JPS5371808A - Optical information reader - Google Patents
Optical information readerInfo
- Publication number
- JPS5371808A JPS5371808A JP14747776A JP14747776A JPS5371808A JP S5371808 A JPS5371808 A JP S5371808A JP 14747776 A JP14747776 A JP 14747776A JP 14747776 A JP14747776 A JP 14747776A JP S5371808 A JPS5371808 A JP S5371808A
- Authority
- JP
- Japan
- Prior art keywords
- optical information
- information reader
- signal
- supplementary
- positiondetecting
- 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 stably drive the light-direction-variable unit, by integrating the track-positiondetecting signal according to the supplementary beam on the disk type record-carrier and the differentiated value of the read-beam-signal, and adding the integrated result to the supplementary beam-signal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14747776A JPS5371808A (en) | 1976-12-08 | 1976-12-08 | Optical information reader |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14747776A JPS5371808A (en) | 1976-12-08 | 1976-12-08 | Optical information reader |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5371808A true JPS5371808A (en) | 1978-06-26 |
Family
ID=15431263
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14747776A Pending JPS5371808A (en) | 1976-12-08 | 1976-12-08 | Optical information reader |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5371808A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57205833A (en) * | 1981-06-12 | 1982-12-17 | Sony Corp | Optical reproducing device |
JPS63148434A (en) * | 1986-11-17 | 1988-06-21 | エヌ・ベー・フィリップス・フルーイランペンファブリケン | Information apparatus using disc-shaped record carrier |
JPH0773476A (en) * | 1986-08-29 | 1995-03-17 | Laser Magnetic Storage Internatl Co | Optical disk |
-
1976
- 1976-12-08 JP JP14747776A patent/JPS5371808A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57205833A (en) * | 1981-06-12 | 1982-12-17 | Sony Corp | Optical reproducing device |
JPH0253853B2 (en) * | 1981-06-12 | 1990-11-20 | Sony Corp | |
JPH0773476A (en) * | 1986-08-29 | 1995-03-17 | Laser Magnetic Storage Internatl Co | Optical disk |
JPS63148434A (en) * | 1986-11-17 | 1988-06-21 | エヌ・ベー・フィリップス・フルーイランペンファブリケン | Information apparatus using disc-shaped record carrier |
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