JPS58190840U - information reading device - Google Patents

information reading device

Info

Publication number
JPS58190840U
JPS58190840U JP8771782U JP8771782U JPS58190840U JP S58190840 U JPS58190840 U JP S58190840U JP 8771782 U JP8771782 U JP 8771782U JP 8771782 U JP8771782 U JP 8771782U JP S58190840 U JPS58190840 U JP S58190840U
Authority
JP
Japan
Prior art keywords
servo
actuator
reading device
signal
information reading
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
JP8771782U
Other languages
Japanese (ja)
Other versions
JPS6319943Y2 (en
Inventor
紺野　義清
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pioneer Corp
Original Assignee
Pioneer Corp
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 Pioneer Corp filed Critical Pioneer Corp
Priority to JP8771782U priority Critical patent/JPS58190840U/en
Publication of JPS58190840U publication Critical patent/JPS58190840U/en
Application granted granted Critical
Publication of JPS6319943Y2 publication Critical patent/JPS6319943Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Moving Of The Head To Find And Align With The Track (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (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 the drawing]

第１図は従来のトラッキングサーボ系のブロック図、第
２図は第１図のブロックの動作を示す図、第３図は本考
案の一実施例のブロック図、第４図は第３図のブロック
の動作を説明する図、第５図は本考案の他の実施例のブ
ロック図であるみ主要部分の符号の説明、１・・・・・
・トラッキングエラー信号発生器、３．２２・・・ルー
プスイッチ、５・・・・・・トラッキングミラー、１２
．２８・・・・・・蓄電素子。 ・ｔｄ凹ト ３　　　　　　　　　　　　　　　４ ノへFIG. 1 is a block diagram of a conventional tracking servo system, FIG. 2 is a diagram showing the operation of the blocks in FIG. 1, FIG. 3 is a block diagram of an embodiment of the present invention, and FIG. Figure 5 is a block diagram of another embodiment of the present invention, which explains the operation of the blocks. Explanation of the symbols of main parts, 1...
・Tracking error signal generator, 3.22... Loop switch, 5... Tracking mirror, 12
．． 28...Electricity storage element.・To td concave 3 4 ノ

Claims (4)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）ピックアップ情報検出点の位置を制御するサーボ
手段を有する情報読取装置であって、前記情報検出点の
位置移動をなすためのアクチュエータの所定位置から偏
倚量が所定範囲を越えた時に前記サーボ手段のサーボル
ープを断とする手段゛と、前記サーボループ断直前の前
記アクチュエータ駆動のための信号レベルから次第に減
′少するレベルの信号を発生する信号発生手段とを有し
、前記信号発生手段の信号を用いて前記サーボループ断
の間前記アクチュエータを駆動するようにした情報読取
装置。(1) An information reading device having servo means for controlling the position of a pick-up information detection point, wherein when the amount of deviation from a predetermined position of an actuator for moving the information detection point exceeds a predetermined range, the servo means for disconnecting the servo loop of the means; and signal generating means for generating a signal of a level gradually decreasing from the signal level for driving the actuator immediately before the servo loop was disconnected, the signal generating means An information reading device configured to drive the actuator while the servo loop is interrupted using the signal. （２）前記信号発生手段は前記サーボループ断直前の前
記アクチュエータ駆動のための信号を蓄える蓄電素子を
有し、この蓄電素子の放電信号を用いて前記アクチュエ
ータを駆動するようにしてなる実用新案登録請求の範囲
第１項記載の情報読取装置。(2) The signal generating means has a power storage element that stores a signal for driving the actuator immediately before the servo loop is disconnected, and the discharge signal of the power storage element is used to drive the actuator.Registration of a utility model. An information reading device according to claim 1. （３）　　前記サーボ手段は前記情報検出点としてのス
ポット光を記録トラックに対し略直交方向に移動制御す
るトラッキングサーボ装置であり、前記アクチュエータ
はトラッキングミラーを有してなる実用新案登録請求の
範囲第１項又は第２項記載の情報読取装置。(3) The servo means is a tracking servo device that controls the movement of the spot light serving as the information detection point in a direction substantially perpendicular to the recording track, and the actuator includes a tracking mirror. The information reading device according to item 1 or 2. （４）前記サーボ手段は前記情報検出点としてのスポッ
ト光を記録トラックの接線方向に移動制御するタンゼン
シャルサーボ装置であり、前記アクチュエータはタンゼ
ンシャルミラーを有してなる実用新案登録請求の範囲第
１項又は第２項記載の情報読取装置。(4) The servo means is a tangential servo device that controls the movement of the spot light serving as the information detection point in the tangential direction of the recording track, and the actuator includes a tangential mirror. The information reading device according to scope 1 or 2.
JP8771782U 1982-06-11 1982-06-11 information reading device Granted JPS58190840U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8771782U JPS58190840U (en) 1982-06-11 1982-06-11 information reading device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8771782U JPS58190840U (en) 1982-06-11 1982-06-11 information reading device

Publications (2)

Publication Number Publication Date
JPS58190840U true JPS58190840U (en) 1983-12-19
JPS6319943Y2 JPS6319943Y2 (en) 1988-06-03

Family

ID=30096416

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8771782U Granted JPS58190840U (en) 1982-06-11 1982-06-11 information reading device

Country Status (1)

Country Link
JP (1) JPS58190840U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61131240A (en) * 1984-11-30 1986-06-18 Teac Co Optical disk reproducing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61131240A (en) * 1984-11-30 1986-06-18 Teac Co Optical disk reproducing device

Also Published As

Publication number Publication date
JPS6319943Y2 (en) 1988-06-03

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