| 摘要 |
PROBLEM TO BE SOLVED: To efficiently retrieval digital data satisfying a prescribed condition from a plurality of digital data. SOLUTION: This digital data retrieval device is provided with a data storage part 212 storing the digital data by linking with first attribute data and second attribute data expressing conditions creating the respective digital data, a first sorting part 252 sorting the digital data into i sets based on the first attribute data, a second sorting part 253 sorting the digital data into j sets based on the second attribute data, a first selection part 257 receiving an input from the outside and selecting a single set out of the i sets, a second selection part 258 receiving the output from the outside and selecting a single set out of the j sets, an extraction part 259 finding a product sets between the set selected by the first selection part 257 and the set selected from the second selection part 258, and a display control part 260 displaying the digital data included in the product set on the display part. COPYRIGHT: (C)2004,JPO
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