JPS5715260A - Disk deformation detection system - Google Patents
Disk deformation detection systemInfo
- Publication number
- JPS5715260A JPS5715260A JP8662980A JP8662980A JPS5715260A JP S5715260 A JPS5715260 A JP S5715260A JP 8662980 A JP8662980 A JP 8662980A JP 8662980 A JP8662980 A JP 8662980A JP S5715260 A JPS5715260 A JP S5715260A
- Authority
- JP
- Japan
- Prior art keywords
- disk
- detecting
- deformation
- detection system
- deformation detection
- 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
Abstract
PURPOSE: To prevent a recording and reproducing head and a disk from breaking by detecting the deformation of the disk by detecting the reflected light of light incident to a disk surface.
CONSTITUTION: A disk 1 is coupled with a driving motor 2 via a hub 2 to be driven and a recording and reproducing head 4 records and reproduces information on and from the surface of the disk. A fault detector 5 is provided near the outer circumferential surface of the disk to detect variations in the quantity of the reflected light of light incident to the surface of the disk 1, thereby detecting the extent of the deformation of the disk 1. When the extent of this deformation exceeds a prescribed value, the rotation of the driving motor 2 is stopped.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8662980A JPS5715260A (en) | 1980-06-27 | 1980-06-27 | Disk deformation detection system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8662980A JPS5715260A (en) | 1980-06-27 | 1980-06-27 | Disk deformation detection system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5715260A true JPS5715260A (en) | 1982-01-26 |
Family
ID=13892313
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8662980A Pending JPS5715260A (en) | 1980-06-27 | 1980-06-27 | Disk deformation detection system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5715260A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5972676A (en) * | 1982-10-18 | 1984-04-24 | Matsushita Electric Ind Co Ltd | Disc recorder and reproducer |
JPH03224171A (en) * | 1990-01-30 | 1991-10-03 | Kenwood Corp | Method for discriminating unclamped state of disk |
-
1980
- 1980-06-27 JP JP8662980A patent/JPS5715260A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5972676A (en) * | 1982-10-18 | 1984-04-24 | Matsushita Electric Ind Co Ltd | Disc recorder and reproducer |
JPH03224171A (en) * | 1990-01-30 | 1991-10-03 | Kenwood Corp | Method for discriminating unclamped state of disk |
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