公开(公告)号：US08446683B2

公开(公告)日：2013-05-21

申请号：US13031818

申请日：2011-02-22

申请人： Changyou Xu ,  Shaohua Yang ,  Haitoa Xia ,  Kapil Gaba

发明人： Changyou Xu ,  Shaohua Yang ,  Haitoa Xia ,  Kapil Gaba

IPC分类号： G11B5/00

CPC分类号： G11B20/10083 ,  G11B20/10296 ,  G11B20/1833 ,  G11B2020/185 ,  G11B2220/2516 ,  G11B2220/415

摘要： Various embodiments of the present invention provide systems and methods for selecting between pre-coding and non-pre-coding. As an example, a data processing circuit is disclosed that includes: a first data detector circuit, a second data detector circuit, a first comparator circuit, a second comparator circuit, and a pre-code selection circuit. The first data detector circuit is selectably configurable to operate in a pre-coded state, and operable to apply a data detection algorithm on a data input to yield a first detected output. The second data detector circuit operable to apply the data detection algorithm to the data input to yield a second detected output without compensating for pre-coding. The first comparator circuit operable to compare the first detected output against a known input to yield a first comparison value, and the second comparator circuit operable to compare the second detected output against the known input to yield a second comparison value. The pre-code selection circuit is operable to determine a selectable configuration of the first data detector circuit based at least in part on the first comparison value and the second comparison value.

摘要翻译： 本发明的各种实施例提供了用于在预编码和非预编码之间进行选择的系统和方法。 作为示例，公开了一种数据处理电路，其包括：第一数据检测器电路，第二数据检测器电路，第一比较器电路，第二比较器电路和预代码选择电路。 第一数据检测器电路可选择地被配置为以预编码状态操作，并且可操作以将数据检测算法应用于数据输入以产生第一检测输出。 第二数据检测器电路可操作以将数据检测算法应用于数据输入以产生第二检测输出而不补偿预编码。 第一比较器电路可操作以将第一检测输出与已知输入进行比较以产生第一比较值，并且第二比较器电路可操作以将第二检测输出与已知输入进行比较以产生第二比较值。 预编码选择电路可操作以至少部分地基于第一比较值和第二比较值来确定第一数据检测器电路的可选配置。