| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology by which information is compared or is identified without wasting a lot of machine time and network resources. SOLUTION: Weak points of conventional technology are conquered by providing technology for identification of information based on protocol markers. By this technology, a signature is generated from the protocol used for storing, distributing, and transferring multi-dimensional information ('real world' signal which identifies information uniquely and multi-media data etc. ) varying with time. The signature consists of a couple of protocol markers peculiar to the protocol. This system and method can distinguish a plurality of data using the extracted signature. Identification of data is necessary in order to secure uniqueness of information and in order to compare various data in distributed environment. COPYRIGHT: (C)2005,JPO&NCIPI |
