Patent 8975935 was granted and assigned to Hrl Laboratories, Llc on March, 2015 by the United States Patent and Trademark Office.
A delay circuit includes a first flip flop (FF), a transistor connected to the FF, a first resistor capacitor circuit (RCC) coupled to the transistor and between a voltage and a ground, a first comparator for comparing an output of the first RCC and a voltage reference, gate logic coupled to the input line and to an output of the first FF and to a second FF, a second transistor coupled to the second FF, a second RCC coupled to the second transistor and between the voltage and ground, a second comparator for comparing an output of the second RCC and the voltage reference and coupled to the first FF, and output logic coupled to the first and second comparators.