CPC G10L 21/0232 (2013.01) [G10L 15/05 (2013.01); G10L 15/16 (2013.01)] | 12 Claims |
1. An analog signal processing system, comprising:
an analog vibration sensor;
a first analog filter bank for receiving a signal from the vibration sensor, the first filter bank comprising:
a plurality of programmable analog bandpass filters configured for feature extraction, wherein each bandpass filter is a continuous-time bandpass filter comprising:
charge trap transistors as programmable elements for tuning corner frequencies of the bandpass filter; and
at least one analog neural network configured to receive extracted features from the first filter bank and classify the extracted features.
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