NL182258C - Inrichting voor het uitlezen van een vlakke registratiedrager met een optisch uitleesbare informatiestructuur. - Google Patents
Inrichting voor het uitlezen van een vlakke registratiedrager met een optisch uitleesbare informatiestructuur.Info
- Publication number
- NL182258C NL182258C NLAANVRAGE7600842,A NL7600842A NL182258C NL 182258 C NL182258 C NL 182258C NL 7600842 A NL7600842 A NL 7600842A NL 182258 C NL182258 C NL 182258C
- Authority
- NL
- Netherlands
- Prior art keywords
- reading
- record carrier
- readable information
- information structure
- optically readable
- 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)
Priority Applications (23)
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. |
US05/669,639 US4057833A (en) | 1974-10-03 | 1976-03-23 | Centering detection system for an apparatus for playing optically readable record carriers |
ZA00770011A ZA7711B (en) | 1976-01-28 | 1977-01-03 | Apparatus for reading a record carrier with an optically readable information structure |
DE2701539A DE2701539C2 (de) | 1976-01-28 | 1977-01-15 | Vorrichtung zum Auslesen eines Aufzeichnungsträgers mit einer optisch auslesbaren Informationsstruktur |
MX167802A MX143161A (es) | 1976-01-28 | 1977-01-24 | Mejoras en aparato para leer und portador de grabacion en el cual se memoriza la informacion |
SE7700725D SE7700725L (sv) | 1976-01-28 | 1977-01-25 | Apparat for avlesning av en uppteckningsberare med en optiskt lesbar informationsstruktur |
GB2943/77A GB1534381A (en) | 1976-01-28 | 1977-01-25 | Apparatus for reading a record carrier with an optically readable information structure |
SE7700725A SE408238B (sv) | 1976-01-28 | 1977-01-25 | Apparat foer avlaesning av en uppteckningsbaerare med en optiskt laesbar informationsstruktur innefattande bl a centreringsdetekteringssystem |
BR7700452A BR7700452A (pt) | 1976-01-28 | 1977-01-25 | Aparelho para ler uma portadora de registro |
NZ183152A NZ183152A (en) | 1976-01-28 | 1977-01-25 | Multiple detectors used to centre read beam on track of optically readable information structure |
AU21616/77A AU505466B2 (en) | 1976-01-28 | 1977-01-25 | Centring system inan apparatus for optically reading a record carrier |
CH89377A CH613797A5 (en) | 1976-01-28 | 1977-01-25 | Device for reading out from a recording carrier having an optically readable information structure |
NO770240A NO149188C (no) | 1976-01-28 | 1977-01-25 | Apparat for avlesning av en opptegningsbaerer med optisk avlesbar informasjonsstruktur |
PL1977195541A PL107679B1 (pl) | 1976-01-28 | 1977-01-25 | Urzadzenie do odczytu nosnika zapisu z optycznie odczytywalna struktura informacyjna |
DK30777A DK146106C (da) | 1976-01-28 | 1977-01-25 | Apparat med et centreringsdetektorsystem til aflaesning med en optisk aflaeselig informationsstruktur |
IT19598/77A IT1074335B (it) | 1976-01-28 | 1977-01-25 | Apparecchiatura per la lettura di un supporto di registrazione con una struttura d'informazione atta ad essere letta otticamente |
BE174406A BE850781A (fr) | 1976-01-28 | 1977-01-26 | Dispositif pour la lecture d'un support d'enregistrement presentant une structure d'information lisible par voie optique |
AT46077A AT349231B (de) | 1976-01-28 | 1977-01-26 | Vorrichtung zum auslesen eines aufzeichnungs- traegers mit einer optisch auslesbaren informationsstruktur |
ES455360A ES455360A1 (es) | 1976-01-28 | 1977-01-26 | Aparato perfeccionado para leer un portador de registro en el cual esta almacenada informacion. |
JP686777A JPS5293222A (en) | 1976-01-28 | 1977-01-26 | Recording medium reader |
CA270,465A CA1094684A (en) | 1976-01-28 | 1977-01-26 | Apparatus for reading a record carrier with an optically readable information structure |
FR7702258A FR2339928A1 (fr) | 1976-01-28 | 1977-01-27 | Dispositif pour la lecture d'un porteur d'enregistrement presentant une structure d'information lisible par voie optique |
AR266331A AR211720A1 (es) | 1976-01-28 | 1977-01-27 | Aparato para leer un portador de grabacion |
Applications Claiming Priority (1)
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. |
Publications (3)
Publication Number | Publication Date |
---|---|
NL7600842A NL7600842A (nl) | 1977-08-01 |
NL182258B NL182258B (nl) | 1987-09-01 |
NL182258C true NL182258C (nl) | 1988-02-01 |
Family
ID=19825526
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NLAANVRAGE7600842,A NL182258C (nl) | 1974-10-03 | 1976-01-28 | Inrichting voor het uitlezen van een vlakke registratiedrager met een optisch uitleesbare informatiestructuur. |
Country Status (21)
Country | Link |
---|---|
JP (1) | JPS5293222A (es) |
AR (1) | AR211720A1 (es) |
AT (1) | AT349231B (es) |
AU (1) | AU505466B2 (es) |
BE (1) | BE850781A (es) |
BR (1) | BR7700452A (es) |
CA (1) | CA1094684A (es) |
CH (1) | CH613797A5 (es) |
DE (1) | DE2701539C2 (es) |
DK (1) | DK146106C (es) |
ES (1) | ES455360A1 (es) |
FR (1) | FR2339928A1 (es) |
GB (1) | GB1534381A (es) |
IT (1) | IT1074335B (es) |
MX (1) | MX143161A (es) |
NL (1) | NL182258C (es) |
NO (1) | NO149188C (es) |
NZ (1) | NZ183152A (es) |
PL (1) | PL107679B1 (es) |
SE (2) | SE408238B (es) |
ZA (1) | ZA7711B (es) |
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 |
US4564929A (en) * | 1981-11-25 | 1986-01-14 | Hitachi, Ltd. | Information recording and reproducing apparatus with tracking control by sampling |
NL8105347A (nl) * | 1981-11-26 | 1983-06-16 | Philips Nv | Inrichting voor het optisch aftasten van een schijfvormige registratiedrager. |
NL8105346A (es) * | 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 |
KR100254155B1 (ko) * | 1994-06-07 | 2000-04-15 | 모리시타 요이찌 | 광학 정보 기록 매체, 광학 정보 기록 방법, 및 이 방법을 사용한 광학 정보 재생 장치 |
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 NZ NZ183152A patent/NZ183152A/xx unknown
- 1977-01-25 PL PL1977195541A patent/PL107679B1/pl unknown
- 1977-01-25 CH CH89377A patent/CH613797A5/xx not_active IP Right Cessation
- 1977-01-25 AU AU21616/77A patent/AU505466B2/en not_active Expired
- 1977-01-25 DK DK30777A patent/DK146106C/da not_active IP Right Cessation
- 1977-01-25 NO NO770240A patent/NO149188C/no unknown
- 1977-01-25 BR BR7700452A patent/BR7700452A/pt unknown
- 1977-01-25 SE SE7700725A patent/SE408238B/xx not_active IP Right Cessation
- 1977-01-25 GB GB2943/77A patent/GB1534381A/en not_active Expired
- 1977-01-25 SE SE7700725D patent/SE7700725L/xx not_active Application Discontinuation
- 1977-01-25 IT IT19598/77A patent/IT1074335B/it active
- 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
- 1977-01-26 AT AT46077A patent/AT349231B/de not_active IP Right Cessation
- 1977-01-26 ES ES455360A patent/ES455360A1/es not_active Expired
- 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 |
---|---|
AT349231B (de) | 1979-03-26 |
ZA7711B (en) | 1978-08-30 |
NO770240L (no) | 1977-07-29 |
BR7700452A (pt) | 1977-10-04 |
MX143161A (es) | 1981-03-26 |
NL182258B (nl) | 1987-09-01 |
SE408238B (sv) | 1979-05-21 |
NO149188B (no) | 1983-11-21 |
IT1074335B (it) | 1985-04-20 |
DK146106B (da) | 1983-06-27 |
AR211720A1 (es) | 1978-02-28 |
JPS5630610B2 (es) | 1981-07-16 |
JPS5293222A (en) | 1977-08-05 |
FR2339928B1 (es) | 1980-03-21 |
NO149188C (no) | 1984-02-29 |
ATA46077A (de) | 1978-08-15 |
AU505466B2 (en) | 1979-11-22 |
NZ183152A (en) | 1980-04-28 |
CH613797A5 (en) | 1979-10-15 |
GB1534381A (en) | 1978-12-06 |
DK30777A (da) | 1977-07-29 |
PL107679B1 (pl) | 1980-02-29 |
FR2339928A1 (fr) | 1977-08-26 |
CA1094684A (en) | 1981-01-27 |
BE850781A (fr) | 1977-07-26 |
DE2701539C2 (de) | 1981-11-12 |
DK146106C (da) | 1983-11-21 |
AU2161677A (en) | 1978-08-03 |
DE2701539A1 (de) | 1977-08-04 |
SE7700725L (sv) | 1977-07-29 |
NL7600842A (nl) | 1977-08-01 |
ES455360A1 (es) | 1978-01-01 |
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