发明授权
- 专利标题： Frequency transposition method and device, in particular for the control of the transmission power of a cellular mobile telephone
- 专利标题（中）： 频率转置方法和装置，特别是用于控制蜂窝移动电话的发射功率
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申请号： US11053179申请日： 2005-02-08
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公开(公告)号： US07738597B2公开(公告)日： 2010-06-15
- 发明人: Lydi Smaini , Patrick Cerisier , Philippe Gouessant
- 申请人： Lydi Smaini , Patrick Cerisier , Philippe Gouessant
- 申请人地址： NL Amsterdam
- 专利权人： STMicroelectronics
- 当前专利权人： STMicroelectronics
- 当前专利权人地址： NL Amsterdam
- 代理机构： Gardere Wynne Sewell LLP
- 优先权： EP04290333 20040210
- 主分类号： H03K9/00
- IPC分类号： H03K9/00
摘要：
A frequency transposition device including an input terminal for receiving an incident signal SI and a modulator of the one-bit delta-sigma type MDU connected to the input terminal. A generator MGN provides a periodic auxiliary signal SAX with a frequency equal to a desired transposition frequency. A frequency transposer of the Gilbert cell type has a signal input BES connected to the output of the generator, a control input BCO connected to the output of the delta-sigma modulator MDU, and an output BS delivering a transposed signal STR.
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