A noise canceller for removing noise components from an input signal includes a noise detector which detects a noise component of the input signal and outputs a hold signal which corresponds to duration of the noise component, a first hold circuit which outputs a sample value while holding the input signal during the duration of the noise component, an adder which adds a compensating signal to the sample value, a prediction filter which determines predicted values by performing filter operations on the outputs from the adder, a second hold circuit which outputs a predicted hold value while holding the predicted value during the duration of the noise component, a subtractor which subtracts the predicted hold value from the predicted value and outputs a result as the compensating signal, and a switch which supplies the compensating signal to the adder.

 
Web www.patentalert.com

< Distributed cardiac activity monitoring with selective filtering

< Frequency diverse single carrier modulation for robust communication over in-premises wiring

> Adaptive equalizer

> Detection of tachyarrhythmia termination

~ 00287