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. 30, 2014
Filed:
Sep. 12, 2011
Deric W. Waters, Dallas, TX (US);
Sthanunathan Ramakrishnan, Bangalore, IN;
Ariton E. Xhafa, Plano, TX (US);
Jaiganesh Balakrishnan, Bangalore, IN;
Tarkesh Pande, Dallas, TX (US);
Sandeep Kasargod, Bangalore, IN;
Saket Thukral, Bangalore, IN;
Deric W. Waters, Dallas, TX (US);
Sthanunathan Ramakrishnan, Bangalore, IN;
Ariton E. Xhafa, Plano, TX (US);
Jaiganesh Balakrishnan, Bangalore, IN;
Tarkesh Pande, Dallas, TX (US);
Sandeep Kasargod, Bangalore, IN;
Saket Thukral, Bangalore, IN;
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
Apparatus and methods for scanning for access points (APs) for wireless local area network (WLAN) positioning. In one embodiment a wireless device includes a WLAN positioning system. The WLAN positioning system includes an AP scanner. The AP scanner is configured to determine which WLAN channels are being used by APs proximate to the wireless device. The AP scanner is also configured to scan for AP transmissions only the WLAN channels determined to be used by APs proximate to the wireless device. The AP scanner is further configured to extract signal strength and AP identification information for WLAN positioning from the AP transmissions on the scanned channels.