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:
Aug. 09, 2016

Filed:

Dec. 20, 2012
Applicant:

Convotherm Elektrogeraete Gmbh, Eglfing, DE;

Inventor:

Hannes Wild, Riegsee, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 7/00 (2006.01); F24C 7/08 (2006.01); G07C 9/00 (2006.01); G08B 13/14 (2006.01); G01K 1/02 (2006.01); G08B 21/02 (2006.01); H04W 4/00 (2009.01);
U.S. Cl.
CPC ...
G06K 7/0008 (2013.01); F24C 7/082 (2013.01); G01K 1/024 (2013.01); G07C 9/00 (2013.01); G08B 13/1427 (2013.01); G08B 21/0275 (2013.01); G08B 21/0247 (2013.01); H04W 4/008 (2013.01);
Abstract

A system that provides notice of a lost signal. A wireless device and a control device employ radio frequency identification (RFID) technology, which uses radio frequency signals to communicate with one another via communication link having a reception range. The control device transmits a signal to the wireless device via the communication link. The wireless device responds by transmitting a return signal via the communication link. The control device processes the return signal to determine if the wireless device is within the reception range, if not, the control device provides an audible, written or visual alarm.


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