Patent ID: 7616073
Filing Date: 2009-11-10
Classification: H03B,H03C,H03L

Abstract:
1. An oscillator, comprising: a piezoelectric resonator; a sensor coupled to the resonator; a look-up table addressable from readings taken from the sensor for producing a compensated value; a delta-sigma modulator coupled to receive the compensated values and produce a data stream of logic one voltage values and logic zero voltage values corresponding to a magnitude of the compensated value; a frequency divider coupled to modify a frequency output from the resonator based on the proportion of logic one voltage values to logic zero voltage values; and a switch operably coupled to select one of: a signal output from the resonator; an external signal forwarded to the switch to be placed into the oscillator as a slave clock; and an output from the oscillator, to be used as a master clock.