发明授权
- 专利标题： Multicarrier communication apparatus, integrated circuit, and multicarrier communication method
- 专利标题（中）： 多载波通信装置，集成电路和多载波通信方法
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申请号： US11478727申请日： 2006-07-03
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公开(公告)号： US07978772B2公开(公告)日： 2011-07-12
- 发明人: Hisao Koga , Nobutaka Kodama
- 申请人： Hisao Koga , Nobutaka Kodama
- 申请人地址： JP Osaka
- 专利权人： Panasonic Corporation
- 当前专利权人： Panasonic Corporation
- 当前专利权人地址： JP Osaka
- 代理机构： Dickinson Wright PLLC
- 优先权： JPP.2005-196141 20050705
- 主分类号： H04K1/10
- IPC分类号： H04K1/10
摘要：
A digital transmission signal from a digital signal processing unit is converted to an analog signal in an analog circuit, and is transmitted from transmission lines via a communication transformer. The digital signal processing unit includes a time carrier detector that detects a carrier by using a time waveform of a reception signal and a frequency carrier detector that detects a carrier by using frequency characteristics of the reception signal. Under the control of a controller, carrier detection is performed by switching between the time carrier detector and the frequency carrier detector for operation.
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