1
David F Sorrells, Michael J Bultman, Robert W Cook, Richard C Looke, Charley D Moses Jr: Bar code scanner using universal frequency translation technology for up-conversion and down-conversion. Parker Vision, Sterne Kessler Goldstein & Fox P L L C, October 21, 2003: US06634555 (84 worldwide citation)

Frequency translation and applications include, but are not limited to, frequency down-conversion, frequency up-conversion, enhanced signal reception, unified down-conversion and filtering, and combinations and applications of same.


2
David F Sorrells, Michael J Bultman, Charles D Clements, Robert W Cook, Joseph M Hamilla, Richard C Looke, Charley D Moses Jr, Gregory S Silver: Aliasing communication system with multi-mode and multi-band functionality and embodiments thereof, such as the family radio service. Parker Vision, Sterne Kessler Goldstein & Fox P L L C, February 28, 2006: US07006805 (78 worldwide citation)

A receiver having multi-mode and multi-band functionality and capabilities is described herein. The receiver is capable of selectively operating over a plurality of bands and channels. The receiver operates in a plurality of modes, including but not limited to a single band/channel mode, and a multi ...


3
Martin R Johnson, Jonathan S Jensen, Robert T Short, Jamison L Young, David F Sorrells, Michael J Bultman, Robert W Cook, Richard C Looke, Charley D Moses Jr: Phased array antenna applications on universal frequency translation. Parker Vision, Sterne Kessler Goldstein & Fox P L L C, June 30, 2009: US07554508 (34 worldwide citation)

A universal frequency translation module (UFT) frequency translates an electromagnetic (EM) input signal by sampling the EM input signal according to a periodic control signal (also called an aliasing signal). By controlling the relative sampling time, the UFT module implements a relative phase shif ...


4
David F Sorrells, Michael J Bultman, Robert W Cook, Richard C Looke, Charley D Moses Jr: Applications of universal frequency translation. Parker Vision, Sterne Kessler Goldstein & Fox P L L C, November 2, 2010: US07826817 (22 worldwide citation)

Frequency translation and applications of same are described herein. Such applications include, but are not limited to, frequency down-conversion, frequency up-conversion, enhanced signal reception, unified down-conversion and filtering, and combinations and applications of same.


5
David F Sorrells, Michael J Bultman, Robert W Cook, Richard C Looke, Charley D Moses Jr: Methods and systems for down-converting a signal using a complementary transistor structure. Parker Vision, Workman Nydegger, May 29, 2012: US08190116 (10 worldwide citation)

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 accor ...


6
Holtz Alex, Snyder Robert J, Larocque Marcel, Couch William H, Mcallister Benjamin, Hoeppner Charles M, Tingle Keith Gregory, Armbruster David A: Method, system, and computer program product for producing and distributing enhanced media. Parker Vision, June 2, 2004: EP1423794-A1 (4 worldwide citation)

A method, system, and computer program product are provided to edit and encode enriched multimedia productions for live, delayed, or on-demand web casts or other distribution. The present invention is configured to operate independent of the system platform and media format. The present invention ha ...


7
David F Sorrells, Gregory S Rawlins, Michael W Rawlins: Multiple input single output device with vector signal and bias signal inputs. Parker Vision, Thomas F Presson, September 19, 2017: US09768733

Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one or more of the signals are contro ...


8
Gregory S Rawlins, David F Sorrells: Control of MISO node. PARKER VISION, Thomas F Presson, July 11, 2017: US09705540

A method for generating a radio frequency (RF) signal is disclosed herein. The method includes generating, with a plurality of analog-to-digital converters, analog control signals. A modulated control signal is generated, using a modulator, based on the analog control signals. A biased modulated con ...


9
Gregory S Rawlins, David F Sorrells: Systems and methods of RF power transmission, modulation, and amplification. PARKER VISION, Thomas F Presson, March 28, 2017: US09608677

An apparatus, system, and method are provided for energy conversion. For example, the apparatus can include a trans-impedance node, a reactive element, and a trans-impedance circuit. The reactive element can be configured to transfer energy to the trans-impedance node. The trans-impedance circuit ca ...


10
Sorrels David F, Bultman Michael J, Cook Robert W, Looke Richard C, Moses Charley D Jr, Rawlins Gregory S, Rawlins Michael W: Method and system for down-converting an electromagnetic signal. Parker Vision, May 28, 2003: EP1315285-A2

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 accor ...