Patent ID: 7193544
Filing Date: 2007-03-20
Classification: H03M

Abstract:
1. An apparatus for adaptive analog-to-digital conversion, said apparatus comprising: a frequency modulator unit for changing an input analog signal into a modulated analog signal with a frequency spectrum in a bandwidth of interest; a parallel self-adapting delta sigma analog to digital signal conversion unit operatively connected to said frequency modulator unit, said parallel self-adapting delta sigma conversion unit operating in response to a control signal from a controller for converting said modulated analog signal into a digital signal said self-adapting delta signal conversion unit including a code generator controlled by said controller and a plurality of substantially like self-adapting delta sigma channels connected in parallel between said frequency modulation and a digital signal adder unit, said digital signal adder unit providing a digital output signal; said controller being operatively connected to said frequency modulator unit and said plurality of parallel self-adapting delta-sigma signal channels of said delta sigma conversion unit, and being operable for adjusting at least one parameter relating to a frequency characteristic of said frequency modulator unit and/or said plurality of parallel self-adapting delta sigma channels of said delta sigma conversion unit.