Nonlinear filter
First Claim
Patent Images
1. An analog to digital converter system comprising:
- an analog to digital converter (ADC); and
an adaptive filter coupled to the ADC;
wherein;
the adaptive filter includes a nonlinear filter having a filter characteristic that is adaptable;
the adaptive filter is coupled to the ADC in a feedforward configuration; and
the adaptive filter is trained to reduce an error of an output of the ADC.
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Abstract
A system and a method are disclosed for converting analog signal to digital. An analog to digital converter system comprises an analog to digital converter (ADC) and an adaptive filter coupled to the ADC, wherein the adaptive filter is coupled to the ADC in a feedforward configuration. A method of generating a digital signal based on an analog signal comprises applying the analog signal to an analog to digital converter (ADC) to generate an ADC output and sending the ADC output to an adaptive filter, wherein the adaptive filter is coupled to the ADC in a feedforward configuration.
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Citations
20 Claims
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1. An analog to digital converter system comprising:
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an analog to digital converter (ADC); and an adaptive filter coupled to the ADC;
wherein;the adaptive filter includes a nonlinear filter having a filter characteristic that is adaptable; the adaptive filter is coupled to the ADC in a feedforward configuration; and
the adaptive filter is trained to reduce an error of an output of the ADC. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An analog to digital converter system comprising:
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an analog to digital converter (ADC); and an adaptive filter coupled to the ADC;
whereinthe adaptive filter is coupled to the ADC in a feedforward configuration; wherein the adaptive filter is a nonlinear filter that comprises; a plurality of linear filters each having a filter output; a plurality of nonlinear elements each connected to one of the plurality of linear filters; and a combination network connected to the plurality of nonlinear elements;
wherein;the nonlinear elements are used to produce nonlinear effects and generate a plurality of nonlinear outputs; and the combination network combines the nonlinear outputs. - View Dependent Claims (9, 10)
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11. A method of generating a digital signal based on an analog signal, comprising:
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applying the analog signal to an analog to digital converter (ADC) to generate an ADC output; sending the ADC output to an adaptive filter;
whereinthe adaptive filter includes a nonlinear filter having a filter characteristic that is adaptable; the adaptive filter is coupled to the ADC in a feedforward configuration; and
the adaptive filter is trained to reduce an error of an output of the ADC. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A method of generating a digital signal based on an analog signal, comprising:
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applying the analog signal to an analog to digital converter (ADC) to generate an ADC output; and sending the ADC output to an adaptive filter;
wherein;the adaptive filter is coupled to the ADC in a feedforward configuration; the adaptive filter is a nonlinear filter that comprises; a plurality of linear filters each having a filter output; a plurality of nonlinear elements each connected to one of the plurality of linear filters; and a combination network connected to the plurality of nonlinear elements;
wherein;the nonlinear elements are used to produce nonlinear effects and generate a plurality of nonlinear outputs; and the combination network combines the nonlinear outputs. - View Dependent Claims (19, 20)
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Specification