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
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →