Sound Field Control Acoustics Pillow

This utility model discloses a headrest with a noise reduction function, comprising a left headrest body and a right headrest body arranged symmetrically; the end of the left headrest body facing away from the right headrest body bulges upward, and the end of the right headrest body facing away from the left headrest body bulges upward; the left headrest body and the right headrest body combine to form a main headrest body, and the upper surface of the main headrest body is U-shaped with a recessed center and raised ends; a control panel and a charging port are provided on the side of the main headrest body; a first speaker is disposed inside the main headrest body at a position corresponding to the upper inclined surface of the left headrest body, and a second speaker is disposed inside the main headrest body at a position corresponding to the upper inclined surface of the right headrest body; a first feedforward microphone is disposed inside the main headrest body at a position corresponding to the raised portion of the upper surface of the left headrest body; a second feedforward microphone is disposed inside the main headrest body at a position corresponding to the raised portion of the upper surface of the right headrest body. In this technical solution, by providing the feedforward microphones and speakers, active noise cancellation is achieved through the principle of superposition, significantly reducing noise disturbance in daily environments and improving quality of life, sleep quality, and work concentration.

Patent Number : HK30103954