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Self-calibrating optical transceiver system with reduced crosstalk sensitivity for through-display proximity sensing
Self-calibrating optical transceiver system with reduced crosstalk sensitivity for through-display proximity sensing
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机译:通过校准光学收发系统,具有降低的串扰灵敏度,通过显示屏接近感测
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摘要
An optical sensing system includes a transmitter side and a receiver side, and is configured to be positioned below a display of an electronic device. The transmitter side includes a light emitter, a temperature sensor, and a photodiode. The receiver side includes a photodiode and a temperature sensor. The optical sensing system includes an application-specific integrated circuit that leverages the temperature sensors, the photodiodes, and one or more signal filters such as a high-pass filter to perform multiple field calibrations of the optical sensing system, thereby improving accuracy and precision thereof.
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