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Pat. 11368126 United States, Int. Cl.22 H03B 5/36, H02M 3/158. Crystal oscillator circuit and method of operation : Appl. N 17/444320 : Filed 03.08.2021 : Pub. 21.06.2022 : / Ricardo Pureza Coimbra, Stefano Pietri, Vitor Moreira Gomes, Eduardo Ribeiro Da Silva ; Assignee Nxp Bv ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11368126/en?oq=US11368126.html (дата обращения: ДД.ММ.ГГГГ).