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. 17, 2009
Filed:
Jul. 29, 2005
Jose E. Korneluk, Boynton Beach, FL (US);
Bobby D. Anderson, Gilbert, AZ (US);
Kristi A. Haverkamp, Chandler, AZ (US);
Keith M. Klug, Mesa, AZ (US);
Charles H. Segerson, Tempe, AZ (US);
Jose E. Korneluk, Boynton Beach, FL (US);
Bobby D. Anderson, Gilbert, AZ (US);
Kristi A. Haverkamp, Chandler, AZ (US);
Keith M. Klug, Mesa, AZ (US);
Charles H. Segerson, Tempe, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A mobile communication device () and peer mobile communication devices () are capable of direct voice and data communication. The mobile communication device has a reference oscillator () which is used for generating operating frequencies, and is subject to frequency errors resulting from manufacturing tolerances, heat, and other error sources. The mobile communication device receives a frequency correction message () from a peer mobile communication device that has calibrated its reference oscillator. The frequency correction message contain offset information which is used by the mobile communication device to determine its offset () from a nominal frequency ().