| 摘要 |
PROBLEM TO BE SOLVED: To accurately, simply and quickly edit new publishing information(PI) correspondingly to the secular change of PI by previously storing history data, changing the PI and history data in accordance with the secular change of the PI and extracting the PI by referring to the history data. SOLUTION: Reference data for identifying each PI and history data including a point of time newly registering the PI, a point of time updating the contents of the registered PI and a point of time deleting the PI are previously stored in a storage means for each PI and these data are changed in accordance with the secular change of the PI. Then PI to be published is retrieved by referring to the reference data and history data corresponding to the retrieved PI are referred to. Then PI having history changed after the preceding segmentation time is extracted while determining edition processing. For instance, a patent information edition file 40 storing, a patent data base 10 and preceding edition contents related to patent information is included in the storage means. |
