Invention Grant
US07991103B2 Systems and methods for data recovery in an input circuit receiving digital data at a high rate 有权
在高速率接收数字数据的输入电路中进行数据恢复的系统和方法

  • Patent Title: Systems and methods for data recovery in an input circuit receiving digital data at a high rate
  • Patent Title (中): 在高速率接收数字数据的输入电路中进行数据恢复的系统和方法
  • Application No.: US11901782
    Application Date: 2007-09-19
  • Publication No.: US07991103B2
    Publication Date: 2011-08-02
  • Inventor: Hongjiang Song
  • Applicant: Hongjiang Song
  • Applicant Address: US CA Santa Clara
  • Assignee: Intel Corporation
  • Current Assignee: Intel Corporation
  • Current Assignee Address: US CA Santa Clara
  • Agency: Schubert Law Group, PLLC
  • Agent Jeffrey S. Schubert
  • Main IPC: H03D3/24
  • IPC: H03D3/24 H04L7/00
Systems and methods for data recovery in an input circuit receiving digital data at a high rate
Abstract:
Embodiments include systems and methods for recovery of data from an incoming digital data stream. Embodiments comprise a fine tracking loop to track the data when the phase between the incoming data and the receiver clock varies relatively slowly. Embodiments comprise a fast tracking loop performs to track the data when the phase between the incoming data and the receiver clock varies rapidly. The fine tracking loop adjusts the phase of a receiver clock to track the data eye of the data. The fast tracking loop over-samples the data and then chooses the sample that best represents the data. In some embodiments, the data recovery circuit can switch between receiving data from the fine tracking loop and receiving data from the fast tracking loop.
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