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:
Jul. 26, 2011
Filed:
Dec. 07, 2007
Daniel S. Rokusek, Long Grove, IL (US);
Gary L. Christopher, Fox River Grove, IL (US);
Peter A. Kindinger, Cary, IL (US);
David A. Vanyek, Libertyville, IL (US);
Kevin L. Weirich, Algonquin, IL (US);
Daniel S. Rokusek, Long Grove, IL (US);
Gary L. Christopher, Fox River Grove, IL (US);
Peter A. Kindinger, Cary, IL (US);
David A. Vanyek, Libertyville, IL (US);
Kevin L. Weirich, Algonquin, IL (US);
Motorola Mobility, Inc., Libertyville, IL (US);
Abstract
A transmitter device () receives an audio signal from an audio source device (), and transmits the audio signal at a low power over a commercial broadcast channel to a local receiver (). The transmitter device selects an initial channel by scanning the available spectrum, partitioned into sub-bands (-), and measuring the received signal strength in each channel. The channel having the lowest strength is used to set a threshold. The sub-band with most channels meeting the threshold is initially selected, and the channel in the initially selected sub-band with the lowest received signal strength is selected for initial use. A context-based weighting factor may be applied in selecting the initial channel or in selecting subsequent channels when the initial channel conditions degrade.