BE845468A - DEVICE FOR OPTICAL READING OF A RECORD HOLDER - Google Patents
DEVICE FOR OPTICAL READING OF A RECORD HOLDERInfo
- Publication number
- BE845468A BE845468A BE170035A BE170035A BE845468A BE 845468 A BE845468 A BE 845468A BE 170035 A BE170035 A BE 170035A BE 170035 A BE170035 A BE 170035A BE 845468 A BE845468 A BE 845468A
- Authority
- BE
- Belgium
- Prior art keywords
- optical reading
- record holder
- record
- holder
- reading
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
-
- 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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/005—Reproducing
-
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7510035A NL7510035A (en) | 1975-08-26 | 1975-08-26 | REGISTRATION CARRIER WITH AN OPTICALLY READABLE, TRACK-SIZED, INFORMATION STRUCTURE AND DEVICE FOR READING THIS. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE845468A true BE845468A (en) | 1977-02-24 |
Family
ID=19824353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE170035A BE845468A (en) | 1975-08-26 | 1976-08-24 | DEVICE FOR OPTICAL READING OF A RECORD HOLDER |
Country Status (17)
| Country | Link |
|---|---|
| JP (1) | JPS5228303A (en) |
| AT (1) | AT351819B (en) |
| AU (1) | AU505280B2 (en) |
| BE (1) | BE845468A (en) |
| CA (1) | CA1082356A (en) |
| CH (1) | CH612781A5 (en) |
| DE (1) | DE2636464C2 (en) |
| DK (1) | DK378976A (en) |
| ES (1) | ES450938A1 (en) |
| FR (1) | FR2322418A1 (en) |
| GB (1) | GB1516285A (en) |
| IT (1) | IT1071416B (en) |
| NL (1) | NL7510035A (en) |
| NO (1) | NO762892L (en) |
| NZ (1) | NZ181831A (en) |
| SE (1) | SE424235B (en) |
| ZA (1) | ZA764771B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4122551A (en) * | 1977-04-08 | 1978-10-24 | Xerox Corporation | Optical data storage and retrieval system |
| FR2396379A1 (en) * | 1977-07-01 | 1979-01-26 | Thomson Brandt | OPTICAL INFORMATION DISC READER EQUIPPED WITH AN AUTOMATIC INFORMATION ACCESS DEVICE |
| NL7811003A (en) * | 1978-11-06 | 1980-05-08 | Philips Nv | DISC-SHAPED, OPTICALLY READABLE RECORD CARRIER, AS A STORAGE MEDIUM FOR DATA INFORMATION. |
| US4484319A (en) * | 1980-09-19 | 1984-11-20 | Matsushita Electric Industrial Co., Ltd. | Apparatus for locating a track on disc-like optical information carriers |
| JPS57105828A (en) * | 1980-12-19 | 1982-07-01 | Matsushita Electric Ind Co Ltd | Optical disk recording and reproducing system |
| EP0124580B1 (en) * | 1982-11-01 | 1991-04-03 | Storage Technology Partners Ii | Fine and coarse servo system for access and tracking on an optical disk |
| US4805162A (en) * | 1982-11-01 | 1989-02-14 | Storage Technology Partners Ii | Fine and coarse servo system for access and tracking on an optical disk |
| NL8503411A (en) * | 1985-12-11 | 1987-07-01 | Philips Nv | DEVICE FOR DETERMINING A CENTERING ERROR OF A ROUND TRACKED INFORMATION STRUCTURE IN AN OPTICAL REGISTRATION CARRIER WITH REGARD TO THE ROTATING AXIS OF A TURNTABLE ON WHICH THE REGISTRATION CARRIER IS INCLUDED IN A PURPOSE, INCLUDING ANY APPARATUS, INCLUDING ANY APPARATUS. |
| NL8600934A (en) * | 1986-04-14 | 1987-11-02 | Optical Storage Int | OPTICAL REGISTRATION CARRIER AND DEVICE FOR READING THE REGISTRATION CARRIER. |
| US4945476A (en) * | 1988-02-26 | 1990-07-31 | Elsevier Science Publishing Company, Inc. | Interactive system and method for creating and editing a knowledge base for use as a computerized aid to the cognitive process of diagnosis |
| DE69233335T2 (en) * | 1991-12-02 | 2005-02-10 | Koninklijke Philips Electronics N.V. | Closed information system with copy protection |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2037800A1 (en) * | 1970-07-30 | 1972-02-03 | Wittmoser | Sound or image plate |
| NL7314267A (en) * | 1973-10-17 | 1975-04-21 | Philips Nv | REGISTRATION CARRIER ON WHICH INFORMATION HAS BEEN MADE IN AN OPTICALLY READABLE STRUCTURE. |
| NL7401858A (en) * | 1974-02-12 | 1975-08-14 | Philips Nv | REGISTRATION CARRIER ON WHICH INFORMATION IS INDICATED IN AN OPTICALLY READABLE STRUCTURE. |
-
1975
- 1975-08-26 NL NL7510035A patent/NL7510035A/en not_active Application Discontinuation
-
1976
- 1976-08-09 ZA ZA00764771A patent/ZA764771B/en unknown
- 1976-08-13 DE DE2636464A patent/DE2636464C2/en not_active Expired
- 1976-08-23 NO NO762892A patent/NO762892L/no unknown
- 1976-08-23 CH CH1068476A patent/CH612781A5/en not_active IP Right Cessation
- 1976-08-23 NZ NZ181831A patent/NZ181831A/en unknown
- 1976-08-23 SE SE7609291A patent/SE424235B/en unknown
- 1976-08-23 IT IT69069/76A patent/IT1071416B/en active
- 1976-08-23 CA CA259,653A patent/CA1082356A/en not_active Expired
- 1976-08-23 GB GB34976/76A patent/GB1516285A/en not_active Expired
- 1976-08-23 DK DK378976A patent/DK378976A/en unknown
- 1976-08-24 BE BE170035A patent/BE845468A/en not_active IP Right Cessation
- 1976-08-24 ES ES450938A patent/ES450938A1/en not_active Expired
- 1976-08-24 AT AT626776A patent/AT351819B/en not_active IP Right Cessation
- 1976-08-24 AU AU17080/76A patent/AU505280B2/en not_active Expired
- 1976-08-26 JP JP51101175A patent/JPS5228303A/en active Pending
- 1976-08-26 FR FR7625819A patent/FR2322418A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| ZA764771B (en) | 1978-03-29 |
| IT1071416B (en) | 1985-04-10 |
| AU1708076A (en) | 1978-03-02 |
| NL7510035A (en) | 1977-03-01 |
| SE424235B (en) | 1982-07-05 |
| FR2322418B1 (en) | 1981-09-25 |
| DK378976A (en) | 1977-02-27 |
| SE7609291L (en) | 1977-02-27 |
| ES450938A1 (en) | 1977-12-01 |
| AT351819B (en) | 1979-08-10 |
| JPS5228303A (en) | 1977-03-03 |
| NZ181831A (en) | 1980-09-12 |
| DE2636464C2 (en) | 1984-04-05 |
| CA1082356A (en) | 1980-07-22 |
| GB1516285A (en) | 1978-07-05 |
| AU505280B2 (en) | 1979-11-15 |
| FR2322418A1 (en) | 1977-03-25 |
| ATA626776A (en) | 1979-01-15 |
| NO762892L (en) | 1977-03-01 |
| DE2636464A1 (en) | 1977-03-03 |
| CH612781A5 (en) | 1979-08-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE | Patent lapsed |
Owner name: N.V. PHILIPS GLOEILAMPENFABRIEKEN Effective date: 19840824 |