Proportional and all:or:nothing radio control system - uses varied rectangular signal to modulate H.F. wave with receiver decoding signals to control servomechanisms

摘要

The radio control system has a transmitter which has electronic circuits designed to create one or several rectangular signals which can be varied. These signals can be varied in width or freq. as a function of a proportional command or in width as a function of an all or nothing command so as to frequency or amplitude modulate a fuse fixed high frequency wave. The system has a receiver which decodes the proportional command or commands so as to actuate one or several servomechanisms whilst describing a positive or negative angle with respect to a central position and simultaneously decoding the all or nothing order or orders. This is used to actuate one or several motors or one or several relays in two directions.