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    • 4. 发明申请
    • Information recording medium and information processing apparatus
    • 信息记录介质和信息处理装置
    • US20070174570A1
    • 2007-07-26
    • US10587882
    • 2005-03-01
    • Noriaki HoriiMasatoshi ShimboYoshihiro Mori
    • Noriaki HoriiMasatoshi ShimboYoshihiro Mori
    • G06F12/14
    • G11B20/1258G11B20/00086G11B20/0021G11B20/00507G11B20/00753G11B20/1251G11B20/1262G11B2020/00057G11B2020/1242G11B2020/1277G11B2220/2562
    • The present invention makes it possible to perform copy control so that the available number of copy times of the data indicating the same contents is invariable irrespective of the type of playback apparatus. An information recording apparatus in the present invention has at least two recording areas. The first recording area includes: first content information; first management information; and first copyright-related information. The second recording area includes: second contents; and second management information including second copyright-related information. The respective first content information and second content information are the same in contents but different in attributes. The second management information includes: link information indicating the relationship between the first content information and the second content information; and a copyright-compliant flag. This copyright-compliant flag indicates whether or not the copyright restriction indicated by the second copyright-related information matches the copyright restriction indicated by the first copyright-related information which are linked to each other.
    • 本发明使得可以执行复制控制,使得指示相同内容的数据的可用复制次数不变,而与重放装置的类型无关。 本发明的信息记录装置具有至少两个记录区域。 第一记录区包括:第一内容信息; 第一管理信息; 和第一版权相关信息。 第二记录区包括:第二内容; 以及包括第二版权相关信息的第二管理信息。 相应的第一内容信息和第二内容信息在内容上相同但属性不同。 第二管理信息包括:指示第一内容信息和第二内容信息之间的关系的链接信息; 和版权合规标志。 该版权保护标志指示由第二版权相关信息指示的版权限制是否与由彼此链接的第一版权相关信息指示的版权限制相匹配。
    • 8. 发明授权
    • Data scrambling method, data scrambling apparatus, data descrambling
method, and data descrambling apparatus
    • 数据加扰方法,数据加扰装置,数据解扰法,数据解扰装置
    • US5978486A
    • 1999-11-02
    • US107484
    • 1998-06-30
    • Ikuoh NishidaMasatoshi Shimbo
    • Ikuoh NishidaMasatoshi Shimbo
    • G11B20/10H04L25/03H04L9/06
    • G11B20/10H04L25/03866
    • A data scrambling method, defined by data polynomial,D(X)=d.sub.n X.sup.n +d.sub.n-1 X.sup.n-1 +d.sub.n-2 X.sup.n-2 + . . . +d.sub.2 X.sup.2 +d.sub.1 X.sup.1 +d.sub.0 X.sup.0generating polynomial,G(X)=1+g.sub.-1 X.sup.-1 +g.sub.-2 X.sup.-2 + . . . +g.sub.-m+2 X.sup.-m+2 +g.sub.-m+1 X.sup.-m+1 +g.sub.-m X.sup.-mresidual polynomial,R(X)=R.sub.-1 X.sup.-1 +R.sub.-2 X.sup.-2 +R.sub.-3 X.sup.-3 + . . . +R.sub.-m+2 X.sup.-m+2 +R.sub.-m+1 X.sup.-m+1 +R.sub.-m X.sup.-mis characterized by:setting initial values R.sub.-m+k (0)=N.sub.-m+k of the respective coefficients R.sub.-m+k (k=0, 1, . . . , m-1) in the residual polynomial (here, R.sub.-m+k(i) is a value obtained, when the coefficient R.sub.-m+k in the residual polynomial is a value of a latch, by shifting the latch by i times) to 0 or 1, using an initial value setting means;outputting ds(1).about.ds(8), in a lump, as ds7.about.ds0, said ds(1).about.ds(8) being successively obtained when the result of the exclusive OR operation for each unit of the repetition is represented, with a byte as a unit, by the following relationship, ##EQU1## whereby data input in binary format are scrambled in byte format. Therefore, input data are scrambled with 8 bits as a unit, and the scrambled data are output in byte format, by 8 bits in parallel.
    • 数据加扰法由数据多项式D(X)= dnXn + dn-1Xn-1 + dn-2Xn-2 +定义。 。 。 + d2X2 + d1X1 + d0X0生成多项式,G(X)= 1 + g-1X-1 + g-2X-2 +。 。 。 + g-m + 2X-m + 2 + g-m + 1X-m + 1 + g-mX-间歇多项式,R(X)= R-1X-1 + R-2X-2 + R-3X-3 +。 。 。 + R-m + 2X-m + 2 + R-m + 1X-m + 1 + R-mX-mis的特征在于:设定各个系数的初始值R-m + k(0)= N-m + 残差多项式(这里,R-m + k(i))中的R-m + k(k = 0,1,...,m-1)是当所获得的系数R-m + 使用初始值设定装置,残差多项式是锁存器的值,通过将锁存器移位i次)为0或1; 将ds(1)DIFFERENCE ds(8)作为ds7差分ds0输出,当表示每个重复单位的异或运算结果时,连续获得ds(1)DIFFERENCE ds(8) 以字节为单位,通过以下关系,由二进制格式输入的数据以字节格式加扰。 因此,输入数据以8位为单位进行加扰,加扰数据以字节格式并行输出8位。
    • 9. 发明授权
    • Code error detecting method
    • 代码错误检测方法
    • US4949342A
    • 1990-08-14
    • US180063
    • 1988-04-11
    • Masatoshi ShimboKatsuhiro Kurosawa
    • Masatoshi ShimboKatsuhiro Kurosawa
    • H03M13/09H03M13/15
    • H03M13/15H03M13/09
    • The code error detecting method uses the code error detecting apparatus which comprises a sector buffer memory for storing various kinds of data, an adder circuit for performing exclusive OR addition of data, a CRC generator/checker for producing error check parities by dividing a result of addition performed in the adder circuit by a predetermined generator polynomial, a temporary memory for storing the error check parities, and an error correction circuit for calculating error correction parities which are used to correct an error of the data. At the time of recording, the data incorporating various parities produced in the code error detecting apparatus is recorded on an optical disk, and, at the time of reproducing, the data reproduced and stored in the sector buffer memory is corrected by using the reproduced error correction parities, and the error check parities are obtained by using the CRC generator/checker. Then, the error check parities thus obtained are compared with the reproduced error check parities stored in the sector buffer memory to thereby detect a code error of the data.
    • 10. 发明授权
    • Sound image localization control system
    • 声像定位控制系统
    • US4219696A
    • 1980-08-26
    • US879503
    • 1978-02-21
    • Takuyo KogureMasatoshi ShimboToshiyuki Goto
    • Takuyo KogureMasatoshi ShimboToshiyuki Goto
    • H04S1/00H04S3/00H04S5/02H04R5/04
    • H04S5/00H04S2400/01H04S3/00
    • A sound reproducing system for reproducing sounds from two loudspeakers located in front of a listener comprises a difference creating network for causing a ratio of sound pressures applied to left and right ears of the listener and causing a time difference between sound waves thereat by a sound radiated from a sound source located at any point around the listener, and a front and back recognizing network provided in common with both ears for cancelling information which causes the listener to feel that said loudspeakers are located in front of the listener and enabling the listener to localize a sound image at any point, whereby the listener can localize the sound image at any point around the listener while he is listening the sounds radiated from the two loudspeakers located in front of him.
    • 用于再现来自位于收听者前方的两个扬声器的声音的声音再现系统包括差分创建网络,用于使得施加到收听者的左耳和右耳的声压的比率并且由声辐射产生声波之间的时间差 来自位于收听者周围任何一个点处的声源,以及与两只耳朵共同提供的前后识别网络,用于取消使听众感觉到所述扬声器位于收听者之前的信息,并使听众能够本地化 在任何时候,听众可以在收听者周围的任何点处本地化声音图像,同时他正在收听从位于他前面的两个扬声器辐射的声音。