Patent ID: 6363456
Filing Date: 2002-03-26
Classification: G06Q,G07F

Abstract:
An IC card having an IC chip, comprising:communication means for receiving externally transmitted data; storage means for storing a file and definition information of the file; delete means for, when the data received through said communication means is a command to delete a predetermined file, deleting the predetermined file and definition information of the predetermined file from said storage means; a first location means for, when the definition information is to be stored in said storage means, sequentially locating the definition information from one end of a storage area of said storage means, and, when the file is to be stored in said storage means, sequentially locating the file from the other end of the storage area; and a second location means for sequentially relocating the remaining definition information from one end of the storage area to fill an available area generated upon deletion of the definition information by said delete means, and sequentially relocating the remaining file from the other end of the storage area to fill an available area generated upon deletion of the file by said delete means.