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:
Jan. 17, 2017
Filed:
Sep. 03, 2014
Qualcomm Incorporated, San Diego, CA (US);
Ju-Yong Do, Palo Alto, CA (US);
Gengsheng Zhang, Cupertino, CA (US);
Sundar Raman, Fremont, CA (US);
Chandrakant Mehta, Santa Clara, CA (US);
Arie Rahmat, San Diego, CA (US);
Lionel Jacques Garin, Palo Alto, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Disclosed are methods, systems and devices for providing location based services in a venue. To estimate its location, in a particular implementation, a mobile device may obtain a measurement of a range to a transponder device positioned at a known location based on measurements of a signal round-trip time (RTT) in a message exchange with the transponder device. Positioning assistance data from a server may enable the mobile device to measure a delay at the transponder device in providing a response to a probe message to thereby more accurately measure the signal RTT.