Patent ID: 7446620
Filing Date: 2008-11-04
Classification: G01K,H03B,H03H,H03L

Abstract:
1. An oscillator system, comprising: a temperature measurement system including: a first microelectromechanical resonator to generate a first output signal having a frequency that varies with operating temperature, wherein the first microelectromechanical resonator includes a frequency function of temperature; a second microelectromechanical resonator to generate a second output signal having a frequency that varies with operating temperature, wherein the second microelectromechanical resonator includes a frequency function of temperature; frequency division circuitry, coupled to the first and second microelectromechanical resonators, to determine data which is representative of the operating temperature of the first and/or second microelectromechanical resonator using (i) data which is representative of the frequency of the first output signal and (ii) data which is representative of the frequency of the second output signal; and clock alignment circuitry, coupled to the temperature measurement system, to generate an output signal having frequency that is substantially stable over a predetermined operating temperature using the data which is representative of the operating temperature of the first and/or second microelectromechanical resonator.