Method and system for signal synthesis
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United States of America Patent
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Jun 30, 2015
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Nov 14, 2013
app pub date -
Dec 26, 2011
filing date -
Jan 3, 2011
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Abstract
The invention describes methods and systems for digital synthesis of electric signals. According to the invention, one or more bit-patterns are provided, each indicative of a rectangular waveform having a characteristic frequency. Further to determining a selected signal frequency to be synthesized, a selected bit-pattern associated therewith is obtained. Bits of the selected bit-pattern are cyclically serialized to generate a substantially rectangular waveform signal comprising the characteristic frequency. Then, the signal is filtered to suppress spurious frequencies outside a certain unfiltered frequency band which corresponds to the selected bit-pattern to thereby obtain a filtered signal with prominent frequency component corresponding to the selected signal frequency.
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