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:
Apr. 04, 2017
Filed:
Sep. 10, 2013
Qualcomm Incorporated, San Diego, CA (US);
Andreas Klaus Wachter, Menlo Park, CA (US);
Kirk Allan Burroughs, Alamo, CA (US);
Lionel Jacques Garin, Palo Alto, CA (US);
Stephen William Edge, Escondido, CA (US);
Bruce Everett Wilson, Palo Alto, CA (US);
Carlos Manuel Puig, Santa Clara, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Systems, apparatus and methods for populating and using a pressure database to determine an altitude of a unit with an unknown altitude are presented. A pressure from one or more barometric pressure sensors linked to respective base stations are interpolated to determine a reference pressure (e.g., at sea level) at arbitrary coordinates (x,y) having pressure reading. For example, a mobile station at the arbitrary coordinates (x,y) records a pressure at the mobile station. A difference between this pressure at the mobile station and the interpolated reference pressure is determined, which may directly be interpreted as a defined altitude of the mobile station.