JPS5828310U - Recording medium rotation control circuit - Google Patents
Recording medium rotation control circuitInfo
- Publication number
- JPS5828310U JPS5828310U JP12257481U JP12257481U JPS5828310U JP S5828310 U JPS5828310 U JP S5828310U JP 12257481 U JP12257481 U JP 12257481U JP 12257481 U JP12257481 U JP 12257481U JP S5828310 U JPS5828310 U JP S5828310U
- Authority
- JP
- Japan
- Prior art keywords
- recording medium
- capacitor
- control circuit
- rotation control
- recording
- 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
- 239000003990 capacitor Substances 0.000 claims 4
- 238000007599 discharging Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- 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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第1図、第2図は従来の回路の構成図、第3図は本考案
の一例の構成図、第4図はその説明のため波形図である
。
3はポテンショメータ、7は周波数発電機、8はモータ
、20はピークホールド回路、21は減算回路である。1 and 2 are configuration diagrams of conventional circuits, FIG. 3 is a configuration diagram of an example of the present invention, and FIG. 4 is a waveform diagram for explaining the same. 3 is a potentiometer, 7 is a frequency generator, 8 is a motor, 20 is a peak hold circuit, and 21 is a subtraction circuit.
Claims (1)
、上記記録又は再生位置の回転半径に比例した電流を形
成する電流源と、この電流源からの電流を積分するコン
デンサと、上記記録媒体に関連して設けられた周波数発
電機からの信号により上記コンデンサを瞬時放電させる
回路と、上記コンデンサの端子電圧のピーク値を検出す
る回路とを有し、このピーク値が一定値となるように上
記記録媒体の回転を制御して上記記録又は再生位置にお
ける上記記録媒体の相対接線速度が一定となるようにし
た記録媒体の回転制御回路。When a recording medium is rotated to record or reproduce a signal, a current source that generates a current proportional to the radius of rotation of the recording or reproduction position, a capacitor that integrates the current from the current source, and the recording medium. A circuit for instantaneously discharging the capacitor by a signal from a frequency generator provided in connection with the capacitor, and a circuit for detecting the peak value of the terminal voltage of the capacitor, so that the peak value becomes a constant value. A rotation control circuit for a recording medium, which controls rotation of the recording medium so that a relative tangential velocity of the recording medium at the recording or reproducing position is constant.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12257481U JPS5828310U (en) | 1981-08-19 | 1981-08-19 | Recording medium rotation control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12257481U JPS5828310U (en) | 1981-08-19 | 1981-08-19 | Recording medium rotation control circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5828310U true JPS5828310U (en) | 1983-02-23 |
Family
ID=29916495
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12257481U Pending JPS5828310U (en) | 1981-08-19 | 1981-08-19 | Recording medium rotation control circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5828310U (en) |
-
1981
- 1981-08-19 JP JP12257481U patent/JPS5828310U/en active Pending
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