Abstract: A single-wire system for controlling electrical devices and multiple lights such as warning and signal lights for buses and other vehicles. The system includes a transmitter at a forward end of the vehicle and a receiver at the rear, a power supply and a signal lead. The transmitter operates in a "parallel in"-"serial out" mode and converts simultaneously-received input signals into a sequential or serial output format for transmission, on a single wire, to a "serial-in"-"parallel-out" receiver where the signals are decoded to provide rapid-pulse command data. These data bits are then directed to appropriate stations, including lamps, for energization thereof as warning and signal elements.

Abstract: A wireless remote control system has a transducer coupled to a sampling frequency counter to distinguish among various actuating signals. A comparator compares present and immediately preceding measurements and a confidence counter counts the number of identical comparisons and is reset for non-identical comparisons. A decoder which is disabled until the confidence counter reaches a predetermined count is coupled to utilization means to actuate the selected function. Logic means contain a clock controlled interval counter which is activated only after the confidence counter reaches the predetermined count for establishing a timing interval. During the interval logic means render the confidence counter unresponsive to the comparator thereby maintaining actuation of selected functions. Logic means also force a preset count into the interval counter to prevent establishing the timing interval for other functions.