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:
Dec. 28, 2010
Filed:
Jan. 25, 2007
Gregory J. Buchwald, Crystal Lake, IL (US);
Lawrence M. Ecklund, Wheaton, IL (US);
Steven F. Gillig, Roselle, IL (US);
Terry K. Mansfield, Palatine, IL (US);
Gregory J. Buchwald, Crystal Lake, IL (US);
Lawrence M. Ecklund, Wheaton, IL (US);
Steven F. Gillig, Roselle, IL (US);
Terry K. Mansfield, Palatine, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
During operation of a secondary communication system, nodes having different channel monitoring capabilities or requirements will cooperatively monitor possible frequencies for transmissions, each node using only a subset of all possible modulation sensing schemes. All nodes will share channel occupancy information to other nodes within the communication system. For example, a first group of nodes may monitor possible frequencies for television transmissions, while a second group of nodes may monitor the possible frequencies for APCO 25 transmissions. A group of nodes may also cooperatively monitor possible frequencies for more than one type of modulation transmission. Channel information will be shared among the nodes.