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. 04, 2006
Filed:
Feb. 17, 2004
Applicants:
Wai Lee, Austin, TX (US);
Shawn Stapleton, Austin, TX (US);
Kelly Mekechuk, Austin, TX (US);
Inventors:
Assignee:
Prophesi Technologies, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F 3/38 (2006.01);
U.S. Cl.
CPC ...
Abstract
A radio frequency (RF) switching power amplifier comprises: a switching amplifierto provide an amplified signal within an RF band; and a delta signal modulator (DSM)that is operable; to control the switching amplifier in a feedback configuration, to process an input signal within an intermediate frequency (IF) band where the input signal corresponds to a base band signal and the amplified signal, and to provide an output signal within the RF band to drive the switching amplifier. Certain embodiments allow for or compensate for a floating or variable IF band and multiple RF bands.