NO770240L - DEVICE FOR READING A RECORD BREADER WITH OPTIC READABLE INFORMATION STRUCTURE. - Google Patents

DEVICE FOR READING A RECORD BREADER WITH OPTIC READABLE INFORMATION STRUCTURE.

Info

Publication number
NO770240L
NO770240L NO770240A NO770240A NO770240L NO 770240 L NO770240 L NO 770240L NO 770240 A NO770240 A NO 770240A NO 770240 A NO770240 A NO 770240A NO 770240 L NO770240 L NO 770240L
Authority
NO
Norway
Prior art keywords
breader
optic
record
reading
readable information
Prior art date
Application number
NO770240A
Other languages
Norwegian (no)
Other versions
NO149188B (en
NO149188C (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
Publication of NO770240L publication Critical patent/NO770240L/en
Publication of NO149188B publication Critical patent/NO149188B/en
Publication of NO149188C publication Critical patent/NO149188C/en

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09Disposition 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
    • G11B7/0901Disposition 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
    • G11B7/0906Differential phase difference systems
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00Recording 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
    • G11B11/10Recording 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
    • G11B11/105Recording 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
    • G11B11/10502Recording 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
    • G11B11/1053Recording 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00Recording 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
    • G11B11/10Recording 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
    • G11B11/105Recording 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
    • G11B11/10532Heads
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00Recording 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
    • G11B11/10Recording 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
    • G11B11/105Recording 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
    • G11B11/1055Disposition or mounting of transducers relative to record carriers
    • G11B11/10576Disposition or mounting of transducers relative to record carriers with provision for moving the transducers for maintaining alignment or spacing relative to the carrier
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09Disposition 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
    • G11B7/0946Disposition 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/76Television signal recording
    • H04N5/7605Television signal recording on discs or drums
NO770240A 1976-01-28 1977-01-25 DEVICE FOR READING A RECORDING BEAR WITH OPTICAL READABLE INFORMATION STRUCTURE NO149188C (en)

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
NO770240L true NO770240L (en) 1977-07-29
NO149188B NO149188B (en) 1983-11-21
NO149188C NO149188C (en) 1984-02-29

Family

ID=19825526

Family Applications (1)

Application Number Title Priority Date Filing Date
NO770240A NO149188C (en) 1976-01-28 1977-01-25 DEVICE FOR READING A RECORDING BEAR WITH OPTICAL 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
KR100254155B1 (en) 1994-06-07 2000-04-15 모리시타 요이찌 Optical information recording medium and method, and optical reproducing apparatus utilizing the same
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
JP4875083B2 (en) 2006-11-16 2012-02-15 パナソニック株式会社 Tracking device for optical information reproducing device

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
MX143161A (en) 1981-03-26
DE2701539A1 (en) 1977-08-04
SE408238B (en) 1979-05-21
DK146106B (en) 1983-06-27
DK30777A (en) 1977-07-29
SE7700725L (en) 1977-07-29
FR2339928A1 (en) 1977-08-26
AU2161677A (en) 1978-08-03
JPS5293222A (en) 1977-08-05
GB1534381A (en) 1978-12-06
NO149188B (en) 1983-11-21
FR2339928B1 (en) 1980-03-21
CA1094684A (en) 1981-01-27
NZ183152A (en) 1980-04-28
BR7700452A (en) 1977-10-04
IT1074335B (en) 1985-04-20
BE850781A (en) 1977-07-26
AT349231B (en) 1979-03-26
NL7600842A (en) 1977-08-01
DE2701539C2 (en) 1981-11-12
NL182258B (en) 1987-09-01
ZA7711B (en) 1978-08-30
NO149188C (en) 1984-02-29
ATA46077A (en) 1978-08-15
NL182258C (en) 1988-02-01
PL107679B1 (en) 1980-02-29
ES455360A1 (en) 1978-01-01
AR211720A1 (en) 1978-02-28
AU505466B2 (en) 1979-11-22
DK146106C (en) 1983-11-21
JPS5630610B2 (en) 1981-07-16
CH613797A5 (en) 1979-10-15

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