ES2039526T3 - Procedimiento para un dispositivo de exploracion optica. - Google Patents
Procedimiento para un dispositivo de exploracion optica.Info
- Publication number
- ES2039526T3 ES2039526T3 ES198888113301T ES88113301T ES2039526T3 ES 2039526 T3 ES2039526 T3 ES 2039526T3 ES 198888113301 T ES198888113301 T ES 198888113301T ES 88113301 T ES88113301 T ES 88113301T ES 2039526 T3 ES2039526 T3 ES 2039526T3
- Authority
- ES
- Spain
- Prior art keywords
- laser
- input
- output
- multiplier
- summation amplifier
- 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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
-
- 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
- G11B7/0908—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 for focusing only
- G11B7/0917—Focus-error methods other than those covered by G11B7/0909 - G11B7/0916
-
- 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
- G11B7/0908—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 for focusing only
Landscapes
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
- Sampling And Sample Adjustment (AREA)
- Automatic Focus Adjustment (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Semiconductor Lasers (AREA)
Abstract
EN UN DISPOSITIVO PALPADOR OPTICO, EN EL CUAL UN LASER (1) SE ENFOCA SOBRE UN SOPORTE REGISTRADOR (5) OPTICO ES PRECISO AJUSTAR LOS LASERS (1) Y LOS DETECTORES DE FOCOS (11). LA PRIMERA ENTRADA DE UNOS INTEGRADORES (8) SE CONECTA CON LA SEGUNDA ENTRADA DE LOS AMPLIFICADORES DE SUMA (10). LA SALIDA DE LOS AMPLIFICADORES (10) DE SUMA SE CONECTA CON EL ELEMENTO (4) DEL MANDO DE UNOS CIRCUITOS REGULADORES DE UN FOCO. EL VALOR REAL DE LOS CIRCUITOS REGULADORES DEL FOCO SE CONDUCE A LA TERCERA DE LOS AMPLIFICADORES DE SUMA (10). PARA SIMPLIFICAR EL AJUSTE, SE MANTIENE CONSTANTE LA POTENCIA DE LUZ DE LOS LASERS (1) Y LA SEGUNDA ENTRADA DE LOS MULTIPLICADORES (8) CONDUCE LA SEÑAL DE REGULACION DE LOS LASERS (1). LA SEÑAL DE SALIDA DE LOS DIODOS MONITORES DE LASER (1). LUEGO -CD, LUEGO DE PLACA DE VIDEO, LUEGO DRAW-DISCO QUE SON APARATOS MAGNETO-OPTICOS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19873732903 DE3732903A1 (de) | 1987-09-30 | 1987-09-30 | Optische abtastvorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2039526T3 true ES2039526T3 (es) | 1993-10-01 |
Family
ID=6337191
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES198888113301T Expired - Lifetime ES2039526T3 (es) | 1987-09-30 | 1988-08-17 | Procedimiento para un dispositivo de exploracion optica. |
Country Status (10)
Country | Link |
---|---|
US (1) | US5016233A (es) |
EP (1) | EP0313744B1 (es) |
JP (1) | JPH0289234A (es) |
KR (1) | KR890005679A (es) |
AT (1) | ATE86775T1 (es) |
DE (2) | DE3732903A1 (es) |
DK (1) | DK548688A (es) |
ES (1) | ES2039526T3 (es) |
HU (1) | HUT63009A (es) |
MY (1) | MY103405A (es) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03245116A (ja) * | 1990-02-23 | 1991-10-31 | Toshiba Corp | 光学装置及びこの光学装置が組込まれる画像形成装置或いは画像情報読取装置 |
US5402280A (en) * | 1992-05-11 | 1995-03-28 | Quantum Corp. | Method and apparatus for runout correction due to disk slip or spindle imbalance |
CA2168491A1 (en) * | 1995-02-01 | 1996-08-02 | Alexei Bogdan | Data reading device using semiconductor laser |
US5754515A (en) * | 1996-04-01 | 1998-05-19 | International Business Machines Corporation | Active alignment method for multilayer optical disk storage |
US6222813B1 (en) | 1998-02-13 | 2001-04-24 | International Business Machines Corporation | System for creating, reading and writing on rotatable information storage media, an apparatus for controlling vertical laser alignment |
US6081489A (en) * | 1998-02-13 | 2000-06-27 | International Business Machines Corporation | System for creating, reading and writing on rotatable information storage media, an apparatus for performing both read and write operations |
US6088309A (en) * | 1998-02-13 | 2000-07-11 | International Business Machines Corporation | System for creating, reading and writing on rotatable information storage media, a method for controlling vertical laser alignment |
US6088306A (en) * | 1998-02-13 | 2000-07-11 | International Business Machines Corporation | System for creating, reading and writing on rotatable information storage media, an apparatus for combined writing and reading operations |
US6081487A (en) * | 1998-02-13 | 2000-06-27 | International Business Machines Corporation | System for creating, reading and writing on rotatable information storage media, an apparatus for controlling laser positioning |
US5872723A (en) * | 1998-02-13 | 1999-02-16 | International Business Machines Corporation | In a system for creating, reading and writing on rotatable information storage media an apparatus for determining drive mechanism aging characteristics |
US5892739A (en) * | 1998-02-13 | 1999-04-06 | International Business Machines Corporation | In system for creating reading and writing on rotatable information storage media, an apparatus for multilayer source positioning using the laser source as a detector |
US6097677A (en) * | 1998-02-13 | 2000-08-01 | International Business Machines Corporation | System for creating, reading and writing on rotatable information storage media, a method for combined writing and reading operations |
US6034929A (en) * | 1998-02-13 | 2000-03-07 | International Business Machines Corporation | System for creating, reading and writing on rotatable information storage media, a method for multi-layer laser source positioning |
US6232045B1 (en) | 1998-02-13 | 2001-05-15 | International Business Machines Corporation | System for creating, reading and writing on rotatable information storage media, a method for producing a recording blank |
US6118740A (en) * | 1998-02-13 | 2000-09-12 | International Business Machines Corporation | System for creating, reading and writing on rotatable information storage media, a method for writing closely spaced information tracks |
US6111830A (en) * | 1998-02-13 | 2000-08-29 | International Business Machines Corporation | System for creating, reading and writing on rotatable information storage media, an apparatus for determining linear and/or angular velocity |
US6128262A (en) * | 1998-02-13 | 2000-10-03 | International Business Machines Corporation | System for creating, reading and writing on rotatable information storage media, a method for customizing said media with timing information |
US6108282A (en) * | 1998-02-13 | 2000-08-22 | International Business Machines Corporation | System for creating, reading and writing on rotatable information storage media, an apparatus for multilayer laser source positioning |
US6097681A (en) * | 1998-02-13 | 2000-08-01 | International Business Machines Corporation | System for creating, reading and writing on rotatable information storage media, an apparatus for determining angular position, θ |
US6046970A (en) * | 1998-02-13 | 2000-04-04 | International Business Machines Corporation | System for creating, reading and writing on rotatable storage media, an apparatus for determining laser aging characteristics |
US6049512A (en) * | 1998-02-13 | 2000-04-11 | International Business Machines Corporation | In a system for creating, reading and writing on rotatable information storage media, an apparatus for two-sided writing |
US6088308A (en) * | 1998-02-13 | 2000-07-11 | International Business Machines Corporation | System for creating, reading and writing on rotatable information storage media, a tracking circuit for providing positioning information |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2952191A (en) * | 1959-01-27 | 1960-09-13 | Kent D Cornelius | Multiple cutter |
FR2251876B1 (es) * | 1973-11-16 | 1977-09-23 | Thomson Brandt | |
US4190775A (en) * | 1975-02-18 | 1980-02-26 | Agency Of Industrial Science & Technology | Optical memory playback apparatus |
US4150402A (en) * | 1977-04-07 | 1979-04-17 | Xerox Corporation | Method and apparatus for reducing the effect of laser noise in a scanning laser read system |
JPS5483848A (en) * | 1977-12-16 | 1979-07-04 | Mitsubishi Electric Corp | Automatic focusing device |
JPS6030015B2 (ja) * | 1979-05-09 | 1985-07-13 | 株式会社日立製作所 | 光ビ−ム位置制御装置 |
US4358774A (en) * | 1980-07-14 | 1982-11-09 | Discovision Associates | Apparatus and method for controlling focus in a recording system |
JPS57120238A (en) * | 1981-01-16 | 1982-07-27 | Matsushita Electric Ind Co Ltd | Reproducing device |
US4607157A (en) * | 1984-02-09 | 1986-08-19 | Xerox Corporation | Automatic focus offset correction system |
JPS61175938A (ja) * | 1985-01-29 | 1986-08-07 | Sony Corp | 光デイスク記録再生装置 |
US4870635A (en) * | 1986-09-19 | 1989-09-26 | International Business Machines Corporation | Precision measurement and positioning system for disk storage system |
-
1987
- 1987-09-30 DE DE19873732903 patent/DE3732903A1/de not_active Withdrawn
-
1988
- 1988-08-17 AT AT88113301T patent/ATE86775T1/de active
- 1988-08-17 ES ES198888113301T patent/ES2039526T3/es not_active Expired - Lifetime
- 1988-08-17 EP EP88113301A patent/EP0313744B1/de not_active Expired - Lifetime
- 1988-08-17 DE DE8888113301T patent/DE3879092D1/de not_active Expired - Lifetime
- 1988-09-28 US US07/250,726 patent/US5016233A/en not_active Expired - Lifetime
- 1988-09-28 MY MYPI88001085A patent/MY103405A/en unknown
- 1988-09-30 KR KR1019880012763A patent/KR890005679A/ko not_active Application Discontinuation
- 1988-09-30 HU HU885105A patent/HUT63009A/hu unknown
- 1988-09-30 DK DK548688A patent/DK548688A/da not_active Application Discontinuation
- 1988-09-30 JP JP63244647A patent/JPH0289234A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
JPH0289234A (ja) | 1990-03-29 |
US5016233A (en) | 1991-05-14 |
EP0313744B1 (de) | 1993-03-10 |
DE3732903A1 (de) | 1989-04-13 |
HUT63009A (en) | 1993-06-28 |
KR890005679A (ko) | 1989-05-16 |
EP0313744A1 (de) | 1989-05-03 |
DK548688A (da) | 1989-03-31 |
ATE86775T1 (de) | 1993-03-15 |
MY103405A (en) | 1993-06-30 |
DK548688D0 (da) | 1988-09-30 |
DE3879092D1 (de) | 1993-04-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES2039526T3 (es) | Procedimiento para un dispositivo de exploracion optica. | |
JPS54143109A (en) | Optical information device | |
KR890005678A (ko) | 광학스캐닝장치 | |
MY131532A (en) | Recording medium having track formed of land portion and groove portion, and reproducing apparatus therefor | |
EP0326354A3 (en) | Apparatus for reading information out of an optical recording medium | |
JPS54128303A (en) | Optical reproducing device of information recording medium disc | |
US5007038A (en) | Method and apparatus for producing an accurate error signal in an optical recording medium driver | |
YU177184A (en) | Device for information reproduction from optical readable information carrier | |
MY106732A (en) | Optical recording and/or reproducing apparatus. | |
CA2100636A1 (en) | Optical information reproducing device | |
DK544688D0 (da) | Apparat til gengivelse af data | |
US4794244A (en) | Method and apparatus for detecting focussing position deviation of read/write apparatus in an optical recording medium | |
KR920702529A (ko) | 자기 광학 기록 및 재생장치 | |
JPS54103307A (en) | Optical recorder-reproducer | |
HK42796A (en) | Apparatus for the reproduction of data | |
JPS5883342A (ja) | 光学式情報読取装置におけるレ−ザ出力制御装置 | |
JPS5644129A (en) | Optical recording and reproducing device | |
JPS5755568A (en) | Recording and reproducing device | |
KR890005684A (ko) | 데이타 재생장치 | |
ES2125934T3 (es) | Reduccion de componentes de ruido de una señal de datos y dispositivo de lectura optica. | |
JPS5730126A (en) | Optical reproducing device | |
HU9201300D0 (en) | Regulating circuit for focusing | |
KR0152865B1 (ko) | 광픽업 장치의 레이저 빔 출력조정장치 및 방법 | |
JPS56156814A (en) | Synchronizing system for optical printer | |
JPS6437736A (en) | Semiconductor laser driving device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
Ref document number: 313744 Country of ref document: ES |