公开(公告)号：US09741334B2

公开(公告)日：2017-08-22

申请号：US15044381

申请日：2016-02-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Cheol Yong Park ,  Ju Hee Chang ,  Se Jeong Na ,  Sung Kyu Park ,  In Seok Shim ,  Sung Hoon Jeong ,  Ho Chul Hwang

IPC: G10K11/16 ,  G10K11/178 ,  H04R1/10

CPC classification number: G10K11/1782 ,  G10K11/178 ,  G10K11/1783 ,  G10K11/17881 ,  G10K2210/1081 ,  G10K2210/3016 ,  G10K2210/503 ,  H04R1/1041 ,  H04R1/1083 ,  H04R2420/05 ,  H04R2420/07 ,  H04R2420/09 ,  H04R2460/01

Abstract: An audio output device controls the application of active noise cancellation (ANC) levels based on a current status of the device. The audio output device includes a communication interface configured to provide a wired or wireless connection to a playback device, a signal detector configured to detect an audio signal provided through the communication interface, an ANC module configured to apply a first-level ANC to the audio signal, and a control unit configured to determine a level of the ANC to be applied by the ANC module. Upon determining that the audio signal is not provided based on information provided from at least one of the communication interface or the signal detector, the control unit instructs the ANC module to perform a second-level ANC.