JPS5654615A - Magnetic disk device - Google Patents
Magnetic disk deviceInfo
- Publication number
- JPS5654615A JPS5654615A JP13152579A JP13152579A JPS5654615A JP S5654615 A JPS5654615 A JP S5654615A JP 13152579 A JP13152579 A JP 13152579A JP 13152579 A JP13152579 A JP 13152579A JP S5654615 A JPS5654615 A JP S5654615A
- Authority
- JP
- Japan
- Prior art keywords
- recording
- faces
- magnetic disk
- same
- reproduction
- 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
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
PURPOSE: To increase the transfer velocity and thus to realize a high-speed recording/reproducing process, by forming the same sector over several faces such as both the faces of a magnetic disk and then carrying out the recording and reproduction.
CONSTITUTION: Both the odd and even order numbers of the clock pulses are allotted through the latch circuit 15 in the distributing circuit 18, and a control is given to the switching regions of the AND gates 9 and 10 plus 19 and 20. Then the recording is carried out for several same sectors such as two pairs and the like which are formed over both faces of the magnetic disk 1 by the magnetic heads 2 and 3 opposing to each other centering on the disk 1 via the proper recording/reproducing circuits 4 and 5. In the same way, the reproduction is carried out in allotment to be then compounded. In such constitution, the transfer velocity of the information can be increased double in comparison with the case in which several same disks are not formed, thus realizing a high-speed recording/reproducing process for the information.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13152579A JPS5654615A (en) | 1979-10-12 | 1979-10-12 | Magnetic disk device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13152579A JPS5654615A (en) | 1979-10-12 | 1979-10-12 | Magnetic disk device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5654615A true JPS5654615A (en) | 1981-05-14 |
Family
ID=15060092
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13152579A Pending JPS5654615A (en) | 1979-10-12 | 1979-10-12 | Magnetic disk device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5654615A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2574211A1 (en) * | 1984-12-05 | 1986-06-06 | Philips Nv | METHOD FOR ADDRESSING INFORMATION STORED IN A STORAGE DEVICE AND STORAGE DEVICE FOR EXECUTING THE PROCESS |
JPS6220139A (en) * | 1985-07-19 | 1987-01-28 | Hitachi Ltd | Optical disk device |
JPH04212731A (en) * | 1990-03-23 | 1992-08-04 | Matsushita Electric Ind Co Ltd | Optical head and optical disk |
-
1979
- 1979-10-12 JP JP13152579A patent/JPS5654615A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2574211A1 (en) * | 1984-12-05 | 1986-06-06 | Philips Nv | METHOD FOR ADDRESSING INFORMATION STORED IN A STORAGE DEVICE AND STORAGE DEVICE FOR EXECUTING THE PROCESS |
JPS6220139A (en) * | 1985-07-19 | 1987-01-28 | Hitachi Ltd | Optical disk device |
JPH04212731A (en) * | 1990-03-23 | 1992-08-04 | Matsushita Electric Ind Co Ltd | Optical head and optical disk |
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