JPS5344A - Information position detecting method - Google Patents
Information position detecting methodInfo
- Publication number
- JPS5344A JPS5344A JP7488376A JP7488376A JPS5344A JP S5344 A JPS5344 A JP S5344A JP 7488376 A JP7488376 A JP 7488376A JP 7488376 A JP7488376 A JP 7488376A JP S5344 A JPS5344 A JP S5344A
- Authority
- JP
- Japan
- Prior art keywords
- information position
- position detecting
- detecting method
- spot
- recording
- 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 secure a high-accuracy detection eliminating an optical system by recording one spot as a hologram in the recording medium for each information position and then by detecting the spot through a photo detection. As a result, the malfunction caused by the dust attached on the medium.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7488376A JPS5344A (en) | 1976-06-24 | 1976-06-24 | Information position detecting method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7488376A JPS5344A (en) | 1976-06-24 | 1976-06-24 | Information position detecting method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5344A true JPS5344A (en) | 1978-01-05 |
Family
ID=13560193
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7488376A Pending JPS5344A (en) | 1976-06-24 | 1976-06-24 | Information position detecting method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5344A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4929210A (en) * | 1984-10-26 | 1990-05-29 | Nokia Graetz | Cathode-ray tube supporting rack |
-
1976
- 1976-06-24 JP JP7488376A patent/JPS5344A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4929210A (en) * | 1984-10-26 | 1990-05-29 | Nokia Graetz | Cathode-ray tube supporting rack |
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