Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1996-01-11
1998-02-03
Swann, Glen
Communications: electrical
Condition responsive indicating system
Specific condition
340531, 340538, 340539, 340669, 340689, G08B 1314
Patent
active
057149330
ABSTRACT:
A system for protection of goods against theft includes a control unit and protection modules associated with the goods, the control unit including cordless communication means and the protection modules including movement detection circuitry to find out whether the goods are being handled, and cordless communications circuitry to send an alarm message to the control unit if a movement is detected.
REFERENCES:
patent: 4337462 (1982-06-01), Lemelson
patent: 4818970 (1989-04-01), Natale et al.
patent: 4885564 (1989-12-01), Vercellotti et al.
patent: 5317304 (1994-05-01), Choi
patent: 5543778 (1996-08-01), Stouffer
French Search Report from French Patent Application 95 00333, filed Jan. 10, 1995.
Morris James H.
SGS-Thomson Microelectronics S.A.
Swann Glen
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