发明授权
US08269538B2 Signal alignment system 有权
信号对准系统

  • 专利标题: Signal alignment system
  • 专利标题(中): 信号对准系统
  • 申请号: US12768513
    申请日: 2010-04-27
  • 公开(公告)号: US08269538B2
    公开(公告)日: 2012-09-18
  • 发明人: Mahmudul Hassan
  • 申请人: Mahmudul Hassan
  • 申请人地址: US CA Santa Clara
  • 专利权人: MoSys, Inc.
  • 当前专利权人: MoSys, Inc.
  • 当前专利权人地址: US CA Santa Clara
  • 代理机构: Bever, Hoffman & Harms LLP
  • 代理商 E. Eric Hoffman
  • 主分类号: H03L7/00
  • IPC分类号: H03L7/00
Signal alignment system
摘要:
Through the use of a multi-step sweep, the present invention is capable of increasing the speed and improving the error resistance of a signal alignment. In a specific embodiment of the invention, a method for the signal alignment of a target signal and an adjustable signal is disclosed. The target signal is sampled using three or more phase shifted versions of the adjustable signal to obtain a group of target signal state values. Next, through reference to the group of target signal state values it is determined that an edge of the target signal lies between a first phase shifted version and a second consecutive phase shifted version. In response, the first phase shifted version is selected as the starting point for a second sweep. During the second sweep, the phase of the first phase shifted version is sequentially adjusted in relatively small incremental steps to minimize the phase difference relative to the target signal.
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