公开(公告)号：WO1995024171A1

公开(公告)日：1995-09-14

申请号：PCT/US1995002435

申请日：1995-03-01

Applicant: NOISE CANCELLATION TECHNOLOGIES, INC.

Inventor： NOISE CANCELLATION TECHNOLOGIES, INC. ,  COOK, R., Douglas ,  DONOVAN, Joseph, B.

IPC: A61F11/06

CPC classification number: H04B11/00 ,  G10K11/178 ,  G10K2210/112 ,  G10K2210/3026 ,  G10K2210/3027 ,  G10K2210/32291 ,  G10K2210/511 ,  G10K2210/512

Abstract: An active pressure fluctuation control system to control noise in ducts including a vibratable element (2) within a duct (1) which can be adapted to vibrate so as to form a cancelling waveform to attenuate sound wave within the duct system (1).

Abstract translation: 一种用于控制管道中的噪声的主动压力波动控制系统，其包括管道（1）内的可振动元件（2），所述可振动元件可适于振动以形成消除波形以衰减所述管道系统（1）内的声波。