Patent ID: 11894864
Assignee: SILICON LABORATORIES INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. An apparatus comprising:
an audio sensor to receive an audio signal;
at least one amplifier to provide gain to the audio signal;
a noise shaping sigma-delta analog-to digital converter (ADC) coupled to the at least one amplifier, the noise shaping sigma-delta ADC comprising:
a filter to receive an analog representation of the audio signal and generate a filtered signal; and
a punctured quantizer coupled to the filter to receive the filtered signal and quantize the filtered signal to a digital output, the punctured quantizer having more than two levels, wherein the more than two levels have a non-linear relationship; and

a controller coupled to the noise shaping sigma-delta ADC, the controller to receive the digital output and perform an operation based at least in part on the digital output.