公开(公告)号：US06653952B2

公开(公告)日：2003-11-25

申请号：US10160023

申请日：2002-06-04

申请人： Atsushi Hayami ,  Toshio Kuroiwa ,  Tsuyoshi Oki

发明人： Atsushi Hayami ,  Toshio Kuroiwa ,  Tsuyoshi Oki

IPC分类号： H03M700

CPC分类号： H03M5/145 ,  G11B20/1426 ,  G11B2020/1282 ,  G11B2020/1284 ,  G11B2020/143 ,  G11B2020/1457 ,  H03M7/46

摘要： There is disclosed a modulation method in which a four bit unit of a plurality of continuous input data words is encoded into a six bit unit of a plurality of continuous output code words by referring to a plurality of coding tables including output code words corresponding to input data words, and coding table designation information in which a coding table for use in encoding the next input data word is designated. The plurality of coding tables includes at least a first coding table and a second coding table, and first and second signals respectively obtained by subjecting a first output code word of said first coding table corresponding to a predetermined input data word and a second output code word of said second coding table corresponding to said predetermined input data word to NRZI modulation are reverse to each other in polarity. Further, in particular, two redundant bits are inserted into the plurality of continuous output code words for each predetermined number of corresponding data words. Even with such redundant bits, a DSV control is performed in any section, k satisfies 9 in a (1, k) RLL rule, and a repetition frequency of a minimum run is limited.

摘要翻译： 公开了一种调制方法，其中通过参考包括与输入对应的输出代码字的多个编码表，将多个连续输入数据字中的四位单位编码为多个连续输出代码字的六位单元 数据字和编码表指定信息，其中指定用于编码下一个输入数据字的编码表。 多个编码表至少包括第一编码表和第二编码表，以及分别通过对与预定输入数据字对应的所述第一编码表的第一输出代码字和第二输出代码字 对应于所述预定输入数据字到NRZI调制的所述第二编码表的极性相反。 此外，特别地，对于每个预定数量的相应数据字，两个冗余比特被插入到多个连续输出码字中。 即使使用这样的冗余比特，在任何部分都执行DSV控制，在（1，k）RLL规则中k满足9，并且限制最小运行的重复频率。

公开(公告)号：US06573848B2

公开(公告)日：2003-06-03

申请号：US10060337

申请日：2002-02-01

申请人： Atsushi Hayami

发明人： Atsushi Hayami

IPC分类号： H03M506

CPC分类号： H03M5/145 ,  G11B20/1426 ,  G11B2020/143 ,  G11B2020/1457 ,  H03M7/42 ,  H03M7/46

摘要： A 6-bit output code word is generated in response to every 4-bit input code word by referring to a set of encoding tables. The encoding tables contain output code words assigned to input code words, and contain encoding-table designation information accompanying each output code word. The encoding-table designation information designates an encoding table among the encoding tables which is used next to generate an output code word immediately following the output code word accompanied with the encoding-table designation information. Two redundant bits are added to every prescribed number of the successive generated output code words for digital-sum-variation control. The generated output code words and the added redundant bits are sequentially connected into a redundant-bit-added output-code-word sequence which follows predetermined run length limiting rules (1, k)RLL, where “k” denotes a predetermined natural number equal to 9.

摘要翻译： 通过参考一组编码表，响应于每个4位输入代码字产生6位输出代码字。 编码表包含分配给输入代码字的输出代码字，并且包含伴随每个输出代码字的编码表指定信息。 编码表指定信息指定编码表中的编码表，该编码表接下来用于生成紧跟在与编码表指定信息相关的输出代码字之后的输出代码字。 对于用于数字和变化控制的连续生成的输出码字的每个规定数量，增加两个冗余比特。 所生成的输出码字和附加的冗余比特顺序地连接到遵循预定游程长度限制规则（1，k）RLL的冗余比特相加输出码字序列中，其中“k”表示预定的自然数相等 到9。

公开(公告)号：US20110300977A1

公开(公告)日：2011-12-08

申请号：US13116202

申请日：2011-05-26

申请人： Atsushi Hayami ,  Kaori Mori ,  Masahiko Konno ,  Yuji Kurematsu

发明人： Atsushi Hayami ,  Kaori Mori ,  Masahiko Konno ,  Yuji Kurematsu

IPC分类号： F16H55/14

CPC分类号： F16H55/30 ,  F16H2055/306

摘要： In a sprocket comprising a sprocket hub, sprocket teeth and a cushion plate for contacting link plates of a transmission chain, the cushion plate is formed with concave portions at angular positions corresponding to the angular positions of the tips of the sprocket teeth, thereby avoiding contact, or reducing contact pressure, between the cushion plate and the middle parts of link plates of the chain.

摘要翻译： 在包括链轮毂，链轮齿和用于接触传动链的链板的缓冲板的链轮中，缓冲板在对应于链轮齿的尖端的角位置的角位置处形成有凹部，从而避免接触 或降低接触压力，在缓冲板和链条的链板的中间部分之间。

公开(公告)号：US20090111629A1

公开(公告)日：2009-04-30

申请号：US12195541

申请日：2008-08-21

申请人： Akira Kobara ,  Atsushi Hayami

发明人： Akira Kobara ,  Atsushi Hayami

IPC分类号： F16H7/08

CPC分类号： F16H7/08 ,  F02B67/06 ,  F16H2007/081 ,  F16H2007/0878 ,  F16H2007/0893

摘要： In a spring-loaded tensioner lever having a coiled torsion spring accommodated in a space inside the lever, a stopper mechanism, comprising a pin held removably in a hole in the lever, holds an arm of the torsion spring against movement in the unwinding direction while the lever, or the chain, is being mounted on a mounting surface. The pin and a bent end of the arm of the spring fit into holes in the mounting surface positioned so that a pivot shaft-receiving hole of the lever is automatically aligned with a shaft-mounting hole in the mounting surface.

摘要翻译： 在弹簧加载的张紧器杆中，其具有容纳在杠杆内部的空间中的盘绕的扭转弹簧，止动机构包括可拆卸地保持在杆中的孔中的销，以防止扭转弹簧的臂抵抗在退绕方向上的运动，而 杠杆或链条正在安装在安装表面上。 弹簧的销和弹簧的弯曲端嵌入到安装表面中的孔中，使得杠杆的枢转轴接收孔自动地与安装表面中的轴安装孔对准。

公开(公告)号：US20070055920A1

公开(公告)日：2007-03-08

申请号：US11594839

申请日：2006-11-09

申请人： Kazumi Iwata ,  Atsushi Hayami

发明人： Kazumi Iwata ,  Atsushi Hayami

IPC分类号： H03M13/00

CPC分类号： G11B20/1803 ,  G11B20/1833 ,  G11B20/1866 ,  G11B2020/1222 ,  G11B2020/1836 ,  G11B2020/1853 ,  G11B2220/2537 ,  H03M13/27 ,  H03M13/2909

摘要： With two consecutive product-coded ECC blocks, EB1 and EB2, as a set, the rth row of first ECB block EB1 is followed by the rth row of second ECC block EB2 in such a way that the first row of first ECC block EB1 is followed by the first row of second ECB block EB2, which is followed by the second row of first ECC block ECB1, which is followed by the second row of second ECC block EB2, and so on, to interleave data on a row basis. That is, data of two ECC blocks, EB1 and EB2, is allocated alternately on a row basis. This allocation method allows an error to be distributed after reproduction even when a serious burst error extending 18 rows occurs in an ECC block.

摘要翻译： 使用两个连续的产品编码ECC块作为一组，EB1和EB2作为一组，第一ECB块EB 1的第r行之后是第二ECC块EB 2的第r行，使得第一行第一行 ECC块EB 1之后是第二ECB块EB 2的第一行，其后是第二行第一ECC块ECB 1，后面是第二行第二ECC块EB 2等，依此类推 以行为单位交织数据。 也就是说，两个ECC块的数据EB 1和EB 2被交替地分配给行。 这种分配方法即使在ECC块中出现延​​伸18行的严重突发错误时也允许在再现之后分布错误。

公开(公告)号：US07154835B2

公开(公告)日：2006-12-26

申请号：US10819982

申请日：2004-04-08

申请人： Kazumi Iwata ,  Atsushi Hayami

发明人： Kazumi Iwata ,  Atsushi Hayami

IPC分类号： G11B20/12

CPC分类号： G11B20/1803 ,  G11B20/1833 ,  G11B20/1866 ,  G11B2020/1222 ,  G11B2020/1836 ,  G11B2020/1853 ,  G11B2220/2537 ,  H03M13/27 ,  H03M13/2909

摘要： With two consecutive product-coded ECC blocks, EB1 and EB2, as a set, the rth row of first ECB block EB1 is followed by the rth row of second ECC block EB2 in such a way that the first row of first ECC block EB1 is followed by the first row of second ECB block EB2, which is followed by the second row of first ECC block ECB1, which is followed by the second row of second ECC block EB2, and so on, to interleave data on a row basis. That is, data of two ECC blocks, EB1 and EB2, is allocated alternately on a row basis. This allocation method allows an error to be distributed after reproduction even when a serious burst error extending 18 rows occurs in an ECC block.

摘要翻译： 使用两个连续的产品编码ECC块作为一组，EB1和EB2作为一组，第一ECB块EB 1的第r行之后是第二ECC块EB 2的第r行，使得第一行第一行 ECC块EB 1之后是第二ECB块EB 2的第一行，其后是第二行第一ECC块ECB 1，后面是第二行第二ECC块EB 2等，依此类推 以行为单位交织数据。 也就是说，两个ECC块的数据EB 1和EB 2被交替地分配给行。 这种分配方法即使在ECC块中出现延​​伸18行的严重突发错误时也允许在再现之后分布错误。

公开(公告)号：US06963296B2

公开(公告)日：2005-11-08

申请号：US10073397

申请日：2002-02-12

申请人： Tsuyoshi Oki ,  Atsushi Hayami

发明人： Tsuyoshi Oki ,  Atsushi Hayami

IPC分类号： G11B20/10 ,  G11B20/14 ,  G11B20/18 ,  G11B27/30 ,  H03M5/14 ,  H03M7/14 ,  H03M13/27 ,  H03M7/00

CPC分类号： H03M13/27 ,  G11B20/1426 ,  G11B20/18 ,  G11B20/1833 ,  G11B20/1866 ,  G11B27/3027 ,  G11B2020/1457 ,  G11B2220/2562 ,  H03M5/145

摘要： There is disclosed a recording method for performing a DSV control while recording a recording signal generated by inserting a synchronous signal for decoding reproduction data into every predetermined number of code words in a code word string satisfying a predetermined run length restriction rule and to be outputted into a recording medium, when a plurality of coding tables are used to convert an input data word of p-bits to a code word of q-bits (q>p), and the code word string obtained by directly coupling the code words is recorded and reproduced in a recording medium such as an optical disk and magnetic disk, or transmitted via a transmitting portion, wherein the p-bits are 8 bits, the q-bits are 15 bits, and the predetermined run length restriction rule stipulates that a minimum run length of the signal obtained by NRZI-converting the code word excluding the synchronous signal is 3T, and a maximum run length is any one of 11T, 12T, 13T, and 14T.

摘要翻译： 公开了一种记录方法，用于在记录通过将再现数据解码的同步信号插入到满足规定游程长度限制规则的码字串中的每个预定数量的码字而产生的记录信号的同时，并将其输出 记录介质，当使用多个编码表将p位的输入数据字转换为q位（q> p）的代码字时，并且记录通过直接耦合代码字获得的代码字串 并且在诸如光盘和磁盘的记录介质中再现，或者经由发送部分发送，其中p位是8位，q位是15位，并且预定的行程长度限制规则规定最小值 通过NRZI转换除了同步信号之外的码字获得的信号的游程长度为3T，最大游程长度为11T，12T，13T和14T中的任何一个。

公开(公告)号：US06772386B2

公开(公告)日：2004-08-03

申请号：US09956860

申请日：2001-09-21

申请人： Kazumi Iwata ,  Atsushi Hayami

发明人： Kazumi Iwata ,  Atsushi Hayami

IPC分类号： H03M1327

CPC分类号： G11B20/1803 ,  G11B20/1833 ,  G11B20/1866 ,  G11B2020/1222 ,  G11B2020/1836 ,  G11B2020/1853 ,  G11B2220/2537 ,  H03M13/27 ,  H03M13/2909

摘要： With two consecutive product-coded ECC blocks, EB1 and EB2, as a set, the rth row of first ECB block EB1 is followed by the rth row of second ECC block EB2 in such a way that the first row of first ECC block EB1 is followed by the first row of second ECB block EB2, which is followed by the second row of first ECC block ECB1, which is followed by the second row of second ECC block EB2, and so on, to interleave data on a row basis. That is, data of two ECC blocks, EB1 and EB2, is allocated alternately on a row basis. This allocation method allows an error to be distributed after reproduction even when a serious burst error extending 18 rows occurs in an ECC block.

摘要翻译： 使用两个连续的产品编码的ECC块作为一组，EB1和EB2作为一组，第一ECB块EB1的第r行之后是第二ECC块EB2的第r行，使得第一个ECC块EB1的第一行为 之后是第二ECB块EB2的第一行，后面是第二行第一ECC块ECB1，后面是第二行第二ECC块EB2等等，以一行的方式交织数据。 也就是说，两个ECC块的数据EB1和EB2被交替地分配给行。 这种分配方法即使在ECC块中出现延​​伸18行的严重突发错误时也允许在再现之后分布错误。

公开(公告)号：US06690308B2

公开(公告)日：2004-02-10

申请号：US10400499

申请日：2003-03-28

申请人： Atsushi Hayami

发明人： Atsushi Hayami

IPC分类号： H03M506

CPC分类号： H03M5/145 ,  G11B20/1426 ,  G11B2020/143 ,  G11B2020/1457 ,  H03M7/42 ,  H03M7/46

摘要： A 6-bit output code word is generated in response to every 4-bit input code word by referring to a set of encoding tables. The encoding tables contain output code words assigned to input code words, and contain encoding-table designation information accompanying each output code word. The encoding-table designation information designates an encoding table among the encoding tables which is used next to generate an output code word immediately following the output code word accompanied with the encoding-table designation information. Two redundant bits are added to every prescribed number of the successive generated output code words for digital-sum-variation control. The generated output code words and the added redundant bits are sequentially connected into a redundant-bit-added output-code-word sequence which follows predetermined run length limiting rules (1, k)RLL, where “k” denotes a predetermined natural number equal to 9.

摘要翻译： 通过参考一组编码表，响应于每个4位输入代码字产生6位输出代码字。 编码表包含分配给输入代码字的输出代码字，并且包含伴随每个输出代码字的编码表指定信息。 编码表指定信息指定编码表中的编码表，该编码表接下来用于生成紧跟在与编码表指定信息相关的输出代码字之后的输出代码字。 对于用于数字和变化控制的连续生成的输出码字的每个规定数量，增加两个冗余比特。 所生成的输出码字和附加的冗余比特顺序地连接到遵循预定游程长度限制规则（1，k）RLL的冗余比特相加输出码字序列中，其中“k”表示预定的自然数相等 到9。

公开(公告)号：US06297753B1

公开(公告)日：2001-10-02

申请号：US09489609

申请日：2000-01-21

申请人： Atsushi Hayami

发明人： Atsushi Hayami

IPC分类号： H03M700

CPC分类号： G11B20/1426 ,  G11B2020/1461 ,  G11B2020/1469 ,  H03M13/31

摘要： A p-to-q (p

摘要翻译： p-q（p