Patent ID: 8073562

Claim:
An inventory system with positive feedback for at least a first and a second inventory storage location of a plurality of inventory storage locations for storage of items therein in a manner accessible by a human picker's hand in filling an order for one or more item stored in the storage locations, the system comprising: one or more modules disposed adjacent the first and second inventory storage locations and having separate and distinct first and second indicating lights and passive heat detectors, the indicating lights being selectively operable to indicate which of the first and second inventory storage locations the picker's hand should be inserted into and the first and second passive heat detectors being operatively disposed for detecting heat from the picker's hand and indicating which one of the first and second inventory storage locations the picker's hand had entered; and a computer system operatively connected in communication with the indicating lights and heat detectors of the one or more module, the computer system being configured to receive a list of items required for filling the order with an item stored in the one of the first and second storage locations and to activate the indicating light corresponding to either the first and second storage location in which the item is located, and to receive a signal from the detector associated with that storage location when the picker's hand enters that storage location and provide a positive feedback that the picker's hand entered the proper storage location based on the signal received from the heat detector associated with that storage location.