Noise mitigation for biosignals

A sensor system, comprising:

• a bio sensor stage including one or more types of sensors configured for detecting electrical biosignals, including at least one of an electroencephalography (EEG) sensor for detecting electrical brain activity, an electrocardiogram (ECG) sensor for detecting electrical heart activity, an electromyogram (EMG) sensor for detecting electrical muscle activity, and an electrooculography (EOG) sensor for detecting electrical eye activity;
• a noise sensor stage configured to detect an analog noise signal that originates external to the system;
• and
• a microcontroller configured to
• in response to determining that the analog noise signal is present contemporaneously with the analog bio signal, detect a noise signal type associated with the analog noise signal, select one or more noise mitigation actions from a plurality of possible noise mitigation actions that can be used to mitigate the analog noise signal, wherein the selection is based at least in part on the detected noise signal type, and execute the one or more noise mitigation actions, and
• in response to determining that no analog noise signal is present contemporaneously with an analog bio signal, record the analog bio signal in a memory.

A computer program product including one or more non-transitory machine-readable mediums encoded with instructions that when executed by one or more processors cause a process to be carried out for noise mitigation in a bio sensor system, the process comprising:

• receiving a signal representing an analog bio signal;
• in response to determining that an analog noise signal is present contemporaneously with the analog bio signal, detecting a noise signal type associated with the analog noise signal, selecting one or more noise mitigation actions from a plurality of possible noise mitigation actions that can be used to mitigate the analog noise signal;
• wherein the selection is based at least in part on the detected noise signal type, and executing the one or more noise mitigation actions, wherein the analog noise signal originates external to the bio sensor system;
• and
• in response to determining that no analog noise signal is present contemporaneously with the analog bio signal, recording the analog bio signal in a memory.