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1.发明授权Method and apparatus for implementing a multiple constraint length Viterbi decoder 有权用于实现多约束长度维特比解码器的方法和装置公开(公告)号：US07260154B1
公开(公告)日：2007-08-21
申请号：US10331707
申请日：2002-12-30
IPC分类号： H04L5/12
CPC分类号： H03M13/4169 , H03M13/3961 , H03M13/41 , H03M13/6508 , H03M13/6516 , H04L1/0054 , H04L1/0059
摘要： A Viterbi decoder capable of decoding a code having a maximum constraint length of Lmax is disclosed. The Viterbi decoder includes an initializer unit that initializes selected states of an encoder during an initial time period to allow the Viterbi decoder to also decode codes having a constraint length less than Lmax.
摘要翻译： 公开了一种能够解码最大约束长度为L最大值的码的维特比解码器。 维特比解码器包括初始化单元，其在初始时间段期间初始化编码器的选择状态，以允许维特比解码器还解码具有小于最大值的约束长度的码。
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公开(公告)号：US07173985B1
公开(公告)日：2007-02-06
申请号：US10212487
申请日：2002-08-05
CPC分类号： H03M13/4169 , H03M13/41 , H03M13/6583
摘要： The Viterbi decoder includes a branch metric processor that determines branch metrics for states of an encoder in a time period. The Viterbi decoder includes a survivor processor that selects survivor paths between states of the encoder in consecutive time periods. The Viterbi decoder includes a normalization unit that normalizes state metrics of the states of the encoder in the time period by subtracting a constant.
摘要翻译： 维特比解码器包括分支度量处理器，其在一段时间段内确定编码器的状态的分支度量。 维特比解码器包括在连续时间段内选择编码器状态之间的幸存路径的幸存处理器。 维特比解码器包括归一化单元，其通过减去常数来对该时间段内的编码器的状态的状态度量进行归一化。
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3.发明授权Method and apparatus for implementing a traceback processor for trellis decoding in a Viterbi decoder 有权用于在维特比解码器中实现用于格状解码的回溯处理器的方法和装置公开(公告)号：US07564930B1
公开(公告)日：2009-07-21
申请号：US10869167
申请日：2004-06-16
IPC分类号： H04L27/06
CPC分类号： H03M13/4169 , H03M13/41 , H03M13/4107 , H03M13/6561 , H03M13/6583
摘要： A Viterbi decoder includes a state metrics processor that generates survivor information. The Viterbi decoder includes a traceback processor having a traceback engine that tracks a state of a traceback operation in response to the survivor information.
摘要翻译： 维特比解码器包括产生幸存者信息的状态度量处理器。 维特比解码器包括具有回溯引擎的回溯处理器，其追踪响应于幸存者信息的回溯操作的状态。
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