ATA939873A - Vorrichtung zum auslesen von informationen - Google Patents

Vorrichtung zum auslesen von informationen

Info

Publication number
ATA939873A
ATA939873A AT939873A AT939873A ATA939873A AT A939873 A ATA939873 A AT A939873A AT 939873 A AT939873 A AT 939873A AT 939873 A AT939873 A AT 939873A AT A939873 A ATA939873 A AT A939873A
Authority
AT
Austria
Prior art keywords
reading information
reading
information
Prior art date
Application number
AT939873A
Other languages
English (en)
Other versions
AT330259B (de
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 ATA939873A publication Critical patent/ATA939873A/de
Application granted granted Critical
Publication of AT330259B publication Critical patent/AT330259B/de

Links

Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00Control of position or direction
    • G05D3/12Control of position or direction using feedback
    • G05D3/14Control of position or direction using feedback using an analogue comparing device
    • 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
    • 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
    • G11B7/095Disposition 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 discs, e.g. for compensation of eccentricity or wobble
    • G11B7/0953Disposition 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 discs, e.g. for compensation of eccentricity or wobble to compensate for eccentricity of the disc or disc tracks

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
AT939873A 1972-11-11 1973-11-08 Vorrichtung zum auslesen von informationen AT330259B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7215307A NL7215307A (de) 1972-11-11 1972-11-11

Publications (2)

Publication Number Publication Date
ATA939873A true ATA939873A (de) 1975-09-15
AT330259B AT330259B (de) 1976-06-25

Family

ID=19817347

Family Applications (1)

Application Number Title Priority Date Filing Date
AT939873A AT330259B (de) 1972-11-11 1973-11-08 Vorrichtung zum auslesen von informationen

Country Status (17)

Country Link
US (1) US3876827A (de)
JP (1) JPS5420121B2 (de)
AT (1) AT330259B (de)
BE (1) BE807160A (de)
BR (1) BR7308762D0 (de)
CA (1) CA994909A (de)
CH (1) CH580843A5 (de)
DE (1) DE2353901A1 (de)
DK (1) DK137906B (de)
ES (1) ES420410A1 (de)
FR (1) FR2206550B1 (de)
GB (1) GB1452329A (de)
IT (1) IT999743B (de)
NL (1) NL7215307A (de)
NO (1) NO141135C (de)
SE (1) SE395783B (de)
ZA (1) ZA738174B (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4703467A (en) * 1972-10-24 1987-10-27 Discovision Associates Video disc read back scanner
US4282598A (en) * 1972-10-24 1981-08-04 Discovision Associates Video disc read back scanner
JPS49106305A (de) * 1973-02-08 1974-10-08
FR2251876B1 (de) * 1973-11-16 1977-09-23 Thomson Brandt
US4001494A (en) * 1974-11-01 1977-01-04 Zenith Radio Corporation Photoreceptor matrix for optical video playback system
JPS6011374B2 (ja) * 1975-02-05 1985-03-25 株式会社日立製作所 情報再生方法及びその装置
JPS5271413U (de) * 1975-11-21 1977-05-27
US4074085A (en) * 1976-03-31 1978-02-14 Eli S. Jacobs Multiple beam optical record playback apparatus for simultaneous scan of plural data tracks
NL7608561A (nl) * 1976-08-02 1978-02-06 Philips Nv Optische uitleeseenheid voor het aftasten van een registratiedrager voorzien van een stra- lingsreflekterende informatiestruktuur.
US4087842A (en) * 1976-11-05 1978-05-02 Graham Magnetics Inc. Recording track eccentricity compensation method and means
JPS54102107A (en) * 1978-01-30 1979-08-11 Hitachi Ltd Control information detecting method
US4365324A (en) * 1980-11-19 1982-12-21 Rca Corporation Eccentricity control device
JPS5812170A (ja) * 1981-07-14 1983-01-24 Victor Co Of Japan Ltd 円盤状情報記録媒体再生装置のジツタ補正回路
GB2136163A (en) * 1983-02-15 1984-09-12 Gen Electric Light Beam Stabilizer
JPH077510B2 (ja) * 1988-05-31 1995-01-30 アルプス電気株式会社 光学式ピックアップにおけるビームスプリッタの固定構造
US5268564A (en) 1990-08-03 1993-12-07 Symbol Technologies, Inc. Bar code scanner actuated by detection of scanner motion
JPH05210868A (ja) * 1992-01-30 1993-08-20 Hitachi Ltd マルチビーム分離形光ヘツド

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3361873A (en) * 1962-05-07 1968-01-02 Minnesota Mining & Mfg Disc recording system
US3381086A (en) * 1962-08-16 1968-04-30 Minnesota Mining & Mfg Reproduction of television signals from photographic disc recordings

Also Published As

Publication number Publication date
BE807160A (fr) 1974-05-09
AT330259B (de) 1976-06-25
ES420410A1 (es) 1976-04-16
IT999743B (it) 1976-03-10
JPS5420121B2 (de) 1979-07-20
CA994909A (en) 1976-08-10
SE395783B (sv) 1977-08-22
DE2353901A1 (de) 1974-05-16
FR2206550B1 (de) 1976-10-01
US3876827A (en) 1975-04-08
NO141135C (no) 1980-01-16
GB1452329A (en) 1976-10-13
NL7215307A (de) 1974-05-14
DK137906B (da) 1978-05-29
BR7308762D0 (pt) 1974-09-05
FR2206550A1 (de) 1974-06-07
NO141135B (no) 1979-10-08
JPS50802A (de) 1975-01-07
DK137906C (de) 1978-11-13
DE2353901C2 (de) 1987-01-08
ZA738174B (en) 1975-05-28
AU6231773A (en) 1975-05-15
CH580843A5 (de) 1976-10-15

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee