SE438929B - Forfarande for lagring av information av separata, sma variationer i reflektans eller transmission av ljus fran en materialplatta och apparat for utovning av forfarandet - Google Patents

Forfarande for lagring av information av separata, sma variationer i reflektans eller transmission av ljus fran en materialplatta och apparat for utovning av forfarandet

Info

Publication number
SE438929B
SE438929B SE7803292A SE7803292A SE438929B SE 438929 B SE438929 B SE 438929B SE 7803292 A SE7803292 A SE 7803292A SE 7803292 A SE7803292 A SE 7803292A SE 438929 B SE438929 B SE 438929B
Authority
SE
Sweden
Prior art keywords
film
light beam
information
modulated
stored
Prior art date
Application number
SE7803292A
Other languages
English (en)
Swedish (sv)
Other versions
SE7803292L (sv
Inventor
H F Frohbach
R E Myers
N A Peppers
T L Siwecki
L F Schaefer
Original Assignee
World Dev Lab
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 World Dev Lab filed Critical World Dev Lab
Publication of SE7803292L publication Critical patent/SE7803292L/xx
Publication of SE438929B publication Critical patent/SE438929B/sv

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/32—Maintaining desired spacing between record carrier and head, e.g. by fluid-dynamic spacing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/24—Arrangements for providing constant relative speed between record carrier and head
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/36—Monitoring, i.e. supervising the progress of recording or 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
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/0037—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs
    • 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
    • G11B7/095—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 discs, e.g. for compensation of eccentricity or wobble
    • G11B7/0953—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 discs, e.g. for compensation of eccentricity or wobble to compensate for eccentricity of the disc or disc tracks
    • 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
    • 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
    • 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
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
    • G11B9/04—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using record carriers having variable electric resistance; Record carriers therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/21—Intermediate information storage
    • H04N1/2166—Intermediate information storage for mass storage, e.g. in document filing systems
    • H04N1/217—Interfaces allowing access to a single user
    • H04N1/2175—Interfaces allowing access to a single user with local image input
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
SE7803292A 1977-03-24 1978-03-22 Forfarande for lagring av information av separata, sma variationer i reflektans eller transmission av ljus fran en materialplatta och apparat for utovning av forfarandet SE438929B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US78105677A 1977-03-24 1977-03-24

Publications (2)

Publication Number Publication Date
SE7803292L SE7803292L (sv) 1978-09-25
SE438929B true SE438929B (sv) 1985-05-13

Family

ID=25121529

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7803292A SE438929B (sv) 1977-03-24 1978-03-22 Forfarande for lagring av information av separata, sma variationer i reflektans eller transmission av ljus fran en materialplatta och apparat for utovning av forfarandet

Country Status (9)

Country Link
JP (1) JPS53119005A (de)
AU (1) AU520835B2 (de)
BR (1) BR7801789A (de)
CA (1) CA1115838A (de)
DE (1) DE2812886A1 (de)
FR (1) FR2385170B1 (de)
GB (1) GB1602893A (de)
NL (1) NL7803200A (de)
SE (1) SE438929B (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4205339A (en) * 1978-07-20 1980-05-27 Eastman Kodak Company Frame storage and retrieval wherein the frame fields are quadrature amplitude modulated on a single carrier
BE871326A (fr) * 1978-10-23 1979-04-17 Mca Disco Vision Procede et dispositif d'enregistrement et de reproduction d'un signal video.
USRE32431E (en) * 1978-11-16 1987-06-02 Discovision Associates System for rotating an information storage disc at a variable angular velocity to recover information therefrom at a prescribed constant rate
US4229808A (en) * 1978-12-21 1980-10-21 Ncr Corporation Method for recording multiple data segments on a storage disc with eccentricity factor
US4264986A (en) * 1979-03-12 1981-04-28 Willis Craig I Information-recording process & apparatus
US4290122A (en) * 1979-05-14 1981-09-15 Xerox Corporation Self-synchronizing clock source for optical memories
US4268840A (en) * 1979-07-27 1981-05-19 Xerox Corporation Optical recording member
JPS5621893A (en) * 1979-07-27 1981-02-28 Xerox Corp Optical recording part
JPS57208639A (en) * 1981-06-18 1982-12-21 Toshiba Corp Recording method of disk
JPS58194149A (ja) * 1982-05-08 1983-11-12 Asahi Optical Co Ltd 光学的記録担体からの情報読取り装置
CA1198209A (en) * 1983-11-24 1985-12-17 Northern Telecom Limited Optical disc
JPS60236119A (ja) * 1984-05-09 1985-11-22 Toshiba Corp 光学式情報記録再生装置

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE702967C (de) * 1938-03-15 1941-02-20 Ernst Bergmann Verfahren zur Aufnahme und Wiedergabe von Lichttonaufzeichnungen
US3365706A (en) * 1964-04-15 1968-01-23 Gilbert W. King Photo-optical data storage and retrieval system employing error detection and error location identification components
FR1471797A (fr) * 1965-03-20 1967-03-03 Bosch Gmbh Robert Procédé et dispositif d'enregistrement d'informations
US3665483A (en) * 1969-06-06 1972-05-23 Chase Manhattan Capital Corp Laser recording medium
US3774172A (en) * 1972-03-23 1973-11-20 D Silverman Random access multiple disc optical information storage system
FR2212070A6 (de) * 1972-08-25 1974-07-19 Thomson Csf
NL7212015A (de) * 1972-09-04 1974-03-06
NL174591C (nl) * 1973-02-09 1984-07-02 Philips Nv Schijfvormig registratiedragerlichaam.
CA1013854A (en) * 1973-02-20 1977-07-12 John S. Winslow Videodisc mastering system
NL165316C (nl) * 1973-10-01 1981-03-16 Mca Disco Vision Werkwijze voor de vervaardiging van een schrijfvormige video-afdrukmatrijs uitgaande van een moederschijf.
JPS50136051A (de) * 1974-04-15 1975-10-28
JPS5444524B2 (de) * 1974-09-13 1979-12-26
JPS5842527B2 (ja) * 1975-02-08 1983-09-20 ティアック株式会社 デイスクジヨウキロクバイタイヘノ ジヨウホウシンゴウノキロクホウホウ
DE2522405C2 (de) * 1975-05-21 1982-04-15 Philips Patentverwaltung Gmbh, 2000 Hamburg Optisches Mehrkanal-Plattenspeichersystem zum Speichern von digitaler Information
FR2366636A1 (fr) * 1976-10-01 1978-04-28 Thomson Brandt Dispositif d'enregistrement optique d'information sur un support avec asservissement de la position de la tache d'enregistrement sur le support d'information

Also Published As

Publication number Publication date
AU520835B2 (en) 1982-03-04
DE2812886A1 (de) 1978-10-26
JPS6244333B2 (de) 1987-09-19
BR7801789A (pt) 1979-01-02
AU3423278A (en) 1979-09-20
SE7803292L (sv) 1978-09-25
FR2385170B1 (fr) 1985-08-09
NL7803200A (nl) 1978-09-26
JPS53119005A (en) 1978-10-18
GB1602893A (en) 1981-11-18
FR2385170A1 (fr) 1978-10-20
CA1115838A (en) 1982-01-05

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