The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 11, 2006
Filed:
May. 10, 2000
Francis J. Smith, Livermore, CA (US);
Michael J. Bultman, Jacksonville, FL (US);
Robert W. Cook, Switzerland, FL (US);
Richard C. Looke, Jacksonville, FL (US);
Charley D. Moses, Jr., Jacksonville, FL (US);
Gregory S. Rawlins, Lake Mary, FL (US);
Michael W. Rawlins, Lake Mary, FL (US);
Robert T. Short, Salt Lake City, UT (US);
David F. Sorrells, Middleburg, FL (US);
Francis J. Smith, Livermore, CA (US);
Michael J. Bultman, Jacksonville, FL (US);
Robert W. Cook, Switzerland, FL (US);
Richard C. Looke, Jacksonville, FL (US);
Charley D. Moses, Jr., Jacksonville, FL (US);
Gregory S. Rawlins, Lake Mary, FL (US);
Michael W. Rawlins, Lake Mary, FL (US);
Robert T. Short, Salt Lake City, UT (US);
David F. Sorrells, Middleburg, FL (US);
ParkerVision, Inc., Jacksonville, FL (US);
Abstract
Coherent detection of a received EM signal using universal frequency translation (UFT) is described herein. The received EM signal is sampled according to a sub-harmonic LO signal, where the LO signal is in frequency and phase coherence with the received EM signal. The coherent receiver includes a down-converter/demodulator and a synthesizer/loop filter that are both implemented using UFT technology. The down-converter/demodulator samples the EM input signal using a UFT module according to the coherent sub-harmonic LO signal that is generated by the synthesizer/loop filter. The synthesizer/loop filter generates the coherent LO signal using a phase detector, a loop filter, and an up-converter. The phase detector and up-converter are implemented using UFT modules.