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:
Oct. 30, 2018
Filed:
Jun. 01, 2017
Athentek Innovations, Inc., Palo Alto, CA (US);
David S. De Lorenzo, Palo Alto, CA (US);
Huanchun Ye, Cupertino, CA (US);
Ivy H. Tseng, Taipei, TW;
Yi-Hsiu Wang, Palo Alto, CA (US);
Athentek Innovations, Inc., Palo Alto, CA (US);
Abstract
An indoor positioning system determines the location of a mobile device by comparing measured signal strengths to a database determined via offline calibration. Automated maintenance and repair of the database are facilitated by accurately characterizing indoor radio signal propagation. Systems and methods for updating a signal strength database are disclosed. In one variation, a computer-implemented method of discovering a new or moved wireless access point (AP) within an indoor environment involves flagging one of the wireless APs as the new or moved AP; determining a location of the new or moved AP using information from at least one of an installation log and an AP location solver; determining transmit strengths and estimated received signal strengths of signals transmitted from calibration reference points (RPs) to the AP using a spatially-dependent path-loss model; and adding the transmit strengths and estimated received signal strengths to the signal strength database.