公开(公告)号：EP0659288B1

公开(公告)日：2001-05-30

申请号：EP92915843.4

申请日：1992-07-14

Applicant: NOISE CANCELLATION TECHNOLOGIES, INC.

Inventor： ZIEGLER, Eldon ,  SMITH, Dexter ,  MCLOUGHLIN, Michael

IPC: G05B13/02 ,  H03B29/00

CPC classification number: H03G3/32 ,  G05B13/024 ,  G10K11/178 ,  G10K2210/10 ,  G10K2210/112 ,  G10K2210/121 ,  G10K2210/3045 ,  G10K2210/506

Abstract: A simple, low cost active noise cancellation system employing a delay and actuator estimator (35), a gain determination (34), a gain (33) and speaker (36) that cancels stationary random noise such as that encountered on a rangehood fan.

公开(公告)号：EP0659288A1

公开(公告)日：1995-06-28

申请号：EP92915843.0

申请日：1992-07-14

Applicant: NOISE CANCELLATION TECHNOLOGIES, INC.

Inventor： ZIEGLER, Eldon ,  SMITH, Dexter ,  MCLOUGHLIN, Michael

IPC: G05B13 ,  G10K11 ,  H03G3

CPC classification number: H03G3/32 ,  G05B13/024 ,  G10K11/178 ,  G10K2210/10 ,  G10K2210/112 ,  G10K2210/121 ,  G10K2210/3045 ,  G10K2210/506

Abstract: A simple, low cost active noise cancellation system employing a delay and actuator estimator (35), a gain determination (34), a gain (33) and speaker (36) that cancels stationary random noise such as that encountered on a rangehood fan.