Patent ID: 7528970
Filing Date: 2009-05-05
Classification: G06F

Abstract:
1. A data management system for managing a plurality of pieces of mark data, each piece of mark data associated with a plurality of unique marks to be put on a surface of an object, the data management system comprising: a management unit that manages the plurality of pieces of mark data; a first data storage unit that stores unused pieces of mark data and, if an unused plurality of unique marks is put on the surface of the object, the management unit removes the associated unused piece of mark data from the first data storage unit; a second data storage unit that stores used pieces of mark data and, if a used plurality of unique marks is no longer used, the management unit removes the associated piece of mark data from the second data storage unit and stores the associated piece of mark data in the first storage unit; and a data distribution unit that distributes an unused piece of mark data if a request for mark data is received, wherein the plurality of unique marks comprises a pattern that indicates a physical position on the surface of the object of an item on the surface of the object.