Remote control radio system

DETAILED DESCRIPTION We claim: 1.
A remote control radio system for positioning a servo unit in accordance with the setting of an adjustable control comprising a transmitter having broadcast means for broadcasting a radio wave upon energization, means for energizing the brodcast means to provide a broadcast period and for effecting deenergization of the broadcast means to provide a silent period, means connected to the energizing means and the adjustable control for adjusting the silent period in accordance with the setting of the adjustable control; a receiver having radio receiving means for receiving the broadcasted wave and providing a detected signal having one state that exists while a broadcasted wave is being received and another state that exists when a broadcasted wave is not being received, means for receiving the detected signal and applying a control signal to the servo unit that has a duration essentially equal to the sum of the duration of the one state and the another state and means for delaying the control signal applying means from applying the control signal to the servo unit until at least two-thirds of the duration of the one state of the detected signal has expired, thereby reducing the possibility of interference by extraneous signals.
2.
The invention as defined in claim 1 in which the delaying means includes means for preventing the applying means from applying the control signal until two operative voltage levels simultaneously exist.
3.
The invention as defined in claim 2 in which the means for preventing includes a first timing means for providing one operative voltage level only after the one state of the detected signal has existed for a duration that is at least two-thirds of the duration of a broadcast period one state of the detected signal.
4.
The invention as defined in claim 2 in which the means for preventing includes a second timing means for providing a second operative voltage level only after the one state of the detected signal has existed for a small fraction of the duration of the broadcast period