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NL182258B - DEVICE FOR READING A FLAT RECORD CARRIER WITH AN OPTICALLY READABLE INFORMATION STRUCTURE. - Google Patents

DEVICE FOR READING A FLAT RECORD CARRIER WITH AN OPTICALLY READABLE INFORMATION STRUCTURE.

Info

Publication number
NL182258B
NL182258B NLAANVRAGE7600842,A NL7600842A NL182258B NL 182258 B NL182258 B NL 182258B NL 7600842 A NL7600842 A NL 7600842A NL 182258 B NL182258 B NL 182258B
Authority
NL
Netherlands
Prior art keywords
reading
record carrier
readable information
information structure
optically readable
Prior art date
Application number
NLAANVRAGE7600842,A
Other languages
Dutch (nl)
Other versions
NL7600842A (en
NL182258C (en
Inventor
Josephus Johannes Maria Braat
Original Assignee
Philips Nv
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Philips Nv filed Critical Philips Nv
Priority to NLAANVRAGE7600842,A priority Critical patent/NL182258C/en
Priority to US05/669,639 priority patent/US4057833A/en
Priority to ZA00770011A priority patent/ZA7711B/en
Priority to DE2701539A priority patent/DE2701539C2/en
Priority to MX167802A priority patent/MX143161A/en
Priority to BR7700452A priority patent/BR7700452A/en
Priority to DK30777A priority patent/DK146106C/en
Priority to NZ183152A priority patent/NZ183152A/en
Priority to SE7700725A priority patent/SE408238B/en
Priority to IT19598/77A priority patent/IT1074335B/en
Priority to GB2943/77A priority patent/GB1534381A/en
Priority to PL1977195541A priority patent/PL107679B1/en
Priority to SE7700725D priority patent/SE7700725L/en
Priority to CH89377A priority patent/CH613797A5/en
Priority to AU21616/77A priority patent/AU505466B2/en
Priority to NO770240A priority patent/NO149188C/en
Priority to ES455360A priority patent/ES455360A1/en
Priority to JP686777A priority patent/JPS5293222A/en
Priority to AT46077A priority patent/AT349231B/en
Priority to CA270,465A priority patent/CA1094684A/en
Priority to BE174406A priority patent/BE850781A/en
Priority to FR7702258A priority patent/FR2339928A1/en
Priority to AR266331A priority patent/AR211720A1/en
Publication of NL7600842A publication Critical patent/NL7600842A/en
Publication of NL182258B publication Critical patent/NL182258B/en
Application granted granted Critical
Publication of NL182258C publication Critical patent/NL182258C/en

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)
NLAANVRAGE7600842,A 1974-10-03 1976-01-28 DEVICE FOR READING A FLAT RECORD CARRIER WITH AN OPTICALLY READABLE INFORMATION STRUCTURE. NL182258C (en)

Priority Applications (23)

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.
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 (en) 1976-01-28 1977-01-15 Device for reading out a recording medium with an optically readable information structure
MX167802A MX143161A (en) 1976-01-28 1977-01-24 IMPROVEMENTS IN DEVICE TO READ A RECORDING CARRIER IN WHICH THE INFORMATION IS MEMORIZED
CH89377A CH613797A5 (en) 1976-01-28 1977-01-25 Device for reading out from a recording carrier having an optically readable information structure
NZ183152A NZ183152A (en) 1976-01-28 1977-01-25 Multiple detectors used to centre read beam on track of optically readable information structure
SE7700725A SE408238B (en) 1976-01-28 1977-01-25 DEVICE FOR READING A RECORD CARRIER WITH AN OPTICALLY READABLE INFORMATION STRUCTURE INCLUDING CENTER DETECTION SYSTEMS
IT19598/77A IT1074335B (en) 1976-01-28 1977-01-25 APPARATUS FOR READING A RECORDING MEDIA WITH AN INFORMATION STRUCTURE SUITABLE FOR BEING OPTICALLY READ
GB2943/77A GB1534381A (en) 1976-01-28 1977-01-25 Apparatus for reading a record carrier with an optically readable information structure
PL1977195541A PL107679B1 (en) 1976-01-28 1977-01-25 EQUIPMENT FOR READING RECORD MEDIA WITH OPTICAL READABLE INFORMATION STRUCTURE
SE7700725D SE7700725L (en) 1976-01-28 1977-01-25 DEVICE FOR READING A RECORD CARRIER WITH AN OPTICALLY READABLE INFORMATION STRUCTURE
BR7700452A BR7700452A (en) 1976-01-28 1977-01-25 APPLIANCE FOR READING A REGISTRATION CARRIER
AU21616/77A AU505466B2 (en) 1976-01-28 1977-01-25 Centring system inan apparatus for optically reading a record carrier
NO770240A NO149188C (en) 1976-01-28 1977-01-25 DEVICE FOR READING A RECORDING BEAR WITH OPTICAL READABLE INFORMATION STRUCTURE
DK30777A DK146106C (en) 1976-01-28 1977-01-25 DEVICE WITH A CENTRAL DETECTOR SYSTEM FOR READING WITH AN OPTICALLY READABLE INFORMATION STRUCTURE
ES455360A ES455360A1 (en) 1976-01-28 1977-01-26 Apparatus for reading a record carrier with an optically readable information structure
JP686777A JPS5293222A (en) 1976-01-28 1977-01-26 Recording medium reader
AT46077A AT349231B (en) 1976-01-28 1977-01-26 DEVICE FOR READING A RECORDING CARRIER WITH AN OPTICALLY READABLE INFORMATION STRUCTURE
CA270,465A CA1094684A (en) 1976-01-28 1977-01-26 Apparatus for reading a record carrier with an optically readable information structure
BE174406A BE850781A (en) 1976-01-28 1977-01-26 DEVICE FOR READING A RECORDING MEDIA PRESENTING AN OPTICAL READABLE INFORMATION STRUCTURE
FR7702258A FR2339928A1 (en) 1976-01-28 1977-01-27 DEVICE FOR READING A RECORD HOLDER WITH AN OPTICALLY READABLE INFORMATION STRUCTURE
AR266331A AR211720A1 (en) 1976-01-28 1977-01-27 APPARATUS TO READ A RECORDING CARRIER

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 (3)

Publication Number Publication Date
NL7600842A NL7600842A (en) 1977-08-01
NL182258B true NL182258B (en) 1987-09-01
NL182258C NL182258C (en) 1988-02-01

Family

ID=19825526

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7600842,A NL182258C (en) 1974-10-03 1976-01-28 DEVICE FOR READING A FLAT RECORD CARRIER WITH AN OPTICALLY READABLE INFORMATION STRUCTURE.

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)

* Cited by examiner, † Cited by third party
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
NL8105346A (en) * 1981-11-26 1983-06-16
NL8105347A (en) * 1981-11-26 1983-06-16 Philips Nv Apparatus for the optical scanning of a disc-shaped record carrier.
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
DE69507080T2 (en) * 1994-06-07 1999-05-27 Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka Optical information recording medium, optical information recording method, and optical information reproducing apparatus therefor
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
US7952966B2 (en) 2006-11-16 2011-05-31 Panasonic Corporation Tracking apparatus for optical information reproduction apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
BR7700452A (en) 1977-10-04
DK146106B (en) 1983-06-27
JPS5293222A (en) 1977-08-05
AT349231B (en) 1979-03-26
NO149188C (en) 1984-02-29
BE850781A (en) 1977-07-26
AR211720A1 (en) 1978-02-28
PL107679B1 (en) 1980-02-29
CH613797A5 (en) 1979-10-15
AU505466B2 (en) 1979-11-22
NO149188B (en) 1983-11-21
SE7700725L (en) 1977-07-29
ATA46077A (en) 1978-08-15
NO770240L (en) 1977-07-29
IT1074335B (en) 1985-04-20
FR2339928A1 (en) 1977-08-26
NZ183152A (en) 1980-04-28
CA1094684A (en) 1981-01-27
NL7600842A (en) 1977-08-01
JPS5630610B2 (en) 1981-07-16
NL182258C (en) 1988-02-01
GB1534381A (en) 1978-12-06
DK30777A (en) 1977-07-29
SE408238B (en) 1979-05-21
ZA7711B (en) 1978-08-30
DE2701539C2 (en) 1981-11-12
MX143161A (en) 1981-03-26
AU2161677A (en) 1978-08-03
ES455360A1 (en) 1978-01-01
DE2701539A1 (en) 1977-08-04
DK146106C (en) 1983-11-21
FR2339928B1 (en) 1980-03-21

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Legal Events

Date Code Title Description
BC A request for examination has been filed
A85 Still pending on 85-01-01
V1 Lapsed because of non-payment of the annual fee