DE2462833C2 - Optische Anordnung zur Wiedergewinnung eines modelierten Signals - Google Patents

Optische Anordnung zur Wiedergewinnung eines modelierten Signals

Info

Publication number
DE2462833C2
DE2462833C2 DE2462833A DE2462833A DE2462833C2 DE 2462833 C2 DE2462833 C2 DE 2462833C2 DE 2462833 A DE2462833 A DE 2462833A DE 2462833 A DE2462833 A DE 2462833A DE 2462833 C2 DE2462833 C2 DE 2462833C2
Authority
DE
Germany
Prior art keywords
light
light beam
optical
objective lens
storage element
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
DE2462833A
Other languages
German (de)
English (en)
Inventor
John Seymour Altadena Calif. Winslow
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Discovision Associates
Original Assignee
Discovision Associates Costa Mesa Calif
Discovision Associates
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 Discovision Associates Costa Mesa Calif, Discovision Associates filed Critical Discovision Associates Costa Mesa Calif
Application granted granted Critical
Publication of DE2462833C2 publication Critical patent/DE2462833C2/de
Expired legal-status Critical Current

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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/128—Modulators
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/03—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect
    • G02F1/0327—Operation of the cell; Circuit arrangements
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/1608—Error detection by comparing the output signals of redundant hardware
    • G06F11/1612—Error detection by comparing the output signals of redundant hardware where the redundant component is persistent storage
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/02—Analogue recording or reproducing
    • G11B20/06—Angle-modulation recording or reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/22—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing distortions
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0045—Recording
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005—Reproducing
    • 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
    • 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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08547—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements
    • 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
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
    • G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam
    • G11C13/048—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam using other optical storage elements

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Television Signal Processing For Recording (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
DE2462833A 1973-02-20 1974-01-24 Optische Anordnung zur Wiedergewinnung eines modelierten Signals Expired DE2462833C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US33356073A 1973-02-20 1973-02-20

Publications (1)

Publication Number Publication Date
DE2462833C2 true DE2462833C2 (de) 1983-02-10

Family

ID=23303311

Family Applications (6)

Application Number Title Priority Date Filing Date
DE2463376A Expired DE2463376C2 (de) 1973-02-20 1974-01-24 Verfahren zur Video-Informationsaufzeichnung
DE742403408A Expired DE2403408C3 (de) 1973-02-20 1974-01-24 Vorrichtung zum Aufzeichnen von Videoinformation auf eine Platte
DE2462834A Expired DE2462834C2 (de) 1973-02-20 1974-01-24 Vorrichtung zur Video-Informationsaufzeichnung
DE2462833A Expired DE2462833C2 (de) 1973-02-20 1974-01-24 Optische Anordnung zur Wiedergewinnung eines modelierten Signals
DE2462831A Expired DE2462831C2 (de) 1973-02-20 1974-01-24 Informationsverarbeitungsvorrichtung
DE2462835A Expired DE2462835C2 (de) 1973-02-20 1974-01-24 Vorrichtung zur Speicherung von Informationen auf einem Speicherelement

Family Applications Before (3)

Application Number Title Priority Date Filing Date
DE2463376A Expired DE2463376C2 (de) 1973-02-20 1974-01-24 Verfahren zur Video-Informationsaufzeichnung
DE742403408A Expired DE2403408C3 (de) 1973-02-20 1974-01-24 Vorrichtung zum Aufzeichnen von Videoinformation auf eine Platte
DE2462834A Expired DE2462834C2 (de) 1973-02-20 1974-01-24 Vorrichtung zur Video-Informationsaufzeichnung

Family Applications After (2)

Application Number Title Priority Date Filing Date
DE2462831A Expired DE2462831C2 (de) 1973-02-20 1974-01-24 Informationsverarbeitungsvorrichtung
DE2462835A Expired DE2462835C2 (de) 1973-02-20 1974-01-24 Vorrichtung zur Speicherung von Informationen auf einem Speicherelement

Country Status (7)

Country Link
JP (12) JPS502415A (enrdf_load_stackoverflow)
CA (1) CA1013854A (enrdf_load_stackoverflow)
DE (6) DE2463376C2 (enrdf_load_stackoverflow)
FR (6) FR2218612B1 (enrdf_load_stackoverflow)
GB (1) GB1462791A (enrdf_load_stackoverflow)
IT (1) IT1008245B (enrdf_load_stackoverflow)
NL (5) NL7402289A (enrdf_load_stackoverflow)

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CA1074005A (en) * 1975-03-10 1980-03-18 James T. Russell Recording and playback system
AU520835B2 (en) * 1977-03-24 1982-03-04 World Development Laboratories Optical recording system and method
NL7802860A (nl) * 1978-03-16 1979-09-18 Philips Nv Registratiedragerlichaam en registratiedrager voor optische informatie en inrichting voor het inschrijven en uitlezen.
DK69079A (da) * 1978-03-27 1979-09-28 Mca Disco Vision Fremgangsmaade og apparat til lagring af vidioinformation paa et informationslagerorgan
EP0045117B2 (en) * 1978-03-27 1994-01-12 Discovision Associates Apparatus and method for writing a signal information track on a disc
JPS54146613A (en) * 1978-05-10 1979-11-16 Hitachi Ltd Optical head
DK153610C (da) * 1978-09-22 1988-12-12 Discovision Ass Fremgangsmaade til skrivning af et informationsspor paa en plade
DK153609C (da) * 1978-09-22 1988-12-19 Discovision Ass Fremgangsmaade og apparat til skrivning af et signalinformationsspor paa en plade
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JPS605926B2 (ja) * 1978-11-22 1985-02-14 三菱電機株式会社 光変調装置
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US4574371A (en) * 1982-02-20 1986-03-04 Olympus Optical Company Limited Apparatus for recording and reproducing information on an optical disc
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JPS6129421A (ja) * 1984-06-15 1986-02-10 Olympus Optical Co Ltd 光学式記録媒体の欠陥検出方法
JPS61109239A (ja) * 1984-11-01 1986-05-27 松下電工株式会社 接点開閉装置
JPS61184741A (ja) * 1985-02-12 1986-08-18 Fujitsu Ltd 光学的記録再生装置
US4667256A (en) * 1985-11-25 1987-05-19 Eastman Kodak Company Circuit for electro-optic modulators
JPS62252876A (ja) * 1986-04-23 1987-11-04 鹿島建設株式会社 冷凍庫
JPH0614570B2 (ja) * 1987-04-28 1994-02-23 シャープ株式会社 光出力安定化方法および該方法に使用する光検出器
JPH0262734A (ja) * 1988-08-30 1990-03-02 Hitachi Ltd 分離形光ヘッド
US6141300A (en) 1989-06-20 2000-10-31 Discovision Associates Optical actuator including lens assembly with optical axis having symmetric suspensory forces acting thereon and optical disc system including same
US5265079A (en) 1991-02-15 1993-11-23 Applied Magnetics Corporation Seek actuator for optical recording
DE4030970C2 (de) * 1990-10-01 1996-07-11 Blaupunkt Werke Gmbh Verfahren zur Regelung der Lichtleistung einer Laserdiode zum Auslesen optischer Speicherplatten und Abspielgerät dazu
US6069857A (en) 1991-02-15 2000-05-30 Discovision Associates Optical disc system having improved circuitry for performing blank sector check on readable disc
US5677899A (en) 1991-02-15 1997-10-14 Discovision Associates Method for moving carriage assembly from initial position to target position relative to storage medium
US6236625B1 (en) 1991-02-15 2001-05-22 Discovision Associates Optical disc system having current monitoring circuit with controller for laser driver and method for operating same
US5729511A (en) 1991-02-15 1998-03-17 Discovision Associates Optical disc system having servo motor and servo error detection assembly operated relative to monitored quad sum signal
JPH04349236A (ja) * 1991-05-27 1992-12-03 Pioneer Electron Corp 光ピックアップ装置
JP2555239B2 (ja) * 1991-11-01 1996-11-20 株式会社日立製作所 光情報記録再生方法
JPH071764U (ja) * 1993-06-11 1995-01-13 ダイワ精工株式会社 魚釣用リールのドラグ力調節体
JPH07185243A (ja) * 1993-12-24 1995-07-25 Nippon Spindle Mfg Co Ltd 集塵装置
US5748578A (en) 1995-01-25 1998-05-05 Discovision Associates Colpitts type oscillator having reduced ringing and improved optical disc system utilizing same
US6434087B1 (en) 1995-01-25 2002-08-13 Discovision Associates Optical disc system and method for controlling bias coil and light source to process information on a storage medium
US6091684A (en) 1995-01-25 2000-07-18 Discovision Associates Optical disc system and method for changing the rotational rate of an information storage medium
US5920539A (en) 1995-01-25 1999-07-06 Discovision Associates Apparatus and method for suppression of electromagnetic emissions having a groove on an external surface for passing an electrical conductor
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Publication number Priority date Publication date Assignee Title
US3396266A (en) * 1964-05-25 1968-08-06 Ibm Optical information read-out system
DE1905972A1 (de) * 1968-06-28 1970-02-26 Gauss Electrophysics Inc UEbertragungsvorrichtung fuer Fernsehsignale
DE2016075A1 (de) * 1969-04-03 1970-10-08 RCA Corp., New York, N.I. (V.St.A.) Verfahren und Vorrichtung zum Aufzeichnen elektrischer Signale auf ein lichtempfindliches Aufzeichnungsmedium
US3625617A (en) * 1970-07-15 1971-12-07 Honeywell Inc Kerr effect read-out system for an optical memory
US3696344A (en) * 1970-02-19 1972-10-03 Energy Conversion Devices Inc Optical mass memory employing amorphous thin films
DE2113717A1 (de) * 1971-03-22 1972-10-12 Philips Patentverwaltung Bild-Ton-Magnetband

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US3396266A (en) * 1964-05-25 1968-08-06 Ibm Optical information read-out system
DE1905972A1 (de) * 1968-06-28 1970-02-26 Gauss Electrophysics Inc UEbertragungsvorrichtung fuer Fernsehsignale
DE2016075A1 (de) * 1969-04-03 1970-10-08 RCA Corp., New York, N.I. (V.St.A.) Verfahren und Vorrichtung zum Aufzeichnen elektrischer Signale auf ein lichtempfindliches Aufzeichnungsmedium
US3696344A (en) * 1970-02-19 1972-10-03 Energy Conversion Devices Inc Optical mass memory employing amorphous thin films
US3625617A (en) * 1970-07-15 1971-12-07 Honeywell Inc Kerr effect read-out system for an optical memory
DE2113717A1 (de) * 1971-03-22 1972-10-12 Philips Patentverwaltung Bild-Ton-Magnetband

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Internationale Elektronische Rundschau, 1972, Nr. 10, S. 243-244 *

Also Published As

Publication number Publication date
GB1462791A (en) 1977-01-26
JPS6235170B2 (enrdf_load_stackoverflow) 1987-07-31
FR2399089B1 (enrdf_load_stackoverflow) 1982-12-03
NL8800809A (nl) 1988-07-01
NL8800807A (nl) 1988-07-01
DE2462835C2 (de) 1983-03-24
JPS6338771B2 (enrdf_load_stackoverflow) 1988-08-02
FR2399090B1 (enrdf_load_stackoverflow) 1982-12-03
FR2399086A1 (fr) 1979-02-23
IT1008245B (it) 1976-11-10
JPS5732411B2 (enrdf_load_stackoverflow) 1982-07-10
FR2399089A1 (fr) 1979-02-23
JPS502415A (enrdf_load_stackoverflow) 1975-01-11
FR2399086B1 (enrdf_load_stackoverflow) 1982-12-03
DE2403408B2 (de) 1978-06-29
DE2403408C3 (de) 1979-03-01
JPS5525892A (en) 1980-02-23
DE2462834C2 (de) 1988-08-18
JPS6224440A (ja) 1987-02-02
FR2218612B1 (enrdf_load_stackoverflow) 1980-03-07
JPS58161143A (ja) 1983-09-24
JPS5525889A (en) 1980-02-23
FR2218612A1 (enrdf_load_stackoverflow) 1974-09-13
DE2463376C2 (de) 1985-10-17
FR2399088A1 (fr) 1979-02-23
FR2399087A1 (fr) 1979-02-23
JPS5525891A (en) 1980-02-23
JPS5525890A (en) 1980-02-23
NL8800806A (nl) 1988-07-01
JPS58161159A (ja) 1983-09-24
FR2399090A1 (fr) 1979-02-23
JPS5525888A (en) 1980-02-23
DE2462831C2 (de) 1983-03-24
JPS5736649B2 (enrdf_load_stackoverflow) 1982-08-05
JPS57147140A (en) 1982-09-10
FR2399088B1 (enrdf_load_stackoverflow) 1982-12-03
NL7402289A (enrdf_load_stackoverflow) 1974-08-22
FR2399087B1 (enrdf_load_stackoverflow) 1982-12-03
JPS571052B2 (enrdf_load_stackoverflow) 1982-01-09
JPS5732412B2 (enrdf_load_stackoverflow) 1982-07-10
NL8800808A (nl) 1988-07-01
DE2403408A1 (de) 1974-08-29
JPS6224441A (ja) 1987-02-02
JPS58161153A (ja) 1983-09-24
CA1013854A (en) 1977-07-12

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