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 8593281 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 26, 2013

Filed:

Jun. 02, 2009
Applicants:

Dong Joon Park, Gumi-si, KR;

Soon Shik Hwang, Gumi-si, KR;

Inventors:

Dong Joon Park, Gumi-si, KR;

Soon Shik Hwang, Gumi-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 13/14 (2006.01);
U.S. Cl.
CPC ...
Abstract

A passage alert system and method using a Radio Frequency IDentification (RFID) technology are provided. The method and system are capable of alerting when a mobile terminal having an RFID tag passes the entrance at which an RFID reader is installed, whereby the owner is therefore aware of the mobile terminal. In the passage alert method of the present invention, when the first communication terminal passes an entrance at which the second communication terminal is installed, one of the first and second communication terminals resets the passage mode of the first communication terminal with an output of an alert message corresponding to the changed passage mode such that the owner may be aware of the first communication terminal, thereby reducing the possibility of losing the first mobile communication terminal.


Find Patent Forward Citations

Park, Dong. (2013). Passage alert system and method using rfid (U.S. Patent No. 8593281). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8593281

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