Inventor
LOOKE RICHARD C
US109 patents
Patents
50 patentsUS7321751B2Jan 22, 2008
Method and apparatus for improving dynamic range in a communication system
PARKERVISION INC74 citations99
US7218907B2May 15, 2007
Method and circuit for down-converting a signal
PARKERVISION INC62 citations99
US7218899B2May 15, 2007
Apparatus, system, and method for up-converting electromagnetic signals
PARKERVISION INC75 citations99
US7194246B2Mar 20, 2007
Methods and systems for down-converting a signal using a complementary transistor structure
PARKERVISION INC68 citations99
US7054296B1May 30, 2006
Wireless local area network (WLAN) technology and applications including techniques of universal frequency translation
PARKERVISION INC464 citations99
US7039372B1May 2, 2006
Method and system for frequency up-conversion with modulation embodiments
PARKERVISION INC115 citations99
US7010286B2Mar 7, 2006
Apparatus, system, and method for down-converting and up-converting electromagnetic signals
PARKERVISION INC99 citations99
US6879817B1Apr 12, 2005
DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
PARKERVISION INC108 citations99
US6873836B1Mar 29, 2005
Universal platform module and methods and apparatuses relating thereto enabled by universal frequency translation technology
PARKERVISION INC152 citations99
US6853690B1Feb 8, 2005
Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments
PARKERVISION INC113 citations99
US6836650B2Dec 28, 2004
Methods and systems for down-converting electromagnetic signals, and applications thereof
PARKERVISION INC90 citations99
US6813485B2Nov 2, 2004
Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same
PARKERVISION INC191 citations99
US6798351B1Sep 28, 2004
Automated meter reader applications of universal frequency translation
PARKERVISION INC86 citations99
US6687493B1Feb 3, 2004
Method and circuit for down-converting a signal using a complementary FET structure for improved dynamic range
PARKERVISION INC118 citations99
US6647250B1Nov 11, 2003
Method and system for ensuring reception of a communications signal
PARKERVISION INC122 citations99
US6580902B1Jun 17, 2003
Frequency translation using optimized switch structures
PARKERVISION INC106 citations99
US6542722B1Apr 1, 2003
Method and system for frequency up-conversion with variety of transmitter configurations
PARKERVISION INC133 citations99
US6370371B1Apr 9, 2002
Applications of universal frequency translation
PARKERVISION INC126 citations99
US6266518B1Jul 24, 2001
Method and system for down-converting electromagnetic signals by sampling and integrating over apertures
PARKERVISION INC130 citations99
US6091940AJul 18, 2000
Method and system for frequency up-conversion
PARKERVISION INC152 citations99
US6061551AMay 9, 2000
Method and system for down-converting electromagnetic signals
PARKERVISION INC238 citations99
US6061555AMay 9, 2000
Method and system for ensuring reception of a communications signal
PARKERVISION INC166 citations99
US6049706AApr 11, 2000
Integrated frequency translation and selectivity
PARKERVISION INC142 citations99
US7773688B2Aug 10, 2010
Method, system, and apparatus for balanced frequency up-conversion, including circuitry to directly couple the outputs of multiple transistors
PARKERVISION INC47 citations98
US7693230B2Apr 6, 2010
Apparatus and method of differential IQ frequency up-conversion
PARKERVISION INC53 citations98
US7539474B2May 26, 2009
DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
PARKERVISION INC51 citations98
US7515896B1Apr 7, 2009
Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships
PARKERVISION INC53 citations98
US7496342B2Feb 24, 2009
Down-converting electromagnetic signals, including controlled discharge of capacitors
PARKERVISION INC55 citations98
US7483686B2Jan 27, 2009
Universal platform module and methods and apparatuses relating thereto enabled by universal frequency translation technology
PARKERVISION INC57 citations98
US7386292B2Jun 10, 2008
Apparatus, system, and method for down-converting and up-converting electromagnetic signals
PARKERVISION INC59 citations98
US7379515B2May 27, 2008
Phased array antenna applications of universal frequency translation
PARKERVISION INC78 citations98
US7295826B1Nov 13, 2007
Integrated frequency translation and selectivity with gain control functionality, and applications thereof
PARKERVISION INC71 citations98
US7245886B2Jul 17, 2007
Method and system for frequency up-conversion with modulation embodiments
PARKERVISION INC60 citations98
US7236754B2Jun 26, 2007
Method and system for frequency up-conversion
PARKERVISION INC66 citations98
US7224749B2May 29, 2007
Method and apparatus for reducing re-radiation using techniques of universal frequency translation technology
PARKERVISION INC61 citations98
US7209725B1Apr 24, 2007
Analog zero if FM decoder and embodiments thereof, such as the family radio service
PARKERVISION INC65 citations98
US7190941B2Mar 13, 2007
Method and apparatus for reducing DC offsets in communication systems using universal frequency translation technology
PARKERVISION INC65 citations98
US7110435B1Sep 19, 2006
Spread spectrum applications of universal frequency translation
PARKERVISION INC103 citations98
US7110444B1Sep 19, 2006
Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations
PARKERVISION INC77 citations98
US7082171B1Jul 25, 2006
Phase shifting applications of universal frequency translation
PARKERVISION INC97 citations98
US7076011B2Jul 11, 2006
Integrated frequency translation and selectivity
PARKERVISION INC71 citations98
US7072390B1Jul 4, 2006
Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments
PARKERVISION INC83 citations98
US7065162B1Jun 20, 2006
Method and system for down-converting an electromagnetic signal, and transforms for same
PARKERVISION INC98 citations98
US7050508B2May 23, 2006
Method and system for frequency up-conversion with a variety of transmitter configurations
PARKERVISION INC91 citations98
US7027786B1Apr 11, 2006
Carrier and clock recovery using universal frequency translation
PARKERVISION INC75 citations98
US7016663B2Mar 21, 2006
Applications of universal frequency translation
PARKERVISION INC70 citations98
US6963734B2Nov 8, 2005
Differential frequency down-conversion using techniques of universal frequency translation technology
PARKERVISION INC89 citations98
US6704558B1Mar 9, 2004
Image-reject down-converter and embodiments thereof, such as the family radio service
PARKERVISION INC107 citations98
US6704549B1Mar 9, 2004
Multi-mode, multi-band communication system
PARKERVISION INC125 citations98
US6694128B1Feb 17, 2004
Frequency synthesizer using universal frequency translation technology
PARKERVISION INC107 citations98
Showing the top 50 of 109 patents by PatentIndex Score.