JPS6430024A - Method for destructing data stored in optical disk - Google Patents
Method for destructing data stored in optical diskInfo
- Publication number
- JPS6430024A JPS6430024A JP18618587A JP18618587A JPS6430024A JP S6430024 A JPS6430024 A JP S6430024A JP 18618587 A JP18618587 A JP 18618587A JP 18618587 A JP18618587 A JP 18618587A JP S6430024 A JPS6430024 A JP S6430024A
- Authority
- JP
- Japan
- Prior art keywords
- disk
- optical disk
- roughing
- data
- jig
- 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 shorten time for destructing data and to prevent the generation of environmental pollution by optically roughing the surface of plastic or the like used for the base material of an optical disk to disable data stored in the disk from being read out. CONSTITUTION:A jig 6 for roughing the surface of the optical disk 1 is constituted of a material, e.g. a file, for roughing the surface of the base material of the optical disk 1 made of plastic or the like stuck to a base 8. The jig 6 for roughing the surface of the optical disk 1 is inserted from a window 3 into a cartridge 2, and while contacting the jig 6 with the surface of the disk 1, the disk 1 is rotated to rough the surface of the disk 1. Since laser beams radiated to a recording film 4 in order to reproduce data are dispersed on the surface of the disk 1, the data can not be read out. Consequently, data can be disabled from being read out within a short time and a method for mechanically destructing the optical disk 1 is adopted to prevent the generation of a pollution problem.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18618587A JPS6430024A (en) | 1987-07-24 | 1987-07-24 | Method for destructing data stored in optical disk |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18618587A JPS6430024A (en) | 1987-07-24 | 1987-07-24 | Method for destructing data stored in optical disk |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6430024A true JPS6430024A (en) | 1989-01-31 |
Family
ID=16183876
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18618587A Pending JPS6430024A (en) | 1987-07-24 | 1987-07-24 | Method for destructing data stored in optical disk |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6430024A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4967715A (en) * | 1988-12-08 | 1990-11-06 | Fuji Jukogyo Kabushiki Kaisha | Fuel injection control system for an automotive engine |
-
1987
- 1987-07-24 JP JP18618587A patent/JPS6430024A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4967715A (en) * | 1988-12-08 | 1990-11-06 | Fuji Jukogyo Kabushiki Kaisha | Fuel injection control system for an automotive engine |
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