Assignee
STUDER WILLI AG
CH·22 granted patents·253 citations·filing 1983–1990
Top patents by PatentIndex Score
22 records- 0188US4825398AMethod and apparatus for converting an input scanning sequence into an output scanning sequenceSTUDER WILLI AG·Filed 1984·Granted Apr 25, 1989·32 cites·6 claims
- 0278US4780892AScanning frequency synchronization method and apparatusSTUDER WILLI AG·Filed 1985·Granted Oct 25, 1988·23 cites·16 claims
- 0376US4564918AMethod and apparatus for measuring the time difference between two sampling timesSTUDER WILLI AG·Filed 1983·Granted Jan 14, 1986·39 cites·22 claims
- 0471US4562489AApparatus for recording of digital dataSTUDER WILLI AG·Filed 1984·Granted Dec 31, 1985·15 cites·29 claims
- 0563US4620238AMethod and apparatus for recording and replay of digital audio dataSTUDER WILLI AG·Filed 1984·Granted Oct 28, 1986·11 cites·20 claims
- 0655US4908771AMethod of, and apparatus for, processing distorted pulsed signalsSTUDER WILLI AG·Filed 1987·Granted Mar 13, 1990·14 cites·10 claims
- 0752US4591926ATechnique for editing interleaved digital audio dataSTUDER WILLI AG·Filed 1984·Granted May 27, 1986·7 cites·24 claims
- 0850US4821298AMethod and apparatus for reproducing digitized signalsSTUDER WILLI AG·Filed 1984·Granted Apr 11, 1989·6 cites·18 claims
- 0949US4700712AMethod for determining the starting point and the end point of closed spatial signal patternsSTUDER WILLI AG·Filed 1986·Granted Oct 20, 1987·36 cites·8 claims
- 1043US4709278AMethod and apparatus for producing and selectively equalizing a temporal relationship between series of digital signalsSTUDER WILLI AG·Filed 1985·Granted Nov 24, 1987·5 cites·13 claims
- 1141US4672527AMethod and apparatus for supplying a system for processing electrical signalsSTUDER WILLI AG·Filed 1984·Granted Jun 9, 1987·6 cites·17 claims
- 1241US4587976AMethod of, and apparatus for, determining the starting point and the end point of closed signal patternsSTUDER WILLI AG·Filed 1985·Granted May 13, 1986·25 cites·33 claims
- 1341US4567443ALow-distortion audio amplifier circuit arrangementSTUDER WILLI AG·Filed 1985·Granted Jan 28, 1986·6 cites·12 claims
- 1436US4748519AMethod and apparatus for recording and reproducing coded digital signalsSTUDER WILLI AG·Filed 1985·Granted May 31, 1988·4 cites·20 claims
- 1534US4849837AMethod of, and apparatus for, recording audio signals using recording signals free of audio frequenciesSTUDER WILLI AG·Filed 1987·Granted Jul 18, 1989·3 cites·9 claims
- 1633US4980921AMagnetic system for dynamic loudspeakerSTUDER WILLI AG·Filed 1986·Granted Dec 25, 1990·10 cites·8 claims
- 1731US4935823AMethod of, and apparatus for, identifying a predetermined location within a data sequence on a record carrier for processing the data sequenceSTUDER WILLI AG·Filed 1988·Granted Jun 19, 1990·5 cites·18 claims
- 1827US4720665ASignal transducerSTUDER WILLI AG·Filed 1986·Granted Jan 19, 1988·0 cites·9 claims
- 1926US4847702AMethod and apparatus for converting a binary signalSTUDER WILLI AG·Filed 1987·Granted Jul 11, 1989·2 cites·12 claims
- 2024US5134041AMagnetic storage medium containing at least two different populations of magnetic particles each population having a separate mean coercive field strengthSTUDER WILLI AG·Filed 1990·Granted Jul 28, 1992·2 cites·8 claims
- 2118US4818923AMethod of, and apparatus for, regulating the rotational speed of an electric motor in a four quadrant mode of operationSTUDER WILLI AG·Filed 1987·Granted Apr 4, 1989·0 cites·15 claims
- 2214US4571529AActual speed value converter for the speed control in a motor drive systemSTUDER WILLI AG·Filed 1983·Granted Feb 18, 1986·2 cites·17 claims
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →