JPH02117717U - - Google Patents
Info
- Publication number
- JPH02117717U JPH02117717U JP2547289U JP2547289U JPH02117717U JP H02117717 U JPH02117717 U JP H02117717U JP 2547289 U JP2547289 U JP 2547289U JP 2547289 U JP2547289 U JP 2547289U JP H02117717 U JPH02117717 U JP H02117717U
- Authority
- JP
- Japan
- Prior art keywords
- slide table
- output
- driving
- lens actuator
- optical disk
- 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
Links
- 230000003287 optical effect Effects 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Description
第１図は本考案に係わる光デイスクシステムの
一実施例を示す構成図、第２図は従来例を示す図
、第３図はスライドテーブル送りモータ制御電圧
とスライドテーブル移動速度を示す図である。
１０……光デイスク、１１……スピンドルモー
タ、１２……光ヘツド、１３……差動増幅器、１
４……スライドテーブル、１５……スライドテー
ブル送りモータ、１６……レンズアクチユエータ
駆動用サーボアンプ、１７……スライドテーブル
送りモータ駆動用サーボアンプ、１８……バイア
ス電圧発生回路、１９……加算増幅器、ＴＥ……
トラツキングエラー信号、ＶＬ……レンズアクチ
ユエータ制御電圧、ＶＭ，ＶＭ′……スライドテ
ーブル送りモータ制御電圧、ＶＢ……バイアス電
圧。
FIG. 1 is a block diagram showing an embodiment of an optical disk system according to the present invention, FIG. 2 is a diagram showing a conventional example, and FIG. 3 is a diagram showing slide table feed motor control voltage and slide table moving speed. . 10... Optical disk, 11... Spindle motor, 12... Optical head, 13... Differential amplifier, 1
4... Slide table, 15... Slide table feed motor, 16... Servo amplifier for driving lens actuator, 17... Servo amplifier for driving slide table feed motor, 18... Bias voltage generation circuit, 19... Addition Amplifier, TE...
Tracking error signal, VL...Lens actuator control voltage, VM, VM'...Slide table feed motor control voltage, VB...Bias voltage.
Claims (1)
の反射光を検出する光ヘツドで得られるトラツキ
ングエラー信号が与えられレンズアクチユエータ
駆動用サーボアンプを介して前記光ヘツドにレン
ズアクチユエータ制御電圧として与えると共にレ
ンズアクチユエータ駆動用サーボアンプの出力を
スライドテーブル送りモータ駆動用サーボアンプ
を介して前記スライドテーブルを移動させる様に
した光デイスクシステムのデータトラツク追従制
御装置において、 光スポツトのデータトラツク追従制御の目標と
なるデータトラツクの移動速度に相当する電圧で
あるバイアス電圧を発生するバイアス電圧発生回
路と、このバイアス電圧発生回路の出力電圧と前
記スライドテーブル送りモータ駆動用サーボアン
プの出力電圧を加算する加算増幅器を設け、この
加算増幅器の出力で前記スライドテーブルを移動
させる様にした事を特徴とする光デイスクシステ
ム。[Claims for Utility Model Registration] A tracking error signal obtained by an optical head placed on a slide table and detecting reflected light from an optical disk is applied to the optical head via a servo amplifier for driving a lens actuator. A data track tracking control device for an optical disk system, in which the output of a servo amplifier for driving a lens actuator is applied as a control voltage to a lens actuator, and the slide table is moved via a servo amplifier for driving a slide table feed motor. A bias voltage generation circuit that generates a bias voltage that is a voltage corresponding to the moving speed of the data track that is the target of the data track follow-up control of the optical spot, and an output voltage of the bias voltage generation circuit and the slide table feed motor drive. 1. An optical disk system comprising: a summing amplifier for adding up output voltages of servo amplifiers, and the slide table is moved by the output of the summing amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2547289U JPH02117717U (en) | 1989-03-06 | 1989-03-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2547289U JPH02117717U (en) | 1989-03-06 | 1989-03-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02117717U true JPH02117717U (en) | 1990-09-20 |
Family
ID=31246240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2547289U Pending JPH02117717U (en) | 1989-03-06 | 1989-03-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02117717U (en) |
-
1989
- 1989-03-06 JP JP2547289U patent/JPH02117717U/ja active Pending
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