专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明公开

EP1137006A3 Recording and/or reproducing data 审中-公开
标题翻译：数据记录和/或再现
公开(公告)号：EP1137006A3
公开(公告)日：2003-12-17
申请号：EP01302686.9
申请日：2001-03-22
申请人： SONY CORPORATION
发明人： Hattori, Masayuki , Murayama, Jun , Miyauchi, Toshiyuki
IPC分类号： G11B20/18 , G11B20/14 , H03M5/14 , H03M13/27 , H03M13/29 , G11B20/10
CPC分类号： H03M13/2957 , G11B20/10194 , G11B20/1426 , G11B20/1833 , G11B20/1866 , G11B2020/1434 , G11B2020/1446 , H03M13/6325
摘要： A magnetic recording and/or reproducing apparatus achieves high performance encoding and high efficiency decoding to lower the decoding error rate. A magnetic recording and/or reproducing apparatus (50) includes, in its recording system, an error correction coder (51) for error correction coding input data and an interleaver (52) for scrambling the sequence of data supplied from the error correction coder (51). The magnetic recording and/or reproducing apparatus (50) also includes, in its reproducing system, A modulation and error correction turbo decoder (64). The decoder (64) has a deinterleaver for scrambling and re-arraying the sequence of the input data such as to restore the sequence of input data re-arrayed by the interleaver (52) to an original bit sequence, an error correction soft decoder (84) for decoding data supplied from the deinterleaver and a second interleaver (86) for scrambling and re-arraying the sequence of data given as a difference between data output from the error correction soft decoder and data output from the deinterleaver.

32. 发明公开

EP1143440A2 Method and apparatus for reproducing data and method and apparatus for recording and/or reproducing data 审中-公开
标题翻译：用于记录和/或再现数据的方法和用于数据再现装置，以及方法和装置
公开(公告)号：EP1143440A2
公开(公告)日：2001-10-10
申请号：EP01302599.4
申请日：2001-03-21
申请人： SONY CORPORATION
发明人： Hattori, Masayuki , Murayama, Jun , Miyauchi, Toshiyuki
IPC分类号： G11B20/10 , G11B20/14 , H03M13/45 , H03M5/14
CPC分类号： H03M13/6325 , G11B20/10009 , G11B20/1426 , G11B20/1866 , G11B2020/1434 , G11B2020/1446 , H03M5/14 , H03M13/27 , H03M13/2957 , H03M13/2972 , H03M13/45 , H03M13/6343
摘要： A method and apparatus for recording or reproducing data in which high performance encoding and a high efficiency decoding are realized to lower the decoding error rate. A magnetic recording and/or reproducing apparatus 50 includes, in a recording system, a modulation encoder 52 for modulation encoding input data in a predetermined fashion and an interleaver 53 for interleaving data supplied from the modulation encoder 52 to re-array the data sequence. The magnetic recording and/or reproducing apparatus 50 also includes, in a reproducing system, a first deinterleaver for interleaving the input data for re-arraying the data sequence so that the bit sequence of data re-arrayed by the interleaver 53 will be restored to its original bit sequence, a modulation soft input soft output (SISO) decoder for modulation decoding data supplied from the first deinterleaver and a second deinterleaver for interleaving data corresponding to a difference value between data output by the modulation SISO decoder and data output by the first deinterleaver to re-array the data sequence of the difference data.
摘要翻译：一种用于记录或再现其中的高性能编码和高效率解码数据的方法和装置实现，以降低解码误差率。一种磁记录和/或再现装置50包括，在记录系统中，以预定的方式调制编码输入数据的调制编码器52和交织器53交织来自调制编码器52提供来重新排列数据序列的数据。磁记录和/或再现装置50因此包括，在重放系统中，用于重新排列数据序列进行交织的输入数据的第一解交织器所以没有数据由交织器53重新排列的比特序列将被恢复到其原始的比特序列，将调制软输入软输出（SISO）解码器，用于从所述第一解交织器和用于通过所述第一交织数据由调制SISO解码器和数据输出对应于数据输出之间的差值的第二解交织器提供调制的数据进行解码解交织器重新排列差分数据的数据序列。

33. 发明公开

EP1137191A2 Coding and decoding 审中-公开
标题翻译： Kodierung und Dekodierung
公开(公告)号：EP1137191A2
公开(公告)日：2001-09-26
申请号：EP01302732.1
申请日：2001-03-23
申请人： SONY CORPORATION
发明人： Murayama, Jun , Hattori, Masayuki , Miyauchi, Toshiyuki , Yamamoto, Kouhei , Yokokawa, Takashi
IPC分类号： H03M13/29 , H03M13/23 , H03M13/45
CPC分类号： H03M13/29 , H03M13/256 , H03M13/258 , H03M13/2972 , H03M13/3988
摘要： Error correction coding and decoding according to a serial concatenated modulation system are carried out under high code rate. A coding apparatus (1) comprises three convolutional coders (10, 30 and 50) for carrying out convolutional operation; two interleavers (20 and 40) for rearranging order of data input; and a multi-value mapping circuit (60) for carrying out mapping of a single point on the basis of a predetermined modulation system. The coding apparatus (1) carries out convolutional operation whose code rate is "2/3" as coding of extrinsic codes by a convolutional coder (10), and carries out convolutional operation whose code rate is "1" as coding of inner codes by a convolutional coder (50), and a multi-value modulation mapping circuit (60) applies mapping to a transmission symbol of a 8 PSK modulation system to output it as a single code transmission symbol.
摘要翻译：根据串行级联调制方式的纠错编码和解码是以高码率进行的。编码装置（1）包括用于进行卷积运算的三个卷积编码器（10,30和50）两个交织器（20和40），用于重新排列数据输入顺序; 以及用于基于预定调制系统执行单个点的映射的多值映射电路（60）。编码装置（1）通过卷积编码器（10）对代码率为“2/3”进行外来码的卷积运算，进行码率为“1”的卷积运算，作为内码的编码，由卷积编码器（50）和多值调制映射电路（60）将映射应用于8PSK调制系统的传输符号，以将其作为单个代码传输符号输出。

34. 发明公开

EP0986182A2 Encoding apparatus and method, decoding apparatus and method and providing medium 审中-公开
标题翻译： KODIERUNGSAPPARAT UND VERFAHREN，DEKODIERUNGSAPPARAT UND VERFAHREN SOWIE ERZEUGUNGSMEDIUM
公开(公告)号：EP0986182A2
公开(公告)日：2000-03-15
申请号：EP99307013.5
申请日：1999-09-03
申请人： SONY CORPORATION
发明人： Murayama, Jun , Hattori, Masayuki
IPC分类号： H03M13/27 , H03M13/29 , H03M13/23
CPC分类号： H03M13/2735 , H03M13/296
摘要： In the invention, such replacement is performed that the sum of distances between two points before and after replacement is large, and in the case where replacement positions are regarded as a sequence, the sequence satisfies k-equidistributioness. At step S1, a replacement array by an affine interleaver is set. At steps S2 and S3, an M-sequence is generated, and a function L(t, u) is obtained by the existence position of 0 and 1. By data obtained through these processes, at step S4, a final replacement array is set.
摘要翻译：在本发明中，进行替换之前和之后的两点之间的距离之和大的替换，并且在替换位置被视为序列的情况下，该序列满足k等分布。在步骤S1，设置由仿射交织器的替换阵列。在步骤S2和S3中，产生M序列，通过0和1的存在位置获得函数L（t，u）。通过这些处理获得的数据，在步骤S4中，设置最终替换数组。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式