AR211720A1 - APPARATUS TO READ A RECORDING CARRIER - Google Patents
APPARATUS TO READ A RECORDING CARRIERInfo
- Publication number
- AR211720A1 AR211720A1 AR266331A AR26633177A AR211720A1 AR 211720 A1 AR211720 A1 AR 211720A1 AR 266331 A AR266331 A AR 266331A AR 26633177 A AR26633177 A AR 26633177A AR 211720 A1 AR211720 A1 AR 211720A1
- Authority
- AR
- Argentina
- Prior art keywords
- read
- recording carrier
- recording
- carrier
- 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
- G11B7/0901—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 track following only
- G11B7/0906—Differential phase difference systems
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10502—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing characterised by the transducing operation to be executed
- G11B11/1053—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing characterised by the transducing operation to be executed to compensate for the magnetic domain drift or time shift
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10532—Heads
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/1055—Disposition or mounting of transducers relative to record carriers
- G11B11/10576—Disposition or mounting of transducers relative to record carriers with provision for moving the transducers for maintaining alignment or spacing relative to the carrier
-
- 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
- G11B7/0946—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 specially adapted for operation during external perturbations not related to the carrier or servo beam, e.g. vibration
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/7605—Television signal recording on discs or drums
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Optical Recording Or Reproduction (AREA)
- Holo Graphy (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NLAANVRAGE7600842,A NL182258C (en) | 1976-01-28 | 1976-01-28 | DEVICE FOR READING A FLAT RECORD CARRIER WITH AN OPTICALLY READABLE INFORMATION STRUCTURE. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AR211720A1 true AR211720A1 (en) | 1978-02-28 |
Family
ID=19825526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AR266331A AR211720A1 (en) | 1976-01-28 | 1977-01-27 | APPARATUS TO READ A RECORDING CARRIER |
Country Status (21)
| Country | Link |
|---|---|
| JP (1) | JPS5293222A (en) |
| AR (1) | AR211720A1 (en) |
| AT (1) | AT349231B (en) |
| AU (1) | AU505466B2 (en) |
| BE (1) | BE850781A (en) |
| BR (1) | BR7700452A (en) |
| CA (1) | CA1094684A (en) |
| CH (1) | CH613797A5 (en) |
| DE (1) | DE2701539C2 (en) |
| DK (1) | DK146106C (en) |
| ES (1) | ES455360A1 (en) |
| FR (1) | FR2339928A1 (en) |
| GB (1) | GB1534381A (en) |
| IT (1) | IT1074335B (en) |
| MX (1) | MX143161A (en) |
| NL (1) | NL182258C (en) |
| NO (1) | NO149188C (en) |
| NZ (1) | NZ183152A (en) |
| PL (1) | PL107679B1 (en) |
| SE (2) | SE408238B (en) |
| ZA (1) | ZA7711B (en) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6038771B2 (en) * | 1978-06-19 | 1985-09-03 | パイオニア株式会社 | Servo device for optical information reading device |
| JPS573236A (en) * | 1980-06-10 | 1982-01-08 | Olympus Optical Co Ltd | Optical information reader |
| JPS57111837A (en) * | 1980-12-27 | 1982-07-12 | Olympus Optical Co Ltd | Signal detecting system of optical information reader |
| US4564929A (en) * | 1981-11-25 | 1986-01-14 | Hitachi, Ltd. | Information recording and reproducing apparatus with tracking control by sampling |
| JPS5891538A (en) * | 1981-11-25 | 1983-05-31 | Hitachi Ltd | Optical disk track tracking device |
| NL8105347A (en) * | 1981-11-26 | 1983-06-16 | Philips Nv | Apparatus for the optical scanning of a disc-shaped record carrier. |
| NL8105346A (en) * | 1981-11-26 | 1983-06-16 | ||
| JPS58125242A (en) * | 1982-01-22 | 1983-07-26 | Victor Co Of Japan Ltd | Tracking error detecting system of optical information signal reproducing device |
| JPS58150145A (en) * | 1982-03-03 | 1983-09-06 | Toshiba Corp | Tracking control circuit of optical digital disc player |
| JPS58208944A (en) * | 1982-05-31 | 1983-12-05 | Sony Corp | Generating device of optical head control signal |
| JPS5922242A (en) * | 1982-07-26 | 1984-02-04 | Foster Denki Kk | Circuit for detecting optical controlling signal in information reproducing device |
| JPS59110045A (en) * | 1982-12-13 | 1984-06-25 | Sanyo Electric Co Ltd | Optical pickup device |
| JPS59191144A (en) * | 1983-04-14 | 1984-10-30 | Sony Corp | Tracking servo circuit of optical pickup |
| JPS59198540A (en) * | 1983-04-26 | 1984-11-10 | Asahi Optical Co Ltd | Tracking servo circuit of optical disc player |
| US4740940A (en) * | 1985-03-11 | 1988-04-26 | Matsushita Electric Industrial Co., Ltd. | Optical information read apparatus |
| JPS61248237A (en) * | 1985-04-25 | 1986-11-05 | Sankyo Seiki Mfg Co Ltd | Detection of tracking error signal |
| JP2796592B2 (en) * | 1985-10-17 | 1998-09-10 | セイコーインスツルメンツ株式会社 | Tracking error signal generation circuit |
| JP2824573B2 (en) * | 1985-11-08 | 1998-11-11 | セイコーインスツルメンツ株式会社 | Tracking error signal generation circuit |
| JP2906144B2 (en) * | 1986-04-09 | 1999-06-14 | セイコーインスツルメンツ株式会社 | Optical head control device |
| US4958245A (en) * | 1988-04-07 | 1990-09-18 | Insite Peripherals, Inc. | Apparatus and method for optical servo control with media having information storage and servo control regions of different reflectivities |
| CN1278312C (en) | 1994-06-07 | 2006-10-04 | 松下电器产业株式会社 | Optical information recording media and method, and optical reproducing equipment therewith |
| TW364992B (en) * | 1996-04-25 | 1999-07-21 | Toshiba Corp | Optic data regeneration apparatus and control method thereof |
| DE19723542A1 (en) | 1997-06-05 | 1998-12-10 | Thomson Brandt Gmbh | Device for reading and / or writing to optical recording media |
| JP3544847B2 (en) | 1998-01-16 | 2004-07-21 | 三菱電機株式会社 | Optical information reproducing method and apparatus |
| CN101536096B (en) | 2006-11-16 | 2011-11-16 | 松下电器产业株式会社 | Optical information reproducing device tracking apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3381086A (en) * | 1962-08-16 | 1968-04-30 | Minnesota Mining & Mfg | Reproduction of television signals from photographic disc recordings |
| FR2235354A1 (en) * | 1973-06-29 | 1975-01-24 | Thomson Csf | Photoelectric optical test sensor - measures displacement of a diffraction screen with constant spacing in the test sensor plane |
-
1976
- 1976-01-28 NL NLAANVRAGE7600842,A patent/NL182258C/en not_active IP Right Cessation
-
1977
- 1977-01-03 ZA ZA00770011A patent/ZA7711B/en unknown
- 1977-01-15 DE DE2701539A patent/DE2701539C2/en not_active Expired
- 1977-01-24 MX MX167802A patent/MX143161A/en unknown
- 1977-01-25 NO NO770240A patent/NO149188C/en unknown
- 1977-01-25 IT IT19598/77A patent/IT1074335B/en active
- 1977-01-25 SE SE7700725A patent/SE408238B/en not_active IP Right Cessation
- 1977-01-25 BR BR7700452A patent/BR7700452A/en unknown
- 1977-01-25 CH CH89377A patent/CH613797A5/en not_active IP Right Cessation
- 1977-01-25 NZ NZ183152A patent/NZ183152A/en unknown
- 1977-01-25 AU AU21616/77A patent/AU505466B2/en not_active Expired
- 1977-01-25 SE SE7700725D patent/SE7700725L/en not_active Application Discontinuation
- 1977-01-25 PL PL1977195541A patent/PL107679B1/en unknown
- 1977-01-25 GB GB2943/77A patent/GB1534381A/en not_active Expired
- 1977-01-25 DK DK30777A patent/DK146106C/en not_active IP Right Cessation
- 1977-01-26 BE BE174406A patent/BE850781A/en unknown
- 1977-01-26 JP JP686777A patent/JPS5293222A/en active Granted
- 1977-01-26 ES ES455360A patent/ES455360A1/en not_active Expired
- 1977-01-26 AT AT46077A patent/AT349231B/en not_active IP Right Cessation
- 1977-01-26 CA CA270,465A patent/CA1094684A/en not_active Expired
- 1977-01-27 AR AR266331A patent/AR211720A1/en active
- 1977-01-27 FR FR7702258A patent/FR2339928A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| BR7700452A (en) | 1977-10-04 |
| PL107679B1 (en) | 1980-02-29 |
| FR2339928A1 (en) | 1977-08-26 |
| NL7600842A (en) | 1977-08-01 |
| DK146106C (en) | 1983-11-21 |
| FR2339928B1 (en) | 1980-03-21 |
| AT349231B (en) | 1979-03-26 |
| SE7700725L (en) | 1977-07-29 |
| NO149188C (en) | 1984-02-29 |
| CH613797A5 (en) | 1979-10-15 |
| NL182258C (en) | 1988-02-01 |
| DE2701539A1 (en) | 1977-08-04 |
| DE2701539C2 (en) | 1981-11-12 |
| BE850781A (en) | 1977-07-26 |
| ES455360A1 (en) | 1978-01-01 |
| JPS5293222A (en) | 1977-08-05 |
| NO770240L (en) | 1977-07-29 |
| JPS5630610B2 (en) | 1981-07-16 |
| NL182258B (en) | 1987-09-01 |
| AU2161677A (en) | 1978-08-03 |
| CA1094684A (en) | 1981-01-27 |
| NO149188B (en) | 1983-11-21 |
| GB1534381A (en) | 1978-12-06 |
| NZ183152A (en) | 1980-04-28 |
| SE408238B (en) | 1979-05-21 |
| ZA7711B (en) | 1978-08-30 |
| ATA46077A (en) | 1978-08-15 |
| DK146106B (en) | 1983-06-27 |
| DK30777A (en) | 1977-07-29 |
| MX143161A (en) | 1981-03-26 |
| IT1074335B (en) | 1985-04-20 |
| AU505466B2 (en) | 1979-11-22 |
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