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    • 8. 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。
    • 9. 发明申请
    • OPTICAL RECORD CARRIER AND METHOD FOR RECORDING AND REPRODUCING SIGNALS THEREFROM
    • 光记录载体及其记录和再现信号的方法
    • WO1996032716A1
    • 1996-10-17
    • PCT/JP1996000877
    • 1996-04-01
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.KABUSHIKI, Kaisha, Toshiba
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.KABUSHIKI, Kaisha, ToshibaMORIYA, MitsurouTANAKA, Shin-ichiHIRAYAMA, Koichi
    • G11B07/013
    • G11B20/1217G11B7/0045G11B7/005G11B7/00745G11B7/013G11B20/10G11B20/22G11B27/3027
    • An optical record carrier (RC and RC'), and methods and apparatuses for recording and reproducing an information on and from said optical recording carrier (RC and RC'), whereby the effects of crosstalk from adjacent tracks (TR) is reduced, and stable tracing control is possible, is achieved. A recording track (TR) to which information (Sm) divided into sector units (S) is recorded is formed in a spiral or concentric pattern on the surface of the optical record carrier (RC and RC'). Each sector further comprises sixty frames (FRf). Each frame (FR) comprises a re-sync pattern (RS), frame address (FA), data (INF), and postamble (PA) fields. Identification information (SA) indentifying the sector location of the information (INF) is recorded to the data block of the first frame (FR1). The user data (UDf) is recorded after the data (INF) is scrambled using a value (SR) generated by a fifteen-stage maximum-length sequence generator (603) based on the value of this identification information (SA). The correlation between signals on adjacent tracks (TR) is thus reduced, and the effects of crosstalk are randomized, thus reducing the effect on the track error signal and enabling extremely stable tracking control.
    • 一种光学记录载体(RC和RC')以及用于在所述光学记录载体(RC和RC')上记录和再现信息的方法和装置,由此降低来自相邻轨道(TR)的串扰的影响,以及 稳定的跟踪控制是可行的。 在光学记录载体(RC和RC')的表面上以螺旋或同心图案形成记录了划分成扇区单元(S)的信息(Sm))的记录轨道(TR)。 每个扇区进一步包括六十帧(FRf)。 每帧(FR)包括重新同步模式(RS),帧地址(FA),数据(INF)和后同步码(PA)字段。 识别信息(INF)的扇区位置的识别信息(SA)被记录到第一帧(FR1)的数据块。 基于该识别信息(SA)的值,使用由十五级最大长度序列发生器(603)生成的值(SR)对数据(INF)进行加扰后记录用户数据(UDf)。 因此,相邻轨道(TR)上的信号之间的相关性被降低,并且串扰的影响被随机化,从而减少对轨道误差信号的影响并且实现极其稳定的跟踪控制。