Display system for shopping cart
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United States of America Patent
Stats
-
Oct 27, 1992
Issued Date -
N/A
app pub date -
Jul 11, 1990
filing date -
Jul 26, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A display system (299) includes a visual display unit (300) mounted on a shopping cart (12d). In one preferred embodiment, a low-intensity ultrasonic signal is emitted by a transmitter (308) positioned at a desired location within a store for reception by a transducer (306) mounted on the shopping cart. The signal from the transducer (306) is transmitted to a switching circuit (316) to activate visual indicators in the form of directional lights (320, 322) thereby to direct the shoppers attention to a particular item located adjacent the transmitter (308).
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Cited Art Landscape
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