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US 9,837,958 B2Granted
Crystal (xtal) oscillator with high interference immunity
OwnerXuefeng Chen, Hosein Zareieinventors
Life of this patent
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Abstract
Systems and methods are provided for a crystal (xtal) oscillator with high interference immunity. Generated reference signals may be processed to mitigate effects of interference. The processing may comprise filtering, particularly at harmonic positions, to remove or greatly reduce interference signals.
Claims20
A method comprising:
- in a crystal oscillator that provides periodic signals for an electronic system associated with the crystal oscillator:
- generating signals periodically based on resonance of a crystal core of the crystal oscillator, the generated signals having a particular resonant frequency;
- and
- processing the generated signals to mitigate effects of interference introduced by other operations and/or components of the electronic system, wherein the processing is configured based on the particular resonant frequency.
1 more element
A system comprising:
- a crystal oscillator that provides periodic signals for the system, wherein the crystal oscillator is operable to:
- generate signals periodically based on resonance of a crystal core, the generated signals having a particular resonant frequency;
- and
- process the generated signals to mitigate effects of interference introduced by other operations and/or components of the system, wherein the processing is configured based on the particular resonant frequency.
1 more element
A crystal oscillator that provides periodic signals, the crystal oscillator comprising:
- a crystal core operable to generate signals periodically based on resonance associated with the crystal core, the generated signals having a particular resonant frequency;
- and
- a processing circuit operable to process the generated signals to mitigate effects of interference introduced by other operations and/or components of an electronic system comprising or associated with the crystal oscillator, wherein the processing is configured based on the particular resonant frequency.
Dependencies are inferred from the claim text.