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Pat. 10523162 United States, Int. Cl.22 H04R 3/00, G10K 11/178, H02M 3/07, H03F 1/56, H03F 3/187, H03F 3/45, H04R 3/04, H04R 19/00, H04R 19/04, H04R 19/01. Split signal differential MEMS microphone : Appl. N 16/189667 : Filed 13.11.2018 : Pub. 31.12.2019 : / John J. Albers, Thomas Froehlich ; Assignee Knowles Electronics LLC ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10523162/en?oq=US10523162.html (дата обращения: ДД.ММ.ГГГГ).