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    • 121. 发明授权
    • Document managing apparatus, data compressing method, and data
decompressing method
    • 文件管理装置,数据压缩方法和数据解压缩方法
    • US5854597A
    • 1998-12-29
    • US787537
    • 1997-01-22
    • Kimitaka MurashitaShigeru YoshidaYoshiyuki Okada
    • Kimitaka MurashitaShigeru YoshidaYoshiyuki Okada
    • H03M7/40G06F17/30H03M7/30
    • G06F17/30011H03M7/30
    • In a document managing apparatus for forming a compressed document file where a keyword retrieval is available, a first process operation and a second process operation are alternately executed. In the first process operation, when document data to be compressed is given, the respective characters are directly written into a compressed document file until an end control character string appears in this document data. In the second process operation, data obtained by coding the respective characters are written into the compressed document file until a start control character series appears in the document data. Also, in this document managing apparatus, a third process operation and a fourth process operation are alternately performed, when the compressed document file is restored. In the third process operation, the respective data (characters) are directly outputted until the end control character string appears in the data contained in the compressed document file. In the fourth process operation, the decoding operation is carried out until the start control character string appears in the restored result of the data contained in the compressed document file.
    • 在用于形成关键字检索可用的压缩文件文件的文件管理装置中,交替执行第一处理操作和第二处理操作。 在第一处理操作中,当给出要压缩的文档数据时,将各个字符直接写入压缩文档文件,直到该文档数据中出现结束控制字符串。 在第二处理操作中,通过对各个字符进行编码而获得的数据被写入到压缩文档文件中,直到起始控制字符系列出现在文档数据中。 此外,在本文档管理装置中,当压缩的文件文件被恢复时,交替执行第三处理操作和第四处理操作。 在第三处理操作中,直接输出各个数据(字符),直到结束控制字符串出现在压缩文档中包含的数据中。 在第四处理操作中,执行解码操作,直到起始控制字符串出现在包含在压缩文档文件中的数据的恢复结果中。