A computer implemented method, apparatus, and computer program product for communicating the shelf position of an item within a storage unit. An item to be located in the storage unit is identified. The storage unit system determines the shelf position of the identified item. The system then communicates...http://www.google.com/patents/US7961104?utm_source=gb-gplus-sharePatent US7961104 - Item position indicator and optimized item retrieval for a sensor equipped storage unit
