System for adjusting frequency of electrical output pulses...

Details System for adjusting frequency of electrical output pulses... System for adjusting frequency of electrical output pulses...

2006-11-14

2006-11-14

Mis, David (Department: 2817)

Oscillators

Automatic frequency stabilization using a phase or frequency...

Afc with logic elements

C331S179000, C327S105000

Reexamination Certificate

active

07135933

ABSTRACT:
A system for setting and adjusting a frequency of electrical output pulses derived from an oscillator in a network is disclosed. The system comprises an accumulator module configured to receive pulses from an oscillator and to output an accumulated value. An adjustor module is configured to store an adjustor value used to correct local oscillator drift. A digital adder adds values from the accumulator module to values stored in the adjustor module and outputs their sums to the accumulator module, where they are stored. The digital adder also outputs an electrical pulse to a logic module. The logic module is in electrical communication with the adjustor module and the network. The logic module may change the value stored in the adjustor module to compensate for local oscillator drift or change the frequency of output pulses. The logic module may also keep time and calculate drift.

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PCT/US03/16475, Published Dec. 4, 2003, Applicant Baker Hughes; International Search Report: “Documents Considered to Be Relevant”.

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