US Patent No: 6,879,817

Number of patents in Portfolio can not be more than 2000

DC offset, re-radiation, and I/Q solutions using universal frequency translation technology

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ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by aliasing the EM signal, and applications thereof are described herein. Reducing or eliminating DC offset voltages and re-radiation generated when down-converting an electromagnetic (EM) signal is also described herein. Down-converting a signal and improving receiver dynamic range is also described herein.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
PARKERVISION, INC.JACKSONVILLE, FL165

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bultman, Michael J Jacksonville, FL 142 4829
Cook, Robert W Switzerland, FL 140 4837
Jensen, Jonathan S Salt Lake City, UT 12 268
Johnson, Martin R Draper, UT 25 342
Looke, Richard C Jacksonville, FL 136 4836
Moses, Jr Charley D Jacksonville, FL 55 4065
Rawlins, Gregory S Heathrow, FL 188 3921
Rawlins, Michael W Lake Mary, FL 164 3809
Short, Robert T Salt Lake City, UT 37 1866
Sorrells, David F Middleburg, FL 263 6833
Young, Jamison L Woods Cross, UT 12 268

Cited Art

Patent Info (Count) # Cites Year
 
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PARKERVISION, INC. (16)
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6,687,493 Method and circuit for down-converting a signal using a complementary FET structure for improved dynamic range 91 1999
6,266,518 Method and system for down-converting electromagnetic signals by sampling and integrating over apertures 108 1999
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5,661,424 Frequency hopping synthesizer using dual gate amplifiers 112 1993
 
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4,577,157 Zero IF receiver AM/FM/PM demodulator using sampling techniques 113 1983
 
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5,640,424 Direct downconverter circuit for demodulator in digital data transmission system 124 1995
 
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4,761,798 Baseband phase modulator apparatus employing digital techniques 96 1987
 
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5,640,415 Bit error performance of a frequency hopping, radio communication system 112 1994
 
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5,563,550 Recovery of data from amplitude modulated signals with self-coherent demodulation 100 1995
 
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6,026,286 RF amplifier, RF mixer and RF receiver 202 1996
 
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6,054,889 Mixer with improved linear range 119 1997
 
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5,911,116 Transmitting-receiving switch-over device complete with semiconductors 116 1997
 
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5,903,553 Enhanced signal collision detection method in wireless communication system 114 1996
 
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6,098,046 Frequency converter system 157 1998
 
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6,091,939 Mobile radio transmitter with normal and talk-around frequency bands 97 1997
 
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4,894,766 Power supply frequency converter 102 1988
 
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5,943,370 Direct conversion receiver 107 1997
 
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4,885,587 Multibit decorrelated spur digital radio frequency memory 109 1988
 
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4,920,510 Sample data band-pass filter device 100 1987
 
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5,416,449 Modulator with harmonic mixers 93 1994
 
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OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (81)
4,308,614 Noise-reduction sampling system 102 1978
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4,253,066 Synchronous detection with sampling 104 1980
4,456,990 Periodic wave elimination by negative feedback 101 1982
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5,915,278 System for the measurement of rotation and translation for modal analysis 100 1995
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Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
PARKERVISION, INC. (62)
7,515,896 Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships 31 2000
7,065,162 Method and system for down-converting an electromagnetic signal, and transforms for same 71 2000
8,295,406 Universal platform module for a plurality of communication protocols 3 2000
7,292,835 Wireless and wired cable modem applications of universal frequency translation technology 48 2001
7,379,515 Phased array antenna applications of universal frequency translation 45 2001
7,085,335 Method and apparatus for reducing DC offsets in a communication system 63 2001
7,010,559 Method and apparatus for a parallel correlator and applications thereof 71 2001
7,236,754 Method and system for frequency up-conversion 53 2002
7,460,584 Networking methods and systems 31 2002
7,379,883 Networking methods and systems 41 2002
7,321,751 Method and apparatus for improving dynamic range in a communication system 44 2002
7,272,164 Reducing DC offsets using spectral spreading 48 2002
7,224,749 Method and apparatus for reducing re-radiation using techniques of universal frequency translation technology 50 2002
7,076,011 Integrated frequency translation and selectivity 59 2003
7,389,100 Method and circuit for down-converting a signal 40 2003
7,321,640 Active polyphase inverter filter for quadrature signal generation 42 2003
7,454,453 Methods, systems, and computer program products for parallel correlation and applications thereof 32 2003
7,308,242 Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same 44 2004
7,822,401 Apparatus and method for down-converting electromagnetic signals by controlled charging and discharging of a capacitor 19 2004
7,218,899 Apparatus, system, and method for up-converting electromagnetic signals 53 2004
7,107,028 Apparatus, system, and method for up converting electromagnetic signals 58 2004
7,496,342 Down-converting electromagnetic signals, including controlled discharge of capacitors 32 2004
7,386,292 Apparatus, system, and method for down-converting and up-converting electromagnetic signals 42 2004
7,483,686 Universal platform module and methods and apparatuses relating thereto enabled by universal frequency translation technology 30 2004
7,773,688 Method, system, and apparatus for balanced frequency up-conversion, including circuitry to directly couple the outputs of multiple transistors 21 2004
7,194,246 Methods and systems for down-converting a signal using a complementary transistor structure 51 2004
7,653,145 Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations 24 2005
7,245,886 Method and system for frequency up-conversion with modulation embodiments 49 2005
7,539,474 DC offset, re-radiation, and I/Q solutions using universal frequency translation technology 30 2005
7,433,910 Method and apparatus for the parallel correlator and applications thereof 35 2005
7,233,969 Method and apparatus for a parallel correlator and applications thereof 85 2005
7,218,907 Method and circuit for down-converting a signal 51 2005
7,697,916 Applications of universal frequency translation 22 2005
7,376,410 Methods and systems for down-converting a signal using a complementary transistor structure 40 2006
7,653,158 Gain control in a communication channel 25 2006
7,693,230 Apparatus and method of differential IQ frequency up-conversion 22 2006
7,724,845 Method and system for down-converting and electromagnetic signal, and transforms for same 23 2006
7,599,421 Spread spectrum applications of universal frequency translation 28 2006
7,529,522 Apparatus and method for communicating an input signal in polar representation 30 2006
8,160,196 Networking methods and systems 7 2006
7,546,096 Frequency up-conversion using a harmonic generation and extraction module 32 2007
7,936,022 Method and circuit for down-converting a signal 14 2008
7,554,508 Phased array antenna applications on universal frequency translation 32 2008
7,991,815 Methods, systems, and computer program products for parallel correlation and applications thereof 13 2008
7,937,059 Converting an electromagnetic signal via sub-sampling 14 2008
7,693,502 Method and system for down-converting an electromagnetic signal, transforms for same, and aperture relationships 21 2008
7,865,177 Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships 16 2009
7,826,817 Applications of universal frequency translation 20 2009
7,894,789 Down-conversion of an electromagnetic signal with feedback control 15 2009
8,019,291 Method and system for frequency down-conversion and frequency up-conversion 13 2009
8,233,855 Up-conversion based on gated information signal 4 2009
7,929,638 Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments 15 2010
8,036,304 Apparatus and method of differential IQ frequency up-conversion 13 2010
8,223,898 Method and system for down-converting an electromagnetic signal, and transforms for same 4 2010
8,077,797 Method, system, and apparatus for balanced frequency up-conversion of a baseband signal 13 2010
8,295,800 Apparatus and method for down-converting electromagnetic signals by controlled charging and discharging of a capacitor 3 2010
8,160,534 Applications of universal frequency translation 7 2010
8,340,618 Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships 4 2010
8,224,281 Down-conversion of an electromagnetic signal with feedback control 4 2010
8,190,116 Methods and systems for down-converting a signal using a complementary transistor structure 5 2011
8,229,023 Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments 4 2011
8,190,108 Method and system for frequency up-conversion 5 2011
 
BROADCOM CORPORATION (1)
7,979,044 Method and system for utilizing undersampling and/or a digital delay line to remove out-of-band blocker signals 0 2007
 
FREESCALE SEMICONDUCTOR, INC. (1)
8,278,902 DC to DC switching power converter controller using spread spectrum PWM 0 2009
 
PANASONIC CORPORATION (1)
7,826,811 Phase modulation apparatus and wireless communication apparatus 0 2006
 
SIEMENS AKTIENGESELLSCHAFT (1)
6,943,643 Controllable two-phase network with amplitude compensation 0 2003
 
SONY ERICSSON MOBILE COMMUNICATIONS AB (1)
7,498,871 Spectrum spreaders including tunable filters and related devices and methods 3 2006
 
STMICROELECTRONICS S.A. (1)
7,671,780 Method and device for processing an incident signal, in particular for frequency transposition 0 2008
 
TEXAS INSTRUMENTS INCORPORATED (1)
7,356,069 Spread spectrum demodulation using a subsampling communication receiver architecture 1 2002
 
UNIVERSITAT BERN (1)
7,620,378 Method and system for frequency up-conversion with modulation embodiments 25 2007
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (2)
8,407,061 Networking methods and systems 0 2008
8,446,994 Gain control in a communication channel 0 2009

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