Assignee
DOLBY LABORATORIES INC
14 granted patents·310 citations·filing 1974–1980
Top patents by PatentIndex Score
14 records- 0193US4024344ACenter channel derivation for stereophonic cinema soundDOLBY LABORATORIES INC·Filed 1975·Granted May 17, 1977·151 cites·17 claims
- 0279US4074083AStereophonic sound system particularly useful in a cinema auditoriumDOLBY LABORATORIES INC·Filed 1975·Granted Feb 14, 1978·26 cites·6 claims
- 0372US3967219ASignal compressors and expandersDOLBY LABORATORIES INC·Filed 1974·Granted Jun 29, 1976·17 cites·26 claims
- 0471US3934190ASignal compressors and expandersDOLBY LABORATORIES INC·Filed 1974·Granted Jan 20, 1976·16 cites·22 claims
- 0570US4066914AElectrically variable impedance circuitsDOLBY LABORATORIES INC·Filed 1976·Granted Jan 3, 1978·13 cites·5 claims
- 0669US4388729ASystems for reducing noise in video signals using amplitude averaging of undelayed and time delayed signalsDOLBY LABORATORIES INC·Filed 1978·Granted Jun 14, 1983·16 cites·60 claims
- 0768US3949325AAudio equalizers for large roomsDOLBY LABORATORIES INC·Filed 1974·Granted Apr 6, 1976·15 cites·8 claims
- 0863US3978409ASignal compressors and expandersDOLBY LABORATORIES INC·Filed 1974·Granted Aug 31, 1976·13 cites·59 claims
- 0957US4223188AScanning system for reproduction of optical sound tracks with clear area noise discriminator delay meansDOLBY LABORATORIES INC·Filed 1977·Granted Sep 16, 1980·8 cites·5 claims
- 1055US3932819AElectrical filtersDOLBY LABORATORIES INC·Filed 1974·Granted Jan 13, 1976·8 cites·7 claims
- 1154US4001732ACalibration oscillators for noise reduction systemsDOLBY LABORATORIES INC·Filed 1975·Granted Jan 4, 1977·10 cites·3 claims
- 1251US4338684AScanning system for reproducing side-by-side optical sound tracksDOLBY LABORATORIES INC·Filed 1980·Granted Jul 6, 1982·7 cites·2 claims
- 1349US3997850AFloating electrical output circuitDOLBY LABORATORIES INC·Filed 1975·Granted Dec 14, 1976·6 cites·2 claims
- 1444US4184055AScanning system for reproduction of optical sound tracks with clear area noise discriminator delay meansDOLBY LABORATORIES INC·Filed 1978·Granted Jan 15, 1980·4 cites·1 claims
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