Assignee
MCA DISCO VISION
29 granted patents·1,066 citations·filing 1973–1979
Top patents by PatentIndex Score
29 records- 0198US4225873ARecording and playback systemMCA DISCO VISION·Filed 1978·Granted Sep 30, 1980·100 cites·7 claims
- 0296US4232337AMethod and apparatus for tracking an optically readable information trackMCA DISCO VISION·Filed 1978·Granted Nov 4, 1980·61 cites·21 claims
- 0396US4118735ASynchronous detection tracking of video discMCA DISCO VISION·Filed 1977·Granted Oct 3, 1978·58 cites·2 claims
- 0495US4236050ASystem for recovering information from a movable information storage medium having a pilot signal with an aligned phase angle in adjacent tracksMCA DISCO VISION·Filed 1978·Granted Nov 25, 1980·51 cites·27 claims
- 0595US4234837ADigital center tracking systemMCA DISCO VISION·Filed 1979·Granted Nov 18, 1980·52 cites·17 claims
- 0695US4228326ASystem for recording information on a rotatable storage disc, in a substantially uniform recording densityMCA DISCO VISION·Filed 1978·Granted Oct 14, 1980·54 cites·8 claims
- 0795US3997715AFocusing system for videodisc playerMCA DISCO VISION·Filed 1974·Granted Dec 14, 1976·61 cites·15 claims
- 0893US4236105ADigital center tracking systemMCA DISCO VISION·Filed 1979·Granted Nov 25, 1980·42 cites·8 claims
- 0993US4232201ADithered center tracking systemMCA DISCO VISION·Filed 1978·Granted Nov 4, 1980·53 cites·14 claims
- 1093US4190860ADigital method and apparatus for rotating an information storage discMCA DISCO VISION·Filed 1978·Granted Feb 26, 1980·84 cites·23 claims
- 1193US3944727AVideo disc player with movable mirror for directing light beam onto reflective discMCA DISCO VISION·Filed 1974·Granted Mar 16, 1976·38 cites·5 claims
- 1291US4211617AProcess for producing a stamper for videodisc purposesMCA DISCO VISION·Filed 1978·Granted Jul 8, 1980·45 cites·2 claims
- 1390US4152586AOptical transducer and focusing systemMCA DISCO VISION·Filed 1978·Granted May 1, 1979·42 cites·56 claims
- 1489US4223349ASystem for rotating an information storage disc at a variable angular velocity to recover information therefrom at a prescribed constant rateMCA DISCO VISION·Filed 1978·Granted Sep 16, 1980·32 cites·26 claims
- 1584US4204199AMethod and means for encoding and decoding digital dataMCA DISCO VISION·Filed 1978·Granted May 20, 1980·29 cites·7 claims
- 1683US4185955AApparatus for replicating centrally apertured video disc recordsMCA DISCO VISION·Filed 1978·Granted Jan 29, 1980·48 cites·2 claims
- 1780US4264911AOptical recording disc and related method of manufactureMCA DISCO VISION·Filed 1979·Granted Apr 28, 1981·20 cites·6 claims
- 1880US4260360AMethod and means for replicating centrally apertured video disc recordsMCA DISCO VISION·Filed 1978·Granted Apr 7, 1981·43 cites·5 claims
- 1978US4252327AVideo disc playerMCA DISCO VISION·Filed 1979·Granted Feb 24, 1981·20 cites·4 claims
- 2076US4232388AMethod and means for encoding and decoding digital dataMCA DISCO VISION·Filed 1978·Granted Nov 4, 1980·33 cites·1 claims
- 2173US3954469AMethod of creating a replicating matrixMCA DISCO VISION·Filed 1973·Granted May 4, 1976·17 cites·3 claims
- 2271US4130620AMethod for making video discs and video disc moldsMCA DISCO VISION·Filed 1976·Granted Dec 19, 1978·13 cites·3 claims
- 2365US4124672AReplication utilizing a casting processMCA DISCO VISION·Filed 1976·Granted Nov 7, 1978·19 cites·17 claims
- 2463US4358802AFluid cushion turntable for video disc playerMCA DISCO VISION·Filed 1973·Granted Nov 9, 1982·10 cites·11 claims
- 2562US4141731AMethod of creating a replicating matrixMCA DISCO VISION·Filed 1976·Granted Feb 27, 1979·11 cites·12 claims
- 2662US4006294ATransducer head assembly with fluid bearing and head height control systemMCA DISCO VISION·Filed 1975·Granted Feb 1, 1977·11 cites·13 claims
- 2759US3947888AHydrodynamic bearing head providing constant spacingMCA DISCO VISION·Filed 1973·Granted Mar 30, 1976·9 cites·10 claims
- 2838US4241698AVacuum evaporation system for the deposition of a thin evaporated layer having a high degree of uniformityMCA DISCO VISION·Filed 1979·Granted Dec 30, 1980·6 cites·5 claims
- 2931US4256374AWrite and read objective lens for high density storageMCA DISCO VISION·Filed 1979·Granted Mar 17, 1981·4 cites·5 claims
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