专利名称：EXTENSIBLE FILE FORMAT
发明人：EVERSOLE, Adam, Clyde,ROSS, Benjamen, Eric申请号：EP02778594.8申请日：20021017公开号：EP1436769A2公开日：20040714
摘要：The present invention can provide an extensible file format compatible withprevious, current, and future versions of an application program (37A). The presentinvention can comprise including file version watermarks in an original data file (550) of anapplication program. The file version watermarks can indicate various properties of theoriginal data file. The file version watermarks can include a high version watermark, a lastversion watermark, a low version watermark, a creation version watermark, and an object(100) version watermark. Each file version watermark (540) can indicate changes,additions, or deletions made to the file. The present invention can use the file versionwatermarks to determine whether the file, or particular information in the file,corresponds to the previous, active, or future versions of an application program.Accordingly, the present invention can then load or save the original data file based on aresult of the determination.
申请人：MICROSOFT CORPORATION
地址：One Microsoft Way Redmond, WA 98052 US
国籍：US
代理机构：Grünecker, Kinkeldey, Stockmair & SchwanhäusserAnwaltssozietät
更多信息请下载全文后查看
因篇幅问题不能全部显示，请点此查看更多更全内容