Patent ID: 8244308

Claim:
A helmet communication device comprising a first communication device, a second communication device and a switching circuit device, wherein the first communication device is fixed at an exterior side of a helmet, and includes a voice processing circuit, a battery power circuit, a microphone and a speaker, with the voice processing circuit being provided with a voice processing chip, a signal input end and a signal output end of the voice processing chip being connected respectively with two connection ports, the microphone being conducted with the voice processing chip through the signal input connection port, the speaker being conducted with the voice processing chip through the signal output connection port, and the battery power circuit being assembled by connecting a battery set with a connection socket; the second communication device is removably provided on an outer wall close to a rear side of the helmet, and an interior of a housing of the second communication device includes a microphone, a speaker and a connection socket, with the microphone and the speaker being electrically connected with the signal input connection port and the signal output connection port in the first communication device through a signal transmission wire that is connected on the connection socket; and the switching circuit device is fixed on an outer wall at a side of the helmet, including a circuit change-over switch and two connection sockets, with the two connection sockets being electrically connected with the first communication device and a cellular phone respectively, through a signal-power wire and a signal transmission wire, and an on or off of the battery power circuit in the first communication device being controlled by the circuit change-over switch of the switching circuit device, such that when the battery power circuit is turned on, the battery power circuit is electrically connected with the voice processing circuit.