Apparatus for controlling an electrical device by remote control including a control device coupled to the electrical device by a wire connection for providing power to the electrical device, the control device having an actuator for adjusting the status of the electrical device and a radio frequency...http://www.google.com/patents/US5905442?utm_source=gb-gplus-sharePatent US5905442 - Method and apparatus for controlling and determining the status of electrical devices from remote locations
