Patent ID: 8767877
Filing Date: 2014-07-01
Classification: H04W,Y02D

Abstract:
1. A method for controlling a receiver circuit, the method comprising: demodulating and filtering a received signal; comparing an amplitude value of the demodulated and filtered signal with thresholds of a window comparator; comparing a time of a zero crossing of the demodulated and filtered signal with time thresholds of a time window via a comparison unit to determine whether the zero crossing occurs within the time window; combining logically a first output value of the window comparator and a second output value of the comparison unit, the first output value based on the comparing the amplitude value of the demodulated and filtered signal with thresholds of the window comparator and the second output value based on the comparing the time of the zero crossing of the demodulated and filtered signal with the time thresholds of the time window; and turning off, based on the combining logically the first output value of the window comparator and the second output value of the comparison unit, the receiver circuit if the amplitude value is determined to be outside a window formed by the thresholds of the window comparator within a period of time or a zero crossing is determined to be outside the time window within the period of time.