Inventor
HUMPHREYS SCOTT ROBERT
US36 patents
⚠️ This page may combine multiple inventors who share the name “HUMPHREYS SCOTT ROBERT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RF MICRO DEVICES INC
17 patentsUS6724265B2Apr 20, 2004
Compensation for oscillator tuning gain variations in frequency synthesizers
RF MICRO DEVICES INC95 citations98
US6838951B1Jan 4, 2005
Frequency synthesizer having VCO bias current compensation
RF MICRO DEVICES INC122 citations95
US6731145B1May 4, 2004
Phase-locked loop having loop gain and frequency response calibration
RF MICRO DEVICES INC65 citations95
US7746178B1Jun 29, 2010
Digital offset phase-locked loop
RF MICRO DEVICES INC34 citations92
US7626462B1Dec 1, 2009
Fractional-N based digital AFC system with a translational PLL transmitter
RF MICRO DEVICES INC21 citations92
US7098754B2Aug 29, 2006
Fractional-N offset phase locked loop
RF MICRO DEVICES INC33 citations92
US6448831B1Sep 10, 2002
True single-phase flip-flop
RF MICRO DEVICES INC34 citations92
US6385276B1May 7, 2002
Dual-modulus prescaler
RF MICRO DEVICES INC28 citations92
US6710664B2Mar 23, 2004
Coarse tuning for fractional-N synthesizers
RF MICRO DEVICES INC51 citations91
US6779010B2Aug 17, 2004
Accumulator with programmable full-scale range
RF MICRO DEVICES INC23 citations90
US6693468B2Feb 17, 2004
Fractional-N synthesizer with improved noise performance
RF MICRO DEVICES INC39 citations90
US6891414B1May 10, 2005
Digital calibration for capacitor voltage non-linearity
RF MICRO DEVICES INC26 citations89
US7449960B2Nov 11, 2008
Frequency modulation linearization system for a Fractional-N offset PLL
RF MICRO DEVICES INC12 citations84
US7412215B1Aug 12, 2008
System and method for transitioning from one PLL feedback source to another
RF MICRO DEVICES INC11 citations84
US7932784B1Apr 26, 2011
Frequency and phase locked loop synthesizer
RF MICRO DEVICES INC17 citations79
US7474878B1Jan 6, 2009
Closed loop polar modulation system with open loop option at low power levels
RF MICRO DEVICES INC12 citations79
US7288999B1Oct 30, 2007
Pre-distortion system for a synthesizer having modulation applied in the reference path
RF MICRO DEVICES INC6 citations73
MOTOROLA INC
8 patentsUS6002273ADec 14, 1999
Linear low noise phase-frequency detector
MOTOROLA INC57 citations96
US6100730AAug 8, 2000
Prescaler system circuits
MOTOROLA INC22 citations90
US6211583B1Apr 3, 2001
High speed current switch
MOTOROLA INC17 citations84
US5793825AAug 11, 1998
Method and apparatus for extending an operating frequency range of an instantaneous phase-frequency detector
MOTOROLA INC9 citations74
US6252434B1Jun 26, 2001
Voltage comparator
MOTOROLA INC9 citations73
US6064869AMay 16, 2000
Suppression of noise between phase lock loops in a selective call receiver and method therefor
MOTOROLA INC13 citations71
US5805095ASep 8, 1998
Two's complement digital to analog converter
MOTOROLA INC8 citations71
US5939911AAug 17, 1999
Frequency prescaler method and apparatus responsive to low input drive levels
MOTOROLA INC6 citations61
JOHNSON & JOHNSON VISION CARE
7 patentsUS9909922B2Mar 6, 2018
Anti-aliasing photodetector system
JOHNSON & JOHNSON VISION CARE26 citations90
US9351827B2May 31, 2016
Lens driver for variable-optic electronic ophthalmic lens
JOHNSON & JOHNSON VISION CARE15 citations84
US9072465B2Jul 7, 2015
Blink detection system for electronic ophthalmic lens
JOHNSON & JOHNSON VISION CARE12 citations84
US9980810B2May 29, 2018
System controller for variable-optic electronic ophthalmic lens
JOHNSON & JOHNSON VISION CARE4 citations73
US9535266B2Jan 3, 2017
Wake circuit for powered ophthalmic lens
JOHNSON & JOHNSON VISION CARE2 citations67
US10502979B2Dec 10, 2019
Impedance sensing circuits for ophthalmic devices
JOHNSON & JOHNSON VISION CARE1 citations54
US9498124B2Nov 22, 2016
Blink detection system for electronic ophthalmic lens
JOHNSON & JOHNSON VISION CARE0 citations52