Systems and methods for variance dependent normalization for branch metric calculation
    21.
    发明授权
    Systems and methods for variance dependent normalization for branch metric calculation 有权
    用于分支度量计算的方差依赖规范化的系统和方法

    公开(公告)号:US08667039B2

    公开(公告)日:2014-03-04

    申请号:US12947947

    申请日:2010-11-17

    IPC分类号: G06F17/10

    CPC分类号: H04L25/03299 H04L25/03993

    摘要: Various embodiments of the present invention provide systems and methods for data processing. As an example, a data processing circuit is disclosed that includes: a noise predictive filter circuit, a scaling factor adaptation circuit, and a scaling factor application circuit. The noise predictive filter circuit is operable to perform a noise predictive filtering process on a data input based on a filter tap to yield a noise filtered output. The scaling factor adaptation circuit is operable to calculate a scaling factor based at least in part on a derivative of the noise filtered output. The scaling factor application circuit is operable to apply the scaling factor to scale the noise filtered output.

    摘要翻译: 本发明的各种实施例提供了用于数据处理的系统和方法。 作为示例,公开了一种数据处理电路,其包括:噪声预测滤波器电路,比例因子适配电路和缩放因子应用电路。 噪声预测滤波器电路可操作以对基于滤波器抽头的数据输入执行噪声预测滤波处理,以产生噪声滤波输出。 缩放因子适配电路可用于至少部分地基于噪声滤波输出的导数来计算缩放因子。 缩放因子应用电路可操作以应用缩放因子来缩放噪声滤波的输出。

    Systems and Methods for Dynamic Scaling in a Data Decoding System
    22.
    发明申请
    Systems and Methods for Dynamic Scaling in a Data Decoding System 有权
    数据解码系统中动态缩放的系统和方法

    公开(公告)号:US20110258508A1

    公开(公告)日:2011-10-20

    申请号:US12763050

    申请日:2010-04-19

    IPC分类号: H03M13/05 G06F11/10

    摘要: Various embodiments of the present invention provide systems and methods for data processing. As an example, a data processing circuit is disclosed that includes a decoder circuit and a scalar circuit. The decoder circuit is operable to perform a data decoding algorithm by processing at least one decoder message, and the scalar circuit is operable to multiply the decoder message by a variable scalar value.

    摘要翻译: 本发明的各种实施例提供了用于数据处理的系统和方法。 作为示例,公开了包括解码器电路和标量电路的数据处理电路。 解码器电路可操作以通过处理至少一个解码器消息来执行数据解码算法,并且标量电路可操作以将解码器消息乘以可变标量值。