ATA46077A - DEVICE FOR READING A RECORDING CARRIER WITH AN OPTICALLY READABLE INFORMATION STRUCTURE - Google Patents

DEVICE FOR READING A RECORDING CARRIER WITH AN OPTICALLY READABLE INFORMATION STRUCTURE

Info

Publication number
ATA46077A
ATA46077A AT46077A AT46077A ATA46077A AT A46077 A ATA46077 A AT A46077A AT 46077 A AT46077 A AT 46077A AT 46077 A AT46077 A AT 46077A AT A46077 A ATA46077 A AT A46077A
Authority
AT
Austria
Prior art keywords
reading
readable information
recording carrier
information structure
optically readable
Prior art date
Application number
AT46077A
Other languages
German (de)
Other versions
AT349231B (en
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 ATA46077A publication Critical patent/ATA46077A/en
Application granted granted Critical
Publication of AT349231B publication Critical patent/AT349231B/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)
AT46077A 1976-01-28 1977-01-26 DEVICE FOR READING A RECORDING CARRIER WITH AN OPTICALLY READABLE INFORMATION STRUCTURE AT349231B (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 (2)

Publication Number Publication Date
ATA46077A true ATA46077A (en) 1978-08-15
AT349231B AT349231B (en) 1979-03-26

Family

ID=19825526

Family Applications (1)

Application Number Title Priority Date Filing Date
AT46077A AT349231B (en) 1976-01-28 1977-01-26 DEVICE FOR READING A RECORDING 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
NL8204555A (en) * 1981-11-25 1983-06-16 Hitachi Ltd DEVICE FOR RECORDING AND DISPLAYING INFORMATION.
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
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
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
NO149188C (en) 1984-02-29
JPS5293222A (en) 1977-08-05
FR2339928A1 (en) 1977-08-26
NO149188B (en) 1983-11-21
ZA7711B (en) 1978-08-30
DK146106C (en) 1983-11-21
SE7700725L (en) 1977-07-29
NO770240L (en) 1977-07-29
FR2339928B1 (en) 1980-03-21
GB1534381A (en) 1978-12-06
DE2701539C2 (en) 1981-11-12
DK30777A (en) 1977-07-29
BE850781A (en) 1977-07-26
AU505466B2 (en) 1979-11-22
NZ183152A (en) 1980-04-28
NL7600842A (en) 1977-08-01
DE2701539A1 (en) 1977-08-04
DK146106B (en) 1983-06-27
MX143161A (en) 1981-03-26
CA1094684A (en) 1981-01-27
AU2161677A (en) 1978-08-03
ES455360A1 (en) 1978-01-01
NL182258C (en) 1988-02-01
BR7700452A (en) 1977-10-04
NL182258B (en) 1987-09-01
AR211720A1 (en) 1978-02-28
IT1074335B (en) 1985-04-20
JPS5630610B2 (en) 1981-07-16
SE408238B (en) 1979-05-21
CH613797A5 (en) 1979-10-15
AT349231B (en) 1979-03-26
PL107679B1 (en) 1980-02-29

Similar Documents

Publication Publication Date Title
AT347149B (en) DEVICE FOR READING A FLAT RECORDING CARRIER WITH AN OPTICALLY READABLE INFORMATION STRUCTURE
AT349231B (en) DEVICE FOR READING A RECORDING CARRIER WITH AN OPTICALLY READABLE INFORMATION STRUCTURE
ATA245679A (en) RECORDING CARRIER IN WHICH DATA IS STORED IN AN OPTICALLY READABLE INFORMATION STRUCTURE AND DEVICE FOR READING THE SAME
AT357205B (en) DEVICE FOR READING A RADIATION REFLECTIVE RECORDING CARRIER
AT344265B (en) DEVICE FOR READING A RADIATION REFLECTING RECORDING CARRIER ON WHICH INFORMATION IS APPLIED IN AN OPTICALLY READABLE TRACK-SHAPED INFORMATION STRUCTURE
ATA476680A (en) RECORDING CARRIER IN WHICH INFORMATION IS RECORDED IN AN OPTICALLY CONTACT-READABLE INFORMATION STRUCTURE, SOEIR DEVICE FOR READING OUT SUCH A RECORDING CARRIER
DE3889300D1 (en) Recording device with a cutting device for cutting a printed tape held by a carrier tape.
AT371270B (en) DEVICE FOR READING A DISK-SHAPED RECORDING CARRIER
AT371269B (en) DEVICE FOR READING A DISK-SHAPED RECORDING CARRIER
AT370899B (en) DEVICE FOR WRITING INFORMATION INTO A DISK-SHAPED OPTICALLY READABLE RECORDING CARRIER
AT365358B (en) OPTICAL READING DEVICE FOR READING A DISK-SHAPED RECORDING CARRIER
AT385382B (en) DEVICE FOR TRANSMITTING INFORMATION SIGNALS REGARDING A MAGNETIC TAPE
AT337791B (en) DEVICE FOR READING INFORMATION STORED ON A RECORDING MEDIA IN AN OPTICALLY READABLE REFLECTIVE STRUCTURE
AT337268B (en) DEVICE FOR READING INFORMATION STORED ON A RECORDING CARRIER IN AN OPTICALLY READABLE STRUCTURE
AT374944B (en) DEVICE FOR READING A RECORDING CARRIER WITH AN OPTICALLY READABLE, TRACK-SHAPED DATA STRUCTURE
AT368311B (en) RECORD CARRIER WITH AN OPTICALLY READABLE INFORMATION STRUCTURE
AT339391B (en) DEVICE FOR READING INFORMATION STORED ON A RECORDING CARRIER IN AN OPTICALLY READABLE STRUCTURE
AT351819B (en) RECORDING CARRIER WITH AN OPTICALLY READABLE, ALONG TRACKS OF INFORMATION STRUCTURE AND DEVICE FOR READING THE SAME
AT371275B (en) DEVICE FOR READING AN OPTICALLY READABLE RADIATION REFLECTING DATA CARRIER
AT378459B (en) DEVICE FOR READING A DISK-SHAPED RECORDING CARRIER
AT338889B (en) RECORDING CARRIER ON WHICH INFORMATION IS APPLIED IN AN OPTICALLY READABLE STRUCTURE, AND DEVICE FOR READING THIS INFORMATION
ATA257782A (en) DEVICE FOR READING A RECORDING CARRIER WITH AN OPTICALLY READABLE INFORMATION STRUCTURE
AT380614B (en) DEVICE FOR RECORDING AN INFORMATION SIGNAL PROPORTION IN FOLLOWING, PARALLEL TRACKS ON A RECORDING CARRIER
JPS5333604A (en) Device for optically reading information
AT380341B (en) DEVICE FOR TREATING A TAPE-ROLLED INFORMATION CARRIER REELED IN A CASSETTE

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties
ELJ Ceased due to non-payment of the annual fee