Modulated dither signal

Details Modulated dither signal Modulated dither signal

H - Electricity

03

M

H03M 1/12 (2006.01) G01R 19/25 (2006.01) G01R 21/133 (2006.01) H03M 1/20 (2006.01)

Patent

CA 2116157

ABSTRACT MODULATED DITHER SIGNAL A system for analogue to digital conversion comprising a means (4) for receiving an input analogue signal, a dither means for adding a dither signal and an analogue to digital converter (2) for converting the combined input signal and dither signal to a digital value, characterised in that the dither means provides a dither signal of a form comprising a first periodic dither signal having superimposed and being shaped by a second signal having at least one component which varies the first periodic dither signal over at least one quantisation interval of the analogue to digital converter. Fig. 1

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