US 12,081,951 B2
Sound-output device
Lei Zhang, Shenzhen (CN); Junjiang Fu, Shenzhen (CN); Fengyun Liao, Shenzhen (CN); and Xin Qi, Shenzhen (CN)
Assigned to Shenzhen Shokz Co., Ltd., Shenzhen (CN)
Filed by Shenzhen Shokz Co., Ltd., Shenzhen (CN)
Filed on Oct. 11, 2023, as Appl. No. 18/378,886.
Application 18/378,886 is a continuation of application No. 17/362,972, filed on Jun. 29, 2021, granted, now 11,956,603.
Application 17/362,972 is a continuation of application No. PCT/CN2019/125286, filed on Dec. 13, 2019.
Prior Publication US 2024/0129665 A1, Apr. 18, 2024
Int. Cl. H04R 3/00 (2006.01); H04R 1/02 (2006.01); H04R 1/28 (2006.01); H04R 3/12 (2006.01); H04R 9/02 (2006.01); H04R 25/00 (2006.01)
CPC H04R 3/00 (2013.01) [H04R 1/02 (2013.01); H04R 1/2803 (2013.01); H04R 3/12 (2013.01); H04R 9/025 (2013.01); H04R 25/50 (2013.01); H04R 2460/13 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A sound-output device, comprising:
a signal processing circuit, configured to generate a bone-conducted control signal and an air-conducted control signal based on an initial sound signal;
a vibration speaker, configured to generate a bone-conducted sound wave based on the bone-conducted control signal; and
an air-conduction speaker, configured to generate an air-conducted sound wave based on the air-conducted control signal, wherein
a signal component of at least partial frequency band in the air-conducted control signal has an amplitude and a phase canceling at least partial leakage of sound generated by the vibration speaker, such that at least partial component in the air-conducted sound wave cancels the at least partial leakage of sound.