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.:
Date of Patent:
Jan. 26, 2010
Filed:
May. 23, 2003
Applicants:
Stefan Donat, München, DE;
Wolfgang Richter, Germering, DE;
Peter Rosenbeck, Gauting, DE;
Inventors:
Assignee:
Ident Technology AG, Wessling, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 13/14 (2006.01); G08B 1/08 (2006.01); H04M 11/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A presence analysis system for objects carried by a user has a signal-transmitter provided on the object to be observed in terms of its presence for transmitting an object or signal-transmitter specific signal and a receiver for receiving signals including the object or signal-transmitter specific signal. A capacitative link formed by the person or clothing of the person conducts the signal from the transmitter to the receiver. An analysis unit coupled with the receiver generates an output signal indicating the presence or absence of the object by analysis of the signals received.