JPS52145006A - Highly densed recording signals reproduction device - Google Patents
Highly densed recording signals reproduction deviceInfo
- Publication number
- JPS52145006A JPS52145006A JP6206276A JP6206276A JPS52145006A JP S52145006 A JPS52145006 A JP S52145006A JP 6206276 A JP6206276 A JP 6206276A JP 6206276 A JP6206276 A JP 6206276A JP S52145006 A JPS52145006 A JP S52145006A
- Authority
- JP
- Japan
- Prior art keywords
- reproduction device
- recording signals
- highly densed
- densed
- highly
- 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 make the position of an optical spot optimal by providing servo system controlling te rotating angle of a diffraction grating, together with, making the adjustment of the servo system.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6206276A JPS52145006A (en) | 1976-05-27 | 1976-05-27 | Highly densed recording signals reproduction device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6206276A JPS52145006A (en) | 1976-05-27 | 1976-05-27 | Highly densed recording signals reproduction device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS52145006A true JPS52145006A (en) | 1977-12-02 |
Family
ID=13189250
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6206276A Pending JPS52145006A (en) | 1976-05-27 | 1976-05-27 | Highly densed recording signals reproduction device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS52145006A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2480016A1 (en) * | 1980-04-03 | 1981-10-09 | Philips Nv | DISC INFORMATION TRACK TRACKING DEVICE |
EP0140215A2 (en) * | 1983-11-03 | 1985-05-08 | Deutsche Thomson-Brandt GmbH | Tracking system for marking angle errors of the tangent during optical reproduction of a disc |
JPS6179822U (en) * | 1984-10-30 | 1986-05-28 | ||
EP0201603A1 (en) * | 1984-10-15 | 1986-11-20 | Sony Corporation | System for detecting tracking error of an optical head |
JPH01302543A (en) * | 1988-02-26 | 1989-12-06 | Fujitsu Ltd | Tracking error detecting method and diffraction grating and optical detector used for said detecting method |
-
1976
- 1976-05-27 JP JP6206276A patent/JPS52145006A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2480016A1 (en) * | 1980-04-03 | 1981-10-09 | Philips Nv | DISC INFORMATION TRACK TRACKING DEVICE |
EP0140215A2 (en) * | 1983-11-03 | 1985-05-08 | Deutsche Thomson-Brandt GmbH | Tracking system for marking angle errors of the tangent during optical reproduction of a disc |
EP0201603A1 (en) * | 1984-10-15 | 1986-11-20 | Sony Corporation | System for detecting tracking error of an optical head |
US4775968A (en) * | 1984-10-15 | 1988-10-04 | Sony Corporation | Tracking error detecting system for optical head |
JPS6179822U (en) * | 1984-10-30 | 1986-05-28 | ||
JPH01302543A (en) * | 1988-02-26 | 1989-12-06 | Fujitsu Ltd | Tracking error detecting method and diffraction grating and optical detector used for said detecting method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU503889B2 (en) | Disc track servo system | |
AU504718B2 (en) | Servo system for head / track alignment | |
AU2497377A (en) | Vaporizing samples by laser | |
AU2338577A (en) | Velocity and phase control for disc play / record system | |
AU501131B2 (en) | A focus control system | |
JPS5313309A (en) | Optically reproducing unit | |
GB1548658A (en) | System for reading out a record by the point optical scannning of a diffractive track | |
JPS52145006A (en) | Highly densed recording signals reproduction device | |
AU509322B2 (en) | Optical recording | |
JPS52145005A (en) | Highly densed recording signals reproduction device | |
JPS533305A (en) | Optical reproduction device | |
JPS52134704A (en) | Optical recorder/reproducer unit | |
JPS52134705A (en) | Optical recorder/reproducer unit | |
JPS53132308A (en) | Focus controller of optical reproducer | |
JPS5223310A (en) | Data signal optical regeneration system | |
JPS53110805A (en) | Optical information recording/reproducing device | |
JPS5387203A (en) | Stabilizing system for rotary mirror in optical information recorder/reproducer | |
JPS5265404A (en) | Information recording original disk being furnished with pattern for d etecting focus position | |
JPS52107801A (en) | Manufacture for information recording media original disc | |
JPS5362502A (en) | Optical recording-reproducing apparatus | |
CA1003670A (en) | Diffraction smoothing aperture for an optical beam | |
JPS5237006A (en) | Video disc reproducing dquipment | |
SU832722A1 (en) | Switching device with memorizing control signal | |
JPS5211035A (en) | Recording system | |
JPS52123642A (en) | Optical path adjuster for laser beams |