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:
May. 14, 2019
Filed:
Jun. 29, 2017
Applicant:
Amazon Technologies, Inc., Seattle, WA (US);
Inventors:
Arvind Thiagarajan, Cambridge, MA (US);
Evan Duke Jeng, Los Altos, CA (US);
Andrew David Price, Santa Clara, CA (US);
Assignee:
Amazon Technologies, Inc., Seattle, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 15/16 (2006.01); H04W 4/04 (2009.01); G01S 1/74 (2006.01); H04L 5/00 (2006.01); H04W 4/029 (2018.01);
U.S. Cl.
CPC ...
H04W 4/04 (2013.01); G01S 1/74 (2013.01); H04L 5/005 (2013.01); H04W 4/029 (2018.02);
Abstract
Described is an improved active-beacon/passive-listener time difference of arrival navigation system that relies on the multiple beacons to transmit uncoded acoustic pulses of a same frequency that propagate in the system at a same time for high-speed device tracking. Listening devices may receive multiple encoded radio frequency pulses (RF) prior to a single acoustic pulse, and then resolve which RF pulse corresponds to the acoustic pulse using triangulation techniques.