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:
Feb. 21, 2012
Filed:
Sep. 29, 2008
Robert E. Stengel, Pompano Beach, FL (US);
Charles R. Ruelke, Margate, FL (US);
Sumit A. Talwalkar, Plantation, FL (US);
Robert E. Stengel, Pompano Beach, FL (US);
Charles R. Ruelke, Margate, FL (US);
Sumit A. Talwalkar, Plantation, FL (US);
Motorola Solutions, Inc., Schaumburg, IL (US);
Abstract
A method and apparatus for processing a radio frequency (RF) signal is provided. The method includes generating a periodic square wave local oscillator (LO) signal of a first phase, a periodic square wave LO signal of a second phase, and a chopping signal. The method further includes coding the periodic square wave LO signal of the first phase and the periodic square wave LO signal of the second phase synchronously with the chopping signal to generate a first set of synchronized signals () and a second set of synchronized signals (), respectively. A phase difference between the first phase and the second phase is a predefined value. The RF signal is processed with the first set of synchronized signals () and the second set of synchronized signals () to obtain an in-phase intermediate frequency (IF) signal () and a quadrature-phase IF signal (), respectively.