公开(公告)号：EP1089437A3

公开(公告)日：2004-08-04

申请号：EP00308206.2

申请日：2000-09-20

Applicant: STMicroelectronics, Inc.

Inventor： Rezzi, Francesco ,  Marrow, Marcus

IPC: H03M5/14 ,  G11B20/14

CPC classification number: H03M13/098 ,  G11B20/14 ,  G11B20/18 ,  H03M13/09

Abstract: A code word includes a first group of data bits and code bits that represent a second group of data bits. The code word may have a minimum probability of bit transitions among its bits. It may include a parity bit. A code that includes such a code word can have both a high efficiency and small error propagation. By including fewer bit transitions, a sequence of such code words causes less read noise, and fewer read errors. A parity bit allows improved error detection. Such a code word can significantly increase the effective write and read speeds of a disk drive.

公开(公告)号：EP1089437A2

公开(公告)日：2001-04-04

申请号：EP00308206.2

申请日：2000-09-20

Applicant: STMicroelectronics, Inc.

Inventor： Rezzi, Francesco ,  Marrow, Marcus

IPC: H03M5/00 ,  H03M5/14 ,  G11B20/14 ,  G11B20/18 ,  H03M13/31

CPC classification number: H03M13/098 ,  G11B20/14 ,  G11B20/18 ,  H03M13/09

Abstract: A code word includes a first group of data bits and code bits that represent a second group of data bits. The code word may have a minimum probability of bit transitions among its bits. It may include a parity bit. A code that includes such a code word can have both a high efficiency and small error propagation. By including fewer bit transitions, a sequence of such code words causes less read noise, and fewer read errors. A parity bit allows improved error detection. Such a code word can significantly increase the effective write and read speeds of a disk drive.

Abstract translation: 代码字包括表示第二组数据位的第一组数据位和代码位。 代码字可能在其位之间具有位转换的最小概率。 它可以包括奇偶校验位。 包含这样的代码字的代码可以具有高效率和小错误传播。 通过包含更少的位转换，这样的代码字的序列导致更少的读取噪声和更少的读取错误。 奇偶校验位允许改进的错误检测。 这样的代码字可以显着增加磁盘驱动器的有效写入和读取速度。

公开(公告)号：EP1808963B1

公开(公告)日：2010-09-15

申请号：EP07075267.0

申请日：2000-09-20

Applicant: STMicroelectronics, Inc.

Inventor： Rezzi, Francesco ,  Marrow, Marcus

IPC: H03M5/14 ,  G11B20/14

CPC classification number: H03M13/098 ,  G11B20/14 ,  G11B20/18 ,  H03M13/09

公开(公告)号：EP1808963A1

公开(公告)日：2007-07-18

申请号：EP07075267.0

申请日：2000-09-20

Applicant: STMicroelectronics, Inc.

Inventor： Rezzi, Francesco ,  Marrow, Marcus

IPC: H03M5/14 ,  G11B20/14

CPC classification number: H03M13/098 ,  G11B20/14 ,  G11B20/18 ,  H03M13/09

Abstract: An encoder for encoding data, the encoder operable to generate a code word comprising: a first group of data bits; code bits that represent a second group of data bits; and a minimum probability of transitions among the code bits.

Abstract translation: 一种用于编码数据的编码器，所述编码器可操作以产生代码字，包括：第一组数据位; 表示第二组数据位的代码位; 以及码位之间的最小转换概率。

公开(公告)号：EP1089437B1

公开(公告)日：2007-05-30

申请号：EP00308206.2

申请日：2000-09-20

Applicant: STMicroelectronics, Inc.

Inventor： Rezzi, Francesco ,  Marrow, Marcus

IPC: H03M5/14 ,  G11B20/14

CPC classification number: H03M13/098 ,  G11B20/14 ,  G11B20/18 ,  H03M13/09

公开(公告)号：EP1089442A3

公开(公告)日：2004-09-22

申请号：EP00308174.2

申请日：2000-09-20

Applicant: STMicroelectronics, Inc.

Inventor： Rezzi, Francesco ,  Marrow, Marcus

IPC: H03M13/41 ,  G11B20/18

CPC classification number: G11B20/18 ,  H03M13/41

Abstract: A Viterbi detector receives a signal that represents a sequence of values and recovers the sequence by identifying surviving paths of potential sequence values and periodically eliminating the identified surviving paths having a predetermined parity. By recognizing the parity of portions of a data sequence, the detector more accurately recovers data from a read signal having a reduced SNR and allows an increase in the storage density of a disk drive's storage disk. The detector recovers only sequence portions having a recognized parity such as even parity and disregards sequence portions having unrecognized parities.

公开(公告)号：EP1089442A2

公开(公告)日：2001-04-04

申请号：EP00308174.2

申请日：2000-09-20

Applicant: STMicroelectronics, Inc.

Inventor： Rezzi, Francesco ,  Marrow, Marcus

IPC: H03M13/41 ,  G11B20/18

CPC classification number: G11B20/18 ,  H03M13/41

Abstract: A Viterbi detector receives a signal that represents a sequence of values and recovers the sequence by identifying surviving paths of potential sequence values and periodically eliminating the identified surviving paths having a predetermined parity. By recognizing the parity of portions of a data sequence, the detector more accurately recovers data from a read signal having a reduced SNR and allows an increase in the storage density of a disk drive's storage disk. The detector recovers only sequence portions having a recognized parity such as even parity and disregards sequence portions having unrecognized parities.

Abstract translation: 维特比检测器接收表示值序列的信号，并通过识别潜在序列值的幸存路径并周期性地消除具有预定奇偶校验的所识别的存活路径来恢复序列。 通过识别数据序列的部分的奇偶校验，检测器更准确地从具有降低的SNR的读取信号中恢复数据，并且允许增加磁盘驱动器的存储盘的存储密度。 检测器仅恢复具有识别的奇偶校验的序列部分，例如偶校验，并忽略具有未被识别的奇偶校验的序列部分。