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1. 发明申请

US20080040651A1 Encoding apparatus, decoding apparatus, encoding method, decoding method, and storage device 失效
标题翻译：编码装置，解码装置，编码方法，解码方法和存储装置
公开(公告)号：US20080040651A1
公开(公告)日：2008-02-14
申请号：US11891043
申请日：2007-08-08
申请人： Toshikazu Kanaoka , Toshio Ito
发明人： Toshikazu Kanaoka , Toshio Ito
IPC分类号： H03M13/03
CPC分类号： H03M13/1102 , H03M13/2957 , H03M13/2975 , H03M13/6343
摘要： An ECC decoder outputs, to a likelihood substituting unit, information on data in data blocks that is corrected to be valid. Based on the information, the likelihood substituting unit substitutes likelihood corresponding to the data corrected to be valid by the maximum value, and outputs it to an LDPC decoder. The LDPC decoder decodes user data with likelihoods partly substituted by the maximum value using LDPC parity, and calculates likelihood of data that constitutes the user data. The LDPC decoder outputs the calculated likelihood to a channel APP decoder as external data.
摘要翻译： ECC解码器向可能性替换单元输出关于修正为有效的数据块中的数据的信息。基于该信息，可能性替换单元将对应于经校正的数据的似然率替换为最大值的有效值，并将其输出到LDPC解码器。 LDPC解码器使用LDPC奇偶校验以部分被最大值替代的可能性解码用户数据，并计算构成用户数据的数据的可能性。 LDPC解码器将计算出的似然值输出到通道APP解码器作为外部数据。

2. 发明申请

US20070205922A1 MTR encoding method, MTR decoding method, MTR encoder, MTR decoder, and magnetic recording device 失效
标题翻译： MTR编码方法，MTR解码方法，MTR编码器，MTR解码器和磁记录装置
公开(公告)号：US20070205922A1
公开(公告)日：2007-09-06
申请号：US11484933
申请日：2006-07-12
申请人： Akihiro Itakura , Toshikazu Kanaoka , Toshio Ito
发明人： Akihiro Itakura , Toshikazu Kanaoka , Toshio Ito
IPC分类号： H03M7/00
CPC分类号： H03M5/145
摘要： An MTR encoder includes convolution units that perform convolution of input data using additional bits, MTR encoding units that MTR-encode data obtained by the convolution units, RDS calculating units and on-bit sequence checking units that calculate RDSs and counts the number of sequential on-bits of the data MTR-encoded by the MTR encoding units, respectively, and a selecting unit that selects optimum data based on the RDSs and the number of sequential on-bits.
摘要翻译： MTR编码器包括使用附加位执行输入数据的卷积的卷积单元，对由卷积单元获得的数据进行MTR编码的MTR编码单元，RDS计算单元和计算RDS的计数单元，并对序列数进行计数分别由MTR编码单元MTR编码的数据的一行和选择单元，其基于RDS和顺序导通位数选择最佳数据。

3. 发明申请

US20090199073A1 ENCODING DEVICE, DECODING DEVICE, ENCODING/DECODING DEVICE, AND RECORDING/REPRODUCING DEVICE 失效
标题翻译：编码设备，解码设备，编码/解码设备以及记录/再现设备
公开(公告)号：US20090199073A1
公开(公告)日：2009-08-06
申请号：US12276958
申请日：2008-11-24
申请人： Toshikazu Kanaoka , Toshio Ito
发明人： Toshikazu Kanaoka , Toshio Ito
IPC分类号： H03M13/27 , G06F11/10
CPC分类号： H03M13/2927 , G11B20/1833 , G11B20/1866 , G11B2020/1836 , G11B2020/1843 , G11B2020/185 , G11B2220/2516 , G11B2220/2537 , H03M13/098 , H03M13/1102 , H03M13/1515 , H03M13/271 , H03M13/2721 , H03M13/2778 , H03M13/2906 , H03M13/2918 , H03M13/2921 , H03M13/293 , H03M13/2957
摘要： An error correction device error corrects without increasing in circuit scale. An encoder, includes: a first ECC encoder which interleaves a data string into n (n≧2) blocks of data strings at every m (m≧2) bits, and adds the error correction code parity; a parity encoder which creates a parity bit at every plurality of bits of the error correction code word, and adds the parity bit to said error correction code word; and a second ECC encoder, which generates a second error correction encoding, which is a linear encoding using iterative decoding. Concatenated type encoded data, where a parity bit is added to every plurality of bits, is created, so an increase of circuit scale can be prevented even if a data string is interleaved into a plurality of blocks and error correction code parity is generated.
摘要翻译：错误纠正装置的错误在电路规模上没有增加。一种编码器，包括：第一ECC编码器，每m（m> = 2）个比特将数据串交织成n（n> = 2）个数据串，并将纠错码奇偶校验相加; 奇偶校验编码器，其在所述纠错码字的每多个位产生奇偶校验位，并将所述奇偶校验位加到所述纠错码字; 以及第二ECC编码器，其生成使用迭代解码的线性编码的第二纠错编码。创建了对每个多个比特添加奇偶校验位的级联型编码数据，因此即使将数据串交错为多个块并产生纠错码奇偶校验，也可以防止电路规模的增加。

4. 发明授权

US08151162B2 Encoding device, decoding device, encoding/decoding device, and recording/reproducing device 失效
标题翻译：编码装置，解码装置，编码/解码装置和记录/再现装置
公开(公告)号：US08151162B2
公开(公告)日：2012-04-03
申请号：US12276958
申请日：2008-11-24
申请人： Toshikazu Kanaoka , Toshio Ito
发明人： Toshikazu Kanaoka , Toshio Ito
IPC分类号： H03M13/00
CPC分类号： H03M13/2927 , G11B20/1833 , G11B20/1866 , G11B2020/1836 , G11B2020/1843 , G11B2020/185 , G11B2220/2516 , G11B2220/2537 , H03M13/098 , H03M13/1102 , H03M13/1515 , H03M13/271 , H03M13/2721 , H03M13/2778 , H03M13/2906 , H03M13/2918 , H03M13/2921 , H03M13/293 , H03M13/2957
摘要： An error correction device error corrects without increasing in circuit scale. An encoder, includes: a first ECC encoder which interleaves a data string into n (n≧2) blocks of data strings at every m (m≧2) bits, and adds the error correction code parity; a parity encoder which creates a parity bit at every plurality of bits of the error correction code word, and adds the parity bit to said error correction code word; and a second ECC encoder, which generates a second error correction encoding, which is a linear encoding using iterative decoding. Concatenated type encoded data, where a parity bit is added to every plurality of bits, is created, so an increase of circuit scale can be prevented even if a data string is interleaved into a plurality of blocks and error correction code parity is generated.
摘要翻译：错误纠正装置的错误在电路规模上没有增加。一种编码器，包括：第一ECC编码器，每m（m≥2）位将数据串交织成n（n≥2）个数据串块，并加上纠错码奇偶校验; 奇偶校验编码器，其在所述纠错码字的每多个位产生奇偶校验位，并将所述奇偶校验位加到所述纠错码字; 以及第二ECC编码器，其生成使用迭代解码的线性编码的第二纠错编码。创建了对每个多个比特添加奇偶校验位的级联型编码数据，因此即使将数据串交错为多个块并产生纠错码奇偶校验，也可以防止电路规模的增加。

5. 发明授权

US07388523B2 MTR encoding method, MTR decoding method, MTR encoder, MTR decoder, and magnetic recording device 失效
标题翻译： MTR编码方法，MTR解码方法，MTR编码器，MTR解码器和磁记录装置
公开(公告)号：US07388523B2
公开(公告)日：2008-06-17
申请号：US11484933
申请日：2006-07-12
申请人： Akihiro Itakura , Toshikazu Kanaoka , Toshio Ito
发明人： Akihiro Itakura , Toshikazu Kanaoka , Toshio Ito
IPC分类号： H03M5/00
CPC分类号： H03M5/145
摘要： An MTR encoder includes convolution units that perform convolution of input data using additional bits, MTR encoding units that MTR-encode data obtained by the convolution units, RDS calculating units and on-bit sequence checking units that calculate RDSs and counts the number of sequential on-bits of the data MTR-encoded by the MTR encoding units, respectively, and a selecting unit that selects optimum data based on the RDSs and the number of sequential on-bits.
摘要翻译： MTR编码器包括使用附加位执行输入数据的卷积的卷积单元，对由卷积单元获得的数据进行MTR编码的MTR编码单元，RDS计算单元和计算RDS的计数单元，并对序列数进行计数分别由MTR编码单元MTR编码的数据的一行和选择单元，其基于RDS和顺序导通位数选择最佳数据。

6. 发明授权

US08042030B2 Encoding apparatus, decoding apparatus, encoding method, decoding method, and storage device 失效
标题翻译：编码装置，解码装置，编码方法，解码方法和存储装置
公开(公告)号：US08042030B2
公开(公告)日：2011-10-18
申请号：US11891043
申请日：2007-08-08
申请人： Toshikazu Kanaoka , Toshio Ito
发明人： Toshikazu Kanaoka , Toshio Ito
IPC分类号： H03M13/03
CPC分类号： H03M13/1102 , H03M13/2957 , H03M13/2975 , H03M13/6343
摘要： An ECC decoder outputs, to a likelihood substituting unit, information on data in data blocks that is corrected to be valid. Based on the information, the likelihood substituting unit substitutes likelihood corresponding to the data corrected to be valid by the maximum value, and outputs it to an LDPC decoder. The LDPC decoder decodes user data with likelihoods partly substituted by the maximum value using LDPC parity, and calculates likelihood of data that constitutes the user data. The LDPC decoder outputs the calculated likelihood to a channel APP decoder as external data.
摘要翻译： ECC解码器向可能性替换单元输出关于修正为有效的数据块中的数据的信息。基于该信息，可能性替换单元将对应于经校正的数据的似然率替换为最大值的有效值，并将其输出到LDPC解码器。 LDPC解码器使用LDPC奇偶校验以部分被最大值替代的可能性解码用户数据，并计算构成用户数据的数据的可能性。 LDPC解码器将计算出的似然值输出到通道APP解码器作为外部数据。

7. 发明申请

US20090141384A1 Inspection method for perpendicular magnetic recording medium and inspection device thereof 审中-公开
标题翻译：垂直磁记录介质的检查方法及其检测装置
公开(公告)号：US20090141384A1
公开(公告)日：2009-06-04
申请号：US12005196
申请日：2007-12-26
申请人： Akihiro Itakura , Toshikazu Kanaoka
发明人： Akihiro Itakura , Toshikazu Kanaoka
IPC分类号： G11B27/36
CPC分类号： G11B20/10009 , G11B5/09 , G11B5/4555 , G11B20/10203 , G11B2005/0029 , G11B2220/2516
摘要： A device inspects the performance of a perpendicular magnetic recording medium by separating the medium noise component of a perpendicular magnetic recording medium to decrease the error rate by accurately separating and detecting the medium noise component. Using correlation matrices, jitter noise and T50 noise which depend on the transition point of magnetization, and DC noise which is added to a DC component are separated and detected from the medium noise component of a perpendicular magnetic recording medium acquired from the reproducing waveform of a magnetic head. By adding a base matrix of the DC noise component to a linear separation expression for detecting the noise power from the medium noise component, the DC noise is detected using the least square method, separately from the other medium noise, which depends on the fluctuation of magnetization transition points.
摘要翻译：设备通过分离垂直磁记录介质的介质噪声分量来检查垂直磁记录介质的性能，通过精确地分离和检测介质噪声分量来降低误码率。使用相关矩阵，依赖于磁化转变点的抖动噪声和T50噪声以及加到直流分量上的直流噪声从从一个直流分量的再现波形获得的垂直磁记录介质的中等噪声分量中被分离和检测磁头。通过将DC噪声分量的基本矩阵添加到用于检测来自中等噪声分量的噪声功率的线性分离表达式，使用最小二乘法检测DC噪声，与其他中等噪声分开，这取决于波动磁化转变点。

8. 发明申请

US20090135703A1 HOLOGRAPHIC RECORDING MEDIUM 审中-公开
标题翻译：全息记录介质
公开(公告)号：US20090135703A1
公开(公告)日：2009-05-28
申请号：US12323841
申请日：2008-11-26
申请人： Akiyoshi Uchida , Toshikazu Kanaoka
发明人： Akiyoshi Uchida , Toshikazu Kanaoka
IPC分类号： G11B7/00
CPC分类号： G11B7/0065 , G11B7/00772 , G11B7/00781 , G11B7/24044 , G11B20/10 , G11B20/1217 , G11B27/24 , G11B2020/1267 , G11B2020/1274 , G11B2220/2504
摘要： This invention is a holographic recording medium including a track in which position information to specify a recording position and a reproducing position of page data is formed. The position information of the track is formed of position detection patterns. The position detection patterns each including a first detection mark row including center pits arranged at predetermined intervals; and a second detection mark row including side marks arranged at the same intervals as the intervals of the center pits, the side marks having lengths substantially corresponding to integral multiples of the intervals of the center pits. The second detection mark row is arranged adjacent to the first detection mark row such that both ends of the side marks are arranged so as to correspond to the center pits in a track width direction, and page data is recorded and reproduced on the basis of positions of the center pits or positions of the ends of the side marks.
摘要翻译：本发明是一种全息记录介质，包括轨道，其中形成指定记录位置的位置信息和页面数据的再现位置。轨道的位置信息由位置检测图案形成。每个位置检测图案包括以预定间隔布置的包括中心凹坑的第一检测标记行; 以及第二检测标记行，其包括以与所述中心凹坑的间隔相同的间隔布置的侧面标记，所述侧标记具有基本对应于所述中心凹坑的间隔的整数倍的长度。第二检测标记行被布置成与第一检测标记行相邻，使得侧标记的两端被布置成与轨道宽度方向上的中心凹坑相对应，并且基于位置记录和再现页数据的中心凹坑或侧痕的端部的位置。

9. 发明申请

US20070076563A1 Holographic recording medium 有权
标题翻译：全息记录介质
公开(公告)号：US20070076563A1
公开(公告)日：2007-04-05
申请号：US11342438
申请日：2006-01-30
申请人： Akiyoshi Uchida , Toshikazu Kanaoka
发明人： Akiyoshi Uchida , Toshikazu Kanaoka
IPC分类号： G11B7/00
CPC分类号： G11B7/0065 , G11B7/00772 , G11B7/00781 , G11B7/24044 , G11B20/10 , G11B20/1217 , G11B27/24 , G11B2020/1267 , G11B2020/1274 , G11B2220/2504
摘要： This invention is a holographic recording medium including a track in which position information to specify a recording position and a reproducing position of page data is formed. The position information of the track is formed of position detection patterns. The position detection patterns each including a first detection mark row including center pits arranged at predetermined intervals; and a second detection mark row including side marks arranged at the same intervals as the intervals of the center pits, the side marks having lengths substantially corresponding to integral multiples of the intervals of the center pits. The second detection mark row is arranged adjacent to the first detection mark row such that both ends of the side marks are arranged so as to correspond to the center pits in a track width direction, and page data is recorded and reproduced on the basis of positions of the center pits or positions of the ends of the side marks.
摘要翻译：本发明是一种全息记录介质，包括轨道，其中形成指定记录位置的位置信息和页面数据的再现位置。轨道的位置信息由位置检测图案形成。每个位置检测图案包括以预定间隔布置的包括中心凹坑的第一检测标记行; 以及第二检测标记行，其包括以与所述中心凹坑的间隔相同的间隔布置的侧面标记，所述侧标记具有基本对应于所述中心凹坑的间隔的整数倍的长度。第二检测标记行被布置成与第一检测标记行相邻，使得侧标记的两端被布置成与轨道宽度方向上的中心凹坑相对应，并且基于位置记录和再现页数据的中心凹坑或侧痕的端部的位置。

10. 发明授权

US06724702B2 Apparatus for reproducing recorded data 失效
标题翻译：用于再现记录数据的装置
公开(公告)号：US06724702B2
公开(公告)日：2004-04-20
申请号：US09997325
申请日：2001-11-29
申请人： Masakazu Taguchi , Akiyoshi Uchida , Toshikazu Kanaoka
发明人： Masakazu Taguchi , Akiyoshi Uchida , Toshikazu Kanaoka
IPC分类号： G11B700
CPC分类号： G11B20/10083 , G11B7/005 , G11B11/10515 , G11B11/10597 , G11B20/10009 , G11B20/10055 , G11B20/22
摘要： In an apparatus for reproducing recorded data, a crosstalk signal is generated by converting adjacent data recorded on an adjacent track into a waveform of said reproduction signal and the crostalk signal is deducted from the reproduction signal. Then, the reproduction signal in which the crosstalk signal is eliminated is decoded in accordance with the predetermined algorithm and reproduced.
摘要翻译：在用于再现记录数据的装置中，通过将记录在相邻轨道上的相邻数据转换成所述再现信号的波形来产生串扰信号，并且从再现信号中减去串扰信号。然后，根据预定算法解码消除了串扰信号的再现信号并再现。

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