DEVICE FOR NOISE COMPENSATION IN CAR Russian patent published in 2013 - IPC G10K11/178 

FIELD: physics.

SUBSTANCE: device for noise compensation in a car with a receiver (10) which detects occurring noise, having a signal generator (8) which generates, based on the detected noise, at least one signal, and with at least one speaker (7) which generates, based on the signal, damping sound waves which are phase shifted with respect to the sound waves of the occurring noise, and emits said waves inside the car. The at least one speaker (7) is installed inside the car such that damping sound waves are emitted into the zone of the sleeping berth (11).

EFFECT: low noise level in the sleeping berth of a car.

6 cl, 2 dwg