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    • 1. 发明授权
    • Method and apparatus for reproducing data and method and apparatus for recording and/or reproducing data
    • 用于再现数据的方法和装置,用于记录和/或再现数据的方法和装置
    • US06798593B2
    • 2004-09-28
    • US09814548
    • 2001-03-22
    • Masayuki HattoriJun MurayamaToshiyuki Miyauchi
    • Masayuki HattoriJun MurayamaToshiyuki Miyauchi
    • G11B509
    • H03M13/2957G11B20/10194G11B20/1426G11B20/1833G11B20/1866G11B2020/1434G11B2020/1446H03M13/6325
    • A magnetic recording and/or reproducing apparatus which 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, s modulation and error correction turbo decoder 64 provided with 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 for decoding data supplied from the deinterleaver and with a second interleaver 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.
    • 一种实现高性能编码和高效率解码以降低解码错误率的磁记录和/或再现装置。 磁记录和/或再现装置50在其记录系统中包括用于纠错编码输入数据的纠错编码器51和用于对从纠错编码器51提供的数据序列进行加扰的交织器52.磁记录和/ 或再现装置50在其再现系统中还包括设置有去交织器的调制和纠错turbo解码器64,用于对输入数据的序列进行加扰和重新排列,以便恢复由所述解交织器重新排列的输入数据的序列 交织器52到原始比特序列,纠错软解码器,用于对从解交织器提供的数据进行解码,以及用于第二交织器,用于加扰和重新排列作为从纠错软解码器输出的数据与数据之间的差异的数据序列 从解交织器输出。
    • 2. 发明授权
    • Method and apparatus for reproducing data and method and apparatus for recording and/or reproducing data
    • 用于再现数据的方法和装置,用于记录和/或再现数据的方法和装置
    • US07196999B2
    • 2007-03-27
    • US09814379
    • 2001-03-21
    • Masayuki HattoriJun MurayamaToshiyuki Miyauchi
    • Masayuki HattoriJun MurayamaToshiyuki Miyauchi
    • G11B5/09
    • H03M13/6325G11B20/10009G11B20/1426G11B20/1866G11B2020/1434G11B2020/1446H03M5/14H03M13/27H03M13/2957H03M13/2972H03M13/45H03M13/6343
    • 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 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.
    • 用于记录或再现其中实现高性能编码和高效率解码以降低解码错误率的数据的方法和装置。 磁记录和/或再现装置50在记录系统中包括用于以预定方式对输入数据进行调制编码的调制编码器52和用于交织从调制编码器52提供的数据的交织器53以重新排列数据序列。 磁记录和/或再现装置50还包括在再现系统中的第一解交织器,用于交织用于重新排列数据序列的输入数据,使得由交织器53重新排列的数据的位序列将被恢复到 其原始比特序列,用于从第一去交织器提供的调制解码数据的调制SISO解码器和用于对应于由调制SISO解码器输出的数据与由第一解交织器输出的数据之间的差值相对应的数据的第二解交织器,用于重新排列 差异数据的数据序列。
    • 3. 发明授权
    • Method and apparatus for reproducing data and method and apparatus for recording and/or reproducing data
    • 用于再现数据的方法和装置,用于记录和/或再现数据的方法和装置
    • US06744580B2
    • 2004-06-01
    • US09814429
    • 2001-03-21
    • Masayuki HattoriToshiyuki MiyauchiJun Murayama
    • Masayuki HattoriToshiyuki MiyauchiJun Murayama
    • G11B509
    • H03M13/6325G11B20/10H03M13/2972
    • A magnetic recording and/or reproducing apparatus performing efficient decoding to lower a decoding error rate. A magnetic recording and/or reproducing apparatus 50 includes a modulation SISO decoder 63 for modulation decoding data modulation-encoded in a predetermined fashion by a modulation coder 52. In the magnetic recording and/or reproducing apparatus 50, the modulation SISO decoder 63 is a soft input soft output (SISO) type modulation decoder fed with a soft input signal and issuing a soft output signal. The modulation SISO decoder 63 is fed with a trellis soft output signal D64 supplied from a trellis SISO decoder 62 to find a soft decision value for an error correction coding data D52 fed to the modulation coder 52 of the recording system to generate a modulated soft decision signal D65. The modulation SISO decoder 63 routes the so-generated modulated soft decision signal D65 to a downstream side error correction soft decoder 64.
    • 执行有效解码以降低解码错误率的磁记录和/或再现装置。 磁记录和/或再现装置50包括调制SISO解码器63,用于通过调制编码器52以预定的方式调制对数据进行调制解码。在磁记录和/或再现装置50中,调制SISO解码器63是 软输入软输出(SISO)型调制解码器,输入软输入信号并发出软输出信号。 调制SISO解码器63馈送有从网格SISO解码器62提供的网格软输出信号D64,以找到馈送到记录系统的调制编码器52的纠错编码数据D52的软判决值,以产生调制软判决 信号D65。 调制SISO解码器63将所生成的调制软判决信号D65路由到下游侧纠错软解码器64。
    • 4. 发明授权
    • Method and apparatus for reproducing data and method and apparatus for recording and/or reproducing data
    • 用于再现数据的方法和装置,用于记录和/或再现数据的方法和装置
    • US06826722B2
    • 2004-11-30
    • US09814280
    • 2001-03-21
    • Toshiyuki MiyauchiMasayuki HattoriJun Murayama
    • Toshiyuki MiyauchiMasayuki HattoriJun Murayama
    • G06F1100
    • G11B20/10H03M13/39
    • A magnetic recording and/or reproducing apparatus in which the decoding error rate is to be lowered through realization of the high-performance encoding and the high efficiently decoding. To this end, a magnetic recording and/or reproducing apparatus 50 includes, in its recording system, an error correction coder 51 for error correction encoding input data, an interleaver 52 for interleaving data supplied from the error correction coder 51 for re-arraying the data sequence, a modulation encoder 53 for modulation encoding the data from the interleaver 52 in a predetermined fashion and an interleaver 54 for interleaving the data from the modulation encoder 53 for re-arraying the data sequence. The magnetic recording and/or reproducing apparatus 50 also includes, in its reproduction system, a channel, modulation and error correction turbo decoder 64 formed by concatenation of an error correction soft decoder and a modulation decoder for decoding the input data with the interposition of two deinterleavers and two interleavers.
    • 一种通过实现高性能编码和高效解码来降低解码错误率的磁记录和/或再现装置。 为此,磁记录和/或再现装置50在其记录系统中包括用于对输入数据进行纠错编码的纠错编码器51,用于交错从纠错编码器51提供的数据的交织器52用于重新排列 数据序列,用于以预定方式对来自交织器52的数据进行调制编码的调制编码器53和用于对来自调制编码器53的数据进行交织以重新排列数据序列的交织器54。 磁记录和/或再现装置50在其再现系统中还包括通道,调制和纠错turbo解码器64,其通过错误校正软解码器和调制解码器的级联形成,该调制解码器用于对输入数据进行解码以插入两个 去交织器和两个交织器。
    • 10. 发明授权
    • Encoding method and memory device
    • 编码方法和存储器件
    • US06732322B1
    • 2004-05-04
    • US09381661
    • 1999-11-23
    • Toshiyuki MiyauchiMasayuki Hattori
    • Toshiyuki MiyauchiMasayuki Hattori
    • H03M1300
    • G06F11/1008G06F11/1068G06F11/1072G11C7/1006G11C11/56G11C11/5621G11C16/04G11C29/00G11C29/42H03M13/15
    • This invention relates to a memory apparatus or the like adaptable to a multi-value recording flash memory and others. A flash memory 10 is designed for 16-value (4-bit) recording. For a write operation, the encoder (12) converts input data Din into an abbreviated Reed-Solomon code to provide write data WD. The converter (13) converts the write data WD into four-bit parallel data. The converted data are fed and written to the each memory cell constituting cell arrays (11) successively. For a read operation, the converter (14) converts read data RD from the cell arrays (11) into one-byte (8-bit) parallel data and supplies the converted data to the decoder (15) for error correction in units of bytes, whereby output data Dout is obtained. Since the Reed-Solomon code is used, sufficient performance with a limited number of errors to be corrected can be obtained.
    • 本发明涉及适用于多值记录闪存等的存储装置等。 闪存10被设计用于16值(4位)记录。 对于写入操作,编码器(12)将输入数据Din转换为缩写的Reed-Solomon码,以提供写入数据WD。 转换器(13)将写入数据WD转换为四位并行数据。 将转换后的数据依次送入构成单元阵列(11)的各存储单元。 对于读取操作,转换器(14)将来自单元阵列(11)的读取数据RD转换成一个字节(8位)并行数据,并将转换的数据提供给解码器(15)以用于以字节为单位进行纠错 ,从而获得输出数据Dout。 由于使用里德 - 所罗门码,因此可以获得具有有限数量的要纠正的错误的足够的性能。