发明名称 Digital rights management
摘要 A method, program, and system for augmenting digital rights management are provided. The invention comprises associating two fields with an electronic document. The first field identifies the current owner of the electronic document, and the second field contains information about previous ownership of the electronic document. If ownership of the electronic document is transferred from the current owner to a subsequent owner, the current owner's name in the first field is replaced with the subsequent owner's name. In addition, information about the subsequent owner is added to the ownership history field.
申请公布号 US7130829(B2) 申请公布日期 2006.10.31
申请号 US20010895095 申请日期 2001.06.29
申请人 INTERNATIONAL BUSINESS MACHINES CORPORATION 发明人 BANERJEE DWIP N.;DUTTA RABINDRANATH;YELLEPEDDY KRISHNA
分类号 G06Q99/00;G06Q30/00;H04K1/00;H04L9/00 主分类号 G06Q99/00
代理机构 代理人
主权项
地址