| 摘要 |
PROBLEM TO BE SOLVED: To provide the control system of the use and distribution of a composite digital work. SOLUTION: File information to the digital work is divided into a content file and a description tree file and the content file is the flow of an addressible byte depending on an interpreter for reproducing, displaying or printing the digital work. A description block 700 provided with a non-circulation structure for examining a using right and a charge to the work is provided with a peculiar identifier 701 to the work of a repository, the start address 702 of the first byte of the work, a length 703 for imparting a byte number inside the work, a right part 704 provided with the permitted using right and the state data, a master pointer 705 for indicating a master description block and a slave pointer 706 for indicating a slave description block. |
