Method of indicating the threat level of an incoming shock to an

Details Method of indicating the threat level of an incoming shock to an Method of indicating the threat level of an incoming shock to an

1993-08-30

1996-07-02

Swann, Glen

Communications: electrical

Land vehicle alarms or indicators

Of burglary or unauthorized use

340566, G08B 1302

Patent

active

055326706

ABSTRACT:
A method of indicating the threat level of an incoming shock to an electronically secured vehicle and eliminating spurious signals developed from the interaction of EMF and RF energy fields with the shock sensor including the steps of sensing a shock delivered to the vehicle indicative of an attempted intrusion, generating an electric signal the strength of which is proportional to the intensity of the shock, analyzing the signal to determine if it is of a low, generally non-threatening intensity or a higher, generally security-threatening intensity, ignoring the first 5 milliseconds of the signal produced by the shock sensor, ignoring all signals that do not disappear and later reappear, and producing either a first pulse representing a low intensity signal, or separate first and second pulses representing a signal containing both low intensity and higher intensity components.

REFERENCES:
patent: 4584569 (1986-04-01), Lopez et al.
patent: 4866417 (1989-09-01), DeFino et al.
patent: 5084697 (1992-01-01), Hwang

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