Inventor · disambiguated record
David P. Rossum
Also filed as: ROSSUM DAVID · ROSSUM DAVID P · ROSSUM DAVID PHILIP
43 granted patents·1 pending application·1,206 citations·filing 1974–2019
98Inventor score
Files withCREATIVE TECH LTD18E MU SYSTEMS INC10KNOWLES ELECTRONICS LLC5ROSSUM ELECTRO MUSIC LLC3OBERHEIM ELECTRONICS INC2
Top patents by PatentIndex Score
44 records- 0196US3969682ACircuit for dynamic control of phase shiftOBERHEIM ELECTRONICS INC·Filed 1974·Granted Jul 13, 1976·92 cites·7 claims
- 0295US9478234B1Microphone apparatus and method with catch-up bufferKNOWLES ELECTRONICS LLC·Filed 2015·Granted Oct 25, 2016·24 cites·14 claims
- 0393US8965942B1Systems and methods for sample rate trackingROSSUM DAVID P·Filed 2014·Granted Feb 24, 2015·19 cites·20 claims
- 0493US5342990ADigital sampling instrument employing cache-memoryE MU SYSTEMS INC·Filed 1992·Granted Aug 30, 1994·58 cites·11 claims
- 0592US5943427AMethod and apparatus for three dimensional audio spatializationCREATIVE TECH LTD·Filed 1995·Granted Aug 24, 1999·170 cites·29 claims
- 0692US5111727ADigital sampling instrument for digital audio dataE MU SYSTEMS INC·Filed 1990·Granted May 12, 1992·73 cites·10 claims
- 0790US5763800AMethod and apparatus for formatting digital audio dataCREATIVE LABS INC·Filed 1995·Granted Jun 9, 1998·135 cites·36 claims
- 0890US3986423APolyphonic music synthesizerOBERHEIM ELECTRONICS INC·Filed 1974·Granted Oct 19, 1976·44 cites·19 claims
- 0989US8618961B1Sample rate conversion using infinite impulse response filtersMASSIE DANA·Filed 2013·Granted Dec 31, 2013·12 cites·20 claims
- 1086US6324235B1Asynchronous sample rate trackerCREATIVE TECH LTD·Filed 1998·Granted Nov 27, 2001·54 cites·11 claims
- 1181US5248845ADigital sampling instrumentE MU SYSTEMS INC·Filed 1992·Granted Sep 28, 1993·44 cites·1 claims
- 1281US5170369ADynamic digital IIR audio filter and method which provides dynamic digital filtering for audio signalsE MU SYSTEMS INC·Filed 1990·Granted Dec 8, 1992·35 cites·7 claims
- 1380US10514883B2Multi-channel morphing digital audio filterROSSUM ELECTRO MUSIC LLC·Filed 2018·Granted Dec 24, 2019·3 cites·20 claims
- 1480US9236874B1Reducing data transition rates between analog and digital chipsAUDIENCE INC·Filed 2014·Granted Jan 12, 2016·6 cites·21 claims
- 1580US5698807ADigital sampling instrumentCREATIVE TECH LTD·Filed 1996·Granted Dec 16, 1997·53 cites·20 claims
- 1679US9711144B2Microphone apparatus and method with catch-up bufferKNOWLES ELECTRONICS LLC·Filed 2016·Granted Jul 18, 2017·3 cites·20 claims
- 1776US7280878B1Sample rate converter having distributed filteringCREATIVE TECH LTD·Filed 1999·Granted Oct 9, 2007·30 cites·39 claims
- 1876US6858790B2Digital sampling instrument employing cache memoryCREATIVE TECH LTD·Filed 2002·Granted Feb 22, 2005·13 cites·14 claims
- 1975US10045140B2Utilizing digital microphones for low power keyword detection and noise suppressionKNOWLES ELECTRONICS LLC·Filed 2016·Granted Aug 7, 2018·2 cites·24 claims
- 2072US5698803ADigital sampling instrument employing cache memoryE MU SYSTEMS INC·Filed 1996·Granted Dec 16, 1997·22 cites·15 claims
- 2172US4404529ALowpass filter with electronic control of cutoff and resonanceROSSUM DAVID P·Filed 1980·Granted Sep 13, 1983·20 cites·15 claims
- 2271US6365816B1Digital sampling instrument employing cache memoryCREATIVE TECH LTD·Filed 2000·Granted Apr 2, 2002·10 cites·8 claims
- 2370US11202147B2Audio filter with through-zero linearly variable resonant frequencyROSSUM ELECTRO MUSIC LLC·Filed 2019·Granted Dec 14, 2021·1 cites·21 claims
- 2470US5925841ADigital sampling instrument employing cache memoryCREATIVE TECH LTD·Filed 1997·Granted Jul 20, 1999·20 cites·31 claims
- 2569US4506579AElectronic musical instrumentE MU SYSTEMS INC·Filed 1983·Granted Mar 26, 1985·12 cites·5 claims
- 2668US11087732B2Oscillatory timbres for musical synthesis through synchronous ring modulationROSSUM ELECTRO MUSIC LLC·Filed 2019·Granted Aug 10, 2021·1 cites·24 claims
- 2767US6016522ASystem for switching between buffers when receiving bursty audio by computing loop jump indicator plus loop start address for read operations in selected bufferCREATIVE TECH LTD·Filed 1997·Granted Jan 18, 2000·28 cites·14 claims
- 2866US4987600ADigital sampling instrumentE MU SYSTEMS INC·Filed 1989·Granted Jan 22, 1991·18 cites·1 claims
- 2965US5864876ADMA device with local page tableCREATIVE TECH LTD·Filed 1997·Granted Jan 26, 1999·58 cites·18 claims
- 3063US7248934B1Method of transmitting a one-dimensional signal using a two-dimensional analog mediumCREATIVE TECH LTD·Filed 2000·Granted Jul 24, 2007·11 cites·20 claims
- 3162US6137043ADigital sampling instrument employing cache memoryCREATIVE TECH LTD·Filed 1998·Granted Oct 24, 2000·13 cites·12 claims
- 3261US5928342AAudio effects processor integrated on a single chip with a multiport memory onto which multiple asynchronous digital sound samples can be concurrently loadedCREATIVE TECH LTD·Filed 1997·Granted Jul 27, 1999·39 cites·8 claims
- 3359US5303309ADigital sampling instrumentE MU SYSTEMS INC·Filed 1992·Granted Apr 12, 1994·14 cites·5 claims
- 3457US10469967B2Utilizing digital microphones for low power keyword detection and noise suppressionKNOWLES ELECTRONICS LLC·Filed 2018·Granted Nov 5, 2019·0 cites·20 claims
- 3555US6622207B1Interpolation looping of prioritized audio samples in cache connected to system busCREATIVE TECH LTD·Filed 2000·Granted Sep 16, 2003·5 cites·9 claims
- 3655US5144676ADigital sampling instrumentE MU SYSTEMS INC·Filed 1991·Granted Sep 1, 1992·13 cites·7 claims
- 3750US5900570AMethod and apparatus for synthesizing musical sounds by frequency modulation using a filterCREATIVE TECH LTD·Filed 1995·Granted May 4, 1999·13 cites·47 claims
- 3848US6092126AAsynchronous sample rate tracker with multiple tracking modesCREATIVE TECH LTD·Filed 1997·Granted Jul 18, 2000·20 cites·36 claims
- 3947US9337805B2Efficient digital microphone decimation filter architectureCREATIVE TECH LTD·Filed 2012·Granted May 10, 2016·0 cites·19 claims
- 4044US2014244273A1Voice-controlled communication connectionsLAROCHE JEAN·Filed 2014·Application pending·0 cites
- 4142US6138207AInterpolation looping of audio samples in cache connected to system bus with prioritization and modification of bus transfers in accordance with loop ends and minimum block sizesCREATIVE TECH LTD·Filed 1997·Granted Oct 24, 2000·7 cites·16 claims
- 4241US6091269AMethod and apparatus for creating different waveforms when synthesizing musical soundsCREATIVE TECH LTD·Filed 1996·Granted Jul 18, 2000·8 cites·16 claims
- 4339US11029914B2Multi-core audio processor with phase coherencyKNOWLES ELECTRONICS LLC·Filed 2018·Granted Jun 8, 2021·0 cites·20 claims
- 4435US5072645AOutput stage for a multitimbral electronic musical instrument providing automatic detection of the use of submix outputsE MU SYSTEMS INC·Filed 1990·Granted Dec 17, 1991·3 cites·6 claims
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