公开(公告)号：US5142377A

公开(公告)日：1992-08-25

申请号：US288825

申请日：1988-12-23

申请人： Yoshiaki Moriyama ,  Toshio Mikami

发明人： Yoshiaki Moriyama ,  Toshio Mikami

IPC分类号： H04N9/79 ,  H04N9/88 ,  H04N9/896

CPC分类号： H04N9/88 ,  H04N9/7904 ,  H04N9/896

摘要： A time base correction apparatus includes a feedback loop for performing time base correction of an input signal by detecting a time base error component of the input signal and a filter having an amplitude characteristic approximating an open loop characteristic of the feedback loop for receiving the time base error component. The input signal whose time base error is corrected by the feedback loop is treated by time base correction by a feed forward operation using an output signal of the filter. With this feature, a time base error which was not removed by the feedback loop is further corrected, and an effective time base correction is performed also for high frequencies.

摘要翻译： 时基校正装置包括用于通过检测输入信号的时基误差分量来执行输入信号的时基校正的反馈回路和具有近似反馈回路的开环特性的幅度特性的滤波器，用于接收时基 错误组件。 通过反馈回路修正时基误差的输入信号，通过使用滤波器的输出信号的前馈运算进行时基校正。 利用该特征，进一步校正未被反馈环路去除的时基误差，并且对于高频也执行有效的时基校正。

公开(公告)号：US4696007A

公开(公告)日：1987-09-22

申请号：US756687

申请日：1985-07-19

申请人： Yoshiaki Moriyama

发明人： Yoshiaki Moriyama

IPC分类号： H03M13/00 ,  G06F11/10 ,  H03M13/29

CPC分类号： H03M13/29

摘要： A method of correcting errors in binary coded words with use of a word block consisting of a plurality of data words and a plurality of error check words and consisting of a plurality of subblocks which can be selectively grouped on the basis of one of three different criteria to form one of three different sets of subblocks, wherein one set of subblocks include error check words to provide one error detection code and the other two sets of subblocks include error check words codes to provide two error correction codes. The detection and correction of errors in the data and error check words in the word block being effected by repetition of a cycle including detection of errors on the basis of the error detection code, correction of errors on the basis of one of the two error correction codes and correction of errors on the basis of the other of the two error correction codes.

摘要翻译： 一种使用由多个数据字和多个错误检查字组成的字块来校正二进制编码字中的错误的方法，并且由多个子块组成，该多个子块可以根据三个不同标准之一来选择性地分组 以形成三个不同组的子块之一，其中一组子块包括提供一个错误检测码的错误校验字，另外两组子块包括错误校验字代码以提供两个纠错码。 通过重复包括基于错误检测码的错误检测的周期来实现字块中的数据和错误检查字中的错误的检测和校正，基于两个错误校正中的一个校正错误 基于两个纠错码中的另一个的代码和错误的校正。

公开(公告)号：US4627058A

公开(公告)日：1986-12-02

申请号：US695067

申请日：1985-01-25

申请人： Yoshiaki Moriyama

发明人： Yoshiaki Moriyama

IPC分类号： H03M13/29 ,  G06F11/10

CPC分类号： H03M13/29

摘要： An improved method of code error correction is disclosed, for detection and correction of errors in data words or check words of a block of data after transmission-reception or recording-reproduction of the data. The method is of the type in which the data block is divided into three sets of sub-blocks, divided along three different array directions, with check words being assigned to each sub-block before transmission or recording based on specific computations (e.g. in accordance with Reed-Solomon code), and is characterized in that a stage of error detection processing applied to one specific set of sub-blocks invariably succeeds each stage of error correction processing applied to the other two sets of sub-blocks and in that three possible states of each error flag can result from correction processing, to respectively indicate a high probability, a low probability, or an intermediate degree of probability of errors being present in the corresponding word.

摘要翻译： 公开了一种改进的代码纠错方法，用于在数据的发送接收或记录再现之后检测和校正数据字中的错误或校验字数据块。 该方法是将数据块划分为沿着三个不同的阵列方向划分的三组子块的类型，其中在根据特定计算（例如按照）进行传输或记录之前，将校验字分配给每个子块 用Reed-Solomon码），并且其特征在于，应用于一个特定的子块集合的错误检测处理的阶段总是成功应用于另外两组子块的每个纠错处理阶段，并且三个可能的 每个错误标志的状态可以由校正处理产生，分别表示在对应的字中存在错误的高概率，低概率或中等程度的概率。

公开(公告)号：US4602295A

公开(公告)日：1986-07-22

申请号：US544910

申请日：1983-10-24

申请人： Yoshiaki Moriyama ,  Toshio Gotoh ,  Hideki Hayashi

发明人： Yoshiaki Moriyama ,  Toshio Gotoh ,  Hideki Hayashi

IPC分类号： G11B20/10 ,  G11B20/18 ,  H04N5/915 ,  H04N5/92 ,  H04N5/91

CPC分类号： G11B20/10527 ,  G11B20/1809 ,  H04N5/9155 ,  H04N5/9201 ,  H04N5/9203

摘要： A method for recording and reproducing video and accompanying audio information whereby various reproduction modes are made possible, including displaying a still image with appropriate sound, without adversely affecting the quality of the played-back signals. A video format signal, containing two-dimensional image information, is divided into a plurality of blocks. Audio information is inserted into predetermined ones of these blocks, and video information is inserted in the remaining blocks. The video format signal is recorded in this form on a magnetic medium. Upon reproduction, the blocks into which the audio information was inserted are, for video reproduction, either masked or replaced with other video information. Control information, including information correlating the audio and video information and, preferably, error correcting code information, is also recorded.

摘要翻译： 一种用于记录和再现视频和伴随的音频信息的方法，从而使各种再现模式成为可能，包括以适当的声音显示静止图像，而不会不利地影响回放信号的质量。 包含二维图像信息的视频格式信号被分成多个块。 将音频信息插入到这些块中的预定的块中，并且将视频信息插入剩余的块中。 视频格式信号以这种形式记录在磁性介质上。 在再现时，插入音频信息的块用于视频再现，被掩蔽或替换为其他视频信息。 还记录包括与音频和视频信息相关的信息以及优选的纠错码信息的控制信息。

公开(公告)号：US07706224B2

公开(公告)日：2010-04-27

申请号：US11723374

申请日：2007-03-19

申请人： Kazuo Kuroda ,  Shoji Taniguchi ,  Yoshiaki Moriyama

发明人： Kazuo Kuroda ,  Shoji Taniguchi ,  Yoshiaki Moriyama

IPC分类号： G11B7/00

CPC分类号： G11B20/00601 ,  G11B7/007 ,  G11B7/24085 ,  G11B20/00086 ,  G11B20/1403 ,  G11B20/22 ,  G11B20/24

摘要： In an information recording medium, positions of pits are modulated in a direction intersecting a direction of reading of pits, so that a predetermined information is recorded. In this information recording medium, the whole of the predetermined information or a part of the predetermined information is randomized through the used of spread spectrum.

摘要翻译： 在信息记录介质中，在与凹坑读取方向相交的方向上调制凹坑的位置，从而记录预定信息。 在该信息记录介质中，通过使用扩展频谱对整个预定信息或预定信息的一部分进行随机化。

公开(公告)号：US20070159941A1

公开(公告)日：2007-07-12

申请号：US11723374

申请日：2007-03-19

申请人： Kazuo Kuroda ,  Shoji Taniguchi ,  Yoshiaki Moriyama

发明人： Kazuo Kuroda ,  Shoji Taniguchi ,  Yoshiaki Moriyama

IPC分类号： G11B19/00

CPC分类号： G11B20/00601 ,  G11B7/007 ,  G11B7/24085 ,  G11B20/00086 ,  G11B20/1403 ,  G11B20/22 ,  G11B20/24

摘要： In an information recording medium, positions of pits are modulated in a direction intersecting a direction of reading of pits, so that a predetermined information is recorded. In this information recording medium, the whole of the predetermined information or a part of the predetermined information is randomized through the used of spread spectrum.

摘要翻译： 在信息记录介质中，在与凹坑读取方向相交的方向上调制凹坑的位置，从而记录预定信息。 在该信息记录介质中，通过使用扩展频谱对整个预定信息或预定信息的一部分进行随机化。

公开(公告)号：US06633723B1

公开(公告)日：2003-10-14

申请号：US09346748

申请日：1999-07-02

申请人： Kazuo Kuroda ,  Toshio Suzuki ,  Yoshiaki Moriyama ,  Kazumi Sugaya

发明人： Kazuo Kuroda ,  Toshio Suzuki ,  Yoshiaki Moriyama ,  Kazumi Sugaya

IPC分类号： H04N591

CPC分类号： G11B20/00746 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00768 ,  G11B20/00884 ,  H04N5/85 ,  H04N5/913 ,  H04N2005/91321 ,  H04N2005/91328 ,  H04N2005/91335 ,  H04N2005/91364

摘要： A system comprising a recording apparatus for recording record information onto a recording medium and a reproducing apparatus for reading the record information from the recording medium and outputting it to reproduce, is provided. The record information includes: image information; a first identification information which represents any one of never copy, one copy and copy free; and a second identification information which represents either the never copy or the one copy. The never copy indicates copying is prohibited. The one copy indicates copying is once permitted. The copy free indicates copying is permitted. The recording apparatus controls recording the record information, and determines whether or not the record information is to be encrypted based upon the first identification information and the second identification information. The reproducing apparatus controls outputting the record information based upon the first identification information and whether the record information has been encrypted or not.

摘要翻译： 提供了一种包括用于将记录信息记录到记录介质上的记录装置和用于从记录介质读取记录信息并将其输出以再现的再现装置的系统。 记录信息包括：图像信息; 第一个识别信息，代表从不复制，一个复制和复制免费的任何一个; 以及表示从不复制或一个副本的第二识别信息。 永不复制表示禁止复制。 一个副本表示一旦被允许复制。 免费的副本表示允许复制。 记录装置控制记录记录信息，并且基于第一识别信息和第二识别信息来确定记录信息是否被加密。 再现装置根据第一识别信息和记录信息是否被加密来控制输出记录信息。

公开(公告)号：US6111990A

公开(公告)日：2000-08-29

申请号：US152294

申请日：1998-09-14

申请人： Kazumi Sugaya ,  Takeshi Nakamura ,  Yoshiaki Moriyama

发明人： Kazumi Sugaya ,  Takeshi Nakamura ,  Yoshiaki Moriyama

IPC分类号： H04N5/91 ,  G06F21/10 ,  G06T1/00 ,  G09C5/00 ,  G11B20/10 ,  H04L9/36 ,  H04N1/387 ,  H04N7/08 ,  H04N7/081 ,  H04N19/124 ,  H04N19/154 ,  H04N19/25 ,  H04N19/46 ,  H04N19/467 ,  H04N19/583 ,  H04N19/60 ,  H04N19/625 ,  H04N19/70 ,  G06K9/36 ,  G06K9/46

CPC分类号： G06T1/0028 ,  H04N19/60 ,  G06T2201/0052

摘要： In a digital-watermark superposing apparatus and a digital-watermark detecting apparatus, a plurality of DCT coefficients for respective frequency components are generated by subjecting video data to a two-dimensional DCT transform for each pixel block consisting of a predetermined number of pixels, and the value of at least one of the DCT coefficients is quantized in accordance with a quantization rule corresponding to the information so as to obtain a quantized DCT coefficient. A two-dimensional inverse DCT transform is performed with respect to the DCT coefficients in which the at least one DCT coefficient thereof is replaced with the quantized DCT coefficient, so as to obtain digital-watermark superposed video data in which the digital watermark corresponding to the information has been superposed on the video data. At this juncture, the digital-watermark superposed video data is selected and outputted concerning a section in which a video pattern due to the video data is not flatter than a predetermined video pattern, while, instead of the digital-watermark superposed video data, the video data is selected and outputted as it is concerning a section in which the video pattern due to the video data is flatter than the predetermined video pattern.

摘要翻译： 在数字水印重叠装置和数字水印检测装置中，通过使视频数据对于由预定数量的像素构成的每个像素块进行二维DCT变换来生成用于各个频率分量的多个DCT系数，以及 根据对应于该信息的量化规则量化DCT系数中的至少一个的值，以获得量化的DCT系数。 对于其中至少一个DCT系数被替换为DCT系数的DCT系数执行二维逆DCT变换，以获得数字水印叠加的视频数据，其中对应于 信息已经叠加在视频数据上。 此时，数字水印叠加视频数据被选择并输出，其中由于视频数据而导致的视频图像不比预定的视频图形更平坦，而代替数字水印叠加的视频数据， 选择和输出视频数据，其中由于视频数据导致的视频图像比预定的视频图形更平坦的部分。

公开(公告)号：US5371751A

公开(公告)日：1994-12-06

申请号：US718467

申请日：1991-06-20

申请人： Yoshiaki Moriyama

发明人： Yoshiaki Moriyama

IPC分类号： G06F11/10 ,  H03M13/00 ,  H03M13/29

CPC分类号： H03M13/1515 ,  H03M13/29 ,  H03M13/2909 ,  H03M13/2918 ,  H03M13/2921 ,  H03M13/293

摘要： A method of correcting triple-coded data, in which data coded in three different directions is subjected to error correction by referring to first, second and third codes, as well as a first flag determined by the first code and a second flag determined by the second code and other conditions, whereby this method demonstrates high error correcting performance with respect particularly to a burst error.

摘要翻译： 一种校正三重编码数据的方法，其中通过参考第一，第二和第三代码对三个不同方向编码的数据进行纠错，以及由第一代码确定的第一标志和由 第二代码和其他条件，由此该方法特别涉及突发错误，表现出高纠错性能。

公开(公告)号：US5151699A

公开(公告)日：1992-09-29

申请号：US855113

申请日：1992-03-18

申请人： Yoshiaki Moriyama

发明人： Yoshiaki Moriyama

IPC分类号： H03M5/14

CPC分类号： H03M5/14 ,  H03M5/145

摘要： A data converting apparatus inserts DC control bits in an input data series to generate a redundant data series. This apparatus determines the value of the DC control bits in such a way as to minimize the DC component of an output code series which is obtained by subjecting the redundant data series to code conversion. The apparatus performs code conversion after inserting the determined DC control bits.

摘要翻译： 数据转换装置将DC控制位插入到输入数据序列中以产生冗余数据序列。 该装置以这样的方式确定DC控制位的值，使得通过对冗余数据序列进行代码转换而获得的输出代码序列的DC分量最小化。 该装置在插入确定的DC控制位之后执行代码转换。