| 摘要 |
A lighting system comprising a selectively operable light source, RF receiver for reproducing a received pulsed RF signal. Means for determining whether the reproduced RF signal is within an acceptable range of asymmetric patterns or "on" pulse times followed by "off" times selected to include a plurality or different asymmetric patterns and operating means for the light source for a selected period of time when the determining means determine that the reproduced RF signal is within acceptable range.
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