发明名称 |
Optical sensor circuit, luminous panel and method for operating an optical sensor circuit |
摘要 |
An optical sensor circuit comprises an optical sensor (DET) designed to provide a sensor signal indicative of light incident on the optical sensor (DET). A clock terminal (CLK) is used to receive a clocked control signal comprising high and low states. A controller unit (CU) is connected to the optical sensor (DET) and to the clock terminal (CLK). The controller unit (CU) is designed to process the sensor signal as a color signal (CTS) in a first mode if the clocked control signal is in high state, and process the sensor signal as an ambient light signal (ALS) in a second mode if the clocked control signal is in low state, and further designed to generate a driving signal (PWM) to drive a light emitting device (LED) to be connected at a control terminal (OUT). The driving signal (PWM) depends on the color and ambient light signal (CTS, ALS). |
申请公布号 |
EP2804047(A1) |
申请公布日期 |
2014.11.19 |
申请号 |
EP20130167847 |
申请日期 |
2013.05.15 |
申请人 |
AMS AG |
发明人 |
TRATTLER, CURD;TRATTLER, PETER |
分类号 |
G02F1/1335;H05B33/08 |
主分类号 |
G02F1/1335 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|