×

Cart return loyalty credit system

  • US 6,486,768 B1
  • Filed: 09/16/1998
  • Issued: 11/26/2002
  • Est. Priority Date: 09/16/1998
  • Status: Expired due to Term
First Claim
Patent Images

1. A cart return system for use by a store utilizing a computer, the system comprising:

  • a detection loop arranged at the entrance to a cart return location;

    a loop oscillator circuit connected to the detection loop, wherein a frequency is influenced by moving a cart proximate to the detection loop; and

    a processing circuit, connected to the loop oscillator circuit, being capable of detecting a change in inductance of the loop and identifying a cart return condition in response to the loop oscillator circuit, wherein the processing circuit is adapted to provide a customer identification code to the computer, wherein the customer identification code is unique to each customer and which is input to the system by the customer.

View all claims
  • 5 Assignments
Timeline View
Assignment View
    ×
    ×