JPS5887165U - Tape constant speed control device - Google Patents
Tape constant speed control deviceInfo
- Publication number
- JPS5887165U JPS5887165U JP18394081U JP18394081U JPS5887165U JP S5887165 U JPS5887165 U JP S5887165U JP 18394081 U JP18394081 U JP 18394081U JP 18394081 U JP18394081 U JP 18394081U JP S5887165 U JPS5887165 U JP S5887165U
- Authority
- JP
- Japan
- Prior art keywords
- capstan
- constant speed
- signal
- control device
- drive motor
- 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図はビデオテープレコーダに於ける磁気テープの駆
動系の一例の構成を示す平面図、第２図はビデオテープ
レコーダに於ける磁気テープの走行系の一例の構成を示
す平面図、第３図はこの考案に係るテープ定速制御装置
の一実施例の一部を説明する為の平面図、第４図は同じ
く回路部分を説明する為の回路図、第５図ａ、 ｂ、
ｃは第４図の動作説明に供する各部の信号波形図で
ある。
１１・・・・・・キャプスタン駆動モータ、１２・・・
・・・モータプーリ、１３・・・・・・伝達ベルト、１
４・・・・・・キャプスタンフライホイール、１５・・
・・・・キャプスタン、１６・・・・・・ピンチローラ
、１７・・・・・・磁気テープ、２５３・・・・・・第
１のコントロールヘラ）’、２５４・・・・・・第２の
コントロールヘッド、３２・・曲フリップフロップ、３
３・・曲単安定マルチバイブレーク、３４・・・・・・
切換スイッチ、３５・・曲位相比較回路、３６・・・・
・・増幅回路、３７・・・・・・モータ駆動回路。FIG. 1 is a plan view showing the structure of an example of a magnetic tape drive system in a video tape recorder, FIG. 2 is a plan view showing the structure of an example of a magnetic tape running system in a video tape recorder, and FIG. The figure is a plan view for explaining a part of an embodiment of the tape constant speed control device according to this invention, FIG. 4 is a circuit diagram for explaining the circuit portion, and FIGS. 5 a, b,
c is a signal waveform diagram of each part used to explain the operation of FIG. 4; 11... Capstan drive motor, 12...
...Motor pulley, 13...Transmission belt, 1
4... Capstan flywheel, 15...
...capstan, 16...pinch roller, 17...magnetic tape, 253...first control spatula)', 254... 2 control head, 32... tune flip-flop, 3
3...Tune monostable multi-bi break, 34...
Selector switch, 35... Song phase comparison circuit, 36...
...Amplification circuit, 37...Motor drive circuit.
Claims (1)
ンと、このキャプスタンを回転駆動する為のキャプスタ
ン駆動モータと、このキャプスタン駆動モータの回転力
を前記キャプスタンに伝達する伝達手段と、記録時前記
磁気テープに垂直同期信号に同期した信号を映像トラッ
クの指標となるコントロール信号として記録する第１の
コントロールヘッドと、記録時この第１のコントロール
ヘッドによって記録されたコントロール信号を検出する
第２のコントロールヘッドと、この第２のコントロール
ヘッドの検出信号と基準信号との位相比較を行う位相比
較回路と、この位相比較回路の出力信号を用いて前記キ
ャプスタン駆動モータの回転を制御するモータ駆動回路
とを具備したテープ定速制御装置。 第１図[Claims for Utility Model Registration] A capstan for running a magnetic tape at a constant speed during recording, a capstan drive motor for rotationally driving the capstan, and a capstan that transfers the rotational force of the capstan drive motor to the capstan. a first control head for recording a signal synchronized with a vertical synchronization signal on the magnetic tape as a control signal serving as an index of a video track during recording; a second control head that detects the detected control signal; a phase comparison circuit that performs a phase comparison between the detection signal of the second control head and a reference signal; A tape constant speed control device comprising a motor drive circuit that controls the rotation of a drive motor. Figure 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18394081U JPS5887165U (en) | 1981-12-10 | 1981-12-10 | Tape constant speed control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18394081U JPS5887165U (en) | 1981-12-10 | 1981-12-10 | Tape constant speed control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5887165U true JPS5887165U (en) | 1983-06-13 |
Family
ID=29983649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18394081U Pending JPS5887165U (en) | 1981-12-10 | 1981-12-10 | Tape constant speed control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5887165U (en) |
-
1981
- 1981-12-10 JP JP18394081U patent/JPS5887165U/en active Pending
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