JPS5828310U - Recording medium rotation control circuit - Google Patents

Recording medium rotation control circuit

Info

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
Application number
JP12257481U
Other languages
Japanese (ja)
Inventor
忠雄 吉田
野中 千明
Original Assignee
ソニー株式会社
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 ソニー株式会社 filed Critical ソニー株式会社
Priority to JP12257481U priority Critical patent/JPS5828310U/en
Publication of JPS5828310U publication Critical patent/JPS5828310U/en
Pending legal-status Critical Current

Links

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

【図面の簡単な説明】[Brief explanation of the drawing]

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)

【実用新案登録請求の範囲】[Scope of utility model registration request] 記録媒体を回転させて信号の記録又は再生を行うに当り
、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.
JP12257481U 1981-08-19 1981-08-19 Recording medium rotation control circuit Pending JPS5828310U (en)

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)

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