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    • 6. 发明申请
    • METHODS AND APPARATUS FOR ENCODING INFORMATION ON AN A.C. LINE VOLTAGE
    • 编辑线路电压信息的方法和装置
    • WO2009133489A1
    • 2009-11-05
    • PCT/IB2009/051633
    • 2009-04-21
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.JOHNSTON, ScottBLACKWELL, Michael Keenan
    • JOHNSTON, ScottBLACKWELL, Michael Keenan
    • H05B33/08H05B39/08
    • H05B37/0263
    • An AC line voltage may be encoded with control information, such as dimming information derived from an output signal of a conventional dimmer, so as to provide an encoded AC power signal. One or more lighting units, including LED-based lighting units, may be both provided with operating power and controlled (e.g., dimmed) based on the encoded power signal. In one implementation, information may be encoded on the AC line voltage by inverting some half cycles of the AC line voltage to generate an encoded AC power signal, with the ratio of positive half-cycles to negative half-cycles representing the encoded information. In other aspects, the encoded information may relate to one or more parameters of the light generated by the LED-based lighting unit(s) (e.g., intensity, color, color temperature, etc.).
    • AC线电压可以用诸如从传统调光器的输出信号导出的调光信息的控制信息进行编码,以便提供经编码的AC电力信号。 包括基于LED的照明单元的一个或多个照明单元可以基于编码的电力信号被提供有操作功率和被控制(例如,变暗)。 在一个实现中,信息可以通过反转AC线电压的一些半个周期来编码在AC线电压上,以产生编码的AC功率信号,其中正半周期与负半周期的比率表示编码信息。 在其他方面,编码信息可以涉及由基于LED的照明单元(例如强度,颜色,色温等)产生的光的一个或多个参数。