发明授权
- 专利标题: Carrier synchronizing circuit and carrier synchronizing method
- 专利标题(中): 载波同步电路和载波同步方法
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申请号: US12104817申请日: 2008-04-17
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公开(公告)号: US08170170B2公开(公告)日: 2012-05-01
- 发明人: Hideyuki Matsumoto , Tetsuhiro Futami , Koji Naniwada , Yuichi Hirayama
- 申请人: Hideyuki Matsumoto , Tetsuhiro Futami , Koji Naniwada , Yuichi Hirayama
- 申请人地址: JP Tokyo
- 专利权人: Sony Corporation
- 当前专利权人: Sony Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Frommer Lawrence & Haug LLP
- 代理商 William S. Frommer; Paul A. Levy
- 优先权: JPP2007-111328 20070420
- 主分类号: H03D3/24
- IPC分类号: H03D3/24
摘要:
Disclosed herein is a carrier synchronizing circuit including at least frequency synchronizing means and phase synchronizing means. The phase synchronizing means includes residual frequency error detecting means for detecting a residual frequency error after a frequency synchronizing process by the frequency synchronizing means and supplying the residual frequency error to the frequency synchronizing means, and the frequency synchronizing means performs frequency pull-in for the residual frequency error supplied from the residual frequency error detecting means after first timing.
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