Invention Application
US20090249160A1 METHODS AND APPARATUS FOR POWER REDUCTION IN ITERATIVE DECODERS 有权
在迭代解码器中减少功率的方法和装置

  • Patent Title: METHODS AND APPARATUS FOR POWER REDUCTION IN ITERATIVE DECODERS
  • Patent Title (中): 在迭代解码器中减少功率的方法和装置
  • Application No.: US11921494
    Application Date: 2005-06-27
  • Publication No.: US20090249160A1
    Publication Date: 2009-10-01
  • Inventor: Wen GaoJoshua Lawrence Koslov
  • Applicant: Wen GaoJoshua Lawrence Koslov
  • International Application: PCT/US2005/023007 WO 20050627
  • Main IPC: H03M13/29
  • IPC: H03M13/29 G06F11/10
METHODS AND APPARATUS FOR POWER REDUCTION IN ITERATIVE DECODERS
Abstract:
There are provided a method, an apparatus and a computer program product for reducing power consumption in an iterative decoder, for example, for low-density parity-check (LDPC) codes or turbo codes. The apparatus includes a memory device and an iteration termination device. The memory device is for storing a decoded codeword for a current iteration, for each iteration of the iterative decoder prior to a maximum number of iterations. The iteration termination device is for comparing the decoded codeword for the current iteration to a previously stored decoded codeword for the previous iteration, incrementing a confidence value when the decoded codeword for the current iteration matches the previously stored decoded codeword for the previous iteration, and terminating further iterations of the iterative decoder when the confidence value exceeds a pre-specified threshold value.
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