JPS58125275U - disc playback device - Google Patents
disc playback deviceInfo
- Publication number
- JPS58125275U JPS58125275U JP1982022399U JP2239982U JPS58125275U JP S58125275 U JPS58125275 U JP S58125275U JP 1982022399 U JP1982022399 U JP 1982022399U JP 2239982 U JP2239982 U JP 2239982U JP S58125275 U JPS58125275 U JP S58125275U
- Authority
- JP
- Japan
- Prior art keywords
- output
- signal
- disk
- motor
- generates
- 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
- Rotational Drive Of Disk (AREA)
- Control Of Electric Motors In General (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
図は本考案に係るディスク再生装置の一例の要部を示す
ブロック図である。
図中、１はディスク、２はモータ、３は周波数発電機、
４はピックアップ手段、５は位置検出手段、９，２８は
ＦＩ■コンバータ、５１０，２９は電圧制御増幅回路、
１１はスイッチ、１２はモータ駆動回路、１３は基準信
号発生回路、１４は分周回路、１６．２５は位相比較回
路、１８はアンドゲート回路、１９はモノステ、−プル
・マルチバイブレータ、２１は電圧比較回路、２２はス
イッチ□駆動回路、２３は電圧制御増幅回路である。The figure is a block diagram showing essential parts of an example of a disc playback device according to the present invention. In the figure, 1 is a disk, 2 is a motor, 3 is a frequency generator,
4 is a pickup means, 5 is a position detection means, 9 and 28 are FI converters, 510 and 29 are voltage control amplifier circuits,
11 is a switch, 12 is a motor drive circuit, 13 is a reference signal generation circuit, 14 is a frequency divider circuit, 16.25 is a phase comparison circuit, 18 is an AND gate circuit, 19 is a monosteer, -pull multivibrator, 21 is a voltage 22 is a switch □ drive circuit, and 23 is a voltage control amplifier circuit.
Claims (1)
成されたディスクから、情報を読み出すピックアップ手
段の出力信号から得られる同期信号と、基準周波数を有
した信号とを比較して得られる出力に基づいて、上記デ
ィスクを回転させるモータに対する第１の制御信号を発
生する第１の回転制御部と、上記ディスクを回転させる
モータ、 の回転数に応じた周波数を有した信号と、
上記ピックアップ手段の上記ディスクの径方向位置に応
じた出力を発生する位置検出手段の出力とを比較して得
られる出力に基づいて、上記モータに対する第２の制御
信号を発生する第２の回転制御部と、上記第１の制御信
号と上記第２の制御信号を上記モータに選択的に供給す
るスイッチ及び該スイッチを上記ピックアップ手段の出
力信号の状況に応じて制御する切換え制御部とを備えて
なるディスク再生装置。An output obtained by comparing a synchronization signal obtained from an output signal of a pickup means for reading information from a disk on which a spiral recording track on which information is recorded at a constant density and a signal having a reference frequency. a first rotation control unit that generates a first control signal for a motor that rotates the disk based on the rotation speed of the motor that rotates the disk;
a second rotation control that generates a second control signal for the motor based on an output obtained by comparing the output of the pickup means with the output of a position detection means that generates an output according to the radial position of the disk; a switch that selectively supplies the first control signal and the second control signal to the motor, and a switching control section that controls the switch according to the status of the output signal of the pickup means. A disc playback device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982022399U JPS58125275U (en) | 1982-02-19 | 1982-02-19 | disc playback device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982022399U JPS58125275U (en) | 1982-02-19 | 1982-02-19 | disc playback device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58125275U true JPS58125275U (en) | 1983-08-25 |
Family
ID=30034484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1982022399U Pending JPS58125275U (en) | 1982-02-19 | 1982-02-19 | disc playback device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58125275U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6437764A (en) * | 1987-07-31 | 1989-02-08 | Sharp Kk | Optical disk recording and reproducing device |
| WO2001054121A1 (en) * | 2000-01-24 | 2001-07-26 | Matsushita Electric Industrial Co., Ltd. | Optical disk device, and method of controlling such optical disk device |
| WO2003003358A1 (en) * | 2001-06-29 | 2003-01-09 | Sony Corporation | Data recording medium, recording medium recording and/reproducing apparatus, and recording or reproducing method |
| WO2018194048A1 (en) * | 2017-04-18 | 2018-10-25 | 株式会社島津製作所 | Photodetector and photometric analysis device provided with same |
-
1982
- 1982-02-19 JP JP1982022399U patent/JPS58125275U/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6437764A (en) * | 1987-07-31 | 1989-02-08 | Sharp Kk | Optical disk recording and reproducing device |
| WO2001054121A1 (en) * | 2000-01-24 | 2001-07-26 | Matsushita Electric Industrial Co., Ltd. | Optical disk device, and method of controlling such optical disk device |
| WO2003003358A1 (en) * | 2001-06-29 | 2003-01-09 | Sony Corporation | Data recording medium, recording medium recording and/reproducing apparatus, and recording or reproducing method |
| WO2018194048A1 (en) * | 2017-04-18 | 2018-10-25 | 株式会社島津製作所 | Photodetector and photometric analysis device provided with same |
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