发明授权
- 专利标题: Frequency modulation circuit
- 专利标题(中): 频率调制电路
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申请号: US11000224申请日: 2004-12-01
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公开(公告)号: US07233215B2公开(公告)日: 2007-06-19
- 发明人: Tsuyoshi Ebuchi , Takefumi Yoshikawa , Yukio Arima
- 申请人: Tsuyoshi Ebuchi , Takefumi Yoshikawa , Yukio Arima
- 申请人地址: JP Osaka
- 专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址: JP Osaka
- 代理机构: McDermott Will & Emery LLP
- 优先权: JP2003-422652 20031219
- 主分类号: H03C3/00
- IPC分类号: H03C3/00
摘要:
The frequency modulation circuit includes: a phase shift section for receiving a multiphase clock signal composed of a plurality of clock signals having a predetermined phase difference therebetween and shifting the phase of the multiphase clock signal; a clock selection section for selecting a clock signal constituting the multiphase clock signal output from the phase shift section; and a modulation control section for controlling the phase shift section and the clock selection section so that a clock signal having a frequency different from the frequency of the multiphase clock signal input into the phase shift section is output from the clock selection section.
公开/授权文献
- US20050135505A1 Frequency modulation circuit 公开/授权日:2005-06-23
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