Signal mixing method and mixer
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United States of America Patent
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Jul 11, 2017
Issued Date -
N/A
app pub date -
Apr 29, 2016
filing date -
May 7, 2015
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Abstract
A mixer includes a weighting module configured to receive an input signal and to weight the input signal with a set of weighting factors, in order to generate a set of weighted signals; and a switching module configured to receive the set of weighted signals and at least a portion of 2N periodic control signals, wherein each of the periodic control signals has a period of 2N*Tvco which contains a pulse with a pulse width not greater than Tvco; wherein the pulses of the 2N periodic control signals do not overlap with each other; and whereby the switching module outputs the set of weighted signals cyclically, under the control of the received periodic control signals, to generate an output signal with a frequency shift of m/(2N*Tvco), where Tvco denotes a period of a VCO signal, N and m are integers, 0
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