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:
Nov. 27, 2018
Filed:
Apr. 13, 2017
X Development Llc, Mountain View, CA (US);
Edward Keyes, Mountain View, CA (US);
Oliver Bowen, Redwood City, CA (US);
X Development LLC, Mountain View, CA (US);
Abstract
Aspects of the disclosure provide for a method for determining a position of a beacon. A plurality of frames comprising pixel values is collected. Each frame is an image of a location. A static background of the location is determined by averaging the pixel values of the plurality of frames, pixel difference values are determined for each frame by subtracting the determined static background from the pixel values of each frame. Using the pixel difference values for each frame in the plurality of frames, a first subset of frames and a second subset of frames are identified. An average pixel difference is then determined by averaging the pixel difference values of the first subset of frames and an inverse of the pixel difference values of the second subset of frames. Using the average pixel difference, the position of a beacon at the location is determined.