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.

Date of Patent:
Dec. 27, 2016

Filed:

Nov. 25, 2013
Applicant:

Amazon Technologies, Inc., Reno, NV (US);

Inventors:

Jin Dong Kim, Cupertino, CA (US);

Arvind Thiagarajan, Cambridge, MA (US);

Assignee:

Amazon Technologies, Inc., Reno, NV (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08C 17/00 (2006.01); H04W 52/02 (2009.01);
U.S. Cl.
CPC ...
H04W 52/0277 (2013.01);
Abstract

A misplaced user device deactivates processors and other resources so as to conserve residual battery power, while a radio frequency (RF) circuit remains active. The RF circuit transmits a beacon signal at time intervals to aid a user in locating and recovery of the misplaced user device by way of another user device operating in search mode. Information regarding the identity or other characteristics of the misplaced user device may be encoded in the beacon signal to assist in the search. The misplaced user device may modify the beacon signaling RF power, time intervals, information, or other parameters in response to an acknowledgement signal received from the searching user device.


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