Patent ID: 7340559

Claim:
A memory product controller, which groups a plurality of non-contact type memory products and controls operations of the memory products to realize a predetermined function, comprising: a group registration unit for storing information identifying a memory product in association with information identifying a group; an operating condition storage unit for storing the information identifying a memory product, an operating condition of the memory product, and information indicating to perform either reading or writing on the memory product when the controller determines that the memory product is on the operating condition, in association with the information identifying a group; a reader/writer for a memory product; means for referring to the operating condition storage unit, when reading/writing is performed on one memory product belonging to a predetermined group by the reader/writer, by using the information identifying said one memory product on which reading/writing was performed as key information, and determining whether or not other memory products having the similar operating condition is present in the same group; and means for transmitting instruction information to perform reading or writing on one or a plurality of other memory products belonging to the same group and having the similar operating condition to the reader/writer when said means determines that other memory products having the similar operating condition are present.