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.:

US 8319629 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 27, 2012

Filed:

Oct. 27, 2009
Applicant:

Chao-tsung Fan, Taipei Hsien, TW;

Inventor:

Chao-Tsung Fan, Taipei Hsien, TW;

Assignee:

Hon Hai Precision Industry Co., Ltd., Tu-Cheng, New Taipei, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 1/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

An alarm system includes a number of radio frequency identification (RFID) tags, an RFID reader, a warning unit, and a control module. The RFID reader receives radio-frequency signals from some of the number of the RFID tags via an antenna when the some of the number of the RFID tags are in a determined area around the RFID reader. The control module activates the warning unit when a radio-frequency signal from at least one of the number of RFID tags is not received by the RFID reader.


Find Patent Forward Citations

Quick Actions:

Fan, Chao-Tsung. (2012). Alarm system and method (U.S. Patent No. 8319629). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8319629

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…