Deactivator for resonance labels

Details Deactivator for resonance labels Deactivator for resonance labels

1992-02-12

1994-05-24

Willis, Davis L.

Registers

Coded record sensors

Particular sensor structure

235472, 340572, G06K 710

Patent

active

053150961

ABSTRACT:
The described device is part of a product theft prevention system and is used for deactivating resonance labels. It is intended for use in combination with a hand-held optoelectronic bar code reader (1), so as to permit the deactivation at the checkout of shops and stores of electronic resonance labels provided with a bar code and attached to products in a single operation and simultaneously with the determination of the bar-coded data. The deactivator has antennas (8, 9), which are located in a casing (11) fixable externally to the front end of the hand-held bar code reader (1) and which are constructed as ferrite antennas. As a result of the housing of the antennas (8, 9) and preferably all the high frequency-carrying parts (14, 15) of the deactivator in a separate casing (11), the deactivator can be used in combination with any random hand-held bar code reader, without any changes having to be made to the latter.

REFERENCES:
patent: 3031667 (1959-11-01), Wennerberg
patent: 3495264 (1966-12-01), Spears
patent: 5059951 (1991-10-01), Kaltner

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