Inventor · disambiguated record
H. Spence Jackson
Also filed as: JACKSON H SPENCE
24 granted patents·1 pending application·884 citations·filing 1991–1998
97Inventor score
Top patents by PatentIndex Score
25 records- 0193US5442353ABandpass sigma-delta analog-to-digital converter (ADC), method therefor, and receiver using sameMOTOROLA INC·Filed 1993·Granted Aug 15, 1995·102 cites·28 claims
- 0291US5245646ATuning circuit for use with an integrated continuous time analog filterMOTOROLA INC·Filed 1992·Granted Sep 14, 1993·68 cites·11 claims
- 0390US5243347AMonotonic current/resistor digital-to-analog converter and method of operationMOTOROLA INC·Filed 1992·Granted Sep 7, 1993·76 cites·17 claims
- 0489US5243348APartitioned digital encoder and method for encoding bit groups in parallelMOTOROLA INC·Filed 1992·Granted Sep 7, 1993·76 cites·11 claims
- 0588US5221926ACircuit and method for cancelling nonlinearity error associated with component value mismatches in a data converterMOTOROLA INC·Filed 1992·Granted Jun 22, 1993·68 cites·14 claims
- 0684US6212230B1Method and apparatus for pulse position modulationSIGMATEL INC·Filed 1998·Granted Apr 3, 2001·80 cites·18 claims
- 0784US5714909ATransimpedance amplifier and method for constructing sameSIGMATEL INC·Filed 1996·Granted Feb 3, 1998·54 cites·18 claims
- 0883US5329282AMulti-bit sigma-delta analog-to-digital converter with reduced sensitivity to DAC nonlinearitiesMOTOROLA INC·Filed 1992·Granted Jul 12, 1994·53 cites·12 claims
- 0982US5977822AMethod and apparatus of pulse position demodulationSIGMATEL INC·Filed 1998·Granted Nov 2, 1999·42 cites·20 claims
- 1079US5187445ATuning circuit for continuous-time filters and method thereforMOTOROLA INC·Filed 1991·Granted Feb 16, 1993·53 cites·13 claims
- 1172US5283580ACurrent/resistor digital-to-analog converter having enhanced integral linearity and method of operationMOTOROLA INC·Filed 1992·Granted Feb 1, 1994·32 cites·12 claims
- 1269US5194831AFully-differential relaxation-type voltage controlled oscillator and method thereforMOTOROLA INC·Filed 1992·Granted Mar 16, 1993·22 cites·11 claims
- 1367US5442352ALinear attenuator for current-mode digital-to-analog converter (DAC) or the likeMOTOROLA INC·Filed 1994·Granted Aug 15, 1995·25 cites·20 claims
- 1466US5412335AArea-efficient current-input filter, virtual ground circuit used in same, and method thereforMOTOROLA INC·Filed 1994·Granted May 2, 1995·19 cites·19 claims
- 1559US6151149AMethod and apparatus for pulse pattern modulationSIGMATEL INC·Filed 1998·Granted Nov 21, 2000·40 cites·16 claims
- 1649US5933040AMethod and apparatus for a data detection circuit operating from a low voltage power sourceSIGMATEL INC·Filed 1997·Granted Aug 3, 1999·10 cites·14 claims
- 1748US6144473AMethod and apparatus for transceiving infrared signalsSIGMATEL INC·Filed 1997·Granted Nov 7, 2000·15 cites·13 claims
- 1842US5892800AData detection circuit having a pre-amplifier circuitSIGMATEL INC·Filed 1997·Granted Apr 6, 1999·10 cites·9 claims
- 1942US5815104AMethod and apparatus for digital to analog conversionSIGMATEL INC·Filed 1997·Granted Sep 29, 1998·10 cites·14 claims
- 2039US6163580AMethod and apparatus for data detection with an enhanced adaptive thresholdSIGMATEL INC·Filed 1997·Granted Dec 19, 2000·11 cites·16 claims
- 2137US6175601B1Infra-red data processing circuitSIGMATEL INC·Filed 1998·Granted Jan 16, 2001·6 cites·3 claims
- 2234US6055283AData detection circuitSIGMATEL INC·Filed 1998·Granted Apr 25, 2000·4 cites·3 claims
- 2333US6608902B1Stereo signal separation circuit and application thereofSIGMATEL INC·Filed 1998·Granted Aug 19, 2003·5 cites·18 claims
- 2433US6128354AData detection pre-amplifier circuitSIGMATEL INC·Filed 1998·Granted Oct 3, 2000·3 cites·5 claims
- 2529US2001055353A1Method and apparatus for amplitude and pulse modulationFiled 1998·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →