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:
Jun. 28, 2016
Filed:
Mar. 14, 2013
Google Inc., Mountain View, CA (US);
Arunesh Mishra, San Francisco, CA (US);
GOOGLE INC., Mountain View, CA (US);
Abstract
According to an embodiment, a method of estimating a distance to a wireless access point in an indoor environment using a signal propagation model begins with the receipt of a first received signal strength value based on a signal received at a first device from a wireless access point in the indoor environment. Based on a predetermined characteristic of the indoor environment, an estimate is made that the received signal originated from a first distance from the first device. A signal propagation characteristic is estimated based on the first signal strength and the estimated first distance and a plurality of signal samples are received from a plurality of devices. Finally, a signal propagation model for the indoor environment is created based on the signal propagation characteristic and the signal samples, and a distance to any wireless access point in the indoor environment is estimated based on the signal propagation model.