Inventor · disambiguated record
Peter Graham Craven
Also filed as: CRAVEN PETER · CRAVEN PETER G · CRAVEN PETER GRAHAM · GERZON PETER HERBERT
40 granted patents·2 pending applications·2,225 citations·filing 1975–2024
98Inventor score
Top patents by PatentIndex Score
42 records- 0199US7649410B2Systems and methods for improving performance in a digital amplifier by adding an ultrasonic signal to an input audio signalD2AUDIO CORP·Filed 2007·Granted Jan 19, 2010·112 cites·33 claims
- 0299US5548286AAnalogue and digital convertors using pulse edge modulators with non-linearity error correctionB & W LOUDSPEAKERS·Filed 1992·Granted Aug 20, 1996·253 cites·14 claims
- 0398US6760451B1Compensating filtersFiled 1998·Granted Jul 6, 2004·361 cites·14 claims
- 0498US6232899B1Analogue and digital convertorsCIRRUS LOGIC INC·Filed 1999·Granted May 15, 2001·169 cites·25 claims
- 0597US7286009B2Digital PWM amplifier with simulation-based feedbackD2AUDIO CORP·Filed 2005·Granted Oct 23, 2007·62 cites·20 claims
- 0697US6611212B1Matrix improvements to lossless encoding and decodingDOLBY LAB LICENSING CORP·Filed 2000·Granted Aug 26, 2003·208 cites·16 claims
- 0797US4042779ACoincident microphone simulation covering three dimensional space and yielding various directional outputsNAT RES DEV·Filed 1975·Granted Aug 16, 1977·98 cites·8 claims
- 0895US6774820B2Matrix improvements to lossless encoding and decodingDOLBY LAB LICENSING CORP·Filed 2003·Granted Aug 10, 2004·47 cites·99 claims
- 0995US6664913B1Lossless coding method for waveform dataDOLBY LAB LICENSING CORP·Filed 1996·Granted Dec 16, 2003·110 cites·17 claims
- 1094US6784812B2Lossless coding method for waveform dataDOLBY LAB LICENSING CORP·Filed 2003·Granted Aug 31, 2004·47 cites·33 claims
- 1194US5815580ACompensating filtersFiled 1997·Granted Sep 29, 1998·136 cites·22 claims
- 1294US5511129ACompensating filtersFiled 1991·Granted Apr 23, 1996·118 cites·11 claims
- 1393US7193538B2Matrix improvements to lossless encoding and decodingDOLBY LAB LICENSING CORP·Filed 2004·Granted Mar 20, 2007·34 cites·15 claims
- 1490US5708433ADigital converterFiled 1994·Granted Jan 13, 1998·73 cites·26 claims
- 1589US8406436B2Microphone arrayCRAVEN PETER G·Filed 2007·Granted Mar 26, 2013·53 cites·48 claims
- 1689US7728658B2Low-noise, low-distortion digital PWM amplifierD2AUDIO CORP·Filed 2007·Granted Jun 1, 2010·19 cites·22 claims
- 1789US7576606B2Digital PWM amplifier having a low delay correctorD2AUDIO CORP·Filed 2007·Granted Aug 18, 2009·16 cites·7 claims
- 1887US6023233AData rate control for variable rate compression systemsFiled 1998·Granted Feb 8, 2000·114 cites·54 claims
- 1986US5784017AAnalogue and digital convertors using pulse edge modulators with non-linearity error correctionB & W LOUDSPEAKERS·Filed 1996·Granted Jul 21, 1998·44 cites·18 claims
- 2085US6891482B2Lossless coding method for waveform dataDOLBY LAB LICENSING CORP·Filed 2004·Granted May 10, 2005·25 cites·23 claims
- 2182US10115410B2Digital encapsulation of audio signalsCRAVEN PETER GRAHAM·Filed 2014·Granted Oct 30, 2018·6 cites·32 claims
- 2281US10763828B2Non linear filter with group delay at pre-response frequency for high res audioCRAVEN PETER GRAHAM·Filed 2015·Granted Sep 1, 2020·3 cites·22 claims
- 2380US2025061907A1Digital encapsulation of audio signalsMQA LTD·Filed 2024·Application pending·0 cites
- 2479US11996816B2Non linear filter with group delay at pre-response frequency for high res radioCRAVEN PETER GRAHAM·Filed 2020·Granted May 28, 2024·1 cites·30 claims
- 2578US11388510B2Microphone arrays providing improved horizontal directivityCRAVEN PETER GRAHAM·Filed 2017·Granted Jul 12, 2022·3 cites·22 claims
- 2678US7812666B2Low delay correctorD2AUDIO CORP·Filed 2009·Granted Oct 12, 2010·8 cites·21 claims
- 2778US5627899ACompensating filtersFiled 1995·Granted May 6, 1997·54 cites·12 claims
- 2877US12183356B2Digital encapsulation of audio signalsMQA LTD·Filed 2023·Granted Dec 31, 2024·0 cites·6 claims
- 2977US6031481AAnalogue and digital convertersB & W LOUDSPEAKERS·Filed 1998·Granted Feb 29, 2000·28 cites·10 claims
- 3074US7756592B2Enhanced feedback for plant controlCRAVEN PETER·Filed 2005·Granted Jul 13, 2010·9 cites·45 claims
- 3172US7518444B2PWM feedback/feed-forward protectionD2AUDIO CORP·Filed 2007·Granted Apr 14, 2009·7 cites·22 claims
- 3268US11710493B2Digital encapsulation of audio signalsMQA LTD·Filed 2020·Granted Jul 25, 2023·0 cites·8 claims
- 3365US9940940B2Transparent lossless audio watermarkingCRAVEN PETER GRAHAM·Filed 2015·Granted Apr 10, 2018·2 cites·26 claims
- 3457US10867614B2Digital encapsulation of audio signalsCRAVEN PETER GRAHAM·Filed 2018·Granted Dec 15, 2020·0 cites·11 claims
- 3555US9548055B2Doubly compatible lossless audio bandwidth extensionMERIDIAN AUDIO LTD·Filed 2013·Granted Jan 17, 2017·1 cites·25 claims
- 3649US11095304B2Discrete ditherMQA LTD·Filed 2019·Granted Aug 17, 2021·0 cites·6 claims
- 3747US9870777B2Lossless embedded additional dataCRAVEN PETER GRAHAM·Filed 2012·Granted Jan 16, 2018·0 cites·25 claims
- 3843US10896683B2Lossless bandsplitting and bandjoining using allpass filtersCRAVEN PETER GRAHAM·Filed 2016·Granted Jan 19, 2021·0 cites·31 claims
- 3942US9106241B2Prediction of signalsCRAVEN PETER GRAHAM·Filed 2010·Granted Aug 11, 2015·0 cites·31 claims
- 4040US8533571B2Lossy coding of signalsCRAVEN PETER GRAHAM·Filed 2009·Granted Sep 10, 2013·0 cites·31 claims
- 4140US2016005411A1Versatile music distributionMERIDIAN AUDIO LTD·Filed 2014·Application pending·0 cites
- 4234US4118790AData processing equipmentPOST OFFICE·Filed 1977·Granted Oct 3, 1978·4 cites·9 claims
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