AR217251A1 - Aparato para leer un portador de grabacion - Google Patents

Aparato para leer un portador de grabacion

Info

Publication number
AR217251A1
AR217251A1 AR266332A AR26633277A AR217251A1 AR 217251 A1 AR217251 A1 AR 217251A1 AR 266332 A AR266332 A AR 266332A AR 26633277 A AR26633277 A AR 26633277A AR 217251 A1 AR217251 A1 AR 217251A1
Authority
AR
Argentina
Prior art keywords
read
recording carrier
recording
carrier
Prior art date
Application number
AR266332A
Other languages
English (en)
Spanish (es)
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
Application granted granted Critical
Publication of AR217251A1 publication Critical patent/AR217251A1/es

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
    • G11B7/0908—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 focusing only
    • G11B7/0917—Focus-error methods other than those covered by G11B7/0909 - G11B7/0916
    • 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
    • G11B11/10515—Reproducing
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/13—Optical detectors therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Automatic Focus Adjustment (AREA)
  • Automatic Tape Cassette Changers (AREA)
AR266332A 1976-01-28 1977-01-27 Aparato para leer un portador de grabacion AR217251A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7600843A NL7600843A (nl) 1976-01-28 1976-01-28 Inrichting voor het uitlezen van een registratie- drager waarop informatie, bijvoorbeeld en/of ge- luidsinformatie, is aangebracht.

Publications (1)

Publication Number Publication Date
AR217251A1 true AR217251A1 (es) 1980-03-14

Family

ID=19825527

Family Applications (1)

Application Number Title Priority Date Filing Date
AR266332A AR217251A1 (es) 1976-01-28 1977-01-27 Aparato para leer un portador de grabacion

Country Status (22)

Country Link
US (1) US4051527A (sv)
JP (1) JPS5293223A (sv)
AR (1) AR217251A1 (sv)
AT (1) AT349230B (sv)
AU (1) AU505467B2 (sv)
BE (1) BE850782A (sv)
BR (1) BR7700453A (sv)
CA (1) CA1096494A (sv)
CH (1) CH620541A5 (sv)
DE (1) DE2701538C3 (sv)
DK (1) DK145866C (sv)
ES (1) ES455361A1 (sv)
FR (1) FR2339929A1 (sv)
GB (1) GB1572409A (sv)
IT (1) IT1084008B (sv)
MX (1) MX144032A (sv)
NL (1) NL7600843A (sv)
NO (1) NO149794C (sv)
NZ (1) NZ183153A (sv)
PL (1) PL108352B1 (sv)
SE (1) SE417555B (sv)
ZA (1) ZA7710B (sv)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7708200A (nl) * 1976-07-28 1978-01-31 Hitachi Ltd Automatische scherpstellingsinrichting.
CA1091966A (en) * 1976-10-15 1980-12-23 Chiaki Kojima Apparatus for reading signals recorded on a record carrier
JPS5398802A (en) * 1977-02-09 1978-08-29 Mitsubishi Electric Corp Optical reproducer
JPS54124705A (en) * 1978-03-20 1979-09-27 Teac Corp Optical reproducer
JPS54133305A (en) * 1978-04-07 1979-10-17 Hitachi Ltd Information recorder
NL7805069A (nl) * 1978-05-11 1979-11-13 Philips Nv Inrichting voor puntsgewijze aftasting van een infor- matievlak.
JPS5538639A (en) * 1978-09-07 1980-03-18 Pioneer Video Corp Servo drawing-in unit for focus lens of optical information reader
NL7904724A (nl) * 1979-06-18 1980-12-22 Philips Nv Optische aftastinrichting met fokusseerstelsel.
US4320486A (en) * 1980-01-11 1982-03-16 Advanced Integrated Design, Incorporated Transferring information signals from a first to a second recording medium
US4358774A (en) * 1980-07-14 1982-11-09 Discovision Associates Apparatus and method for controlling focus in a recording system
US4484319A (en) * 1980-09-19 1984-11-20 Matsushita Electric Industrial Co., Ltd. Apparatus for locating a track on disc-like optical information carriers
JPS5766533A (en) * 1980-10-09 1982-04-22 Olympus Optical Co Ltd Optical information reader
JPS5774837A (en) * 1980-10-25 1982-05-11 Olympus Optical Co Ltd Signal detection system of optical information reproducing device
JPS57120238A (en) * 1981-01-16 1982-07-27 Matsushita Electric Ind Co Ltd Reproducing device
JPS57195634U (sv) * 1981-06-05 1982-12-11
US4414658A (en) * 1981-06-12 1983-11-08 Mcdonnell Douglas Corporation Linear tracking arrangement in a photographic disc type information containing system
US4458144A (en) * 1981-06-30 1984-07-03 Storage Technology Corporation Apparatus for reading information stored in a track pattern on a radiation reflecting record
JPS5854457A (ja) * 1981-09-28 1983-03-31 Hitachi Ltd 異常時デ−タのフリ−ズ方式
JPS58118039A (ja) * 1982-01-06 1983-07-13 Hitachi Ltd 光デイスクトラツク追跡装置
JPS58220252A (ja) * 1982-06-16 1983-12-21 Hitachi Ltd 光学式ピツクアツプのトラツキング誤差信号検出回路
US4559622A (en) * 1982-09-09 1985-12-17 Burroughs Corporation Optical memory system providing improved focus detection and control by detecting reflected beam diameter variations at spaced predetermined locations in the system
US4621353A (en) * 1982-09-09 1986-11-04 Burroughs Corporation Optical memory system providing improved focusing control and improved beam combining and separating apparatus
US4622659A (en) * 1982-09-09 1986-11-11 Burroughs Corporation Focus detection and control apparatus for maintaining accurate focusing in an optical memory system by detecting reflected beam diameter variations at spaced predetermined locations
JPS6055521A (ja) * 1983-09-05 1985-03-30 Mitsubishi Electric Corp 光デイスクヘツドの自動焦点調節装置
EP0137272B1 (en) * 1983-09-05 1991-06-19 Mitsubishi Denki Kabushiki Kaisha Automatic focusing device
NL8303560A (nl) * 1983-10-17 1985-05-17 Philips Nv Inrichting voor het weergeven van informatie van een optisch uitleesbare registratiedrager.
US4740940A (en) * 1985-03-11 1988-04-26 Matsushita Electric Industrial Co., Ltd. Optical information read apparatus
EP0300481B1 (en) * 1987-07-22 1994-12-07 Omron Tateisi Electronics Co. Apparatus for detecting inclination of optical card
US5179268A (en) * 1987-07-22 1993-01-12 Omron Tateisi Electronic Co. Apparatus for detecting inclination of an optical card
NL8702071A (nl) * 1987-09-03 1989-04-03 Philips Nv Inrichting voor het puntsgewijs aftasten van een voorwerp.
EP0317224B1 (en) * 1987-11-17 1993-08-04 Matsushita Electric Industrial Co., Ltd. Focus detection system for an optical disk drive using photo sensor elements in the far field of information pits
EP0343952A3 (en) * 1988-05-26 1991-10-30 Matsushita Electric Industrial Co., Ltd. Focus error detection system for an optical recording/reproducing system
JP2589814B2 (ja) * 1989-07-19 1997-03-12 松下電器産業株式会社 クロック抽出装置およびトラッキング誤差信号採取装置
JPH0770073B2 (ja) * 1989-08-04 1995-07-31 松下電器産業株式会社 光学ヘッド
WO1999066504A2 (en) 1998-06-15 1999-12-23 Koninklijke Philips Electronics N.V. Device for scanning an optical record carrier
US6781104B1 (en) 1998-06-16 2004-08-24 Koninklijke Philips Electronics N.V. Device for scanning an optical record carrier
EP0965981A3 (en) * 1998-06-16 2009-11-25 Koninklijke Philips Electronics N.V. Device for scanning an optical record carrier
JP5207240B2 (ja) * 2008-08-11 2013-06-12 学校法人金井学園 光記録再生媒体の焦点誤差検出方法、およびそれに用いる発光装置のビーム分割調節器

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2070474A5 (sv) * 1969-12-05 1971-09-10 Anvar
AR205243A1 (es) * 1972-05-11 1976-04-21 Philips Nv Aparato para la lectura de un portador de grabacion reflector plano
NL160138C (nl) * 1972-05-11 1979-09-17 Philips Nv Inrichting voor het uitlezen van een vlakke registratie- drager.
FR2266932B1 (sv) * 1973-03-02 1977-09-02 Thomson Brandt
FR2235448B1 (sv) * 1973-06-29 1976-05-07 Thomson Brandt
US3932700A (en) * 1974-02-04 1976-01-13 Zenith Radio Corporation Focus tracking registration for optical reproducing systems
NL7413044A (nl) * 1974-10-03 1976-04-06 Philips Nv Registratiedrager waarop een televisiesignaal is opgeslagen.
NL7413162A (nl) * 1974-10-07 1976-04-09 Philips Nv Inrichting voor het uitlezen van een schijf- vormige registratiedrager.
NL182257C (nl) * 1974-12-23 1988-02-01 Philips Nv Inrichting voor het uitlezen van een vlakke reflekterende registratiedrager waarop informatie is aangebracht in een optisch uitleesbare struktuur.
NL177157C (nl) * 1975-02-28 1985-08-01 Philips Nv Inrichting voor het uitlezen van een vlakke registratiedrager met een optisch uitleesbare informatiestruktuur.

Also Published As

Publication number Publication date
FR2339929B1 (sv) 1981-09-18
AT349230B (de) 1979-03-26
PL108352B1 (en) 1980-04-30
ES455361A1 (es) 1978-01-01
GB1572409A (en) 1980-07-30
AU2161777A (en) 1978-08-03
US4051527A (en) 1977-09-27
NO770239L (no) 1977-07-29
NO149794B (no) 1984-03-12
FR2339929A1 (fr) 1977-08-26
DE2701538C3 (de) 1981-09-10
NZ183153A (en) 1980-03-05
SE417555B (sv) 1981-03-23
DE2701538A1 (de) 1977-08-04
BE850782A (fr) 1977-07-26
NL7600843A (nl) 1977-08-01
ATA45977A (de) 1978-08-15
DK30677A (da) 1977-07-29
AU505467B2 (en) 1979-11-22
MX144032A (es) 1981-08-19
DK145866C (da) 1983-09-05
DK145866B (da) 1983-03-21
BR7700453A (pt) 1977-10-04
JPS5293223A (en) 1977-08-05
SE7700726L (sv) 1977-07-29
IT1084008B (it) 1985-05-25
DE2701538B2 (de) 1980-12-04
NO149794C (no) 1984-06-27
CH620541A5 (sv) 1980-11-28
JPS5631651B2 (sv) 1981-07-22
ZA7710B (en) 1978-08-30
CA1096494A (en) 1981-02-24

Similar Documents

Publication Publication Date Title
AR217251A1 (es) Aparato para leer un portador de grabacion
AR211720A1 (es) Aparato para leer un portador de grabacion
MX145860A (es) Mejoras en aparato para leer una portadora de grabacion
AR222497A1 (es) Aparato lector optico para la lectura de un portador de grabacion discoidal
AR216608A1 (es) Aparato lector de un portador de grabacion discoidal
AT367229B (de) Aufzeichnungstraeger
AR212969A1 (es) Aparato lector de grabaciones discoidales
MX146326A (es) Mejoras a articulo absorbente
JPS51135549A (en) Information recording optical device
AR208563A1 (es) Aparato lector de un portador de grabacion
AR209505A1 (es) Aparato para leer un portador de grabacion
ATA978876A (de) Aufzeichnungsverfahren
SE7712504L (sv) Handburen informationsformedlare
AT368655B (de) Informationsaufzeichnungstraeger
TR20085A (tr) Cift suertuenme diskli ambrayj
DD129797A5 (de) Farbstabilisierte halogenbisphenolaethylen-polycarbonate
BE861950A (fr) Porte-disques
SE7606098L (sv) Apparat for avlesning av en uppteckningsberare
IT1131628B (it) Apparecchiatura per leggere informazione
AR222496A1 (es) Aparato lector de un portador de grabacion discoidal
SE421022B (sv) Lasanordning
SE404898B (sv) Anordning for punktformig paverkan av ett informationsberande medium
ATA524777A (de) Schreibgeraet
PL199448A1 (pl) Urzadzenie wyboru informacji
SE7714903L (sv) Informationsoverforingsanordning