Patent ID: 8340311

Claim:
A system for amplifying the voice of a sports team signal caller during the course of a sports competition to communicate information to other players on the signal caller's team despite a level of extraneous noise, the sports team signal caller wearing equipment comprising a protective helmet and protective shoulder pads, the system comprising: a microphone positioned on the protective helmet worn by the sports team signal caller in a location for reception of the voice of the sports team signal caller when the sports team signal caller is calling signals during the course of the sports competition, the microphone comprising a wireless microphone communicating a radio frequency signal; an electronic amplifier circuit positioned within the protective shoulder pads worn by the sports team signal caller, the electronic amplifier circuit receiving the radio frequency signal from the microphone; a power supply connected to the electronic amplifier circuit and positioned within the protective shoulder pads worn by the sports team signal caller; and a plurality of broadcast loudspeakers positioned within the protective shoulder pads worn by the sports team signal caller and connected to the electronic amplifier circuit for re-broadcasting the amplified voice of the sports team signal caller to the other players on the signal caller's team, the plurality of broadcast loudspeakers comprising at least one loudspeaker oriented away from the sports team signal caller to the sports team signal caller's right, at least one loudspeaker oriented away from the sports team signal caller to the sports team signal caller's left, and at least one loudspeaker oriented away from the sports team signal caller in a direction generally orthogonal to the sports team signal caller's right and left.