METHOD FOR MEASURING INTENSITY OF AMBIENT LIGHT AT ELECTRONIC DEVICE, ELECTRONIC DEVICE, AND CHIP

A method for measuring an intensity of ambient light at an electronic device, and a electronic device and chip are provided. The electronic device includes a screen, and the screen is deemed at a dimming frequency. The method includes the following. Mixed light including the ambient light and screen...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHONG, Songjin, FU, Enqi, CHENG, Leigang
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADVERTISING ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION COLORIMETRY CRYPTOGRAPHY DISPLAY EDUCATION MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING PHYSICS RADIATION PYROMETRY SEALS TESTING
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Beschreibung
Zusammenfassung:	A method for measuring an intensity of ambient light at an electronic device, and a electronic device and chip are provided. The electronic device includes a screen, and the screen is deemed at a dimming frequency. The method includes the following. Mixed light including the ambient light and screen leakage light is collected. A DC mean value of the mixed light is obtained. A DC mean value of the screen leakage light is obtained. A DC mean value of the ambient light is determined by subtracting the DC mean value of the screen leakage light from the DC mean value of the mixed light. The DC mean value of the ambient light is indicative of the intensity of the ambient light.