Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1998-08-04
1999-10-05
Mullen, Thomas
Communications: electrical
Condition responsive indicating system
Specific condition
340571, 3406866, 340328, G08B 1314
Patent
active
059631317
ABSTRACT:
A motion sensitive theft detector system for portable articles featuring two way communication between the theft detector unit installed in or affixed to the portable article and the control unit carried by the owner. The theft detector communicates alerts to the control unit allowing the user to screen for false alarms and to trigger an alarm at the portable article when warranted. A second alarm function selected by the mode switch sounds an alarm automatically in response to motion according to an adaptive alarm sequence. The adaptive alarm varies the alarm in response to frequency and duration of motion so that isolated movement triggers a warning but persistent motion triggers a full scale alarm.
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Bresler Robert G.
D'Angelo Michael R.
Eggert Geoffrey M.
Qualitz Joseph E.
Lexent Technologies, Inc.
Mullen Thomas
Pham Chinh
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