公开(公告)号：US6014094A

公开(公告)日：2000-01-11

申请号：US7848

申请日：1998-01-15

申请人： Takumi Hayashiyama ,  Kazunari Matsui ,  Takaro Mori

发明人： Takumi Hayashiyama ,  Kazunari Matsui ,  Takaro Mori

IPC分类号： G11B20/14 ,  H03M5/14 ,  H03M7/14 ,  H03M5/00 ,  H03M7/00

CPC分类号： H03M5/145 ,  G11B20/1426

摘要： A DSV (Digital Sum Value) control system for use in conversion of a sequence of m-bit digital data codes into at least first and second sequences of n-bit digital modulation codes using a plurality of modulation tables under the DVD (Digital Video Disc) standards, for example. The DSV control system outputs a sequence of modulation codes produced by selecting, in time sequence, one of the codes of the first sequence or one of the codes of the second sequence according to a select signal SB. The select signal SB is provided based on a DSV control enable flag indicating that DSV control enable codes of the first and second sequences will appear at a following address and a select signal SA indicating which of the DSV control enable codes of the first and second sequences should be selected in order to optimize a DSV of the outputted sequence of modulation codes.

摘要翻译： 一种DSV（数字和值）控制系统，用于使用DVD下的多个调制表（数字视频盘）将m位数字数据序列的序列转换成至少第一和第二序列的n位数字调制码 ）标准。 DSV控制系统输出通过根据选择信号SB按时间顺序选择第一序列的代码或第二序列的代码之一而产生的调制码序列。 选择信号SB是基于指示第一和第二序列的DSV控制使能码将出现在跟随地址的DSV控制使能标志提供的，以及选择信号SA，其指示第一和第二序列的DSV控制使能码中的哪一个 应该选择以优化输出的调制码序列的DSV。

公开(公告)号：US5638064A

公开(公告)日：1997-06-10

申请号：US500274

申请日：1995-07-10

申请人： Takaro Mori ,  Kazunari Matsui ,  Takumi Hayashiyama

发明人： Takaro Mori ,  Kazunari Matsui ,  Takumi Hayashiyama

IPC分类号： G11B20/14 ,  H03M5/14 ,  H04L25/49 ,  H03M7/00

CPC分类号： H04L25/4915 ,  H03M5/145 ,  G11B20/1426

摘要： Digital modulating method and apparatus are provided which converts m-bit data codes, in sequence, into digital modulation codes each consisting of n channel bits (n>m) to form a modulation code sequence using connection codes. Bit patterns of portions of the modulation code sequence and the connection codes are changed or additional bit patterns are inserted into the modulation code sequence so as to meet given conditions of a minimum transition interval, a maximum transition interval, and a Digital Sum Value. Demodulating method and apparatus performing a reverse modulation operation are also described.

摘要翻译： 提供了数字调制方法和装置，其将m位数据代码依次转换为每个由n个通道位（n> m）组成的数字调制代码，以使用连接代码形成调制码序列。 改变调制码序列和连接码的部分的位模式，或者将附加位模式插入到调制码序列中，以满足最小转换间隔，最大转换间隔和数字和值的给定条件。 还描述了执行逆调制操作的解调方法和装置。

公开(公告)号：US06763072B1

公开(公告)日：2004-07-13

申请号：US09634856

申请日：2000-08-08

申请人： Kazunari Matsui ,  Katsumi Takaoka ,  Takaaki Saiki ,  Keiichi Kaneko

发明人： Kazunari Matsui ,  Katsumi Takaoka ,  Takaaki Saiki ,  Keiichi Kaneko

IPC分类号： H04L2728

CPC分类号： H04L27/2627 ,  H04L27/2649

摘要： Data pieces representative of in-phase components and quadrature components of a digital-modulation-resultant signal are assigned to frequencies for inverse fast Fourier transform. The inverse fast Fourier transform is executed at a predetermined sampling frequency Fs to convert the data pieces into a real-part signal and an imaginary-part signal. Phases of the real-part signal and the imaginary-part signal are shifted. Each of the phase-shifted real-part signal and the phase-shifted imaginary-part signal is divided into a sequence of even-numbered samples and a sequence of odd-numbered samples. A digital quadrature-modulation-resultant signal is generated from further manipulation of the even-numbered and odd-numbered samples.

摘要翻译： 表示数字调制结果信号的同相分量和正交分量的数据段被分配给用于快速傅里叶逆变换的频率。 以预定的采样频率Fs执行逆快速傅里叶变换，以将数据段转换成实部信号和虚部信号。 实部信号和虚部信号的相位偏移。 相移的实部信号和相移的虚部信号中的每一个被分成偶数样本的序列和奇数样本的序列。 从偶数和奇数样本的进一步操纵产生数字正交调制结果信号。

公开(公告)号：US06862321B2

公开(公告)日：2005-03-01

申请号：US09804396

申请日：2001-03-13

申请人： Keiichi Kaneko ,  Kazunari Matsui

发明人： Keiichi Kaneko ,  Kazunari Matsui

IPC分类号： H04L27/18 ,  H04J11/00 ,  H04L27/26 ,  H04L27/34 ,  H04L25/49 ,  H04K1/10 ,  H04L27/28

CPC分类号： H04L27/2627

摘要： Non-compensation signal points are determined in a two-dimensional plane without considering a signal error caused by digital quadrature modulation. The two-dimensional plane is defined by a real axis and an imaginary axis. The real axis corresponds to real-part signal components. The imaginary axis corresponds to imaginary-part signal components. Compensation signal points are determined in the two-dimensional plane in response to a signal error caused by digital quadrature modulation if the non-compensation signal points are used. The non-compensation signal points and the compensation signal points are point-symmetry. Digital information signal pieces are sequentially assigned to one of the compensation signal points in response to contents of the digital information signal pieces. The digital information pieces are subjected to a modulation process including digital quadrature modulation in response to the above-mentioned assignment to generate a radio-frequency transmission signal.

摘要翻译： 在不考虑由数字正交调制引起的信号误差的情况下，在二维平面中确定非补偿信号点。 二维平面由实轴和虚轴定义。 实轴对应于实部信号分量。 虚轴对应于虚部信号分量。 如果使用非补偿信号点，则响应于由数字正交调制引起的信号误差，在二维平面中确定补偿信号点。 非补偿信号点和补偿信号点是点对称的。 响应于数字信息信号片段的内容，数字信息信号片依次分配给补偿信号点之一。 对数字信息片进行响应于上述分配的数字正交调制的调制处理，生成射频发送信号。

公开(公告)号：US5949750A

公开(公告)日：1999-09-07

申请号：US112374

申请日：1998-07-09

申请人： Kazunari Matsui

发明人： Kazunari Matsui

IPC分类号： G11B7/00 ,  G11B7/013 ,  G11B7/09 ,  G11B20/10 ,  G11B20/22 ,  H03M13/15 ,  G11B5/09

CPC分类号： G11B20/0021 ,  G11B20/00507 ,  G11B20/10 ,  G11B20/22 ,  H03M13/15 ,  G11B7/013 ,  G11B7/0901

摘要： When information signals are recorded on an information signal recording medium formed with circular information signal tracks, the information signals are recorded after being scrambled with scrambling signals of cyclic codes. The period at which the scrambling signal makes a round is determined longer than a time length of an information signal quantity recorded on the maximum recording capacity (e.g., the outermost tracks), or a part of the scrambling signals are used repeatedly. The information signal recording method can remove the correlation between the adjacent tracks, and thereby enable a stable tracking control.

摘要翻译： 当信息信号被记录在形成有圆形信息信号轨道的信息信号记录介质上时，在用循环码的加扰信号加扰之后，记录信息信号。 确定加扰信号进行回合的周期被确定为比记录在最大记录容量（例如，最外面的轨道）的信息信号量的时间长度或重复使用部分加扰信号的时间长。 信息信号记录方法可以消除相邻轨道之间的相关性，从而实现稳定的跟踪控制。

公开(公告)号：US5862115A

公开(公告)日：1999-01-19

申请号：US57587

申请日：1998-04-09

申请人： Kazunari Matsui

发明人： Kazunari Matsui

IPC分类号： G11B7/00 ,  G11B7/0045 ,  G11B7/007 ,  G11B7/013 ,  G11B7/09 ,  G11B20/10 ,  G11B20/22 ,  H03M13/15 ,  G11B5/09

CPC分类号： G11B20/0021 ,  G11B20/00507 ,  G11B20/10 ,  G11B20/22 ,  G11B7/0045 ,  G11B7/013 ,  H03M13/15 ,  G11B7/0901

摘要： When information signals are recorded on an information signal recording medium formed with circular information signal tracks, the information signals are recorded after being scrambled with scrambling signals of cyclic codes. The period at which the scrambling signal makes a round is determined longer than a time length of an information signal quantity recorded on the maximum recording capacity (e.g., the outermost tracks), or a part of the scrambling signals are used repeatedly. The information signal recording method can remove the correlation between the adjacent tracks, and thereby enable a stable tracking control.

公开(公告)号：US06529472B1

公开(公告)日：2003-03-04

申请号：US09370889

申请日：1999-08-10

申请人： Keiichi Kaneko ,  Katsumi Takaoka ,  Kazunari Matsui ,  Takaaki Saiki

发明人： Keiichi Kaneko ,  Katsumi Takaoka ,  Kazunari Matsui ,  Takaaki Saiki

IPC分类号： H04J1100

CPC分类号： H04L27/2628 ,  H04L27/2602 ,  H04L27/265

摘要： A first orthogonal-multi-carrier signal is generated through N-point inverse discrete Fourier transform. The first orthogonal-multi-carrier signal has “N” or less orthogonal multiple carriers, where “N” denotes a predetermined natural number equal to or greater than 2. Every 1-unit time segment of the first orthogonal-multi-carrier signal is repeated “M” times to generate every 1-symbol time segment of a second orthogonal-multi-carrier signal. The second orthogonal-multi-carrier signal has a thinned set of “N” or less orthogonal multiple carriers spaced at M-carrier intervals, where “M” denotes a predetermined natural number equal to or greater than 2.

摘要翻译： 通过N点离散傅立叶逆变换产生第一正交多载波信号。 第一正交多载波信号具有“N”个或更少的正交多载波，其中“N”表示等于或大于2的预定自然数。第一正交多载波信号的每1个单位时间段是 重复“M”次以产生第二正交多载波信号的每1个符号时间段。 第二正交多载波信号具有以M载波间隔隔开的“N”个或更少的正交多载波的稀疏集合，其中“M”表示等于或大于2的预定自然数。

公开(公告)号：US06181391B2

公开(公告)日：2001-01-30

申请号：US09208309

申请日：1998-12-11

申请人： Masaya Okita ,  Yasuo Aritake ,  Kohei Matsuyama ,  Masaya Kimura ,  Kazunari Matsui

发明人： Masaya Okita ,  Yasuo Aritake ,  Kohei Matsuyama ,  Masaya Kimura ,  Kazunari Matsui

IPC分类号： G02F11335

CPC分类号： G02F1/133621 ,  G09G3/3406 ,  G09G2310/0235

摘要： A color display device has a single light guiding plate, and first, second and third light sources that respectively independently exhibit three primary colors. On a one end surface of the light guiding plate there are disposed the first and second light sources that exhibit two different ones of the three primary colors. On the other end surface side of the light guiding plate there is disposed the third light source that exhibits the remaining one primary color. Since the light guiding means is needed only one in number, the structure can be simplified and miniaturized. Also, on the one end surface of the light guiding means there are disposed, of the three light sources exhibiting the three primary colors, the first and second light sources that exhibit two different ones of the three primary colors. And, on the other end surface side of the light guiding means there is disposed the third light source that exhibits the remaining one primary color. Therefore, the probability that the light which enters into the light guiding means from one light source is hindered by another light source decreases. Accordingly, the loss of the light becomes lessened and the amount of light emission increases.

摘要翻译： 彩色显示装置具有单个导光板，以及分别独立地呈现三原色的第一，第二和第三光源。 在导光板的一个端面上设置有呈现三种基色中的两种不同颜色的第一和第二光源。 在导光板的另一端表面侧设置显示剩余一种原色的第三光源。 由于导光装置仅需要一个导光装置，所以可以简化和小型化结构。 此外，在导光装置的一个端面上，布置呈现三原色的三个光源，第一和第二光源呈现三种基色中的两种。 并且，在导光装置的另一端表面侧设置显示剩余一种原色的第三光源。 因此，由一个光源进入导光装置的光被另一个光源阻碍的可能性降低。 因此，光的损失减少，发光量增加。

公开(公告)号：US6126297A

公开(公告)日：2000-10-03

申请号：US86932

申请日：1998-05-29

申请人： Kazunari Matsui ,  Yasuo Aritake

发明人： Kazunari Matsui ,  Yasuo Aritake

IPC分类号： G02F1/1335 ,  F21S8/00 ,  F21V9/40 ,  G02F1/13357 ,  G09F9/00 ,  G09F13/04 ,  G09F13/14 ,  F21V9/00

CPC分类号： F21V9/10 ,  G02F1/133604 ,  G02F1/133609

摘要： A color light emitting device comprises a casing, six tubular light sources within the casing, and a reflecting surface. The casing has a bottom surface portion and a side surface portion extending from a peripheral edge of the bottom surface portion. The reflecting surface is provided on each of the bottom surface portion and the side surface portion. The six light sources are arrayed substantially in parallel with the bottom surface in the order of red, green, blue, red, green and blue. The outer-peripheral surface of the red color light source at one end faces the side surface portion. The reflecting surface has a colored portion that is in the proximity of the red color light source at one end. The colored portion is colored to have a blue color which is not a green color disposed near the red color light source at one end, of the green color and blue color. As a result, in the proximity of the red color light source at one end, the amount of red color light decreases and the amount of blue color light increases. For this reason, the luminance balance in the proximity of the side surface portion at one end becomes uniform as at the central part, whereby color unevenness is suppressed.

摘要翻译： 彩色发光装置包括壳体，壳体内的六个管状光源和反射表面。 壳体具有底表面部分和从底表面部分的周边边缘延伸的侧表面部分。 反射面设置在每个底面部分和侧面部分上。 六个光源以红色，绿色，蓝色，红色，绿色和蓝色的顺序与底表面基本上平行排列。 红色光源的一端的外周面与侧面部相对。 反射面具有在一端处于红色光源附近的着色部分。 着色部分被着色为具有绿色和蓝色的一端处的红色光源附近设置的不是绿色的蓝色。 结果，在红色光源的一端附近，红色光的量减少，蓝色光的量增加。 因此，与中心部一样，在一侧的侧面部附近的亮度平衡变得均匀，从而抑制了颜色不均匀。

公开(公告)号：US5771215A

公开(公告)日：1998-06-23

申请号：US788248

申请日：1997-01-27

申请人： Kazunari Matsui

发明人： Kazunari Matsui

IPC分类号： G11B7/00 ,  G11B7/0045 ,  G11B7/007 ,  G11B7/013 ,  G11B7/09 ,  G11B20/10 ,  G11B20/22 ,  H03M13/15 ,  G11B5/09

CPC分类号： G11B20/0021 ,  G11B20/00507 ,  G11B20/10 ,  G11B20/22 ,  G11B7/0045 ,  G11B7/013 ,  H03M13/15 ,  G11B7/0901

摘要： When information signals are recorded on an information signal recording medium formed with circular information signal tracks, the information signals are recorded after being scrambled with scrambling signals of cyclic codes. The period at which the scrambling signal makes a round is determined longer than a time length of an information signal quantity recorded on the maximum recording capacity (e.g., the outermost tracks), or a part of the scrambling signals are used repeatedly. The information signal recording method can remove the correlation between the adjacent tracks, and thereby enable a stable tracking control.