发明名称 |
SYSTEM, METHODS AND DEVICES FOR ACCESSING OR SHARING A DIGITAL DOCUMENT IN A PEER-TO-PEER COMMUNICATION NETWORK |
摘要 |
<p>A digital document system in which a digital document in a communication network is shared between a plurality of stations, said system comprising: a first station (101A) having a first digital document (DD1) comprising a thumbnail data item (TH1) and an original data item (HR1); a second station (102A) having a second digital document (DD2) comprising a thumbnail data item (TH2); and a center station (100A) comprising: calculating means for calculating signatures of the thumbnail data items (TH1, TH2) of the first and second digital documents (DD1, DD2); comparing means for comparing the calculated signatures of the thumbnail data items (TH1, TH2); and transmitting means for transmitting information for accessing the original data item (HR1) of the first digital document (DD1) to the second station (102A) according to a result of the comparison.</p> |
申请公布号 |
EP1683326(B1) |
申请公布日期 |
2008.07.16 |
申请号 |
EP20040798986 |
申请日期 |
2004.11.10 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
LABELLE, LILIAN;NASSOR, ERIC |
分类号 |
H04L29/08;G06F17/30;H04L29/06;H04N7/24 |
主分类号 |
H04L29/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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