GB2087628B - Apparatus for recording data in a discshaped optically readable record carrier - Google Patents
Apparatus for recording data in a discshaped optically readable record carrierInfo
- Publication number
- GB2087628B GB2087628B GB8134435A GB8134435A GB2087628B GB 2087628 B GB2087628 B GB 2087628B GB 8134435 A GB8134435 A GB 8134435A GB 8134435 A GB8134435 A GB 8134435A GB 2087628 B GB2087628 B GB 2087628B
- Authority
- GB
- United Kingdom
- Prior art keywords
- discshaped
- recording data
- record carrier
- optically readable
- readable record
- 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.)
- Expired
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
- G11B7/24073—Tracks
- G11B7/24082—Meandering
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/36—Monitoring, i.e. supervising the progress of recording or 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
- 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
- G11B7/0948—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 specially adapted for detection and avoidance or compensation of imperfections on the carrier, e.g. dust, scratches, dropouts
-
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8006306A NL8006306A (en) | 1980-11-19 | 1980-11-19 | DISC-SHAPED, OPTICALLY READABLE RECORD CARRIER AS A STORAGE MEDIA FOR DATA INFORMATION, DEVICE FOR MANUFACTURING SUCH RECORD CARRIER AND DEVICE FOR RECORDING DATA INFORMATION IN SUCH RECORD CARRIAGE. |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2087628A GB2087628A (en) | 1982-05-26 |
GB2087628B true GB2087628B (en) | 1984-10-10 |
Family
ID=19836204
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8134435A Expired GB2087628B (en) | 1980-11-19 | 1981-11-16 | Apparatus for recording data in a discshaped optically readable record carrier |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS57113426A (en) |
DE (1) | DE3145128A1 (en) |
ES (1) | ES507205A0 (en) |
FR (1) | FR2494476A1 (en) |
GB (1) | GB2087628B (en) |
IT (1) | IT1194113B (en) |
NL (1) | NL8006306A (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8103117A (en) * | 1981-06-29 | 1983-01-17 | Philips Nv | DEVICE FOR DESCRIBING AND / OR READING A RECORD CARRIER. |
US4443870A (en) * | 1981-10-15 | 1984-04-17 | Burroughs Corporation | Optical memory system providing track following |
JPS58158038A (en) * | 1982-03-15 | 1983-09-20 | Toshiba Corp | Optical disc device |
JPS59227039A (en) * | 1983-06-07 | 1984-12-20 | Matsushita Electric Ind Co Ltd | Recording and reproducing master disk preparing device |
JPS6185653A (en) * | 1984-10-02 | 1986-05-01 | Sharp Corp | Optical memory element |
JPS63144454A (en) * | 1986-12-08 | 1988-06-16 | Alps Electric Co Ltd | Information recording disk |
JP3264385B2 (en) * | 1992-09-09 | 2002-03-11 | ソニー株式会社 | Optical disk recording / reproducing device |
US7701836B2 (en) | 2001-11-27 | 2010-04-20 | Hewlett-Packard Development Company, L.P. | Re-writable optical disk having reference clock information permanently formed on the disk |
US6046968A (en) * | 1997-07-24 | 2000-04-04 | Hewlett-Packard Company | Re-writable optical disk having reference clock information permanently formed on the disk |
KR100416588B1 (en) * | 2001-01-04 | 2004-02-05 | 삼성전자주식회사 | Apparatus for detecting wobble defect and method thereof |
WO2004112013A1 (en) * | 2003-06-19 | 2004-12-23 | Koninklijke Philips Electronics N.V. | Device and method of reducing data -to- pushpull cross-talk |
-
1980
- 1980-11-19 NL NL8006306A patent/NL8006306A/en not_active Application Discontinuation
-
1981
- 1981-11-13 DE DE19813145128 patent/DE3145128A1/en not_active Withdrawn
- 1981-11-16 JP JP56182417A patent/JPS57113426A/en active Pending
- 1981-11-16 IT IT25119/81A patent/IT1194113B/en active
- 1981-11-16 GB GB8134435A patent/GB2087628B/en not_active Expired
- 1981-11-17 ES ES507205A patent/ES507205A0/en active Granted
- 1981-11-18 FR FR8121561A patent/FR2494476A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
JPS57113426A (en) | 1982-07-14 |
FR2494476A1 (en) | 1982-05-21 |
ES8301044A1 (en) | 1982-11-01 |
IT8125119A0 (en) | 1981-11-16 |
NL8006306A (en) | 1982-06-16 |
GB2087628A (en) | 1982-05-26 |
IT1194113B (en) | 1988-09-14 |
ES507205A0 (en) | 1982-11-01 |
DE3145128A1 (en) | 1982-06-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |