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:
May. 01, 2018

Filed:

May. 03, 2017
Applicant:

Primax Electronics Ltd., Taipei, TW;

Inventors:

Shi-Jie Zhang, Taipei, TW;

Che-Yen Huang, Taipei, TW;

Ying-Che Tseng, Taipei, TW;

Wen-Pin Hsieh, Taipei, TW;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05B 19/42 (2006.01); G08B 13/14 (2006.01); H04B 17/318 (2015.01); H04W 4/02 (2018.01);
U.S. Cl.
CPC ...
G08B 13/1427 (2013.01); H04B 17/318 (2015.01); H04W 4/021 (2013.01);
Abstract

An anti-theft system and an operating method are provided. The anti-theft system includes a wearable device and a portable electronic device. The wearable device includes a first wireless module and a first processing module. The portable electronic device includes a second wireless module, a second processing module and a positioning module. The first wireless module and the second wireless module are in a wireless connection with each other. The second wireless module detects a received signal strength indicator value of the wireless connection. If the received signal strength indicator value is lower than a predetermined signal strength value, the positioning module is enabled to generate plural position data within a predetermined time period. Moreover, the second processing module calculates a displacement of the portable electronic device according to the plural position data and determines whether a warning mode is enabled according to the displacement.


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