JPS58101359U - Recording body rotation control device in an information reproducing device - Google Patents
Recording body rotation control device in an information reproducing deviceInfo
- Publication number
- JPS58101359U JPS58101359U JP19841181U JP19841181U JPS58101359U JP S58101359 U JPS58101359 U JP S58101359U JP 19841181 U JP19841181 U JP 19841181U JP 19841181 U JP19841181 U JP 19841181U JP S58101359 U JPS58101359 U JP S58101359U
- Authority
- JP
- Japan
- Prior art keywords
- recording medium
- rotation control
- target value
- signal
- information reproducing
- 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
Landscapes
- Optical Recording Or Reproduction (AREA)
- Rotational Drive Of Disk (AREA)
- Control Of Velocity Or Acceleration (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
第１図は従来の情報再生装置における記録体の回転制御
装置の一例を示すブロック図、第２図はこの考案の一実
施例を示すブロック図、第３図は −第２図のシス
テムコントロール回路２９内の一部の詳細例を示すブロ
ック図、である。
１０・・・・・・ディスク、１１・・・・・・ターンテ
ーブル、１２・・・・・・ディスク回転モータ１．１３
・・・・・・レーザ管、１４・・・・・・ビームスプリ
ッタ、１５・・・・・・反射ミラー、１６・・・・・・
サーボミラー、１７・・・・・・トラッキングアクチュ
エータ、１８・・・・・・レーザヘッド、１９・・・・
・・フォーカスアクチュエータ、２０・・・・・・光検
出器、２１・・・・・・フィードモータ。Fig. 1 is a block diagram showing an example of a rotation control device for a recording medium in a conventional information reproducing device, Fig. 2 is a block diagram showing an embodiment of this invention, and Fig. 3 is a system control circuit shown in Fig. 2. 29 is a block diagram illustrating a detailed example of a part of 29. FIG. 10...disc, 11...turntable, 12...disk rotation motor 1.13
... Laser tube, 14 ... Beam splitter, 15 ... Reflection mirror, 16 ...
Servo mirror, 17... Tracking actuator, 18... Laser head, 19...
...Focus actuator, 20...Photodetector, 21...Feed motor.
Claims (1)
比較にもとづいて各再生位置における記録体の回転速度
の目標値を出力する第１手段と、再生位置の設定値にも
とづいて該再生位置における記録体の回転速度の目標値
を出力する第２手段と、前記第１手段から所期信号が得
られているときはその信号を目標値として記録体の回転
制御を行ない、所期信号が得られていないときは前記第
２手段からの信号を目標値として記録体の回転制御を行
なう回転制御手段とを具えた情報再生装置における記録
体の回転制御装置。a first means for outputting a target value of the rotational speed of the recording medium at each reproduction position based on a comparison between a reproduction clock reproduced from the reproduction signal and a reference clock; a second means for outputting a target value of the rotational speed of the recording medium; and when the desired signal is obtained from the first means, the rotation of the recording medium is controlled using the signal as the target value, and the rotation of the recording medium is controlled by using the signal as the target value, and if the desired signal is obtained. A rotation control device for a recording medium in an information reproducing apparatus, comprising: rotation control means for controlling the rotation of the recording medium using a signal from the second means as a target value when the second means is not available.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19841181U JPS58101359U (en) | 1981-12-25 | 1981-12-25 | Recording body rotation control device in an information reproducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19841181U JPS58101359U (en) | 1981-12-25 | 1981-12-25 | Recording body rotation control device in an information reproducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58101359U true JPS58101359U (en) | 1983-07-09 |
Family
ID=30111602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19841181U Pending JPS58101359U (en) | 1981-12-25 | 1981-12-25 | Recording body rotation control device in an information reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58101359U (en) |
-
1981
- 1981-12-25 JP JP19841181U patent/JPS58101359U/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH05128532A (en) | Cd-rom readout apparatus | |
| JPH076492A (en) | Data recording and reproducing device | |
| JPS58101359U (en) | Recording body rotation control device in an information reproducing device | |
| JPS6128112U (en) | Optical disk recording/playback device | |
| JPH0234089B2 (en) | MOKUHYOTORATSUKUICHIKENSAKUSOCHI | |
| JPS6136291B2 (en) | ||
| US5872753A (en) | Optical disk driving apparatus with tracking control | |
| JPH052828A (en) | Magnetic disk recording and reproducing device | |
| JPS6288170A (en) | Fast access device for compact disk | |
| JPH01109853U (en) | ||
| JP2830138B2 (en) | Digital data recording and / or playback device | |
| JPS5817667U (en) | Disc-shaped information recording medium reproducing device | |
| JPH04121840A (en) | Optical disk device | |
| JPH07161130A (en) | Multi-beam recording/reproducing apparatus | |
| JPH04281242A (en) | Optical magnetic recording device | |
| JPS60173130U (en) | Optical recording disc playback device | |
| JPS63211134A (en) | Optical recording and reproducing device | |
| JPS6070926U (en) | optical disc playback device | |
| JPS60173131U (en) | Optical recording disc playback device | |
| JPH03222126A (en) | Optical disk device | |
| JPS59187221U (en) | Automatic gain control circuit in disc playback device | |
| JPH05101565A (en) | Information signal recorder | |
| JPS63146369U (en) | ||
| JPS61144780A (en) | Compact disk player | |
| JPS6137167U (en) | Rotating disk tracking mechanism |