Invention Grant
US07697635B2 Method and apparatus for controlling the decision point of a receiver for digital communication signals 有权
用于控制数字通信信号的接收机的判定点的方法和装置

  • Patent Title: Method and apparatus for controlling the decision point of a receiver for digital communication signals
  • Patent Title (中): 用于控制数字通信信号的接收机的判定点的方法和装置
  • Application No.: US11546344
    Application Date: 2006-10-12
  • Publication No.: US07697635B2
    Publication Date: 2010-04-13
  • Inventor: Christoph Haslach
  • Applicant: Christoph Haslach
  • Applicant Address: FR Paris
  • Assignee: Alcatel
  • Current Assignee: Alcatel
  • Current Assignee Address: FR Paris
  • Agency: Carmen Patti Law Group, LLC
  • Priority: EP05292228 20051021
  • Main IPC: H04L25/06
  • IPC: H04L25/06
Method and apparatus for controlling the decision point of a receiver for digital communication signals
Abstract:
A receiver for a digital communication signal has a first decision gate (DGa), which has a first decision threshold (xd) for outputting a first decision signal, a second decision gate (DGb), which has a second decision threshold (xm) for outputting a second decision signal, a counter (CNT) for counting events where the first and second decision signals of the first and second decision gates (DGa, DGb) differ from each other, and a controller (PROC) capable of controlling the decision thresholds of said first and second decision gates in accordance with count values delivered by said counter. The controller (PROC) determines an initial decision threshold value by performing a statistical analysis of the received signal and setting the decision threshold such that the distribution of logical ‘0’ and logical ‘1’ in the decided signal corresponds to the expected distribution, which is in typically 50%/50%.
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