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:
Dec. 30, 2008
Filed:
Apr. 26, 2006
David Worthy, Gilbert, AZ (US);
Charles Glasser, Scottsdale, AZ (US);
Yazid Sidi, Mesa, AZ (US);
James Rodgers, Mesa, AZ (US);
David Worthy, Gilbert, AZ (US);
Charles Glasser, Scottsdale, AZ (US);
Yazid Sidi, Mesa, AZ (US);
James Rodgers, Mesa, AZ (US);
RF Code, Inc., Austin, TX (US);
Abstract
A tamper monitoring system includes at least one active tag and a transmission link. The one active tag includes a transmitter and a receiver. The first end of the transmission link is connected to the transmitter and the second end is connected to the receiver. The transmitter is designed to transmit a non-constant signal to the transmission link to the receiver, and the receiver is designed to receive a signal from the transmission link and to correlate the received signal with the transmitted signal. When the received signal does not correlate with the transmitted signal, the active tag transmits a tamper beacon.