Silicon-based oscillator for a downhole tool

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United States of America Patent

PATENT NO 9203413
APP PUB NO 20140159823A1
SERIAL NO

14098449

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Systems, methods, and assemblies to provide clock signals to electrical components of downhole tools are provided. In one example, an oscillator assembly may include a silicon-based oscillator having a variable capacitor circuit. The silicon-based oscillator may provide an output signal at a frequency within a range of frequencies. The oscillator assembly may also include control circuitry electrically coupled to the silicon-based oscillator. Moreover, the control circuitry may include a temperature input that receives a temperature corresponding to the silicon-based oscillator. The control circuitry may also include a control signal output electrically coupled to the silicon-based oscillator. The control signal output may be used to change a capacitance of the variable capacitor circuit based on the temperature received by the temperature input to maintain the output signal of the silicon-based oscillator within the range of frequencies.

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Patent Owner(s)

Patent OwnerAddress
SCHLUMBERGER TECHNOLOGY CORPORATION300 SCHLUMBERGER DRIVE SUGAR LAND TX 77478

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Greer, Nigel Clamart, FR 6 3
Nomura, Toshihiro Paris, FR 25 255
Vessereau, Patrick P Hericy, FR 2 12

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