US Patent 8001623 Electronic helmet

An electronic helmet is provided that includes a helmet body and an integrated electronic system disposed in the helmet body, providing a number of convenient functions. The helmet body has a hard outer shell and a hard inner shell mounted to the outer shell such that a cavity is defined between the outer and the inner shells. The inner shell can include suitable material to provide the wearer effective RF shielding from the electronic system, such as, nickel-plated carbon fiber to provide RF shielding. The helmet body further includes a shock-absorbent structure disposed between the inner shell and the head of a wearer.