Resonant drive system for RF face tracking

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United States of America Patent

PATENT NO 12094241
APP PUB NO 20230196828A1
SERIAL NO

17554401

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Abstract

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A system and method generate an alternating current (AC) input signal by a digitally controlled resonant drive circuit. The method includes driving a face tracking sensor with the input signal. An output signal is received from the face tracking sensor and an amplitude of the output signal is compared to a target amplitude. A duty cycle of the resonant drive circuit is modified based on the comparison to control the amplitude of the output signal about the target amplitude.

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Patent Owner(s)

Patent OwnerAddress
MICROSOFT TECHNOLOGY LICENSING LLCONE MICROSOFT WAY REDMOND WA 98052

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cao, Zhuo Yi Fremont, US 4 1
Galinski,, III Martin Francis Santa Clara, US 13 19
Park, Chang Joon Sunnyvale, US 71 541
Voong, Mike San Francisco, US 6 0

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