초록 ▼

A security system includes a pressure sensing circuit for generating an electrical signal in response to changes in pressure and a signal processing circuit, connected to receive the electrical signal, for determining whether the electrical signal represents an intrusion pattern. A pressure sensing

A security system includes a pressure sensing circuit for generating an electrical signal in response to changes in pressure and a signal processing circuit, connected to receive the electrical signal, for determining whether the electrical signal represents an intrusion pattern. A pressure sensing circuit generates an electrical signal in response to changes in pressure and a trigger circuit for determining whether an intrusion has occurred by determining whether a peak of the electrical signal has an amplitude that exceeds a floating amplitude threshold, wherein the floating amplitude threshold compensates for ambient noise in the enclosed area. A monitor mode measures intrusion data in a specific enclosed area and determines security system thresholds in accordance with the measured intrusion data.

대표청구항 ▼

A security system comprising: a pressure sensing circuit for generating an electrical signal in response to changes in pressure; and a signal processing circuit, connected to receive the electrical signal, for determining whether the electrical signal represents an intrusion pattern, further compris

A security system comprising: a pressure sensing circuit for generating an electrical signal in response to changes in pressure; and a signal processing circuit, connected to receive the electrical signal, for determining whether the electrical signal represents an intrusion pattern, further comprising: a trigger circuit, connected to receive the electrical signal, for determining whether the electrical signal represents a possible intrusion and for waking up the signal processing circuit, when the electrical signal represents a possible intrusion, to initiate the signal processing circuit\s determination as to whether the electrical signal represents the intrusion pattern.