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:
Feb. 04, 2014
Filed:
Sep. 30, 2011
Michael Riley Harrell, Boulder, CO (US);
William Hayden Connor, Boulder, CO (US);
Marzban R. Palsetia, Boulder, CO (US);
John Charles Curlander, Boulder, CO (US);
Heinrich Frick, Boulder, CO (US);
Jesse Wright, Boulder, CO (US);
Mark Joseph Barkmeier, Golden, CO (US);
Michael Riley Harrell, Boulder, CO (US);
William Hayden Connor, Boulder, CO (US);
Marzban R. Palsetia, Boulder, CO (US);
John Charles Curlander, Boulder, CO (US);
Heinrich Frick, Boulder, CO (US);
Jesse Wright, Boulder, CO (US);
Mark Joseph Barkmeier, Golden, CO (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
A receiving device captures sounds signals (e.g., ultrasonic) from multiple sound signal sources, selects the sound signals satisfying a reliability condition for use in determining an initial position of the receiving device relative to the corresponding sound signal sources, determines the initial position of the receiving device using multilateration of the selected sound signals, and updates the current position of the receiving device as the reliability of individual sound signals varies in the presence of dynamically changing environmental interference, multipathing, and movement between the receiving device and the sound signal sources.