zener diode, 68...
...Analog switch.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 光ピツクアップの位置エラー信号を入力してエラー訂正
信号を出力する光ピツクアップ用サーボ回路において、
一定値以上のエラー信号レベルを規制するリミッタと、
光ピツクアップからのピット有無検出信号によりデータ
のドロップアウトを検出してリミッタ作動信号を出力す
るドロップアウト検出回路と、を有することを特徴とす
る光ピツクアップ用サーボ回路。In an optical pickup servo circuit that inputs an optical pickup position error signal and outputs an error correction signal,
a limiter that regulates the error signal level above a certain value;
A servo circuit for an optical pickup, comprising: a dropout detection circuit that detects data dropout using a pit presence/absence detection signal from an optical pickup and outputs a limiter activation signal.
JP17575883U 1983-11-14 1983-11-14 Servo circuit for optical pickup Granted JPS6082727U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17575883U JPS6082727U (en) 1983-11-14 1983-11-14 Servo circuit for optical pickup

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17575883U JPS6082727U (en) 1983-11-14 1983-11-14 Servo circuit for optical pickup

Publications (2)

Publication Number Publication Date
JPS6082727U true JPS6082727U (en) 1985-06-07
JPH0337140Y2 JPH0337140Y2 (en) 1991-08-06

Family

ID=30382290

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17575883U Granted JPS6082727U (en) 1983-11-14 1983-11-14 Servo circuit for optical pickup

Country Status (1)

Country Link
JP (1) JPS6082727U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5845666A (en) * 1981-09-07 1983-03-16 Sony Corp Servo circuit for disc reproducer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5845666A (en) * 1981-09-07 1983-03-16 Sony Corp Servo circuit for disc reproducer

Also Published As

Publication number Publication date
JPH0337140Y2 (en) 1991-08-06

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