Inventor
JACKSON H SPENCE
US25 patents
⚠️ This page may combine multiple inventors who share the name “JACKSON H SPENCE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SIGMATEL INC
13 patentsUS5714909AFeb 3, 1998
Transimpedance amplifier and method for constructing same
SIGMATEL INC54 citations96
US6212230B1Apr 3, 2001
Method and apparatus for pulse position modulation
SIGMATEL INC80 citations95
US6151149ANov 21, 2000
Method and apparatus for pulse pattern modulation
SIGMATEL INC40 citations92
US5977822ANov 2, 1999
Method and apparatus of pulse position demodulation
SIGMATEL INC42 citations92
US6175601B1Jan 16, 2001
Infra-red data processing circuit
SIGMATEL INC6 citations74
US6163580ADec 19, 2000
Method and apparatus for data detection with an enhanced adaptive threshold
SIGMATEL INC11 citations74
US6144473ANov 7, 2000
Method and apparatus for transceiving infrared signals
SIGMATEL INC15 citations74
US6055283AApr 25, 2000
Data detection circuit
SIGMATEL INC4 citations74
US5933040AAug 3, 1999
Method and apparatus for a data detection circuit operating from a low voltage power source
SIGMATEL INC10 citations74
US5892800AApr 6, 1999
Data detection circuit having a pre-amplifier circuit
SIGMATEL INC10 citations74
US5815104ASep 29, 1998
Method and apparatus for digital to analog conversion
SIGMATEL INC10 citations73
US6128354AOct 3, 2000
Data detection pre-amplifier circuit
SIGMATEL INC3 citations63
US6608902B1Aug 19, 2003
Stereo signal separation circuit and application thereof
SIGMATEL INC5 citations60
MOTOROLA INC
12 patentsUS5442353AAug 15, 1995
Bandpass sigma-delta analog-to-digital converter (ADC), method therefor, and receiver using same
MOTOROLA INC102 citations96
US5245646ASep 14, 1993
Tuning circuit for use with an integrated continuous time analog filter
MOTOROLA INC68 citations96
US5243348ASep 7, 1993
Partitioned digital encoder and method for encoding bit groups in parallel
MOTOROLA INC76 citations96
US5243347ASep 7, 1993
Monotonic current/resistor digital-to-analog converter and method of operation
MOTOROLA INC76 citations96
US5221926AJun 22, 1993
Circuit and method for cancelling nonlinearity error associated with component value mismatches in a data converter
MOTOROLA INC68 citations96
US5283580AFeb 1, 1994
Current/resistor digital-to-analog converter having enhanced integral linearity and method of operation
MOTOROLA INC32 citations93
US5442352AAug 15, 1995
Linear attenuator for current-mode digital-to-analog converter (DAC) or the like
MOTOROLA INC25 citations92
US5329282AJul 12, 1994
Multi-bit sigma-delta analog-to-digital converter with reduced sensitivity to DAC nonlinearities
MOTOROLA INC53 citations92
US5194831AMar 16, 1993
Fully-differential relaxation-type voltage controlled oscillator and method therefor
MOTOROLA INC22 citations92
US5187445AFeb 16, 1993
Tuning circuit for continuous-time filters and method therefor
MOTOROLA INC53 citations92
US5028881AJul 2, 1991
Highly linear operational transconductance amplifier with low transconductance
MOTOROLA INC24 citations92
US5412335AMay 2, 1995
Area-efficient current-input filter, virtual ground circuit used in same, and method therefor
MOTOROLA INC19 citations74