JPS58101346U - Magnetic tape speed control circuit - Google Patents
Magnetic tape speed control circuitInfo
- Publication number
- JPS58101346U JPS58101346U JP19774981U JP19774981U JPS58101346U JP S58101346 U JPS58101346 U JP S58101346U JP 19774981 U JP19774981 U JP 19774981U JP 19774981 U JP19774981 U JP 19774981U JP S58101346 U JPS58101346 U JP S58101346U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic tape
- speed control
- control circuit
- tape speed
- 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
Landscapes
- Control Of Multiple 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図は従来の磁気テープ速度制御回路を示す図、第２
図は本考案の一実施例を示す図、第３図及び第４図はそ
れぞれ早送りと巻戻し時における第２図主要部の波形図
、第５図は本考案の特性を示す図、
図で、６・・・・・・４００Ｈ２の発振器、７・・・・
・・ｌ／Ｎの分周器、８・・・・・・三角波発生器、９
・・・・・・コンパレーター、１０・・・・・・ボリウ
ム、１１・・・・・・タイマーローラ、１２・・・・・
・磁気記録再生装置のシステムコントロール、１３・・
・・・・論理回路、１４・・・・・・サプライリールモ
ーター、１５・・・・・・ティクアップ・リールモータ
ー、１６・・・・・・サプライリールモーター駆動用ト
ランジスタ、１７・・・・・・ティクアップリールモー
ター駆動用トランジスタ、１８．１９・・・・・・マル
チバイブレータ。Figure 1 shows a conventional magnetic tape speed control circuit; Figure 2 shows a conventional magnetic tape speed control circuit;
The figure shows an embodiment of the present invention, Figures 3 and 4 are waveform diagrams of the main part of Figure 2 during fast forwarding and rewinding, respectively, and Figure 5 is a diagram showing the characteristics of the present invention. , 6...400H2 oscillator, 7...
...L/N frequency divider, 8...Triangle wave generator, 9
...Comparator, 10...Volume, 11...Timer roller, 12...
・System control of magnetic recording and reproducing equipment, 13...
...Logic circuit, 14... Supply reel motor, 15... Tick-up reel motor, 16... Supply reel motor driving transistor, 17... ...Tick-up reel motor drive transistor, 18.19...Multi-vibrator.
Claims (1)
なるレベルをそれぞれ磁気テープの早送り速度と巻き戻
し速度に対応させて速度制御を行うとき、前記−周期間
の互いに異なるレベルのデユーティを可変する可変手段
と、磁気テープの走行に応じて磁気テープ上のフィール
ドごとに発生するタイマーパルスを前記可変手段からの
出力に挿入する挿入手段とを具備し、前記挿入手段の出
力に応じて磁気テープ速度を制御することを特徴とする
磁気テープ速度制御回路。variable means for varying the duty of the different levels between the periods when speed control is performed by making the different levels during one cycle correspond to the fast forwarding speed and the rewinding speed of the magnetic tape, each having a predetermined frequency; and an insertion means for inserting into the output from the variable means a timer pulse generated for each field on the magnetic tape as the magnetic tape runs, and controlling the magnetic tape speed according to the output of the insertion means. A magnetic tape speed control circuit characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19774981U JPS58101346U (en) | 1981-12-25 | 1981-12-25 | Magnetic tape speed control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19774981U JPS58101346U (en) | 1981-12-25 | 1981-12-25 | Magnetic tape speed control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58101346U true JPS58101346U (en) | 1983-07-09 |
Family
ID=30110961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19774981U Pending JPS58101346U (en) | 1981-12-25 | 1981-12-25 | Magnetic tape speed control circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58101346U (en) |
-
1981
- 1981-12-25 JP JP19774981U patent/JPS58101346U/en active Pending
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