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:
Nov. 19, 2013
Filed:
Sep. 14, 2012
David F. Sorrells, Middleburg, FL (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, Heathrow, FL (US);
Michael W. Rawlins, Lake Mary, FL (US);
David F. Sorrells, Middleburg, FL (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, Heathrow, FL (US);
Michael W. Rawlins, Lake Mary, FL (US);
ParkerVision, Inc., Jacksonville, FL (US);
Abstract
Methods, systems, and apparatuses for down-converting and up-converting an electromagnetic signal. In embodiments, the invention operates by receiving an electromagnetic signal and recursively operating on approximate half cycles of a carrier signal. The recursive operations can be performed at a sub-harmonic rate of the carrier signal. The invention accumulates the results of the recursive operations and uses the accumulated results to form a down-converted signal. In embodiments, up-conversion is accomplished by controlling a switch with an oscillating signal, the frequency of the oscillating signal being selected as a sub-harmonic of the desired output frequency. When the invention is being used in the frequency modulation or phase modulation implementations, the oscillating signal is modulated by an information signal before it causes the switch to gate a bias signal. The output of the switch is filtered, and the desired harmonic is output.