DK337384A - Laeseanordning til optisk aftastning af paa et bevaeget pladeformet baereorgan optegnede informationer - Google Patents
Laeseanordning til optisk aftastning af paa et bevaeget pladeformet baereorgan optegnede informationer Download PDFInfo
- Publication number
- DK337384A DK337384A DK337384A DK337384A DK337384A DK 337384 A DK337384 A DK 337384A DK 337384 A DK337384 A DK 337384A DK 337384 A DK337384 A DK 337384A DK 337384 A DK337384 A DK 337384A
- Authority
- DK
- Denmark
- Prior art keywords
- reading device
- information recorded
- optical sensing
- platform carrier
- moved platform
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title 1
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
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/0937—Piezoelectric actuators
-
- 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
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/0929—Electromechanical actuators for lens positioning for tracking only
-
- 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
- G11B7/094—Methods and circuits for servo offset compensation
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3324861A DE3324861C2 (de) | 1983-07-09 | 1983-07-09 | Lesevorrichtung zum optischen Abtasten von auf einem bewegten plattenförmigen Träger aufgezeichneten Informationen |
| DE3324861 | 1983-07-09 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| DK337384D0 DK337384D0 (da) | 1984-07-09 |
| DK337384A true DK337384A (da) | 1985-01-10 |
| DK157956B DK157956B (da) | 1990-03-05 |
| DK157956C DK157956C (da) | 1990-08-13 |
Family
ID=6203615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK337384A DK157956C (da) | 1983-07-09 | 1984-07-09 | Laeseanordning til optisk aftastning af paa et bevaeget pladeformet baereorgan optegnede informationer |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4718050A (da) |
| EP (2) | EP0249653B1 (da) |
| JP (2) | JPS6063734A (da) |
| DE (1) | DE3324861C2 (da) |
| DK (1) | DK157956C (da) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6095735A (ja) * | 1983-10-31 | 1985-05-29 | Hitachi Ltd | 対物レンズ駆動装置 |
| DE3500671A1 (de) * | 1985-01-11 | 1986-07-17 | Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen | Lesevorrichtung zum optischen abtasten von auf einem beweglichen plattenfoermigen traeger aufgezeichneten informationen |
| JPH01201831A (ja) * | 1988-02-05 | 1989-08-14 | Olympus Optical Co Ltd | 光学的情報記録再生装置 |
| US5220543A (en) * | 1989-02-14 | 1993-06-15 | Victor Company Of Japan, Ltd. | Compact optical disc recording/reproducing system |
| JP2593941B2 (ja) * | 1989-08-19 | 1997-03-26 | 富士通株式会社 | 光ディスク装置のアクチュエータオフセット除去装置 |
| DE4135908A1 (de) * | 1991-10-31 | 1993-05-06 | Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen, De | Aktuatoranordnung |
| US6009061A (en) | 1994-08-25 | 1999-12-28 | Discovision Associates | Cartridge-loading apparatus with improved base plate and cartridge receiver latch |
| US5724331A (en) | 1994-08-25 | 1998-03-03 | Discovision Associates | Disk drive system having improved cartridge-loading apparatus including direct drive gear train and methods for making and operating same |
| KR0179258B1 (ko) * | 1996-01-05 | 1999-04-15 | 구자홍 | 광디스크 기록재생장치 |
| US6185030B1 (en) | 1998-03-20 | 2001-02-06 | James W. Overbeck | Wide field of view and high speed scanning microscopy |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4282598A (en) * | 1972-10-24 | 1981-08-04 | Discovision Associates | Video disc read back scanner |
| SE7405076L (sv) * | 1974-04-16 | 1975-10-17 | Erik Gerhard Natanel Westberg | Optiskt massdataminne. |
| DE2611617C2 (de) * | 1976-03-19 | 1983-10-20 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Elektrisch gesteuerte Einstellvorrichtung für einen digital und analog ablenkgesteuerten Lichtstrahl |
| US4302830A (en) * | 1978-05-10 | 1981-11-24 | Olympus Optical Company Ltd. | Optical information reading-out apparatus |
| NL7808638A (nl) * | 1978-08-22 | 1980-02-26 | Philips Nv | Inrichting voor het uitlezen van een schijfvormige re- gistratiedrager. |
| NL7810386A (nl) * | 1978-10-17 | 1980-04-21 | Philips Nv | Optische leesinrichting voor het uitlezen van een schijfvormige registratiedrager. |
| NL7812111A (nl) * | 1978-12-13 | 1980-06-17 | Philips Nv | Inrichting voor het optisch uitlezen van een schijf- vormige registratiedrager, in het bijzonder het snel opzoeken van een gewenst programmagedeelte. |
| JPS55146634A (en) * | 1979-04-26 | 1980-11-15 | Olympus Optical Co Ltd | Objective lens driver |
| JPS55153138A (en) * | 1979-05-14 | 1980-11-28 | Mitsubishi Electric Corp | Optical pickup unit |
| JPS6030576B2 (ja) * | 1979-08-21 | 1985-07-17 | エヌエスケ−・ワ−ナ−株式会社 | シ−トベルトリトラクタの巻取力軽減機構 |
| JPS56170537U (da) | 1980-05-16 | 1981-12-16 | ||
| NL8003305A (nl) * | 1980-06-06 | 1982-01-04 | Philips Nv | Inrichting voor het opzoeken van een gewenst informa- tiespoor. |
| JPS6215864Y2 (da) * | 1980-08-04 | 1987-04-22 | ||
| NL8103305A (nl) * | 1981-07-10 | 1983-02-01 | Philips Nv | Opto-elektronische inrichting voor het met een stralingsbundel inschrijven en/of uitlezen van registratiesporen. |
| NL8105347A (nl) * | 1981-11-26 | 1983-06-16 | Philips Nv | Inrichting voor het optisch aftasten van een schijfvormige registratiedrager. |
| JPS58166567A (ja) * | 1982-03-26 | 1983-10-01 | Matsushita Electric Ind Co Ltd | 情報トラックの検索装置 |
-
1983
- 1983-07-09 DE DE3324861A patent/DE3324861C2/de not_active Expired
-
1984
- 1984-06-13 EP EP86113775A patent/EP0249653B1/de not_active Expired - Lifetime
- 1984-06-13 EP EP84106715A patent/EP0134428B1/de not_active Expired
- 1984-07-09 US US06/628,770 patent/US4718050A/en not_active Expired - Fee Related
- 1984-07-09 DK DK337384A patent/DK157956C/da not_active IP Right Cessation
- 1984-07-09 JP JP59140775A patent/JPS6063734A/ja active Pending
-
1992
- 1992-06-05 JP JP4145508A patent/JPH0831214B2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0134428B1 (de) | 1988-01-27 |
| DK157956B (da) | 1990-03-05 |
| JPH0644597A (ja) | 1994-02-18 |
| US4718050A (en) | 1988-01-05 |
| EP0134428A1 (de) | 1985-03-20 |
| JPS6063734A (ja) | 1985-04-12 |
| DE3324861A1 (de) | 1985-01-17 |
| DK157956C (da) | 1990-08-13 |
| EP0249653A3 (en) | 1988-01-07 |
| JPH0831214B2 (ja) | 1996-03-27 |
| DK337384D0 (da) | 1984-07-09 |
| EP0249653B1 (de) | 1991-01-09 |
| EP0249653A2 (de) | 1987-12-23 |
| DE3324861C2 (de) | 1986-02-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |