Tamper monitoring system and method

Details Tamper monitoring system and method Tamper monitoring system and method

2006-04-26

2008-12-30

Tweel, Jr., John A (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S556000, C340S568200

Reexamination Certificate

active

07471203

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.

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