JPS61195523U - - Google Patents

Info

Publication number
JPS61195523U
JPS61195523U JP8024385U JP8024385U JPS61195523U JP S61195523 U JPS61195523 U JP S61195523U JP 8024385 U JP8024385 U JP 8024385U JP 8024385 U JP8024385 U JP 8024385U JP S61195523 U JPS61195523 U JP S61195523U
Authority
JP
Japan
Prior art keywords
signal
detecting
movement
lens system
push
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
JP8024385U
Other languages
Japanese (ja)
Other versions
JPH0614255Y2 (en
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 JP1985080243U priority Critical patent/JPH0614255Y2/en
Publication of JPS61195523U publication Critical patent/JPS61195523U/ja
Application granted granted Critical
Publication of JPH0614255Y2 publication Critical patent/JPH0614255Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Optical Recording Or Reproduction (AREA)

Description

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

第１図は本考案の検出部の系統図、第２図は第
１図の波形説明図、第３図はサーボ等の系統図、
第４図は従来のトラツクエラ検出系の系統図であ
る。 図に於て、１はトラツクエラ検出手段、２はト
ラツキングアクチユエータ、３はスライドモータ
、４は誤差増幅器、５，６はアンプ、７，９，１
０はデテクタ、８，１２，１３は加算アンプ、１
１，１５は差動アンプを夫々示す。 Fig. 1 is a system diagram of the detection section of the present invention, Fig. 2 is a waveform explanatory diagram of Fig. 1, and Fig. 3 is a system diagram of servos, etc.
FIG. 4 is a system diagram of a conventional track error detection system. In the figure, 1 is a tracking error detection means, 2 is a tracking actuator, 3 is a slide motor, 4 is an error amplifier, 5, 6 are amplifiers, 7, 9, 1
0 is a detector, 8, 12, 13 are addition amplifiers, 1
1 and 15 indicate differential amplifiers, respectively.

Claims (1)

【実用新案登録請求の範囲】 １ デイスクで反射された光信号を該デイスクの
トラツク方向に分割された検出手段により受けて
得たプツシユプル信号の直流ずれを検出してレン
ズ系の移動を検出してなることを特徴とする光デ
イスク装置。 ２ 上記レンズ系の移動検出をトラツクエラ信号
とプツシユプル信号との差信号によつて検出して
なることを特徴とする実用新案登録請求の範囲第
１項記載の光デイスク装置。[Claims for Utility Model Registration] 1. Detecting the movement of the lens system by detecting the DC deviation of the push-pull signal obtained by receiving the optical signal reflected by the disk by a detection means divided in the track direction of the disk. An optical disk device characterized by: 2. The optical disk device according to claim 1, wherein the movement of the lens system is detected by a difference signal between a track error signal and a push pull signal.
JP1985080243U 1985-05-29 1985-05-29 Optical disk device Expired - Lifetime JPH0614255Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985080243U JPH0614255Y2 (en) 1985-05-29 1985-05-29 Optical disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985080243U JPH0614255Y2 (en) 1985-05-29 1985-05-29 Optical disk device

Publications (2)

Publication Number Publication Date
JPS61195523U true JPS61195523U (en) 1986-12-05
JPH0614255Y2 JPH0614255Y2 (en) 1994-04-13

Family

ID=30625911

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985080243U Expired - Lifetime JPH0614255Y2 (en) 1985-05-29 1985-05-29 Optical disk device

Country Status (1)

Country Link
JP (1) JPH0614255Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002019325A1 (en) * 2000-08-28 2002-03-07 Matsushita Electric Industrial Co., Ltd. Method and device for detecting positional deviation of lens in optical disk unit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58169349A (en) * 1982-03-31 1983-10-05 Hitachi Ltd Optical spot controller

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58169349A (en) * 1982-03-31 1983-10-05 Hitachi Ltd Optical spot controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002019325A1 (en) * 2000-08-28 2002-03-07 Matsushita Electric Industrial Co., Ltd. Method and device for detecting positional deviation of lens in optical disk unit

Also Published As

Publication number Publication date
JPH0614255Y2 (en) 1994-04-13

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