DD102501A2 - - Google Patents

Info

Publication number
DD102501A2
DD102501A2 DD147647A DD14764770A DD102501A2 DD 102501 A2 DD102501 A2 DD 102501A2 DD 147647 A DD147647 A DD 147647A DD 14764770 A DD14764770 A DD 14764770A DD 102501 A2 DD102501 A2 DD 102501A2
Authority
DD
German Democratic Republic
Application number
DD147647A
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
Priority claimed from DE19691927408 external-priority patent/DE1927408C3/en
Application filed filed Critical
Publication of DD102501A2 publication Critical patent/DD102501A2/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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
DD147647A 1969-05-29 1970-05-22 DD102501A2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691927408 DE1927408C3 (en) 1969-01-23 1969-05-29 Device for reproducing stored signals

Publications (1)

Publication Number Publication Date
DD102501A2 true DD102501A2 (en) 1973-12-12

Family

ID=5735535

Family Applications (1)

Application Number Title Priority Date Filing Date
DD147647A DD102501A2 (en) 1969-05-29 1970-05-22

Country Status (3)

Country Link
US (1) US3654401A (en)
JP (1) JPS515561B1 (en)
DD (1) DD102501A2 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4160269A (en) * 1971-03-04 1979-07-03 U.S. Philips Corporation Apparatus for optically reading a phase-modulated optical record carrier
US4041530A (en) * 1971-03-04 1977-08-09 U.S. Philips Corporation Video disc with phase structure
US3783196A (en) * 1971-03-22 1974-01-01 Rca Corp High-density capacitive information records and playback apparatus therefor
US3839601A (en) * 1971-07-06 1974-10-01 Gakken Co Ltd Optical record sheet and device for reproducing sound therefrom
US3902010A (en) * 1972-02-15 1975-08-26 Canon Kk Information recording device with record having layers with different intensity sensitivity
US5175725A (en) * 1972-08-25 1992-12-29 Thomson-Csf Optical disk arrangement with closed contours whose entire extent represents information
US5182743A (en) * 1972-08-25 1993-01-26 Thomson-Csf Optical disk arrangement with diffractive tracks allowing positional control
FR2197495A5 (en) * 1972-08-25 1974-03-22 Thomson Csf
US3968326A (en) * 1973-02-09 1976-07-06 Rca Corporation Trapezoidal smooth grooves for video disc
US3919465A (en) * 1974-01-14 1975-11-11 Zenith Radio Corp Optical system for directly detecting spatially recorded signals
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
US4162510A (en) * 1977-03-25 1979-07-24 Rca Corporation Keel-tipped stylus for video disc systems
US4124867A (en) * 1977-03-28 1978-11-07 Rca Corporation Narrowed-electrode pickup stylus for video disc systems
JPS5458356U (en) * 1977-09-27 1979-04-23
US4980882A (en) * 1987-04-06 1990-12-25 Storage Technology Corporation Partners Ii Optical disk for detesting and distinguishing servo tracks from data tracks
EP1291691A1 (en) * 2001-09-07 2003-03-12 Agilent Technologies, Inc. (a Delaware corporation) Glass joint for an optical fibre module and a method of joining an optical fibre to an optical module housing

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US2092892A (en) * 1935-12-31 1937-09-14 Rca Corp Phonographic apparatus
US2529050A (en) * 1946-08-28 1950-11-07 Jack R Sanders Optical sound reproducing system
US2654810A (en) * 1949-11-15 1953-10-06 Miessner Inventions Inc Photoelectric translating system
US3235672A (en) * 1961-11-17 1966-02-15 American Optical Corp Optical sound recording and reproduction

Also Published As

Publication number Publication date
US3654401A (en) 1972-04-04
JPS515561B1 (en) 1976-02-20

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