Oscillators – Solid state active element oscillator – Significant distributed parameter resonator
Reexamination Certificate
2007-05-08
2007-05-08
Chang, Joseph (Department: 2817)
Oscillators
Solid state active element oscillator
Significant distributed parameter resonator
C331S155000, C310S315000
Reexamination Certificate
active
10890005
ABSTRACT:
An oscillator circuit is provided having an oscillating amplifier circuit connected to a resonator. The oscillator/amplifier and resonator are preferably fabricated on a single die using semiconductor fabrication tools. Included with the circuitry is a temperature sensor or transducer, an execution unit, non-volatile memory, a modulator, and frequency synthesizer, all of which are integrated together on the substrate, along with the piezoelectric crystal resonator. The frequency synthesizer can preferably include a phase-locked loop with a divider that is in a feedback loop of the phase-locked loop, in which a divide-by value is received from a modulator that achieves finer and higher resolution frequency selectivity from the voltage-controlled oscillator, also within the phase-locked loop, as an output from the crystal oscillator.
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Richmond Greg
Taheri Babak
Whelan Steve
Chang Joseph
Cypress Semiconductor Corp.
Daffer Kevin L.
Daffer McDaniel LLP
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