JPS60166842U - capstan servo circuit - Google Patents
capstan servo circuitInfo
- Publication number
- JPS60166842U JPS60166842U JP5604284U JP5604284U JPS60166842U JP S60166842 U JPS60166842 U JP S60166842U JP 5604284 U JP5604284 U JP 5604284U JP 5604284 U JP5604284 U JP 5604284U JP S60166842 U JPS60166842 U JP S60166842U
- Authority
- JP
- Japan
- Prior art keywords
- capstan
- circuit
- servo circuit
- capstan servo
- rotational speed
- 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
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図は本考案実施例の回路ブロック図、第２図は要部
波形図、第３図は従来例の回路ブロック図である。
３・・・・・・キャプスタンモータ、４・・・・、、Ｆ
Ｇ信号ヘッド、６・・・・・・Ｆ−Ｖ変換回路、１０・
・・・・・分周回路、８・・・・・・台形波作成回路、
９・・・・・・サンプルホールド回路、１４・・・・・
・ゲートパルス作成回路、２０・・・・・・アンドゲー
ト、２１・・・・・・微分回路。FIG. 1 is a circuit block diagram of an embodiment of the present invention, FIG. 2 is a waveform diagram of main parts, and FIG. 3 is a circuit block diagram of a conventional example. 3...Capstan motor, 4...,,F
G signal head, 6...F-V conversion circuit, 10.
... Frequency dividing circuit, 8... Trapezoidal wave creation circuit,
9... Sample hold circuit, 14...
・Gate pulse generation circuit, 20...and gate, 21...differentiation circuit.
Claims (1)
ャプスタンの回転速度信号を検出する手段と、前記回転
速度信号に基づき前記キャプスタンモータの速度制御を
為す速度制御回路と、前記回転速度信号を分周する分周
回路と、該分周回路出力と基準信号との位相を比較し□
て、前記キャプスタンモータの位相制御を為す位相制御
回路とを備えるキャプスタンサーボ回路において、記録
開始に関連して前記基準信号を通すゲート手段と、該ゲ
ート手段出力に基づいて前記分周回路をリセットする一
リセットパルスを作成する手段とを備え２ることを特徴
とするキャプスタンサーボ回路。A capstan motor that drives a capstan, means for detecting a rotational speed signal of the capstan, a speed control circuit that controls the speed of the capstan motor based on the rotational speed signal, and a frequency division of the rotational speed signal. Compare the phase of the frequency divider circuit and the output of the frequency divider circuit with the reference signal □
In the capstan servo circuit, the capstan servo circuit includes a phase control circuit for controlling the phase of the capstan motor, and a gate means for passing the reference signal in connection with the start of recording, and a gate means for controlling the frequency dividing circuit based on the output of the gate means. 2. A capstan servo circuit comprising: 1) a means for generating a reset pulse; and 2) means for generating a reset pulse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5604284U JPS60166842U (en) | 1984-04-16 | 1984-04-16 | capstan servo circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5604284U JPS60166842U (en) | 1984-04-16 | 1984-04-16 | capstan servo circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60166842U true JPS60166842U (en) | 1985-11-06 |
Family
ID=30579273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5604284U Pending JPS60166842U (en) | 1984-04-16 | 1984-04-16 | capstan servo circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60166842U (en) |
-
1984
- 1984-04-16 JP JP5604284U patent/JPS60166842U/en active Pending
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