Molecular Devices Corporation

Benjamin Blizard

Michael G Youngquist

Michael Youngquist

Kachoi Tang

Krithika Sridhar

A data acquisition system coupled to a mains power source and a method of operating the data acquisition system are disclosed. A test probe is configured to be coupled to a subject, and an analog to digital converter converts a signal from the test probe to samples. A noise replica generator generates estimates of noise in the samples, and a noise removal block removes from each sample an estimate of noise therein. When the subject is undergoing stimulation, the samples are provided to only the noise removal block. When the subject is not undergoing stimulation, the samples are provided to both the noise replica generator and the noise removal block.

System and method for controlling learning period for adaptive noise cancellation

A data acquisition system and a method of operating the data acquisition system are disclosed. A zero crossing detector generates a mains cycle start signal in accordance with a power line frequency of a mains power source. An analog-to-digital converter samples a signal provided by a test probe and generates data samples at a sampling rate. A noise replica generator generates noise replicas from the data samples at a replica generation rate, and noise estimates from the noise replicas at the sampling rate, wherein the noise replica generation rate is less than the sampling frequency. A noise removal module removes each noise estimate from a corresponding data sample.

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Oakland, CA, United States of America

Benjamin Blizard