公开(公告)号：US4586027A

公开(公告)日：1986-04-29

申请号：US638424

申请日：1984-08-07

申请人： Tokuhiro Tsukiyama ,  Yoshie Kondo ,  Katsuharu Kakuse ,  Shinpei Saba ,  Syoji Ozaki ,  Kunihiro Itoh

发明人： Tokuhiro Tsukiyama ,  Yoshie Kondo ,  Katsuharu Kakuse ,  Shinpei Saba ,  Syoji Ozaki ,  Kunihiro Itoh

IPC分类号： G06F3/06 ,  G11B20/00 ,  G11B20/10 ,  G11B20/12 ,  H03M7/48 ,  G06F5/00

CPC分类号： H03M7/48 ,  G11B20/00007

摘要： Method of data compression and restoration wherein an input data string including repetitive data more in number than the specified value is transformed into a data string having a format including the first region where non-compressed data are placed, the second region including a datum representative of a data string section which has undergone the compression process and information indicative of the number of repetitive data, i.e., the length of the data string section, and control information inserted at the front and back of the first region indicative of the number of data included in the first region, said transformed data string being recorded on the recording medium, and, for data reproduction, the first and second regions are identified on the basis of the control information read out on the recording medium so that the compressed data string section is transformed back to the original data string in the form of repetitive data.

摘要翻译： 数据压缩和恢复方法，其中包括数量大于指定值的重复数据的输入数据串被转换成具有格式的数据串，该格式包括放置非压缩数据的第一区域，第二区域包括代表 经历了压缩处理的数据串部分和指示重复数据的数量的信息，即数据串部分的长度，以及插入在第一区域的前后的控制信息，指示包括的数据的数量 在第一区域中，所述变换数据串被记录在记录介质上，并且为了数据再现，基于在记录介质上读出的控制信息来识别第一和第二区域，使得压缩数据串段是 以重复数据的形式转换回原始数据串。