JPS554731A - Write and read system of flexible magnetic disc device - Google Patents
Write and read system of flexible magnetic disc deviceInfo
- Publication number
- JPS554731A JPS554731A JP7624378A JP7624378A JPS554731A JP S554731 A JPS554731 A JP S554731A JP 7624378 A JP7624378 A JP 7624378A JP 7624378 A JP7624378 A JP 7624378A JP S554731 A JPS554731 A JP S554731A
- Authority
- JP
- Japan
- Prior art keywords
- disc
- magnetic disc
- write
- head
- information write
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/20—Driving; Starting; Stopping; Control thereof
Abstract
PURPOSE:To reduce defacement and damage of the disc surface by rotating the magnetic disc only at an information write and read time. CONSTITUTION:When head 4 is brought into contact with a prescribed position of magnetic disc 5 and a power source is supplied, motor 6 is rotated. The rotation of this motor 6 is not transferred to disc 5 until electromagnetic clutch 7 becomes a connection state through electromagnetic clutch driver 8 by the control signal from host controller 1 according to information write and read, and disc 5 is rotated only at an information write and read time. As a result, defacement, damage, etc., of the disc surface can be reduced in comparison with a system where a head is loaded and unloaded to the rotating magnetic head.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7624378A JPS554731A (en) | 1978-06-23 | 1978-06-23 | Write and read system of flexible magnetic disc device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7624378A JPS554731A (en) | 1978-06-23 | 1978-06-23 | Write and read system of flexible magnetic disc device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS554731A true JPS554731A (en) | 1980-01-14 |
Family
ID=13599730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7624378A Pending JPS554731A (en) | 1978-06-23 | 1978-06-23 | Write and read system of flexible magnetic disc device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS554731A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56117371A (en) * | 1980-02-21 | 1981-09-14 | Canon Inc | Recording reproducing device |
JPS56134357A (en) * | 1980-03-22 | 1981-10-21 | Canon Inc | Driving control unit |
US4658307A (en) * | 1983-09-14 | 1987-04-14 | Teac Corporation | Data transfer apparatus for use with a flexible magnetic disk or the like |
US4700243A (en) * | 1983-07-29 | 1987-10-13 | Teac Corporation | Power saving circuit arrangement for an apparatus for data transfer with flexible magnetic disk or the like |
US4736263A (en) * | 1984-09-29 | 1988-04-05 | Hitachi, Ltd. | Method and apparatus for driving a disk |
US4797873A (en) * | 1986-04-24 | 1989-01-10 | Canon Kabushiki Kaisha | Disk cramp apparatus |
US4984103A (en) * | 1987-12-07 | 1991-01-08 | Fujitsu America, Inc. | Method for reading/writing for a floppy disc drive with buffer memory |
JPH05266640A (en) * | 1992-03-18 | 1993-10-15 | Fujitsu Ltd | Start control method for electronic appliance |
US5402200A (en) * | 1988-02-04 | 1995-03-28 | Conner Peripherals, Inc. | Low-power hard disk drive system architecture |
-
1978
- 1978-06-23 JP JP7624378A patent/JPS554731A/en active Pending
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56117371A (en) * | 1980-02-21 | 1981-09-14 | Canon Inc | Recording reproducing device |
JPS6363979B2 (en) * | 1980-02-21 | 1988-12-09 | ||
JPS56134357A (en) * | 1980-03-22 | 1981-10-21 | Canon Inc | Driving control unit |
JPH0222466B2 (en) * | 1980-03-22 | 1990-05-18 | Canon Kk | |
US4700243A (en) * | 1983-07-29 | 1987-10-13 | Teac Corporation | Power saving circuit arrangement for an apparatus for data transfer with flexible magnetic disk or the like |
US4658307A (en) * | 1983-09-14 | 1987-04-14 | Teac Corporation | Data transfer apparatus for use with a flexible magnetic disk or the like |
US4736263A (en) * | 1984-09-29 | 1988-04-05 | Hitachi, Ltd. | Method and apparatus for driving a disk |
US4797873A (en) * | 1986-04-24 | 1989-01-10 | Canon Kabushiki Kaisha | Disk cramp apparatus |
US4984103A (en) * | 1987-12-07 | 1991-01-08 | Fujitsu America, Inc. | Method for reading/writing for a floppy disc drive with buffer memory |
US5402200A (en) * | 1988-02-04 | 1995-03-28 | Conner Peripherals, Inc. | Low-power hard disk drive system architecture |
JPH05266640A (en) * | 1992-03-18 | 1993-10-15 | Fujitsu Ltd | Start control method for electronic appliance |
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