JPS61156038U - - Google Patents
Info
- Publication number
- JPS61156038U JPS61156038U JP3841085U JP3841085U JPS61156038U JP S61156038 U JPS61156038 U JP S61156038U JP 3841085 U JP3841085 U JP 3841085U JP 3841085 U JP3841085 U JP 3841085U JP S61156038 U JPS61156038 U JP S61156038U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- rotating body
- rotating
- speed control
- head
- 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
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 1
Description
第１図は本考案一実施例の回路ブロツク図、第
２図は要部の回路ブロツク図、第３図は波形図、
第４図はガイドシリンダへのテープローデイング
を示す平面図である。
４……回転シリンダ、５，６……回転ヘツド、
７……ヘツドモータ、９……ＦＧ信号検出ヘツド
、１２……ｎてい倍回路、１３……切換スイツチ
、１４……速度制御回路。
Fig. 1 is a circuit block diagram of an embodiment of the present invention, Fig. 2 is a circuit block diagram of the main part, Fig. 3 is a waveform diagram,
FIG. 4 is a plan view showing tape loading onto the guide cylinder. 4... Rotating cylinder, 5, 6... Rotating head,
7...Head motor, 9...FG signal detection head, 12...n multiplier circuit, 13...changeover switch, 14...speed control circuit.
Claims (1)
回転速度に反比例する周期を持つたＦＧ信号の検
出手段と、前記回転体の駆動手段と、前記ＦＧ信
号の周期に基づいて前記駆動手段の速度制御信号
を作成する速度制御回路と、前記回転ヘツドに巻
付けられた磁気テープの走行停止時に前記回転体
の回転速度を低下せしめる低下手段とよりなる回
転ヘツド装置。 (2) 前記低下手段は、前記ＦＧ信号のｎてい倍
回路と、該ｎてい倍回路出力又は前記ＦＧ信号を
選択的に前記速度制御回路に供給する選択手段と
よりなる実用新案登録請求の範囲第１項記載の回
転ヘツド装置。[Claims for Utility Model Registration] (1) A rotating body having a rotating head, means for detecting an FG signal having a period inversely proportional to the rotational speed of the rotating body, means for driving the rotating body, and the FG signal. a rotating head comprising: a speed control circuit that creates a speed control signal for the driving means based on a cycle of the rotating body; and a reducing means that reduces the rotational speed of the rotating body when the magnetic tape wound around the rotating head stops running. Device. (2) The scope of the utility model registration claim, wherein the lowering means comprises an n-multiplying circuit for the FG signal, and a selection means for selectively supplying the output of the n-multiplying circuit or the FG signal to the speed control circuit. The rotary head device according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3841085U JPS61156038U (en) | 1985-03-18 | 1985-03-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3841085U JPS61156038U (en) | 1985-03-18 | 1985-03-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61156038U true JPS61156038U (en) | 1986-09-27 |
Family
ID=30545392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3841085U Pending JPS61156038U (en) | 1985-03-18 | 1985-03-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61156038U (en) |
-
1985
- 1985-03-18 JP JP3841085U patent/JPS61156038U/ja active Pending