US Patent No: 7,194,246

Number of patents in Portfolio can not be more than 2000

Methods and systems for down-converting a signal using a complementary transistor structure

ALSO PUBLISHED AS: 20050202797

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by aliasing the EM signal are described herein. Briefly stated, such methods, systems, and apparatuses operate by receiving an EM signal and an aliasing signal having an aliasing rate. The EM signal is aliased according to the aliasing signal to down-convert the EM signal. The term aliasing, as used herein, refers to both down-converting an EM signal by under-sampling the EM signal at an aliasing rate, and down-converting an EM signal by transferring energy from the EM signal at the aliasing rate. In an embodiment, the EM signal is down-converted to an intermediate frequency (IF) signal. In another embodiment, the EM signal is down-converted to a demodulated baseband information signal. In another embodiment, the EM signal is a frequency modulated (FM) signal, which is down-converted to a non-FM signal, such as a phase modulated (PM) signal or an amplitude modulated (AM) signal.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
PARKERVISION, INC.JACKSONVILLE, FL185

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bultman, Michael J Jacksonville, FL 178 5178
Cook, Robert W Switzerland, FL 173 5143
Looke, Richard C Jacksonville, FL 169 5138
Moses, Charley D Jacksonville, FL 8 111
Sorrells, David F Middleburg, FL 329 7904

Cited Art Landscape

Patent Info (Count) # Cites Year
 
AKAMAI TECHNOLOGIES, INC. (39)
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2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 26 2009
 
PARKERVISION, INC. (38)
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6,061,551 Method and system for down-converting electromagnetic signals 136 1998
6,061,555 Method and system for ensuring reception of a communications signal 116 1998
6,091,940 Method and system for frequency up-conversion 116 1998
6,370,371 Applications of universal frequency translation 108 1999
6,560,301 Integrated frequency translation and selectivity with a variety of filter embodiments 89 1999
6,580,902 Frequency translation using optimized switch structures 93 1999
6,687,493 Method and circuit for down-converting a signal using a complementary FET structure for improved dynamic range 93 1999
6,266,518 Method and system for down-converting electromagnetic signals by sampling and integrating over apertures 111 1999
6,647,250 Method and system for ensuring reception of a communications signal 98 1999
6,353,735 MDG method for output signal generation 100 1999
6,704,549 Multi-mode, multi-band communication system 98 2000
7,006,805 Aliasing communication system with multi-mode and multi-band functionality and embodiments thereof, such as the family radio service 70 2000
6,634,555 Bar code scanner using universal frequency translation technology for up-conversion and down-conversion 86 2000
6,853,690 Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments 80 2000
6,879,817 DC offset, re-radiation, and I/Q solutions using universal frequency translation technology 74 2000
7,110,435 Spread spectrum applications of universal frequency translation 76 2000
6,798,351 Automated meter reader applications of universal frequency translation 81 2000
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7,065,162 Method and system for down-converting an electromagnetic signal, and transforms for same 72 2000
6,694,128 Frequency synthesizer using universal frequency translation technology 90 2000
6,873,836 Universal platform module and methods and apparatuses relating thereto enabled by universal frequency translation technology 82 2000
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7,082,171 Phase shifting applications of universal frequency translation 65 2000
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7,010,559 Method and apparatus for a parallel correlator and applications thereof 73 2001
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6,975,848 Method and apparatus for DC offset removal in a radio frequency communication channel 67 2002
6,963,734 Differential frequency down-conversion using techniques of universal frequency translation technology 73 2002
6,836,650 Methods and systems for down-converting electromagnetic signals, and applications thereof 83 2002
7,076,011 Integrated frequency translation and selectivity 63 2003
7,107,028 Apparatus, system, and method for up converting electromagnetic signals 59 2004
 
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THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY (3)
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AT&T CORP. (2)
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Other [Check patent profile for assignment information] (7)
4,320,536 Subharmonic pumped mixer circuit 122 1979
4,716,388 Multiple output allpass switched capacitor filters 107 1984
5,010,585 Digital data and analog radio frequency transmitter 143 1990
5,214,787 Multiple audio channel broadcast system 114 1990
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5,915,278 System for the measurement of rotation and translation for modal analysis 101 1995
6,005,903 Digital correlator 108 1996

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
PARKERVISION, INC. (51)
7,515,896 Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships 32 2000
8,295,406 Universal platform module for a plurality of communication protocols 8 2000
7,321,735 Optical down-converter using universal frequency translation technology 44 2000
7,379,515 Phased array antenna applications of universal frequency translation 46 2001
7,460,584 Networking methods and systems 32 2002
7,379,883 Networking methods and systems 42 2002
7,321,751 Method and apparatus for improving dynamic range in a communication system 45 2002
7,321,640 Active polyphase inverter filter for quadrature signal generation 44 2003
7,454,453 Methods, systems, and computer program products for parallel correlation and applications thereof 33 2003
7,308,242 Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same 45 2004
7,822,401 Apparatus and method for down-converting electromagnetic signals by controlled charging and discharging of a capacitor 20 2004
7,496,342 Down-converting electromagnetic signals, including controlled discharge of capacitors 35 2004
7,386,292 Apparatus, system, and method for down-converting and up-converting electromagnetic signals 44 2004
7,483,686 Universal platform module and methods and apparatuses relating thereto enabled by universal frequency translation technology 31 2004
7,773,688 Method, system, and apparatus for balanced frequency up-conversion, including circuitry to directly couple the outputs of multiple transistors 25 2004
7,653,145 Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations 25 2005
7,539,474 DC offset, re-radiation, and I/Q solutions using universal frequency translation technology 32 2005
7,433,910 Method and apparatus for the parallel correlator and applications thereof 36 2005
7,697,916 Applications of universal frequency translation 23 2005
7,376,410 Methods and systems for down-converting a signal using a complementary transistor structure 41 2006
7,653,158 Gain control in a communication channel 27 2006
7,693,230 Apparatus and method of differential IQ frequency up-conversion 28 2006
7,724,845 Method and system for down-converting and electromagnetic signal, and transforms for same 24 2006
7,599,421 Spread spectrum applications of universal frequency translation 30 2006
7,529,522 Apparatus and method for communicating an input signal in polar representation 31 2006
8,160,196 Networking methods and systems 10 2006
7,546,096 Frequency up-conversion using a harmonic generation and extraction module 33 2007
7,936,022 Method and circuit for down-converting a signal 16 2008
7,554,508 Phased array antenna applications on universal frequency translation 33 2008
7,991,815 Methods, systems, and computer program products for parallel correlation and applications thereof 15 2008
7,937,059 Converting an electromagnetic signal via sub-sampling 16 2008
7,693,502 Method and system for down-converting an electromagnetic signal, transforms for same, and aperture relationships 23 2008
8,407,061 Networking methods and systems 5 2008
7,865,177 Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships 17 2009
7,826,817 Applications of universal frequency translation 21 2009
7,894,789 Down-conversion of an electromagnetic signal with feedback control 16 2009
8,019,291 Method and system for frequency down-conversion and frequency up-conversion 15 2009
8,233,855 Up-conversion based on gated information signal 9 2009
8,446,994 Gain control in a communication channel 5 2009
7,929,638 Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments 16 2010
8,036,304 Apparatus and method of differential IQ frequency up-conversion 15 2010
8,223,898 Method and system for down-converting an electromagnetic signal, and transforms for same 9 2010
8,077,797 Method, system, and apparatus for balanced frequency up-conversion of a baseband signal 16 2010
8,295,800 Apparatus and method for down-converting electromagnetic signals by controlled charging and discharging of a capacitor 8 2010
8,160,534 Applications of universal frequency translation 10 2010
8,340,618 Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships 10 2010
8,224,281 Down-conversion of an electromagnetic signal with feedback control 9 2010
8,190,116 Methods and systems for down-converting a signal using a complementary transistor structure 9 2011
8,229,023 Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments 10 2011
8,190,108 Method and system for frequency up-conversion 9 2011
8,594,228 Apparatus and method of differential IQ frequency up-conversion 1 2011
 
UNIVERSITAT BERN (1)
7,620,378 Method and system for frequency up-conversion with modulation embodiments 26 2007

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