US 11,863,710 B2
Audio device and method for detecting device status of audio device in audio/video conference
Shaw-Min Lei, San Jose, CA (US); Yiou-Wen Cheng, Hsinchu (TW); and Liang-Che Sun, Hsinchu (TW)
Assigned to MEDIATEK INC., Hsinchu (TW)
Filed by MEDIATEK INC., Hsinchu (TW)
Filed on Nov. 1, 2021, as Appl. No. 17/515,909.
Prior Publication US 2023/0133061 A1, May 4, 2023
Int. Cl. H04M 9/08 (2006.01); G10K 11/178 (2006.01)
CPC H04M 9/082 (2013.01) [G10K 11/17854 (2018.01); G10K 11/17881 (2018.01); H04M 9/085 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An audio device, comprising:
processing circuitry, connected to a loudspeaker and a microphone, wherein the processing circuitry is configured to play an echo reference signal from a far end on the loudspeaker, and perform an acoustic echo cancellation (AEC) process using the echo reference signal and an acoustic signal received by the microphone using an AEC adaptive filter,
wherein the processing circuitry repeatedly determines a first status of the loudspeaker according to a relation between the played echo reference signal and the received acoustic signal, and transmits a first status signal indicating the first status of the loudspeaker to the far end through a cloud network.