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:
Jan. 27, 2009
Filed:
Sep. 28, 2006
Gregory J. Buchwald, Crystal Lake, IL (US);
Steven F. Gillig, Roselle, IL (US);
S. David Silk, Barrington, IL (US);
Lawrence M. Ecklund, Wheaton, IL (US);
Stephen L. Kuffner, Algonquin, IL (US);
Gregory J. Buchwald, Crystal Lake, IL (US);
Steven F. Gillig, Roselle, IL (US);
S. David Silk, Barrington, IL (US);
Lawrence M. Ecklund, Wheaton, IL (US);
Stephen L. Kuffner, Algonquin, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
During operation of a secondary communication system, cells () are formed by a plurality of localized nodes () to alert other nodes within the cell of frequencies which must be protected or otherwise avoided. All nodes within the cell monitor a differing subset of all frequencies available, and share information with respect to acceptable and protected frequencies with each other via low-power, short-range communication. Each node then forms a list of available channels for communication, and chooses a single node to report this information back to controller.