Invention Grant
US07966505B2 Method and apparatus for power reduction in iterative decoders 有权
迭代解码器功率降低的方法和装置

  • Patent Title: Method and apparatus for power reduction in iterative decoders
  • Patent Title (中): 迭代解码器功率降低的方法和装置
  • Application No.: US11921486
    Application Date: 2005-06-27
  • Publication No.: US07966505B2
    Publication Date: 2011-06-21
  • Inventor: Wen GaoJoshua Lawrence Koslov
  • Applicant: Wen GaoJoshua Lawrence Koslov
  • Applicant Address: FR Boulogne-Billancourt
  • Assignee: Thomson Licensing
  • Current Assignee: Thomson Licensing
  • Current Assignee Address: FR Boulogne-Billancourt
  • Agent Robert D. Shedd; Jeffrey M. Navon
  • International Application: PCT/US2005/023005 WO 20050627
  • International Announcement: WO2007/001304 WO 20070104
  • Main IPC: H03M13/37
  • IPC: H03M13/37 G06F11/00
Method 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. The apparatus includes a memory device and an iteration termination device. The memory device is for storing a bit number difference indicating a number of bits that are different between a decoded codeword for a current iteration and a decoded codeword for a previous iteration, for each iteration of the iterative decoder prior to a maximum number of iterations. The iteration termination device is for comparing the bit number difference to a pre-specified bit number difference threshold value, incrementing a confidence value when the bit number difference exceeds the pre-specified bit number difference threshold value, and terminating further iterations of the iterative decoder when the confidence value exceeds a pre-specified confidence threshold value.
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