JPH01162138U - - Google Patents
Info
- Publication number
- JPH01162138U JPH01162138U JP5832188U JP5832188U JPH01162138U JP H01162138 U JPH01162138 U JP H01162138U JP 5832188 U JP5832188 U JP 5832188U JP 5832188 U JP5832188 U JP 5832188U JP H01162138 U JPH01162138 U JP H01162138U
- Authority
- JP
- Japan
- Prior art keywords
- reel
- tape
- tape running
- running speed
- take
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Control Of Multiple Motors (AREA)
Description
第１図は本考案の原理ブロツク図、第２図は本
考案の一実施例のブロツク図、第３図はリール駆
動機構及びテープ走行路の一例を示す概略図、第
４図は第２図の動作説明用フローチヤート、第５
図は第２図におけるモータ駆動電圧とテープ巻径
との関係の一例を示す図である。
１……供給リール、２……巻取りリール、３…
…磁気テープ、４……検出手段、５……算出手段
、６……補正量生成手段、７……駆動信号生成手
段、９，１０……回転検出器、１１……マイクロ
コンピユータ。
Fig. 1 is a block diagram of the principle of the present invention, Fig. 2 is a block diagram of an embodiment of the invention, Fig. 3 is a schematic diagram showing an example of the reel drive mechanism and tape running path, and Fig. 4 is the same as Fig. 2. Flowchart for explaining the operation, 5th
The figure is a diagram showing an example of the relationship between the motor drive voltage and the tape winding diameter in FIG. 2. 1... Supply reel, 2... Take-up reel, 3...
. . . magnetic tape, 4 . . . detection means, 5 . . . calculation means, 6 . . . correction amount generation means, 7 .
Claims (1)
取られる磁気テープを記録時よりも高速で走行す
るテープ走行時に、テープ走行用モータへの駆動
信号を制御することにより、テープ走行速度を制
御するテープ走行速度制御回路において、 上記供給リールと上記巻取りリールの単位時間
当りの各回転パルス数を夫々検出する検出手段と
、 該検出手段により検出された上記両回転パルス
数から逐次算出した該両回転パルス数の比に基づ
いて、前記磁気テープのテープ長内における位置
制御データを算出する算出手段と、 上記供給リールと上記巻取りリールの単位時間
当りの回転パルス数の和の値に応じて、予め設定
した範囲内でのみ補正量を算出する補正量生成手
段と、 上記算出手段により得られた上記位置制御デー
タに、該補正量生成手段により得られた該補正量
を加算して得たデータに基づいて前記テープ走行
用モータの駆動信号を生成する駆動信号生成手段
とよりなり、 前記供給リールと前記巻取りリールの単位時間
当りの各回転パルス数の和を、常に予め設定した
範囲内の略一定値にするように前記テープ走行速
度を制御するよう構成したテープ走行速度制御回
路。[Scope of Claim for Utility Model Registration] By controlling the drive signal to the tape running motor when the magnetic tape is unwound from the supply reel and wound onto the take-up reel when the tape runs at a higher speed than during recording, In a tape running speed control circuit that controls tape running speed, a detection means for detecting the number of rotational pulses per unit time of the supply reel and the take-up reel, and a number of rotational pulses of both the rotational pulses detected by the detection means. calculation means for calculating position control data within the tape length of the magnetic tape based on the ratio of the numbers of rotational pulses of the two rotational pulses calculated sequentially from the number of rotational pulses per unit time of the supply reel and the take-up reel; a correction amount generating means that calculates a correction amount only within a preset range according to the sum value; drive signal generating means for generating a drive signal for the tape running motor based on the data obtained by adding the numbers, and the sum of the number of rotation pulses per unit time of the supply reel and the take-up reel, A tape running speed control circuit configured to control the tape running speed so that the tape running speed is always kept at a substantially constant value within a preset range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5832188U JPH0544901Y2 (en) | 1988-04-28 | 1988-04-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5832188U JPH0544901Y2 (en) | 1988-04-28 | 1988-04-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01162138U true JPH01162138U (en) | 1989-11-10 |
| JPH0544901Y2 JPH0544901Y2 (en) | 1993-11-16 |
Family
ID=31284139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5832188U Expired - Lifetime JPH0544901Y2 (en) | 1988-04-28 | 1988-04-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0544901Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0417590A (en) * | 1990-05-11 | 1992-01-22 | Matsushita Electric Ind Co Ltd | Capstan control device |
-
1988
- 1988-04-28 JP JP5832188U patent/JPH0544901Y2/ja not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0417590A (en) * | 1990-05-11 | 1992-01-22 | Matsushita Electric Ind Co Ltd | Capstan control device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0544901Y2 (en) | 1993-11-16 |
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