US 12,465,524 B2
Ear-worn device and reproduction method
Shinichiro Kurihara, Hyogo (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Appl. No. 17/925,242
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
PCT Filed Jan. 12, 2022, PCT No. PCT/JP2022/000697
§ 371(c)(1), (2) Date Nov. 14, 2022,
PCT Pub. No. WO2022/259589, PCT Pub. Date Dec. 15, 2022.
Claims priority of application No. 2021-096075 (JP), filed on Jun. 8, 2021.
Prior Publication US 2023/0320903 A1, Oct. 12, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 11/08 (2006.01); G10K 11/178 (2006.01); G10L 25/84 (2013.01); H04R 25/00 (2006.01)
CPC A61F 11/08 (2013.01) [G10K 11/178 (2013.01); G10L 25/84 (2013.01); H04R 25/00 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An ear-worn device comprising:
a microphone that obtains a sound and outputs a first sound signal of the sound obtained;
a signal processing circuit that
outputs a second sound signal based on the first sound signal, when determining that the sound satisfies a predetermined requirement relating to a noise component contained in the sound and the sound contains human voice, and
outputs a third sound signal obtained by performing phase inversion processing on the first sound signal, when determining that the sound does not satisfy the predetermined requirement and when determining that the sound does not contain human voice;
a loudspeaker that outputs a reproduced sound based on the second sound signal output or on the third sound signal output; and
a housing that contains the microphone, the signal processing circuit, and the loudspeaker.