Method and apparatus for externally aided self adjusting real time clock
View Patent ↗A method and apparatus for externally aided self adjusting real time clock have been disclosed. A circuit having a pulse train output is coupled to an adjusting circuit, a real-time clock is coupled to the adjusting circuit, and a proportional integral derivative time processor is coupled to the adjusting circuit, and where the adjusting circuit affects the pulse train output.
1. An apparatus comprising:
a circuit having a pulse train output;
an adjusting circuit having an input, a control input, and an output, said adjusting circuit input coupled to said pulse train output;
a real-time clock having an input, a plurality of set inputs, and a plurality of counter outputs, said real-time clock input coupled to said adjusting circuit output, and said plurality of counter outputs producing a usable tangible result for a user; and
a proportional integral derivative time processor having a first output and a second output, said first output operatively coupled to said adjusting circuit control input, and said second output operatively coupled to said plurality of set inputs.
2. The apparatus of claim 1 wherein said adjusting circuit control input can leave said pulse train unaltered.
3. The apparatus of claim 2 wherein said adjusting circuit control input can remove one or more pulses from said pulse train.
4. The apparatus of claim 3 wherein said adjusting circuit control input can add one or more pulses to said pulse train.
5. The apparatus of claim 4 wherein said pulse train output is a 32768 Hz pulse train output.