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. 11, 2019
Filed:
Sep. 22, 2016
Amazon Technologies, Inc., Seattle, WA (US);
Nikolai Orlov, Toronto, CA;
Nathan Pius O'Neill, Snohomish, WA (US);
Jeremy Samuel De Bonet, Southborough, MA (US);
AMAZON TECHNOLOGIES, INC., Seattle, WA (US);
Abstract
A facility is equipped with floor tiles. Each tile is equipped with transmitters that transmit on specific frequencies. A particular set of frequencies identifies a particular floor tile and a particular segment on the floor tile. A user electromagnetically couples to one or more antennas of the tile, acting as a signal path for the signals on the particular set of frequencies. A receiver detects these signals, and the information about the frequencies detected and relative signal strength may be used to determine a location of the user within the facility. Receivers in the floor tiles allow a first tile to transmit its set of frequencies and a second tile to receive the set of frequencies and determine where the user has stepped from. By concatenating these steps a path of the user may be determined. Receivers in shelves facilitate disambiguation of one user from another when interacting with items.