JPS60726U - Tape speed control circuit - Google Patents
Tape speed control circuitInfo
- Publication number
- JPS60726U JPS60726U JP9059983U JP9059983U JPS60726U JP S60726 U JPS60726 U JP S60726U JP 9059983 U JP9059983 U JP 9059983U JP 9059983 U JP9059983 U JP 9059983U JP S60726 U JPS60726 U JP S60726U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- converter
- control circuit
- frequency
- 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
Landscapes
- Control Of Direct Current Motors (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
第１図は本考案回路を適用し得るヘリカルスキャン型磁
気記録再生装置のテープ走行系の一例を示す概略平面図
、第２図は本考案回路の一実施例を示す回路系統図、第
３薗は本考案回路に使用されるＦ−Ｖコンバータの周波
数−電圧変換特性の一例を示す図である。
１・・・・・・カセット、３・・・・・・磁気テープ、
８・・・・・・回転ドラム、１２・・・・・・オーディ
オ及びコントロールヘッド、１３・・・・・・ピンチロ
ーラ、１４・・・・・・キャプスタン、１６・・・・・
・リールモータ、１８・・・・・・アイドラ、１９・・
・・・・巻取りリール台、２０・・・・・・供給リール
台、２１・・・・・・周波数発電機（ＦＧ）、２２．
２４・・・・・・Ｆ−Ｖコンバータ、２３・・・・・・
再生コントロールパルス入力端子。FIG. 1 is a schematic plan view showing an example of a tape running system of a helical scan type magnetic recording/reproducing device to which the circuit of the present invention can be applied; FIG. 2 is a circuit diagram showing an embodiment of the circuit of the present invention; FIG. 2 is a diagram showing an example of the frequency-voltage conversion characteristics of the F-V converter used in the circuit of the present invention. 1...Cassette, 3...Magnetic tape,
8... Rotating drum, 12... Audio and control head, 13... Pinch roller, 14... Capstan, 16...
・Reel motor, 18...Idler, 19...
...Take-up reel stand, 20... Supply reel stand, 21... Frequency generator (FG), 22.
24...F-V converter, 23...
Playback control pulse input terminal.
Claims (1)
しめられる磁気テープから、コントロールパルスが一定
周期で再生されるように、上記リールを回転するモータ
の駆動電圧を制御することにより上記磁気テープの走行
速度を実質的に制御するテープ速度制御回路であって、
上記再生コントロールパルス又はこれと一定周波数比関
係にある信号が供給される第１のＦ−Ｖコンバータと、
上記モータの回転速度に応じた周期の回転検出信号を得
る回転検出手段と、該第１のＦ−Ｖコンバータの出力電
圧によって周波数−電圧変換特性の中心周波数が可変せ
しめられると共に、該回転検出信号が供給されてこれを
周波数−電圧変換して得た電圧を該モータへ駆動電圧と
して出力する第２のＦ−Ｖコンバータとより構成したテ
ープ速度制御回路。The drive voltage of the motor that rotates the reel is controlled so that control pulses are reproduced at a constant cycle from the magnetic tape, which is caused to run at a higher speed than during normal playback by the rotational force of the reel. A tape speed control circuit that substantially controls the speed,
a first F-V converter to which the regeneration control pulse or a signal having a constant frequency ratio relationship therewith is supplied;
a rotation detection means for obtaining a rotation detection signal with a period corresponding to the rotation speed of the motor; a center frequency of the frequency-voltage conversion characteristic is varied by the output voltage of the first F-V converter; A tape speed control circuit comprising a second F-V converter which converts the frequency-to-voltage of the supplied F-V converter and outputs the obtained voltage as a driving voltage to the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9059983U JPS60726U (en) | 1983-06-13 | 1983-06-13 | Tape speed control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9059983U JPS60726U (en) | 1983-06-13 | 1983-06-13 | Tape speed control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60726U true JPS60726U (en) | 1985-01-07 |
Family
ID=30220535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9059983U Pending JPS60726U (en) | 1983-06-13 | 1983-06-13 | Tape speed control circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60726U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5965959A (en) * | 1982-10-05 | 1984-04-14 | Matsushita Electric Ind Co Ltd | Tape driving device of magnetic picture recording and reproducing device |
-
1983
- 1983-06-13 JP JP9059983U patent/JPS60726U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5965959A (en) * | 1982-10-05 | 1984-04-14 | Matsushita Electric Ind Co Ltd | Tape driving device of magnetic picture recording and reproducing device |
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