Patent ID: 6584201
Filing Date: 2003-06-24
Classification: H03G

Abstract:
A system for automatically adjusting a sound level, comprising:a sound-emitting device providing a sound level and a receiver configured to respond to a remote control volume signal to control said sound level; and a remote control device operable by a user to manually increase or decrease the sound level of said sound-emitting device, said remote control device further comprising; at least one directional microphone for sensing said sound level; at least one omni-directional microphone for sensing a total received noise level equal to said sound level plus an ambient noise level; processing circuitry, coupled to said directional and said omni-directional microphones, for measuring sound level to noise ratio levels, as sensed by said two microphones for determining whether said sound level emitted by said sound-emitting device should be increased or decreased or remain unchanged; a plurality of volume control units, coupled to said processing circuitry and configured to generate said remote control volume signal; and a remote signal transmitter coupled to said volume control units, said remote signal transmitter for transmitting said remote control volume signal to said sound-emitting device based on said measurement of sound level to noise ratio level.