JPS6128149U - magnetic recording device - Google Patents
magnetic recording deviceInfo
- Publication number
- JPS6128149U JPS6128149U JP11273484U JP11273484U JPS6128149U JP S6128149 U JPS6128149 U JP S6128149U JP 11273484 U JP11273484 U JP 11273484U JP 11273484 U JP11273484 U JP 11273484U JP S6128149 U JPS6128149 U JP S6128149U
- Authority
- JP
- Japan
- Prior art keywords
- recording device
- frequency generator
- magnetic recording
- motor
- output
- 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
- Rotational Drive Of Disk (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
−。
図面は本考案の二実施例を示した電気回路図である。
1・・・モータ、2・・・周波数発電機、3・・・F/
V変換回路、5・・・駆動トランジスタ、6・・・周期
測定回路。−. The drawings are electrical circuit diagrams showing two embodiments of the present invention. 1...Motor, 2...Frequency generator, 3...F/
V conversion circuit, 5... drive transistor, 6... period measurement circuit.
Claims (1)
回転に同期してパルスを発生する周波数発電機と、この
周波数発電機からのパルスの周波数に応じて上記モータ
の回転速度を制御する制御回路と、上記周波数発電機か
らのパルスの周期を測定し、これが所定値に達したとき
出力を発生する測定回路とからなり、上記磁気ディスク
を書込みおよび読出し可能状態に設定する条件の一つと
して上記測定回路の出力を用いたことを特徴とする磁気
記録装置。A motor for rotating a magnetic disk, a frequency generator that generates pulses in synchronization with the rotation of the motor, and a control circuit that controls the rotational speed of the motor according to the frequency of the pulses from the frequency generator. , and a measuring circuit that measures the period of the pulse from the frequency generator and generates an output when the period reaches a predetermined value, and the above measurement is performed as one of the conditions for setting the magnetic disk in a writable and readable state. A magnetic recording device characterized by using the output of a circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11273484U JPS6128149U (en) | 1984-07-25 | 1984-07-25 | magnetic recording device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11273484U JPS6128149U (en) | 1984-07-25 | 1984-07-25 | magnetic recording device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6128149U true JPS6128149U (en) | 1986-02-20 |
Family
ID=30671771
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11273484U Pending JPS6128149U (en) | 1984-07-25 | 1984-07-25 | magnetic recording device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6128149U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6379274A (en) * | 1986-09-22 | 1988-04-09 | Matsushita Electric Ind Co Ltd | Optical recording and reproducing device |
-
1984
- 1984-07-25 JP JP11273484U patent/JPS6128149U/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6379274A (en) * | 1986-09-22 | 1988-04-09 | Matsushita Electric Ind Co Ltd | Optical recording and reproducing device |
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