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    • 1. 发明申请
    • DEVICE AND METHOD FOR CONVERTING/DECODING CODE AND RECORDING MEDIUM
    • 用于转换/解码代码和记录介质的设备和方法
    • WO1996032780A1
    • 1996-10-17
    • PCT/JP1996000967
    • 1996-04-09
    • KABUSHIKI KAISHA TOSHIBAMATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    • KABUSHIKI KAISHA TOSHIBAMATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.HIRAYAMA, KoichiISHIZAWA, YoshiyukiTANAKA, ShinichiSHIMADA, Toshiyuki
    • H03M07/14
    • G11B20/1426H03M5/145
    • Source data of m bits are converted into conversion codes of n (n>m) bits and the inversion is also possible. The kinds of 15-bit codes which are the conversion codes of tables A-F and the caracteristic parts of the contents of the codes are as follows: Table A: The number of kinds is 175 and the codes have "00" at their ends. Table B: The number of kinds is 81 and the codes have "0010" at their ends. Table C: The number of kinds is 81 and the codes have "0001" at their ends. Table D: The number of kinds is 34 and the codes have "001001" at their ends. Table E: The number of kinds is 86 and the codes have "00" at their leading edges and ends. Table F: The number of kinds is 39 and the codes have "00" at their leading edges and "0010" at their ends. The currently inputted source data are held in a register R0 and the next inputted source data are held in a register R1. A control unit judges whether or not the run length of the connection between the two sets of source data meets conditions and generates the final conversion codes by selecting a table used.
    • m位的源数据被转换为n(n> m)位的转换码,并且反转也是可能的。 表A-F的转换代码和代码内容的特征部分的15位代码的种类如下:表A:种类数为175,代码的末端为“00”。 表B:种类数为81,码端为“0010”。 表C:种类数为81,码为“0001”。 表D:种类数为34,码端为001001。 表E:种类数为86,代码在前端和末端都有“00”。 表F:种类数为39,代码前端为“00”,其末端为“0010”。 当前输入的源数据保存在寄存器R0中,下一个输入的源数据保持在寄存器R1中。 控制单元判断两组源数据之间的连接的运行长度是否满足条件,并通过选择所使用的表来生成最终的转换代码。