CA1094684A - Apparatus for reading a record carrier with an optically readable information structure - Google Patents
Apparatus for reading a record carrier with an optically readable information structureInfo
- Publication number
- CA1094684A CA1094684A CA270,465A CA270465A CA1094684A CA 1094684 A CA1094684 A CA 1094684A CA 270465 A CA270465 A CA 270465A CA 1094684 A CA1094684 A CA 1094684A
- Authority
- CA
- Canada
- Prior art keywords
- circuit
- detectors
- read
- axis
- information
- 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
Links
- 230000005855 radiation Effects 0.000 claims description 23
- 238000001514 detection method Methods 0.000 claims description 16
- 230000003287 optical effect Effects 0.000 claims description 9
- 229920000136 polysorbate Polymers 0.000 claims description 3
- 101150118300 cos gene Proteins 0.000 description 36
- 210000001747 pupil Anatomy 0.000 description 20
- 230000006870 function Effects 0.000 description 11
- 230000004044 response Effects 0.000 description 4
- 239000000969 carrier Substances 0.000 description 3
- 230000014509 gene expression Effects 0.000 description 3
- 101100234408 Danio rerio kif7 gene Proteins 0.000 description 2
- 101100221620 Drosophila melanogaster cos gene Proteins 0.000 description 2
- 101100398237 Xenopus tropicalis kif11 gene Proteins 0.000 description 2
- 108010068032 caltractin Proteins 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 238000011896 sensitive detection Methods 0.000 description 2
- 102220543152 Bis(5'-adenosyl)-triphosphatase_I10W_mutation Human genes 0.000 description 1
- 101150087426 Gnal gene Proteins 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- CPBQJMYROZQQJC-UHFFFAOYSA-N helium neon Chemical compound [He].[Ne] CPBQJMYROZQQJC-UHFFFAOYSA-N 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 102220097244 rs876660902 Human genes 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 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
- G11B7/0901—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 (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NLAANVRAGE7600842,A NL182258C (nl) | 1976-01-28 | 1976-01-28 | Inrichting voor het uitlezen van een vlakke registratiedrager met een optisch uitleesbare informatiestructuur. |
| NL7600842 | 1976-01-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1094684A true CA1094684A (en) | 1981-01-27 |
Family
ID=19825526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA270,465A Expired CA1094684A (en) | 1976-01-28 | 1977-01-26 | Apparatus for reading a record carrier with an optically readable information structure |
Country Status (21)
| Country | Link |
|---|---|
| JP (1) | JPS5293222A (enExample) |
| AR (1) | AR211720A1 (enExample) |
| AT (1) | AT349231B (enExample) |
| AU (1) | AU505466B2 (enExample) |
| BE (1) | BE850781A (enExample) |
| BR (1) | BR7700452A (enExample) |
| CA (1) | CA1094684A (enExample) |
| CH (1) | CH613797A5 (enExample) |
| DE (1) | DE2701539C2 (enExample) |
| DK (1) | DK146106C (enExample) |
| ES (1) | ES455360A1 (enExample) |
| FR (1) | FR2339928A1 (enExample) |
| GB (1) | GB1534381A (enExample) |
| IT (1) | IT1074335B (enExample) |
| MX (1) | MX143161A (enExample) |
| NL (1) | NL182258C (enExample) |
| NO (1) | NO149188C (enExample) |
| NZ (1) | NZ183152A (enExample) |
| PL (1) | PL107679B1 (enExample) |
| SE (2) | SE408238B (enExample) |
| ZA (1) | ZA7711B (enExample) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6038771B2 (ja) * | 1978-06-19 | 1985-09-03 | パイオニア株式会社 | 光学式情報読取装置のサ−ボ装置 |
| 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 |
| JPS5891538A (ja) * | 1981-11-25 | 1983-05-31 | Hitachi Ltd | 光デイスクトラツク追跡装置 |
| NL8204555A (nl) * | 1981-11-25 | 1983-06-16 | Hitachi Ltd | Inrichting voor het registreren en weergeven van informatie. |
| NL8105347A (nl) * | 1981-11-26 | 1983-06-16 | Philips Nv | Inrichting voor het optisch aftasten van een schijfvormige registratiedrager. |
| NL8105346A (enExample) * | 1981-11-26 | 1983-06-16 | ||
| JPS58125242A (ja) * | 1982-01-22 | 1983-07-26 | Victor Co Of Japan Ltd | 光学的情報信号再生装置のトラツキング誤差検出方式 |
| JPS58150145A (ja) * | 1982-03-03 | 1983-09-06 | Toshiba Corp | 光学式デジタルデイスクプレ−ヤのトラツキング制御回路 |
| JPS58208944A (ja) * | 1982-05-31 | 1983-12-05 | Sony Corp | 光学ヘツド制御信号発生装置 |
| JPS5922242A (ja) * | 1982-07-26 | 1984-02-04 | Foster Denki Kk | 情報再生装置における光学系制御信号検出回路 |
| JPS59110045A (ja) * | 1982-12-13 | 1984-06-25 | Sanyo Electric Co Ltd | 光学式ピツクアツプ装置 |
| JPS59191144A (ja) * | 1983-04-14 | 1984-10-30 | Sony Corp | 光ピツクアツプのトラツキングサ−ボ回路 |
| JPS59198540A (ja) * | 1983-04-26 | 1984-11-10 | Asahi Optical Co Ltd | 光学式デイスクプレ−ヤのトラツキングサ−ボ回路 |
| US4740940A (en) * | 1985-03-11 | 1988-04-26 | Matsushita Electric Industrial Co., Ltd. | Optical information read apparatus |
| JPS61248237A (ja) * | 1985-04-25 | 1986-11-05 | Sankyo Seiki Mfg Co Ltd | トラツキング誤差信号検出方法 |
| JP2796592B2 (ja) * | 1985-10-17 | 1998-09-10 | セイコーインスツルメンツ株式会社 | トラツキングエラー信号発生回路 |
| JP2824573B2 (ja) * | 1985-11-08 | 1998-11-11 | セイコーインスツルメンツ株式会社 | トラツキングエラー信号発生回路 |
| JP2906144B2 (ja) * | 1986-04-09 | 1999-06-14 | セイコーインスツルメンツ株式会社 | 光学ヘツド制御装置 |
| 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 |
| DE69507080T2 (de) * | 1994-06-07 | 1999-05-27 | Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka | Optisches Informationsaufzeichnungsmedium, optisches Informationsaufzeichnungsverfahren, und optisches Informationswiedergabegerät hierfür |
| TW364992B (en) * | 1996-04-25 | 1999-07-21 | Toshiba Corp | Optic data regeneration apparatus and control method thereof |
| DE19723542A1 (de) * | 1997-06-05 | 1998-12-10 | Thomson Brandt Gmbh | Gerät zum Lesen und/oder Beschreiben optischer Aufzeichnungsträger |
| JP3544847B2 (ja) | 1998-01-16 | 2004-07-21 | 三菱電機株式会社 | 光学的情報再生方法および装置 |
| JP4875083B2 (ja) | 2006-11-16 | 2012-02-15 | パナソニック株式会社 | 光学式情報再生装置のトラッキング装置 |
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/xx not_active IP Right Cessation
-
1977
- 1977-01-03 ZA ZA00770011A patent/ZA7711B/xx unknown
- 1977-01-15 DE DE2701539A patent/DE2701539C2/de not_active Expired
- 1977-01-24 MX MX167802A patent/MX143161A/es unknown
- 1977-01-25 CH CH89377A patent/CH613797A5/xx not_active IP Right Cessation
- 1977-01-25 DK DK30777A patent/DK146106C/da not_active IP Right Cessation
- 1977-01-25 GB GB2943/77A patent/GB1534381A/en not_active Expired
- 1977-01-25 NO NO770240A patent/NO149188C/no unknown
- 1977-01-25 SE SE7700725A patent/SE408238B/xx not_active IP Right Cessation
- 1977-01-25 SE SE7700725D patent/SE7700725L/xx not_active Application Discontinuation
- 1977-01-25 IT IT19598/77A patent/IT1074335B/it active
- 1977-01-25 BR BR7700452A patent/BR7700452A/pt unknown
- 1977-01-25 NZ NZ183152A patent/NZ183152A/xx unknown
- 1977-01-25 AU AU21616/77A patent/AU505466B2/en not_active Expired
- 1977-01-25 PL PL1977195541A patent/PL107679B1/pl unknown
- 1977-01-26 AT AT46077A patent/AT349231B/de not_active IP Right Cessation
- 1977-01-26 ES ES455360A patent/ES455360A1/es not_active Expired
- 1977-01-26 BE BE174406A patent/BE850781A/xx unknown
- 1977-01-26 CA CA270,465A patent/CA1094684A/en not_active Expired
- 1977-01-26 JP JP686777A patent/JPS5293222A/ja active Granted
- 1977-01-27 FR FR7702258A patent/FR2339928A1/fr active Granted
- 1977-01-27 AR AR266331A patent/AR211720A1/es active
Also Published As
| Publication number | Publication date |
|---|---|
| CH613797A5 (en) | 1979-10-15 |
| BR7700452A (pt) | 1977-10-04 |
| IT1074335B (it) | 1985-04-20 |
| DE2701539A1 (de) | 1977-08-04 |
| FR2339928A1 (fr) | 1977-08-26 |
| NL182258B (nl) | 1987-09-01 |
| JPS5630610B2 (enExample) | 1981-07-16 |
| ZA7711B (en) | 1978-08-30 |
| NO770240L (no) | 1977-07-29 |
| ATA46077A (de) | 1978-08-15 |
| AU2161677A (en) | 1978-08-03 |
| ES455360A1 (es) | 1978-01-01 |
| GB1534381A (en) | 1978-12-06 |
| AT349231B (de) | 1979-03-26 |
| SE408238B (sv) | 1979-05-21 |
| NL7600842A (nl) | 1977-08-01 |
| DK146106C (da) | 1983-11-21 |
| AR211720A1 (es) | 1978-02-28 |
| NL182258C (nl) | 1988-02-01 |
| JPS5293222A (en) | 1977-08-05 |
| AU505466B2 (en) | 1979-11-22 |
| NZ183152A (en) | 1980-04-28 |
| PL107679B1 (pl) | 1980-02-29 |
| NO149188C (no) | 1984-02-29 |
| DE2701539C2 (de) | 1981-11-12 |
| FR2339928B1 (enExample) | 1980-03-21 |
| DK146106B (da) | 1983-06-27 |
| NO149188B (no) | 1983-11-21 |
| BE850781A (fr) | 1977-07-26 |
| MX143161A (es) | 1981-03-26 |
| DK30777A (da) | 1977-07-29 |
| SE7700725L (sv) | 1977-07-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1094684A (en) | Apparatus for reading a record carrier with an optically readable information structure | |
| US4057833A (en) | Centering detection system for an apparatus for playing optically readable record carriers | |
| CA1096494A (en) | Apparatus for reading a record carrier on which information for example video and or audio information is stored | |
| US4123652A (en) | Apparatus for reading a radiation-reflecting record carrier | |
| CA1137628A (en) | Record carrier with tracks of different phase depths | |
| US4953124A (en) | Opto-magnetic signal reproducing apparatus for reading, by differential detection using a magneto-optical effect, information magnetically recorded on a record medium | |
| US4455632A (en) | Apparatus for optically reading a record carrier with two types of information areas | |
| KR100252600B1 (ko) | 광픽업장치,광디스크기록재생장치및포커스오차신호생성방법 | |
| US5416755A (en) | Optical pickup using split beams impinging on different photo-detector areas | |
| US5255263A (en) | Information reading system and record carrier and reading device for use in such a system | |
| US4661944A (en) | Optical recording/playback apparatus having a focusing control system with reduced spot-offset sensitivity | |
| US5404344A (en) | Recording/reproducing optical head producing focusing error signal from zero-th order diffracted light and tracking error signal from first order diffracted light | |
| JPH04212742A (ja) | 光ヘッド及び光記憶再生装置 | |
| US5345072A (en) | Focus detection device for reading information from an optical recording medium | |
| KR960016890B1 (ko) | 광학 스캐닝 장치 | |
| CA1109560A (en) | Apparatus for reading a radiation-reflecting record carrier | |
| JP2877952B2 (ja) | 光学式走査装置 | |
| US4845701A (en) | Optical disc player for optically reproducing recorded information on an optical information disc into an RF signal | |
| KR100395587B1 (ko) | 상이한트랙폭을갖는광학정보매체용기록또는재생장치 | |
| US4712206A (en) | Tracking error signal detecting device with a two-beam system for use in an optical information memory | |
| US5283772A (en) | Optical head | |
| US5787060A (en) | Optical data recording/reproducing apparatus for producing data and servo signals using different light receiving areas of a light receiver | |
| KR0168456B1 (ko) | 자기광학장치 | |
| US5719830A (en) | High-density magneto-optical disk apparatus | |
| JP2594903B2 (ja) | 焦点誤差検出装置 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |