Detector with Soft Pruning
    31.
    发明申请
    Detector with Soft Pruning 有权
    检测器软修剪

    公开(公告)号:US20130111306A1

    公开(公告)日:2013-05-02

    申请号:US13283549

    申请日:2011-10-27

    IPC分类号: H03M13/25 G06F11/10

    摘要: Various embodiments of the present invention provide apparatuses, systems and methods for data detection in a detector with soft pruning. For example, a data detector is disclosed that includes a branch metric calculator operable to calculate branch metrics for transitions between states in a trellis for the data detector, and a branch metric offset circuit operable to apply branch metric offsets to the branch metrics to yield soft pruned branch metrics. The branch metric offsets comprise a range of probability values from zero percent to one hundred percent.

    摘要翻译: 本发明的各种实施例提供了具有软修剪的检测器中的数据检测的装置,系统和方法。 例如,公开了一种数据检测器,其包括分支度量计算器,其可操作以计算用于数据检测器的网格中的状态之间的转换的分支度量;以及分支度量偏移电路,其可操作以将分支度量偏移应用于分支度量以产生软 修剪分支指标。 分支度量偏移包括从零百分之一百百分率的概率值的范围。

    Method and apparatus for encoding and precoding digital data within modulation code constraints
    32.
    发明申请
    Method and apparatus for encoding and precoding digital data within modulation code constraints 失效
    用于在调制码约束内对数字数据进行编码和预编码的方法和装置

    公开(公告)号:US20060174185A1

    公开(公告)日:2006-08-03

    申请号:US11050208

    申请日:2005-02-03

    IPC分类号: G06F11/00 H03M13/00

    CPC分类号: G11B20/1426 G11B20/10009

    摘要: Embodiments of the invention include a method and apparatus for encoding data and a system for transmitting and/or storing data, in which the data is encoded and precoded in a manner that does not violate previously established data constraints, such as modulation encoding constraints. The method includes the steps of modulation encoding the data using a modulation code defined by at least one modulation constraint, parity encoding the modulation encoded information, and preceding the encoded information. The precoding step either partially precodes information bits and precodes parity bits, precodes information bits but not parity bits, or precodes both information bits and parity bits in such a manner that does not violate modulation constraints. Also, the parity encoding step can be performed in such a manner that does not violate modulation code constraints.

    摘要翻译: 本发明的实施例包括用于编码数据的方法和装置以及用于发送和/或存储数据的系统,其中以不违反先前建立的数据约束(诸如调制编码约束)的方式对数据进行编码和预编码。 该方法包括以下步骤:使用由至少一个调制约束定义的调制码,对调制编码信息进行奇偶校验,以及编码信息之前对数据进行调制编码。 预编码步骤部分地对信息比特进行预编码,并且以不违反调制约束的方式预编码奇偶校验位,预编码信息比特,而不是奇偶校验比特,或预编码信息比特和奇偶校验比特。 此外,奇偶校验编码步骤可以以不违反调制码约束的方式执行。