Inventor
GROE JOHN B
US47 patents
⚠️ This page may combine multiple inventors who share the name “GROE JOHN B”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEQUOIA COMM
14 patentsUS6795843B1Sep 21, 2004
Low-distortion differential circuit
SEQUOIA COMM26 citations93
US7382849B1Jun 3, 2008
Charge pump circuit
SEQUOIA COMM33 citations92
US7171170B2Jan 30, 2007
Envelope limiting for polar modulators
SEQUOIA COMM21 citations91
US6798290B2Sep 28, 2004
Translinear variable gain amplifier
SEQUOIA COMM26 citations91
US6724235B2Apr 20, 2004
BiCMOS variable-gain transconductance amplifier
SEQUOIA COMM50 citations91
US6703887B2Mar 9, 2004
Long time-constant integrator
SEQUOIA COMM18 citations84
US7548122B1Jun 16, 2009
PLL with switched parameters
SEQUOIA COMM10 citations80
US7157971B2Jan 2, 2007
Low-distortion differential circuit
SEQUOIA COMM4 citations74
US7587179B1Sep 8, 2009
Direct synthesis transmitter
SEQUOIA COMM5 citations72
US7522005B1Apr 21, 2009
KFM frequency tracking system using an analog correlator
SEQUOIA COMM5 citations62
US7412213B1Aug 12, 2008
Envelope limiting for polar modulators
SEQUOIA COMM3 citations61
US7479815B1Jan 20, 2009
PLL with dual edge sensitivity
SEQUOIA COMM5 citations59
US7595626B1Sep 29, 2009
System for matched and isolated references
SEQUOIA COMM0 citations52
US7132889B2Nov 7, 2006
Translinear variable gain amplifier
SEQUOIA COMM0 citations51
QUINTIC HOLDINGS
8 patentsUS7894545B1Feb 22, 2011
Time alignment of polar transmitter
QUINTIC HOLDINGS9 citations84
US7679468B1Mar 16, 2010
KFM frequency tracking system using a digital correlator
QUINTIC HOLDINGS8 citations83
US7839231B1Nov 23, 2010
Low power I/Q modulator
QUINTIC HOLDINGS8 citations78
US7999608B1Aug 16, 2011
Integrated RF notch filters
QUINTIC HOLDINGS15 citations77
US7764139B1Jul 27, 2010
Polar modulation with extended AM
QUINTIC HOLDINGS3 citations63
US7974374B2Jul 5, 2011
Multi-mode VCO for direct FM systems
QUINTIC HOLDINGS2 citations56
US7868691B2Jan 11, 2011
Commutating amplifier with wide dynamic range
QUINTIC HOLDINGS1 citations48
US7825714B1Nov 2, 2010
Offset nulling for decreasing offset between currents in a differential signaling system
QUINTIC HOLDINGS1 citations46
NOKIA MOBILE PHONES LTD
7 patentsUS6163708ADec 19, 2000
Closed-loop power control method
NOKIA MOBILE PHONES LTD60 citations96
US6178313B1Jan 23, 2001
Control of gain and power consumption in a power amplifier
NOKIA MOBILE PHONES LTD130 citations95
US6205325B1Mar 20, 2001
Active radio frequency mixer circuit with feedback
NOKIA MOBILE PHONES LTD42 citations93
US6175274B1Jan 16, 2001
Switched gain low noise amplifier
NOKIA MOBILE PHONES LTD41 citations93
US6094571AJul 25, 2000
Differential class AB mixer circuit
NOKIA MOBILE PHONES LTD23 citations93
US6060950AMay 9, 2000
Control of a variable gain amplifier with a delta sigma modulator D/A converter
NOKIA MOBILE PHONES LTD29 citations93
US5990740ANov 23, 1999
Differential amplifier with adjustable linearity
NOKIA MOBILE PHONES LTD31 citations93
GROE JOHN B
5 patentsUS7920033B1Apr 5, 2011
Systems and methods for frequency modulation adjustment
GROE JOHN B10 citations82
US8095087B1Jan 10, 2012
Polar modulation with coarse and fine FM signals
GROE JOHN B2 citations62
US8067989B1Nov 29, 2011
Alternate clock apparatus and methods for improving radio performance
GROE JOHN B5 citations60
US8301086B2Oct 30, 2012
Low-power polar transmitter
GROE JOHN B5 citations54
US8193871B1Jun 5, 2012
FM pulse shaping
GROE JOHN B0 citations51
SEQUOIA COMM CORP
3 patentsUS7054605B1May 30, 2006
Variable-gain low noise amplifier to reduce linearity requirements on a radio receiver
SEQUOIA COMM CORP36 citations92
US6980786B1Dec 27, 2005
Adaptive receiver system that adjusts to the level of interfering signals
SEQUOIA COMM CORP42 citations92
US6952133B2Oct 4, 2005
Low-distortion differential circuit
SEQUOIA COMM CORP2 citations63