Electronic device for generating a local oscillator signal having a frequency equal to a fractional part of a fundamental frequency
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United States of America Patent
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May 22, 2012
Grant Date -
Feb 18, 2010
app pub date -
Mar 1, 2006
filing date -
Mar 8, 2005
priority date (Note) -
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Abstract
An electronic device (ED) is intended for generating a local oscillator signal having a chosen frequency FLO from a main signal outputted by a voltage-controlled oscillator (VCO) and having a fundamental frequency FVCO and harmonics thereof. This electronic device (ED) comprises a frequency division means (D1, D2) arranged to divide the frequency of a signal by a chosen factor N and a filter means (F1, F2) arranged to select a chosen Mth order harmonic of a signal, these frequency division means (D1, D2; D) and filter means (F1, F2) being arranged to process the main signal in common to output the local oscillator signal with a chosen frequency FLO equal to MxFVCO/N.
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