Patent ID: 6442378
Filing Date: 2002-08-27
Classification: H03M

Abstract:
A power level determination device, comprising:a peak detector, which detects a pulse-type signal at an input thereof and provides a non-pulse-type signal at an output thereof; N comparators, where N is an integer, each of the N comparators having an output, a first input coupled to the output of the peak detector, and a second input coupled to a respectively different threshold voltage; N exclusive-OR components, a first one of the N exclusive-OR components being coupled to ground and to the output of a first one of the N comparators, each of the remaining Nâˆ’1 exclusive-OR components being coupled to the outputs of a respectively different pair of the N comparators, so that at any given time, a single one of the N exclusive-OR components has an output signal of a logic level that is different from the logic level of the outputs of the remaining Nâˆ’1 exclusive-OR components; and N circuits coupled to respective ones of the N exclusive-OR components, each of the N circuits providing a respectively different predetermined analog output voltage that is independent of the respective threshold voltage corresponding to that one of the N circuits, if the exclusive-OR component to which that circuit is coupled is the single one of the N exclusive-OR components, as an indication of a power level of the pulse-type signal.