ZA795363B - Record carrier containing information in an optically readable information structure - Google Patents
Record carrier containing information in an optically readable information structureInfo
- Publication number
- ZA795363B ZA795363B ZA00795363A ZA795363A ZA795363B ZA 795363 B ZA795363 B ZA 795363B ZA 00795363 A ZA00795363 A ZA 00795363A ZA 795363 A ZA795363 A ZA 795363A ZA 795363 B ZA795363 B ZA 795363B
- Authority
- ZA
- South Africa
- Prior art keywords
- record carrier
- optically readable
- carrier containing
- information
- containing information
- 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
- G11B7/08—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
- G11B7/24076—Cross sectional shape in the radial direction of a disc, e.g. asymmetrical cross sectional shape
-
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7810463A NL7810463A (nl) | 1978-10-19 | 1978-10-19 | Registratiedrager waarin informatie is aangebracht in een optisch uitleesbare informatiestruktuur. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA795363B true ZA795363B (en) | 1981-05-27 |
Family
ID=19831739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA00795363A ZA795363B (en) | 1978-10-19 | 1979-10-08 | Record carrier containing information in an optically readable information structure |
Country Status (19)
| Country | Link |
|---|---|
| US (1) | US4930116A (fr) |
| JP (1) | JPS5555449A (fr) |
| AT (1) | AT367228B (fr) |
| AU (1) | AU531730B2 (fr) |
| BE (1) | BE879463A (fr) |
| BR (1) | BR7906659A (fr) |
| CA (1) | CA1152643A (fr) |
| CH (1) | CH651413A5 (fr) |
| DE (1) | DE2941943A1 (fr) |
| DK (1) | DK149276C (fr) |
| ES (1) | ES485094A1 (fr) |
| FR (1) | FR2439522B1 (fr) |
| GB (1) | GB2034097B (fr) |
| IT (1) | IT1119224B (fr) |
| NL (1) | NL7810463A (fr) |
| NZ (1) | NZ191856A (fr) |
| SE (2) | SE443890B (fr) |
| SG (1) | SG56782G (fr) |
| ZA (1) | ZA795363B (fr) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1165871A (fr) * | 1978-11-08 | 1984-04-17 | Kornelis Bulthuis | Support d'enregistrement optique |
| JPS56117341A (en) * | 1980-02-18 | 1981-09-14 | Toshiba Corp | Optical disk and its manufacture |
| JPS57158047A (en) * | 1981-03-24 | 1982-09-29 | Toshiba Corp | Optical information recording medium |
| JPS5862842A (ja) * | 1981-10-09 | 1983-04-14 | Matsushita Electric Ind Co Ltd | 光学的記録用円盤 |
| JPS58125242A (ja) * | 1982-01-22 | 1983-07-26 | Victor Co Of Japan Ltd | 光学的情報信号再生装置のトラツキング誤差検出方式 |
| JPS6050848A (ja) * | 1983-08-31 | 1985-03-20 | Wako Gomme Kogyo Kk | アノ−ドキヤツプのｘ線漏出防止装置 |
| JPH0648546B2 (ja) * | 1984-07-14 | 1994-06-22 | 日本ビクター株式会社 | 情報記録担体の製造法 |
| GB8424948D0 (en) * | 1984-10-03 | 1984-11-07 | Ici Plc | Optical recording medium |
| NL8500152A (nl) * | 1985-01-22 | 1986-08-18 | Philips Nv | Registratiedragerlichaam voorzien van vooraf aangebrachte en optisch detekteerbare servospoorgedeelten en sektoradressen. |
| NL8500153A (nl) * | 1985-01-22 | 1986-08-18 | Philips Nv | Registratiedragerlichaam voorzien van een reliefstruktuur van optisch detekteerbare servospoorgedeelten en sektoradressen en inrichting voor het aanbrengen van deze struktuur. |
| US5144552A (en) * | 1986-07-25 | 1992-09-01 | Ricoh Company, Ltd. | Optical information storage medium having grooves and pits with specific depths, respectively |
| US5553051A (en) * | 1987-09-04 | 1996-09-03 | Hitachi, Ltd. | Increased intensity optical recording medium with adjacent grooves of different optical depth and a method and apparatus for reproducing the same |
| JPH01189039A (ja) * | 1988-01-22 | 1989-07-28 | Mitsubishi Electric Corp | 光学式情報記録担体 |
| EP0376678B1 (fr) * | 1988-12-28 | 1995-03-01 | Canon Kabushiki Kaisha | Support d'enregistrement d'information |
| US7239602B2 (en) * | 1998-08-27 | 2007-07-03 | Ricoh Company, Ltd. | Optical information recording medium with a partition wall between an information tracks groove and a preformat pit encoding information therefor |
| US6767695B2 (en) * | 2001-01-17 | 2004-07-27 | International Business Machines Corporation | CDROM copy protection |
| CN1981243A (zh) * | 2004-06-21 | 2007-06-13 | 日本先锋公司 | 电子束绘制装置 |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3790755A (en) * | 1961-12-08 | 1974-02-05 | D Silverman | High density information system using multiple strips |
| US3287563A (en) * | 1962-11-07 | 1966-11-22 | Minnesota Mining & Mfg | Spatial coherent reproducing system |
| DE2031515C3 (de) * | 1970-06-25 | 1982-04-15 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zum Auslesen von Informationen |
| DE2038453B2 (de) * | 1970-08-01 | 1972-09-07 | Teldec Telefunken Decca Schallplat ten GmbH, 2000 Hamburg | Verfahren zur aufzeichnung hochfrequenter signale, insbesondere von videosignalen auf signaltraeger |
| US4041530A (en) * | 1971-03-04 | 1977-08-09 | U.S. Philips Corporation | Video disc with phase structure |
| US4041532A (en) * | 1971-04-28 | 1977-08-09 | Decca Limited Of Decca House | Method of recording wide-band signals on a thermoplastic film by use of a beam of electrons |
| US3919465A (en) * | 1974-01-14 | 1975-11-11 | Zenith Radio Corp | Optical system for directly detecting spatially recorded signals |
| US3931459A (en) * | 1974-02-04 | 1976-01-06 | Zenith Radio Corporation | Video disc |
| US4084185A (en) * | 1974-02-12 | 1978-04-11 | U.S. Philips Corporation | Record carrier on which information is stored in an optically readable structure |
| US4094013A (en) * | 1975-05-22 | 1978-06-06 | U.S. Philips Corporation | Optical storage disk system with disk track guide sectors |
| JPS5266405A (en) * | 1975-11-29 | 1977-06-01 | Victor Co Of Japan Ltd | Optical recording system of information recording discs |
| US4161752A (en) * | 1977-06-28 | 1979-07-17 | International Business Machines Corporation | High density video disk having two pit depths |
| NL7810462A (nl) * | 1978-10-19 | 1980-04-22 | Philips Nv | Registratiedrager waarin informatie is aangebracht in een optisch uitleesbare stralingsreflekterende informatiestruktuur |
| FR2481501B1 (fr) * | 1980-04-25 | 1985-09-13 | Philips Nv | Porteur d'enregistrement comportant une structure d'information lisible par voie optique et dispositif pour la lecture d'un tel porteur d'enregistrement |
-
1978
- 1978-10-19 NL NL7810463A patent/NL7810463A/nl not_active Application Discontinuation
-
1979
- 1979-01-26 US US06/006,613 patent/US4930116A/en not_active Expired - Lifetime
- 1979-09-28 FR FR7924157A patent/FR2439522B1/fr not_active Expired
- 1979-10-08 ZA ZA00795363A patent/ZA795363B/xx unknown
- 1979-10-11 CA CA000337415A patent/CA1152643A/fr not_active Expired
- 1979-10-16 IT IT69011/79A patent/IT1119224B/it active
- 1979-10-16 CH CH9318/79A patent/CH651413A5/de not_active IP Right Cessation
- 1979-10-16 BR BR7906659A patent/BR7906659A/pt unknown
- 1979-10-16 AU AU51828/79A patent/AU531730B2/en not_active Ceased
- 1979-10-16 SE SE7908542A patent/SE443890B/sv not_active IP Right Cessation
- 1979-10-16 NZ NZ191856A patent/NZ191856A/xx unknown
- 1979-10-16 DK DK436979A patent/DK149276C/da active
- 1979-10-16 GB GB7935940A patent/GB2034097B/en not_active Expired
- 1979-10-16 SE SE7908542D patent/SE7908542L/xx not_active Application Discontinuation
- 1979-10-17 BE BE0/197686A patent/BE879463A/fr not_active IP Right Cessation
- 1979-10-17 ES ES485094A patent/ES485094A1/es not_active Expired
- 1979-10-17 DE DE19792941943 patent/DE2941943A1/de active Granted
- 1979-10-19 AT AT0683079A patent/AT367228B/de not_active IP Right Cessation
- 1979-10-19 JP JP13428079A patent/JPS5555449A/ja active Granted
-
1982
- 1982-11-05 SG SG567/82A patent/SG56782G/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CA1152643A (fr) | 1983-08-23 |
| DK149276B (da) | 1986-04-14 |
| IT1119224B (it) | 1986-03-03 |
| SE443890B (sv) | 1986-03-10 |
| CH651413A5 (de) | 1985-09-13 |
| US4930116A (en) | 1990-05-29 |
| SE7908542L (sv) | 1980-04-20 |
| IT7969011A0 (it) | 1979-10-16 |
| DK436979A (da) | 1980-04-20 |
| GB2034097B (en) | 1982-09-15 |
| NZ191856A (en) | 1982-11-23 |
| AT367228B (de) | 1982-06-11 |
| DK149276C (da) | 1986-09-22 |
| AU531730B2 (en) | 1983-09-01 |
| ATA683079A (de) | 1981-10-15 |
| BE879463A (fr) | 1980-04-17 |
| NL7810463A (nl) | 1980-04-22 |
| ES485094A1 (es) | 1980-05-16 |
| DE2941943A1 (de) | 1980-04-30 |
| FR2439522B1 (fr) | 1987-06-05 |
| AU5182879A (en) | 1980-05-08 |
| BR7906659A (pt) | 1980-07-15 |
| JPH0127493B2 (fr) | 1989-05-29 |
| GB2034097A (en) | 1980-05-29 |
| FR2439522A1 (fr) | 1980-05-16 |
| DE2941943C2 (fr) | 1991-10-17 |
| JPS5555449A (en) | 1980-04-23 |
| SG56782G (en) | 1983-09-02 |
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