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EP 4 004 709 A1

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(43) Date of publication: 01.06.2022 Bulletin 2022/22 (21) Application number: 20843743.4 (22) Date of filing: 22.07.2020

(51) International Patent Classification (IPC):  G06F 7/00(2006.01) H04B 1/66(2006.01) G06F 15/173(2006.01) H04N 7/167(2011.01) (52) Cooperative Patent Classification (CPC): G06F 7/02; H04N 21/23614; H04N 21/4348; H04N 21/4341; H04N 21/2368; H04N 21/85406 (86) International application number: PCT/US2020/042956 (87) International publication number: WO 2021/016286 (28.01.2021 Gazette 2021/04)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 22.07.2019 US 201962876940 P 11.03.2020 US 202062988030 P 31.03.2020 US 202063002495 P 21.07.2020 US 202016934183 (71) Applicant: C-Hear, Inc. Dallas, TX 75243 (US)

(72) Inventors: GONG, Changhong Plano, TX 75024 (US) GONG, Charles Plano, TX 75024 (US) HARMON, Adena Fort Worth, TX 76244 (US) KADADO, Taha Sachse, TX 75048 (US) COLLARD, Jesse Irving, TX 75038 (US) RODRIGUEZ, Alan Dallas, TX 75219 (US) ACHTERBERG, Jean Grapevine, TX 76051 (US) JONES, Tim, A. Mckinney, TX 75071 (US) LEUZINGER, Kenneth Flower Mound, TX 75028 (US) KADADO, Rashad Dallas, TX 75243 (US) (74) Representative: Parker, Andrew James  Meissner Bolte Patentanwälte Rechtsanwälte Partnerschaft mbB Widenmayerstraße 47 80538 München 80538 München (DE)