CS201892A3 - Board memory for optically scanned binary information - Google Patents
Board memory for optically scanned binary informationInfo
- Publication number
- CS201892A3 CS201892A3 CS922018A CS201892A CS201892A3 CS 201892 A3 CS201892 A3 CS 201892A3 CS 922018 A CS922018 A CS 922018A CS 201892 A CS201892 A CS 201892A CS 201892 A3 CS201892 A3 CS 201892A3
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- binary information
- board memory
- optically scanned
- scanned binary
- optically
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
- G11B7/24085—Pits
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0938—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following servo format, e.g. guide tracks, pilot signals
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
- G11B7/24073—Tracks
- G11B7/24079—Width or depth
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4121505A DE4121505A1 (en) | 1991-06-28 | 1991-06-28 | DISK-SHAPED MEMORY FOR BINARY INFORMATION |
Publications (1)
Publication Number | Publication Date |
---|---|
CS201892A3 true CS201892A3 (en) | 1993-01-13 |
Family
ID=6435031
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CS922018A CS201892A3 (en) | 1991-06-28 | 1992-06-29 | Board memory for optically scanned binary information |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0520251A3 (en) |
CS (1) | CS201892A3 (en) |
DE (1) | DE4121505A1 (en) |
HU (1) | HU9201917D0 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4311683C2 (en) * | 1993-04-08 | 1996-05-02 | Sonopress Prod | Disc-shaped optical memory and method for its production |
DE69505794T2 (en) * | 1994-02-15 | 1999-06-02 | Koninklijke Philips Electronics N.V., Eindhoven | METHOD FOR CONVERTING M-BIT INFORMATION WORDS INTO A MODULATED SIGNAL, METHOD FOR PRODUCING A RECORDING CARRIER, ENCODING, DECODING, RECORDING AND READING DEVICE AND RECORDING CARRIER |
DE19948234A1 (en) * | 1999-10-07 | 2001-04-12 | Friedrich Hofmann | Producing glass pattern for disc-shaped optical memory involves separate image and data application processes in which only image or data are applied to separate spiral image or data tracks |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8100098A (en) * | 1981-01-12 | 1982-08-02 | Philips Nv | RECORD CARRIER WITH OPTICALLY READABLE INFORMATION STRUCTURE. |
NL8103504A (en) * | 1981-07-24 | 1983-02-16 | Philips Nv | RECORD CARRIER WITH AN OPTICALLY READABLE INFORMATION STRUCTURE AND DEVICE FOR READING IT. |
JPS5873026A (en) * | 1981-10-26 | 1983-05-02 | Nippon Telegr & Teleph Corp <Ntt> | Optical disc provided with groove |
JPS5911551A (en) * | 1982-07-12 | 1984-01-21 | Toshiba Corp | Optical information storage medium |
EP0100995A3 (en) * | 1982-08-10 | 1985-10-16 | Kabushiki Kaisha Toshiba | Optical disk |
JPS6151631A (en) * | 1984-08-20 | 1986-03-14 | Sharp Corp | Optical memory element |
JPS648514A (en) * | 1987-07-01 | 1989-01-12 | Canon Kk | Method and device for reproducing optical information and optical information recording medium |
JPH01189039A (en) * | 1988-01-22 | 1989-07-28 | Mitsubishi Electric Corp | Optical information recording carrier |
-
1991
- 1991-06-28 DE DE4121505A patent/DE4121505A1/en not_active Withdrawn
-
1992
- 1992-06-09 HU HU9201917A patent/HU9201917D0/en unknown
- 1992-06-11 EP EP19920109867 patent/EP0520251A3/en not_active Withdrawn
- 1992-06-29 CS CS922018A patent/CS201892A3/en unknown
Also Published As
Publication number | Publication date |
---|---|
EP0520251A2 (en) | 1992-12-30 |
EP0520251A3 (en) | 1993-04-21 |
HUT63509A (en) | 1993-08-30 |
HU9201917D0 (en) | 1993-08-30 |
DE4121505A1 (en) | 1993-01-07 |
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