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21. 发明申请

US20050225458A1 Recording and reproducing apparatus 有权
标题翻译：记录和再现设备
公开(公告)号：US20050225458A1
公开(公告)日：2005-10-13
申请号：US10982610
申请日：2004-11-05
申请人： Toshio Ito , Masaru Sawada , Toshihiko Morita , Takao Sugawara
发明人： Toshio Ito , Masaru Sawada , Toshihiko Morita , Takao Sugawara
IPC分类号： G11B20/10 , G11B5/09 , G11B20/14 , G11B20/18 , H03M5/14 , H03M7/14 , H03M7/00
CPC分类号： H03M5/145 , G11B20/1426
摘要： A recording and reproducing apparatus includes an RLL encoder that encodes an information bit string to a code bit string and a RLL decoder that decodes the code bit string to the information bit string. The RLL encoder encodes the information bit string to the code bit string of a run-length-limited code at a high encoding rate satisfying a plurality of conditions of constraint regarding a string of successive zeros. The RLL decoder decodes the code bit string encoded by the RLL encoder to the information bit string.
摘要翻译：记录和再现装置包括将信息位串编码为码位串的RLL编码器和将码位串解码为信息位串的RLL解码器。 RLL编码器以满足关于连续零串的多个约束条件的高编码率将信息位串编码为游程长度受限码的码位串。 RLL解码器将由RLL编码器编码的码位串解码为信息位串。

22. 发明授权

US6005984A Process and apparatus for extracting and recognizing figure elements using division into receptive fields, polar transformation, application of one-dimensional filter, and correlation between plurality of images 失效
公开(公告)号：US6005984A
公开(公告)日：1999-12-21
申请号：US987954
申请日：1992-12-11
申请人： Susumu Kawakami , Yusuke Yasukawa , Fumi Hasegawa , Yasushi Inamoto , Toshihiko Morita , Hiroaki Okamoto
发明人： Susumu Kawakami , Yusuke Yasukawa , Fumi Hasegawa , Yasushi Inamoto , Toshihiko Morita , Hiroaki Okamoto
IPC分类号： G06K9/46 , G06K9/36
CPC分类号： G06K9/4647 , G06K9/4619 , G06K9/4633
摘要： An image processing process wherein an image is divided into small areas, a polar transformation is applied to the image in each of the small areas, and image processing is performed based on the result of the polar transformation. Further, each of a plurality of images is divided into small areas, a polar transformation is applied to the image in each of the small areas for each of the plurality of images, and correlation is obtained between the results of the polar transformation for the plurality of images. One-dimensional filter processing is applied to the polar-transformed output.

23. 发明授权

US07793197B2 Error correction apparatus 有权
标题翻译：纠错装置
公开(公告)号：US07793197B2
公开(公告)日：2010-09-07
申请号：US11509282
申请日：2006-08-24
申请人： Toshio Ito , Toshihiko Morita
发明人： Toshio Ito , Toshihiko Morita
IPC分类号： H03M13/00
CPC分类号： G11B20/1833 , H03M13/1515 , H03M13/152 , H03M13/1525 , H03M13/1545
摘要： One set of syndromes is calculated from a first data string from among a plurality thereof including at least 2t+1 pieces of symbols as a parity string, and coefficients of an error locator polynomial from the one set of the syndromes. Whether or not a correction is successful is judged by using the coefficients of the error locator polynomial and the same calculation is performed for a second data string if a correction failure is judged. Contrarily, if a correction success is judged, an error of the first data string is corrected by using the aforementioned set of the syndromes and the coefficients of the error locator polynomial.
摘要翻译：从包括至少2t + 1个符号作为奇偶校验串的多个第一数据串中计算一组综合征，以及来自一组综合征的误差定位多项式的系数。通过使用误差定位多项式的系数来判断校正是否成功，如果判断出校正失败，则对第二数据串执行相同的计算。相反，如果判断校正成功，则通过使用上述的校正子集和误差定位多项式的系数来校正第一数据串的错误。

24. 发明授权

US07590929B2 Record reproduction method, apparatus, and circuit for using error correcting code 有权
标题翻译：使用纠错码的记录再现方法，装置和电路
公开(公告)号：US07590929B2
公开(公告)日：2009-09-15
申请号：US10869585
申请日：2004-06-16
申请人： Toshihiko Morita , Mitsuhiko Ohta , Takao Sugawara
发明人： Toshihiko Morita , Mitsuhiko Ohta , Takao Sugawara
IPC分类号： H03M13/00
CPC分类号： H03M13/6325 , G11B20/1833 , G11B20/1866 , G11B2020/1863 , H03M13/1102 , H03M13/1515 , H03M13/17 , H03M13/3746
摘要： A record reproduction apparatus includes an encoding unit that encodes sector data to be written into a recording medium, by dividing the data into a predetermined number of blocks, and an iterative decoding unit that iteratively decodes the sector data read from the recording medium, by dividing the sector data into the predetermined number of blocks.
摘要翻译：记录重放装置包括编码单元，其通过将数据划分成预定数量的块来编码要写入记录介质的扇区数据，以及迭代解码单元，其对从记录介质读取的扇区数据进行迭代解码，将扇区数据转换成预定数量的块。

25. 发明授权

US07385533B2 Encoder and decoder using run-length-limited code 失效
标题翻译：编码器和解码器使用运行长度限制代码
公开(公告)号：US07385533B2
公开(公告)日：2008-06-10
申请号：US11484003
申请日：2006-07-10
申请人： Masaru Sawada , Toshio Ito , Toshihiko Morita
发明人： Masaru Sawada , Toshio Ito , Toshihiko Morita
IPC分类号： H03M5/00
CPC分类号： H03M5/145
摘要： When a zero run, which violating G constraint of a run-length-limited (RLL) code, is detected from the data stored in a first input register 1111 and a second input register 1112, bits before and after the zero run is transferred to a temporary register 1150 via a bus for zero run removal 1130 to be combined to each other. Thus, by effectively using the mechanism of bus transfer, a circuit can be simplified, thereby realizing a small circuit.
摘要翻译：当从存储在第一输入寄存器1111和第二输入寄存器1112中的数据检测违反游程长度限制（RLL）代码的G约束的零运行时，将零运行之前和之后的位传送到一个临时寄存器1150通过总线进行零运行移除1130以彼此组合。因此，通过有效地利用总线传送的机制，可以简化电路，从而实现小电路。

26. 发明授权

US07237173B2 Recording and reproducing apparatus, signal decoding circuit, error correction method and iterative decoder 有权
标题翻译：记录和再现装置，信号解码电路，纠错方法和迭代解码器
公开(公告)号：US07237173B2
公开(公告)日：2007-06-26
申请号：US10161228
申请日：2002-06-03
申请人： Toshihiko Morita , Yuichi Sato , Takao Sugawara
发明人： Toshihiko Morita , Yuichi Sato , Takao Sugawara
IPC分类号： H03M13/00 , H03M13/03 , H03D1/00
CPC分类号： H03M13/2957 , G11B20/10009 , G11B20/18 , H03M13/373 , H03M13/3905 , H03M13/6343
摘要： A recording and reproducing apparatus having an ECC-less error correction function, includes an erasure detector generating an erasure flag indicating erasure of a read signal; and an iterative decoder having two soft-in/soft-out (SISO) decoders, i.e., an inner decoder and an outer decoder, and correcting the erasure by inputting the erasure flag ek into the inner decoder and performing erasure compensation in the inner decoder. As the erasure compensation in the inner decoder, channel information is masked while the erasure flag is on. The erasure of data due to a media defect is detected inside the iterative decoder, and the second erasure flag is inputted into the inner decoder to perform erasure compensation in the inner decoder.
摘要翻译：具有无ECC纠错功能的记录和再现装置包括产生擦除标志的擦除检测器，擦除标志指示读取信号的擦除; 以及具有两个软入/去输出（SISO）解码器（即，内解码器和外解码器）的迭代解码器，并且通过将擦除标志e k k输入到内解码器来校正擦除并在内部解码器中执行擦除补偿。作为内部解码器的擦除补偿，当擦除标志为开时，通道信息被屏蔽。在迭代解码器内部检测到由于介质缺陷导致的数据擦除，并且第二擦除标志被输入到内部解码器，以在内部解码器中执行擦除补偿。

27. 发明授权

US07138931B2 Recording and reproducing apparatus 有权
标题翻译：记录和再现设备
公开(公告)号：US07138931B2
公开(公告)日：2006-11-21
申请号：US10982610
申请日：2004-11-05
申请人： Toshio Ito , Masaru Sawada , Toshihiko Morita , Takao Sugawara
发明人： Toshio Ito , Masaru Sawada , Toshihiko Morita , Takao Sugawara
IPC分类号： H03M7/00
CPC分类号： H03M5/145 , G11B20/1426
摘要： A recording and reproducing apparatus includes an RLL encoder that encodes an information bit string to a code bit string and a RLL decoder that decodes the code bit string to the information bit string. The RLL encoder encodes the information bit string to the code bit string of a run-length-limited code at a high encoding rate satisfying a plurality of conditions of constraint regarding a string of successive zeros. The RLL decoder decodes the code bit string encoded by the RLL encoder to the information bit string.
摘要翻译：记录和再现装置包括将信息位串编码为码位串的RLL编码器和将码位串解码为信息位串的RLL解码器。 RLL编码器以满足关于连续零串的多个约束条件的高编码率将信息位串编码为游程长度受限码的码位串。 RLL解码器将由RLL编码器编码的码位串解码为信息位串。

28. 发明授权

US07035029B2 Method of and apparatus for recording/reading information, circuit for recording/reading signal 失效
标题翻译：用于记录/读取信息的方法和装置，用于记录/读取信号的电路
公开(公告)号：US07035029B2
公开(公告)日：2006-04-25
申请号：US10776748
申请日：2004-02-11
申请人： Masaru Sawada , Toshihiko Morita , Takao Sugawara
发明人： Masaru Sawada , Toshihiko Morita , Takao Sugawara
IPC分类号： G11B5/09
CPC分类号： G11B20/1025 , G11B5/012 , G11B20/1403 , G11B20/1426 , G11B27/3027 , G11B2220/20
摘要： An information recording/reading apparatus employs a preamble to reproduce a clock used when recording information in a recording medium and reads the information out of the recording medium at a timing synchronized with a read signal. The preamble is split and recorded by replacing a middle portion of the preamble with data and a sync byte. While a first buffer is employed to delay signal data read out of the recording medium, a frequency offset detector detects a frequency offset using the split preamble.
摘要翻译：信息记录/读取装置采用前导码来再现在记录介质中记录信息时使用的时钟，并且以与读取信号同步的定时将信息从记录介质读出。通过用数据和同步字节代替前导码的中间部分来分割和记录前导码。当使用第一缓冲器来延迟从记录介质读出的信号数据时，频率偏移检测器使用分离前导码检测频率偏移。

29. 发明授权

US06298170B1 Image tracking apparatus for tracking an image within a local region to continuously track a moving object 失效
标题翻译：用于跟踪局部区域内的图像以连续跟踪移动物体的图像跟踪装置
公开(公告)号：US06298170B1
公开(公告)日：2001-10-02
申请号：US08783056
申请日：1997-01-14
申请人： Toshihiko Morita , Naoyuki Sawasaki
发明人： Toshihiko Morita , Naoyuki Sawasaki
IPC分类号： G06K15316
CPC分类号： G06T7/20 , G06T7/74
摘要： A local region image tracking apparatus continuously tracks an arbitrary local region within a search image which is described by search image data by comparing the search image data and reference image data related to the arbitrary local region having a size of am pixels by bn pixels with respect to input image data, where the search image has a size larger than am pixels by bn pixels, and a, b, m and n are natural numbers. The local region image tracking apparatus includes correlation computing circuit for computing a correlation between reference image data related to a reference image having a size of m pixels by n pixels and the search image data a plurality of times while moving a position of the reference image with respect to the search image, and for outputting correlation values respectively indicating a computed correlation, and a correlation value accumulating circuit for accumulating the correlation values output from the correlation computing circuit, and for outputting a correlation value indicative of a correlation between the search image data and reference image data related to an equivalent of a reference image having a size of am pixels by bn pixels.
摘要翻译：局部区域图像跟踪装置通过将搜索图像数据和与具有am像素×bn个像素的大小的任意局部区域相关的搜索图像数据和参考图像数据与搜索图像数据所描述的搜索图像内的任意局部区域连续地跟踪相对于以输入图像数据，其中搜索图像的尺寸大于am像素乘以bn像素，并且a，b，m和n是自然数。本地区域图像跟踪装置包括：相关计算电路，用于在将参考图像的位置移动到参考图像的位置的同时，计算与具有m个像素×像素大小的参考图像相关的参考图像数据与多个搜索图像数据之间的相关性; 并且用于输出分别表示计算出的相关性的相关值，以及相关值累积电路，用于累积从相关运算电路输出的相关值，并输出表示搜索图像数据之间的相关性的相关值以及与具有am像素乘以bn像素的尺寸的参考图像的等价物相关的参考图像数据。

30. 发明授权

US5946041A Apparatus and method of tracking an image-feature using a block matching algorithm 失效
标题翻译：使用块匹配算法跟踪图像特征的装置和方法
公开(公告)号：US5946041A
公开(公告)日：1999-08-31
申请号：US685494
申请日：1996-07-24
申请人： Toshihiko Morita
发明人： Toshihiko Morita
IPC分类号： H04N5/225 , G06T7/20 , G08B13/194 , H04N7/18 , H04N11/04 , H04N7/32
CPC分类号： H04N19/54
摘要： An image-feature tracking apparatus for tracking an object includes a feature deriving part for deriving at least one feature in an image of the object, and a matching operation part for matching two frames of the image defined at different times in the image of the object and producing an approximate motion vector of the feature. The apparatus further includes a motion-vector correcting part for correcting the approximate motion vector provided in the matching operation part based on a position of the feature derived in the feature deriving part. In the image-feature tracking apparatus, from a corrected motion vector provided in the motion-vector correcting part, a position of the object is detected.
摘要翻译：用于跟踪对象的图像特征跟踪装置包括用于导出对象的图像中的至少一个特征的特征导出部分和用于匹配在对象的图像中不同时间定义的图像的两个帧的匹配操作部分并产生该特征的近似运动矢量。该装置还包括运动矢量校正部分，用于基于特征导出部分中导出的特征的位置来校正在匹配操作部分中提供的近似运动矢量。在图像特征跟踪装置中，根据运动矢量校正部中提供的校正运动矢量，检测物体的位置。

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