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Pat. 10686407 United States, Int. Cl.22 H03F 1/02, H02M 3/156, H03F 3/183, H03F 3/19, H03F 3/21, H03G 3/30, H04B 7/0452. Symbol power tracking amplification system and a wireless communication device including the same : Appl. N 16/504475 : Filed 08.07.2019 : Pub. 16.06.2020 : / Takahiro Nomiyama, Ji-Seon Paek, Dong-Su Kim ; Assignee Samsung Electronics Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10686407/en?oq=US10686407.html (дата обращения: ДД.ММ.ГГГГ).