DE3777863D1 - Optischer aufzeichnungstraeger. - Google Patents
Optischer aufzeichnungstraeger.Info
- Publication number
- DE3777863D1 DE3777863D1 DE8787303015T DE3777863T DE3777863D1 DE 3777863 D1 DE3777863 D1 DE 3777863D1 DE 8787303015 T DE8787303015 T DE 8787303015T DE 3777863 T DE3777863 T DE 3777863T DE 3777863 D1 DE3777863 D1 DE 3777863D1
- Authority
- DE
- Germany
- Prior art keywords
- record carrier
- optical record
- optical
- carrier
- 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 - Lifetime
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
-
- 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
-
- 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
- G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
- G11B7/0033—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with cards or other card-like flat carriers, e.g. flat sheets of optical film
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61082929A JPS62239343A (ja) | 1986-04-09 | 1986-04-09 | 光記録媒体 |
JP8292886A JPS62239333A (ja) | 1986-04-09 | 1986-04-09 | トラツキング信号検出方法 |
JP61187854A JPS6344322A (ja) | 1986-08-12 | 1986-08-12 | カード状光学的情報記録媒体 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3777863D1 true DE3777863D1 (de) | 1992-05-07 |
Family
ID=27304050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8787303015T Expired - Lifetime DE3777863D1 (de) | 1986-04-09 | 1987-04-07 | Optischer aufzeichnungstraeger. |
Country Status (4)
Country | Link |
---|---|
US (1) | US5070490A (de) |
EP (1) | EP0241267B2 (de) |
CA (1) | CA1295734C (de) |
DE (1) | DE3777863D1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE68923833T2 (de) * | 1988-06-20 | 1996-06-13 | Mitsubishi Electric Corp | Optischer Kopf mit Kippkorrekturservomechanismus. |
JPH04274058A (ja) * | 1991-02-28 | 1992-09-30 | Olympus Optical Co Ltd | 情報記録再生装置 |
JPH05101431A (ja) * | 1991-10-07 | 1993-04-23 | Sony Corp | 光デイスク再生装置 |
US5932865A (en) * | 1996-12-09 | 1999-08-03 | Drexler Technology Corporation | Anti-counterfeit validation method for electronic cash cards employing an optical memory stripe |
US6199761B1 (en) | 1996-12-09 | 2001-03-13 | Drexler Technology Corporation | Validation method for electronic cash cards and digital identity cards utilizing optical data storage |
US20040182933A1 (en) * | 2003-03-17 | 2004-09-23 | Kai-Yuan Tien | Light source structure without moving parts for a laser barcode scanner |
WO2015066216A1 (en) * | 2013-10-29 | 2015-05-07 | Optical Archive Inc. | Array reader and array reading of optical media |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5753831A (en) * | 1980-09-12 | 1982-03-31 | Olympus Optical Co Ltd | Method and device for reproduction of optical information |
EP0072854A4 (de) * | 1981-02-27 | 1986-01-14 | Drexler Tech | Bankkarte für automatische schaltermaschinen und dergleichen. |
JPS5888838A (ja) * | 1981-11-19 | 1983-05-27 | Sony Corp | 光学式信号記録方式 |
US4642803A (en) * | 1982-08-09 | 1987-02-10 | Drexler Technology Corporation | Optical data retrieval system for multi-characteristic reflective data storage media |
JPS59207039A (ja) * | 1983-05-07 | 1984-11-24 | Kyodo Printing Co Ltd | 光記録カ−ド |
US4703408A (en) * | 1983-11-28 | 1987-10-27 | Hitachi, Ltd. | Apparatus and record carrier for optically writing information |
JPS60197953A (ja) * | 1984-03-21 | 1985-10-07 | Hitachi Ltd | 情報記録装置 |
US4598393A (en) * | 1984-04-06 | 1986-07-01 | Drexler Technology Corporation | Three-beam optical servo tracking system with two-track parallel readout |
DE3570305D1 (en) * | 1984-06-01 | 1989-06-22 | Matsushita Electric Ind Co Ltd | Optical disk exclusively used for reproduction |
JPS60261043A (ja) * | 1984-06-07 | 1985-12-24 | Victor Co Of Japan Ltd | 情報記録媒体円盤 |
EP0166614A3 (en) * | 1984-06-29 | 1987-12-23 | Minnesota Mining And Manufacturing Company | Encoated optical recording medium |
JPS61151792A (ja) * | 1984-12-26 | 1986-07-10 | Canon Inc | 光学的情報記録媒体 |
US4787075A (en) * | 1984-12-26 | 1988-11-22 | Canon Kabushiki Kaisha | Optical information recording medium and apparatus for recording/reproducing information using the same |
US4652730A (en) * | 1985-01-03 | 1987-03-24 | Honeywell Information Systems Inc. | Method and apparatus for skew compensation in an optical reader |
JPS61192075A (ja) * | 1985-02-20 | 1986-08-26 | Canon Inc | 情報記録担体およびその再生方法 |
CA1294705C (en) * | 1986-04-09 | 1992-01-21 | Wataru Sakagami | Optical information recording medium and recording-reproducing apparatus |
US4910725A (en) * | 1986-04-23 | 1990-03-20 | Drexler Technology Corporation | Optical recording method for data cards |
US4730293A (en) * | 1986-09-15 | 1988-03-08 | Drexler Technology Corporation | Dual beam optical data system |
-
1987
- 1987-04-03 CA CA000533847A patent/CA1295734C/en not_active Expired - Lifetime
- 1987-04-07 EP EP87303015A patent/EP0241267B2/de not_active Expired - Lifetime
- 1987-04-07 DE DE8787303015T patent/DE3777863D1/de not_active Expired - Lifetime
-
1990
- 1990-02-13 US US07/479,205 patent/US5070490A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0241267B2 (de) | 1996-03-13 |
CA1295734C (en) | 1992-02-11 |
EP0241267B1 (de) | 1992-04-01 |
EP0241267A1 (de) | 1987-10-14 |
US5070490A (en) | 1991-12-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8363 | Opposition against the patent | ||
8366 | Restricted maintained after opposition proceedings |