AMBIENT LIGHT SENSOR WITH AUTOMATIC GAIN CONTROL

AMBIENT LIGHT SENSOR WITH AUTOMATIC GAIN CONTROL

An ambient light sensing method, comprising: acquiring the sensitivity settings, an exposure time and obtaining a sensing signal of a light sensor according to the sensitivity settings and the exposure time; determining whether the magnitude of the sensing signal is within a predetermined range when...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CHUA SENG-YEE, WIN MON-OO, TAN TONG-TEE
Format: Patent
Sprache:eng
Schlagworte:
COLORIMETRY
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
RADIATION PYROMETRY
TESTING
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Beschreibung
Zusammenfassung:An ambient light sensing method, comprising: acquiring the sensitivity settings, an exposure time and obtaining a sensing signal of a light sensor according to the sensitivity settings and the exposure time; determining whether the magnitude of the sensing signal is within a predetermined range when the sensing signal is available, wherein the predetermined range has an upper value and a lower value; updating the sensitivity settings and the exposure time of the light sensor according to the determined result for the magnitude of the sensing signal; and acquiring the sensing signal of the light sensor with the updated sensitivity settings and the updated exposure time.