JPS644990A - Optical disk system - Google Patents
Optical disk systemInfo
- Publication number
- JPS644990A JPS644990A JP16064187A JP16064187A JPS644990A JP S644990 A JPS644990 A JP S644990A JP 16064187 A JP16064187 A JP 16064187A JP 16064187 A JP16064187 A JP 16064187A JP S644990 A JPS644990 A JP S644990A
- Authority
- JP
- Japan
- Prior art keywords
- optical disk
- read
- write
- storage part
- medium
- 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
- Optical Recording Or Reproduction (AREA)
Abstract
PURPOSE:To perform the management of an optical disk medium at high speed, by providing heads to read and write a reloadable storage part in a device for the read/write of the optical disk medium. CONSTITUTION:The upper plane of the optical disk medium 1 is unreloadable and forms an optical storage part 2 large in capacity, and the read/write of data is performed by an optical head 4. The lower plane of the optical disk medium 1 is reloadable and forms a magnetic storage part 3 small in capacity, and the read/write of medium managing information is performed by a magnetic head 5. At the magnetic storage part 3, the rewrite of the data is enabled, and it is possible to update the medium managing information by erasing preceding information and writing updated information at the same part as that where the preceding information has been written. In such a way, it is possible to shorten a time to read out the medium managing information.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16064187A JPS644990A (en) | 1987-06-26 | 1987-06-26 | Optical disk system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16064187A JPS644990A (en) | 1987-06-26 | 1987-06-26 | Optical disk system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS644990A true JPS644990A (en) | 1989-01-10 |
Family
ID=15719325
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16064187A Pending JPS644990A (en) | 1987-06-26 | 1987-06-26 | Optical disk system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS644990A (en) |
-
1987
- 1987-06-26 JP JP16064187A patent/JPS644990A/en active Pending
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