US 11,869,515 B2
Apparatus and method for enhancing call quality of wireless earbuds
Yu-Cheng Hsieh, Hsinchu (TW)
Assigned to AIROHA TECHNOLOGY CORP., Hsinchu (TW)
Filed by Airoha Technology Corp., Hsinchu (TW)
Filed on Jun. 24, 2021, as Appl. No. 17/357,187.
Claims priority of application No. 202011339118.9 (CN), filed on Nov. 25, 2020.
Prior Publication US 2022/0165279 A1, May 26, 2022
Int. Cl. G10L 19/005 (2013.01); H04R 1/10 (2006.01); G10L 19/16 (2013.01); H04W 88/02 (2009.01); H03F 3/183 (2006.01)
CPC G10L 19/005 (2013.01) [G10L 19/167 (2013.01); H03F 3/183 (2013.01); H04R 1/1016 (2013.01); H04R 1/1041 (2013.01); H03F 2200/03 (2013.01); H04R 2420/07 (2013.01); H04W 88/02 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An apparatus for enhancing speech sound quality, comprising:
a first wireless earbud, comprising:
a first speaker; and
a first downlink speech process path, coupled to the first speaker, comprising a first packet loss concealment (PLC) processor, arranged operably to perform a first algorithm for reducing effects of packet loss for a mono speech data received through a first receiver of the first wireless earbud to generate a first compensated data; an inverter, arranged operably to generate an inverted speech data or an inverted speech signal based on the first compensated data generated by the first PLC processor, whereby enabling the first speaker to play a first analog signal corresponding to the inverted speech data, or the inverted speech signal; and
a second wireless earbud, comprising:
a second speaker; and
a second downlink speech process path, coupled to the second speaker, comprising a second PLC processor, arranged operably to perform the first algorithm for reducing effects of packet loss for the mono speech data received through a second receiver of the second wireless earbud to generate a second compensated data,
wherein no inverter is disposed on the second downlink speech process path, whereby enabling the second speaker to play a second analog signal corresponding to the second compensated data.