公开(公告)号：US20050213773A1

公开(公告)日：2005-09-29

申请号：US10520036

申请日：2003-06-26

Applicant: Mark Donaldson ,  Graeme Fuller

Inventor： Mark Donaldson ,  Graeme Fuller

IPC: H04R1/10 ,  G10K11/178 ,  H04R3/00 ,  H04R5/033 ,  H04R19/01 ,  A61F11/06 ,  G10K11/16 ,  H03B29/00

CPC classification number: H04R1/1083 ,  H04R3/00 ,  H04R5/033

Abstract: A noise cancellation system includes a headphone having a sound transducer and a headphone speaker. Noise cancellation circuitry is provided remote from the headphone and supplies the headphone speaker and is supplied from the sound transducer. A filter normalizes the output from the sound transducer of the headphone to the noise cancellation circuitry.

Abstract translation: 噪声消除系统包括具有声音换能器和耳机扬声器的耳机。 噪声消除电路远离耳机提供，并提供耳机扬声器，并从声音传感器提供。 滤波器将从耳机的声音传感器的输出归一化为噪声消除电路。