Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1980-11-03
1982-06-22
Waring, Alvin H.
Communications: electrical
Condition responsive indicating system
Specific condition
340539, 340572, G08B 1300
Patent
active
043365310
ABSTRACT:
A shoplifting system includes a first and second post-like housings positioned in a store on opposite sides of the doorway. The first housing includes an electronic receiver for receiving a wireless signal transmitted by a hand-held transmitter unit that is actuatable by a store employee who notices shoplifting activity by a shopper. The receiver causes actuating of an alarm device which issues an audible alarm sound in response to a signal received from the hand-held transmitter unit. The second housing is a "dummy" housing containing no detection circuitry. However, the second housing and first housing each have an appearance which suggests that both housings contain detection circuits that cooperate to detect the presence of detectable tags attached to products on sale in the store. A warning sign is placed on one of the housings.
REFERENCES:
patent: 4189721 (1980-02-01), Doell
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