Patent ID: 7336152
Filing Date: 2008-02-26
Classification: G06K,G06Q

Abstract:
1. A method of tracking items in a cluster of items having a first subset of items and a second subset of items mutually exclusive from the first subset of items, the method comprising: receiving a signal from a tag from a first plurality of tags without receiving a signal from a tag from a second plurality of tags and without receiving a signal from a container tag associated with more than one item in the cluster of items, each tag from the first plurality of tags being uniquely associated with an item in the first subset of items, each tag from the second plurality of tags being uniquely associated with an item in the second subset of items, the signal from the tag from the first plurality of tags being indicative of an identifier associated with a first item in the first subset of items, the identifier associated with the first item in the first subset of items being different from an identifier associated with a first item in the second subset of items; obtaining an item record associated with the first item in the first subset of items based on the identifier associated with the first item in the first subset of items; and obtaining an item record associated with the first item in the second subset of items based on a database linking between the item record associated with the first item in the first subset of items and the item record associated with the first item in the second subset of items.