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:
Jun. 13, 2006
Filed:
Apr. 22, 2003
Wayne Wiggins Ballantyne, Coconut Creek, FL (US);
Thomas Michael King, Tempe, AZ (US);
Wayne Wiggins Ballantyne, Coconut Creek, FL (US);
Thomas Michael King, Tempe, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A multiple channel receiver () includes a communications receiver synthesizer () and at least one numerically controlled oscillator (NCO) () that produce local oscillator signals that are derived from a common reference oscillator (). A DSP () and CPU () perform automatic frequency control (AFC) by adjustment of the reference oscillator () based upon a signal received by a receive channel using the local oscillator signal produced by the communications receiver synthesizer (). The CPU () also provides a synchronous indication of adjustments to the reference oscillator () to control circuitry for the at least one NCO () so that the configuration of the NCO () can be altered so as to maintain a substantially constant frequency output during the adjustment of the reference oscillator ().