Patent ID: 6536658
Filing Date: 2003-03-25
Classification: G06Q,G07G

Abstract:
A retail terminal comprising:a transceiver for (i) transmitting a pulse train signal, and (ii) receiving a return pulse train signal produced by reflection of the pulse train signal from a consumer; a processing unit electrically coupled to said transceiver; and a memory device electronically coupled to said processing unit, wherein said memory device has stored therein a plurality of instructions which, when executed by said processing unit, causes said processing unit to: (a) transmit said pulse train signal with said transceiver; (b) receive any said return pulse train signal with said transceiver, (c) analyze said return pulse train signal to determine if the consumer producing the return pulse train signal is approaching or leaving the retail terminal, (d) produce a consumer movement signal in response to and consistent with the determination of whether the consumer is approaching or leaving the retail terminal, and (e) change a mode of operation of the retail terminal depending on the consumer movement signal.