Patent ID: 8797182

Claim:
A system for signaling between operators of vehicles, comprising: at least two units configured for communication therebetween, each of the units comprising: a housing; a control circuit mounted on the housing; a transceiver configured for transmitting and receiving signals between the units, said transceiver being communicatively coupled to the control circuit; a plurality of emitters each being connected to the control circuit, the emitters being mounted on the housing, the plurality of emitters including at least a first emitter and a second emitter; a plurality of actuators each being connected to the control circuit, each of the actuators being associated with one of the emitters such that the associated one of the emitters is turned on when an actuator is actuated, the plurality of actuators comprises at least a first actuator and a second actuator; wherein the control circuit is configured to cause the transceiver to transmit a first signal when the first actuator is actuated, the control circuit being configured to cause the transceiver to transmit a second signal when the second actuator is actuated, the control circuit being configured to turn on the first emitter when the first signal is received, the control circuit turning on the second emitter when the second signal is received; and wherein the control circuit and the transceiver are configured to retransmit signals received from another unit to other units to extend an effective transmission range of the another unit.