Patent ID: 11916582
Assignee: MICROCHIP TECHNOLOGY INCORPORATED
Field: Computer technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 17:
18. A sensor circuit to determine an acquisition configuration for operation of a sensor system, comprising:
a sensor interface for obtaining a sensor receive signal from the sensor system without a stimulus signal being applied to the sensor system;
an A/D converter to determine a digital sensor receive signal from the sensor receive signal by A/D conversion of the sensor receive signal at a predefined noise scan frequency;
a decimation circuit, to determine a plurality of decimated digital sensor receive signals by integer decimation of the digital sensor receive signal using two or more decimation rates that differ from each other, wherein respective ones of the two or more decimation rates are associated with a respective one of multiple candidate acquisition configurations for the sensor system;
a noise evaluation circuit, to, in response to determining the plurality of decimated digital sensor receive signals, determine one or more noise measures for multiple candidate acquisition configurations by evaluating one or more of the plurality of decimated digital receive signals; and
a configuration circuit, to determine the acquisition configuration for operation of the sensor system from the multiple candidate acquisition configurations using the one or more noise measures; wherein
determining the acquisition configuration comprises selecting a preferred noise measure from the one or more noise measures and selecting a first candidate acquisition configuration of the candidate acquisition configurations, which first candidate acquisition configuration is associated with the preferred noise measure as the acquisition configuration.