A customer interface device for interfacing with a customer at a store may include a touch screen for displaying information and receiving customer instructions, a keypad, a wireless sensor for scanning tags attached to merchandise of the store, and at least one user input component to accept customer...http://www.google.fr/patents/US8091780?utm_source=gb-gplus-shareBrevet US8091780 - System, method, and apparatus of a customer interface device
System, method, and apparatus of a customer interface device
