发明名称 Nyquist band frequency translation
摘要 <p>There is disclosed a method of processing a signal which comprises sampling the signal at a sampling frequency. Discrete time components at the sampling interval are thereby generated. Inverting alternate ones of the discrete time components thereby translates a frequency component of the sampled signal in one part of the Nyquist band to another part of the Nyquist band. The step of inverting alternate ones of the discrete time components is shown to comprise multiplying the sampled signal by a reference signal at half the sampling frequency and having discrete time components at the sampling interval. Circuitry for implementing the method is also disclosed. &lt;IMAGE&gt;</p>
申请公布号 EP1032136(A1) 申请公布日期 2000.08.30
申请号 EP19990301398 申请日期 1999.02.25
申请人 LUCENT TECHNOLOGIES INC. 发明人 MC CARTHY, MICHAEL
分类号 H04J1/04;H03D7/00;H04B1/26;(IPC1-7):H04B1/26 主分类号 H04J1/04
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