NL7000855A - - Google Patents

Info

Publication number
NL7000855A
NL7000855A NL7000855A NL7000855A NL7000855A NL 7000855 A NL7000855 A NL 7000855A NL 7000855 A NL7000855 A NL 7000855A NL 7000855 A NL7000855 A NL 7000855A NL 7000855 A NL7000855 A NL 7000855A
Authority
NL
Netherlands
Application number
NL7000855A
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 filed Critical
Publication of NL7000855A publication Critical patent/NL7000855A/xx

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
    • G11B7/24—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
    • 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
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • 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
    • 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
NL7000855A 1969-01-23 1970-01-21 NL7000855A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1903822A DE1903822C3 (de) 1969-01-23 1969-01-23 Vorrichtung zur Wiedergabe auf einem Trager gespeicherter Signale, Aufzeichnungs verfahren für einen Trager sowie Trager zur Wiedergabe mit der Vorrichtung

Publications (1)

Publication Number Publication Date
NL7000855A true NL7000855A (xx) 1970-07-27

Family

ID=5723429

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7000855A NL7000855A (xx) 1969-01-23 1970-01-21

Country Status (6)

Country Link
US (3) US3798386A (xx)
AT (1) AT308419B (xx)
DE (1) DE1903822C3 (xx)
FR (1) FR2037323A5 (xx)
GB (1) GB1286546A (xx)
NL (1) NL7000855A (xx)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3909517A (en) * 1971-03-22 1975-09-30 Rca Corp Disc records with groove bottom depth variations
US5182743A (en) * 1972-08-25 1993-01-26 Thomson-Csf Optical disk arrangement with diffractive tracks allowing positional control
FR2197495A5 (xx) * 1972-08-25 1974-03-22 Thomson Csf
US5175725A (en) * 1972-08-25 1992-12-29 Thomson-Csf Optical disk arrangement with closed contours whose entire extent represents information
NL7211998A (xx) * 1972-09-02 1974-03-05
US4703467A (en) * 1972-10-24 1987-10-27 Discovision Associates Video disc read back scanner
US3944727A (en) * 1972-10-24 1976-03-16 Mca Discovision, Inc. Video disc player with movable mirror for directing light beam onto reflective disc
JPS5410841B2 (xx) * 1972-10-26 1979-05-10
NL7314267A (nl) * 1973-10-17 1975-04-21 Philips Nv Registratiedrager waarop informatie is aangebracht in een optisch uitleesbare struktuur.
US3919465A (en) * 1974-01-14 1975-11-11 Zenith Radio Corp Optical system for directly detecting spatially recorded signals
US3931460A (en) * 1974-02-04 1976-01-06 Zenith Radio Corporation Video disc with multiturn undulating storage track
JPS5760693B2 (xx) * 1974-02-12 1982-12-21 Sony Corp
US3919562A (en) * 1974-05-20 1975-11-11 Zenith Radio Corp Slit detector for optical detector system
US3980811A (en) * 1974-09-03 1976-09-14 Nihon Denshi Kabushiki Kaisha Contacting pickup optical reproduction system
GB1509495A (en) * 1976-04-08 1978-05-04 Sony Corp Record disc and method of producing the same
GB1574595A (en) * 1977-03-15 1980-09-10 Rca Corp Video disc
NL7907180A (nl) * 1979-09-27 1981-03-31 Philips Nv Registratiedrager waarin informatie is aangebracht in een optisch uitleesbare informatiestruktuur, alsmede inrichting voor het uitlezen daarvan.
US4504934A (en) * 1980-05-02 1985-03-12 Matsushita Electric Industrial Co., Ltd. Optical signal reproducing apparatus
JPS57105828A (en) * 1980-12-19 1982-07-01 Matsushita Electric Ind Co Ltd Optical disk recording and reproducing system
WO1985003376A1 (en) * 1984-01-30 1985-08-01 Illuminated Data, Inc. Optical data storage and readout apparatus
JP3173839B2 (ja) * 1992-01-17 2001-06-04 パイオニア株式会社 記録媒体用情報再生装置及び再生方法
CN108873117B (zh) * 2017-05-16 2020-04-21 昇印光电（昆山）股份有限公司 光学元件、手机盖板及制备光学元件的模具

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB304848A (en) * 1927-10-31 1929-01-31 Brenchley Ernest George Mittel Improvements in or relating to sound recording
US1917003A (en) * 1929-01-21 1933-07-04 Columbia Phono Graph Company I Reproduction of sound records
US1944202A (en) * 1929-10-04 1934-01-23 Columbia Phonograph Co Inc Apparatus for reproducing sound from records
US1956626A (en) * 1931-03-14 1934-05-01 Percy A Robbins Translucent sound record
US2092892A (en) * 1935-12-31 1937-09-14 Rca Corp Phonographic apparatus
US2497142A (en) * 1941-12-18 1950-02-14 Shepherd Judson O'd Sound recorder and reproducer
US2654810A (en) * 1949-11-15 1953-10-06 Miessner Inventions Inc Photoelectric translating system
US3287563A (en) * 1962-11-07 1966-11-22 Minnesota Mining & Mfg Spatial coherent reproducing system
US3403233A (en) * 1964-03-05 1968-09-24 Duane H. Cooper Method of making grooved records with compensation for reproduction errors

Also Published As

Publication number Publication date
DE1903822B2 (de) 1973-03-15
DE1903822C3 (de) 1973-12-13
DE1903822A1 (de) 1970-11-26
GB1286546A (en) 1972-08-23
FR2037323A5 (xx) 1970-12-31
AT308419B (de) 1973-07-10
US3798386A (en) 1974-03-19
US3798388A (en) 1974-03-19
US3818148A (en) 1974-06-18

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Legal Events

Date Code Title Description
BV The patent application has lapsed