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:
Aug. 09, 2011
Filed:
May. 28, 2010
Craig H. Barratt, Redwood City, CA (US);
Craig H. Barratt, Redwood City, CA (US);
Atheros Communications, Inc., San Jose, CA (US);
Abstract
A system and method are described for repeatedly and efficiently performing a wireless communication channel survey to determine whether comparable communications devices exist, which frequencies are in use, and the identities of the comparable communications devices. A beacon data table stores received beacon data which is used to predict beacon arrival times, thereby allowing a receiver to be tuned away from an active data communications channel for a shorter dwell time than a beacon period. A further efficiency can be gained if beacon generators cooperatively stagger their beacon times according to one or more measurable characteristics of the beacon generator, e.g. the operating channel number and the SSID.