DE3674015D1 - Wiedergabe von optisch aufgezeichneten signalen. - Google Patents
Wiedergabe von optisch aufgezeichneten signalen.Info
- Publication number
- DE3674015D1 DE3674015D1 DE8686101363T DE3674015T DE3674015D1 DE 3674015 D1 DE3674015 D1 DE 3674015D1 DE 8686101363 T DE8686101363 T DE 8686101363T DE 3674015 T DE3674015 T DE 3674015T DE 3674015 D1 DE3674015 D1 DE 3674015D1
- Authority
- DE
- Germany
- Prior art keywords
- playback
- recorded signals
- optically recorded
- optically
- signals
- 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
- G11B7/004—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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
-
- 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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60023869A JPH0792916B2 (ja) | 1985-02-08 | 1985-02-08 | 光学記録信号再生方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3674015D1 true DE3674015D1 (de) | 1990-10-18 |
Family
ID=12122447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8686101363T Expired - Lifetime DE3674015D1 (de) | 1985-02-08 | 1986-02-03 | Wiedergabe von optisch aufgezeichneten signalen. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4969142A (de) |
EP (1) | EP0190698B1 (de) |
JP (1) | JPH0792916B2 (de) |
CN (1) | CN1010441B (de) |
DE (1) | DE3674015D1 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5113386A (en) * | 1989-10-30 | 1992-05-12 | Eastman Kodak Company | Focus and tracking error detector apparatus for optical and magneto-optical information storage systems |
US5712840A (en) * | 1990-03-16 | 1998-01-27 | Canon Kabushiki Kaisha | Optical information recording/reproduciing apparatus having two-division detectors |
DE69126160T2 (de) * | 1990-03-16 | 1997-10-09 | Canon Kk | Aufzeichnungs-/Wiedergabegerät für optische Information |
US5247510A (en) * | 1990-06-29 | 1993-09-21 | Digital Equipment Corporation | Increasing storage density of optical data media by detecting a selected portion of a light spot image corresponding to a single domain |
FR2679059B1 (fr) * | 1991-07-09 | 1993-09-24 | Thomson Csf | Systeme de lecture de disque optique. |
JPH07326066A (ja) * | 1994-05-31 | 1995-12-12 | Asahi Optical Co Ltd | 光学式情報記録再生装置 |
US5757763A (en) * | 1994-07-12 | 1998-05-26 | Massachusetts Institute Of Technology | Optical information storage via amplitude modulation |
JP3707812B2 (ja) * | 1994-09-27 | 2005-10-19 | ソニー株式会社 | 光記録方法、光記録装置及び光記録媒体 |
WO1997001167A1 (en) * | 1995-06-21 | 1997-01-09 | Massachusetts Institute Of Technology | Apparatus and method for accessing data on multilayered optical media |
KR0165425B1 (ko) * | 1995-08-18 | 1999-03-20 | 김광호 | 고밀도 기록재생을 위한 광픽업 |
KR100200868B1 (ko) * | 1995-12-22 | 1999-06-15 | 윤종용 | 광픽업 장치 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7803517A (nl) * | 1978-04-03 | 1979-10-05 | Philips Nv | Registratiedrager met een optisch uitleesbare fase- struktuur en inrichting voor het uitlezen. |
NL186353C (nl) * | 1979-06-12 | 1990-11-01 | Philips Nv | Inrichting voor het afbeelden van een maskerpatroon op een substraat voorzien van een opto-elektronisch detektiestelsel voor het bepalen van een afwijking tussen het beeldvlak van een projektielenzenstelsel en het substraatvlak. |
US4349901A (en) * | 1980-06-20 | 1982-09-14 | Eastman Kodak Company | Apparatus and method for reading optical discs |
JPS57105828A (en) * | 1980-12-19 | 1982-07-01 | Matsushita Electric Ind Co Ltd | Optical disk recording and reproducing system |
US4462095A (en) * | 1982-03-19 | 1984-07-24 | Magnetic Peripherals Inc. | Moving diffraction grating for an information track centering system for optical recording |
JPS5936335A (ja) * | 1982-08-24 | 1984-02-28 | Matsushita Electric Ind Co Ltd | 光デイスク記録再生方法および光デイスク |
JPS5958637A (ja) * | 1982-09-28 | 1984-04-04 | Sony Corp | 光学式再生装置 |
JPS59139152A (ja) * | 1983-01-28 | 1984-08-09 | Canon Inc | 光情報再生方法および装置 |
-
1985
- 1985-02-08 JP JP60023869A patent/JPH0792916B2/ja not_active Expired - Lifetime
-
1986
- 1986-01-30 CN CN86100753A patent/CN1010441B/zh not_active Expired
- 1986-02-03 DE DE8686101363T patent/DE3674015D1/de not_active Expired - Lifetime
- 1986-02-03 EP EP86101363A patent/EP0190698B1/de not_active Expired - Lifetime
-
1989
- 1989-05-12 US US07/352,651 patent/US4969142A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US4969142A (en) | 1990-11-06 |
EP0190698A1 (de) | 1986-08-13 |
EP0190698B1 (de) | 1990-09-12 |
JPS61182635A (ja) | 1986-08-15 |
CN86100753A (zh) | 1986-08-27 |
JPH0792916B2 (ja) | 1995-10-09 |
CN1010441B (zh) | 1990-11-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8320 | Willingness to grant licences declared (paragraph 23) | ||
8339 | Ceased/non-payment of the annual fee |