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:
Apr. 22, 2008
Filed:
Aug. 07, 2002
Richard H. Hinkson, Plainview, NY (US);
Richard H. Hinkson, Plainview, NY (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
In a security system having wireless transmitters, a wireless receiver module, and a control panel processing signals sent from the transmitters to the receiver module, the present invention is a method of prefiltering the received wireless signals by first generating a prefiltering map by the control panel. For each of the transmitters in the security system, an algorithm such as a hashing function is performed on the identification number of each transmitter enrolled in the system with the control panel. The results of the algorithm are stored in a prefiltering map, which is then sent to the receiver module(s). For each wireless message received from a transmitter, the receiver module extracts from the message the identification number of the transmitter that transmitted the message. The receiver module then performs the algorithm on the extracted identification number, and then compares the result against the prefiltering map. The receiver module will forward the message to the control panel if the comparison result is true; or it will discard the message if the comparison result is false.