公开(公告)号：US10917098B2

公开(公告)日：2021-02-09

申请号：US16704486

申请日：2019-12-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jaehyuk Jang ,  Sangwook Han ,  Shinwoong Kim ,  Jaeyoung Kim ,  Chulho Kim

IPC: H03D3/24 ,  H03L7/089 ,  H04B3/52 ,  H03L7/099 ,  H04B3/54 ,  H04L7/033 ,  H03L7/087

Abstract: A device for wireless communication using a plurality of antennas including a first local oscillation generator configured to generate a first local oscillation signal for up-converting a first transmission signal, a second local oscillation generator configured to generate a second local oscillation signal for up-converting a second transmission signal, and a phase difference detector configured to, detect a first phase difference between the first local oscillation signal and the second local oscillation signal, and generate a first phase compensation signal based on the first phase difference for adjusting a phase of at least one of the first transmission signal or the second transmission signal.

公开(公告)号：US10897259B1

公开(公告)日：2021-01-19

申请号：US16853076

申请日：2020-04-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Shinwoong Kim ,  Myounggyun Kim ,  Chulho Kim ,  Inhyo Ryu ,  Jaewon Choi ,  Sangwook Han ,  Honggul Han

IPC: H03L7/087 ,  H03L7/089 ,  H03L7/095 ,  H03L7/14 ,  H03L7/091 ,  H03L7/099 ,  H03L7/195 ,  H03L7/093

Abstract: A phase locked circuit includes an oscillator configured to generate an output clock signal, a first phase detector configured to detect a phase difference between an input clock signal and a feedback clock signal based on the output clock signal, a second phase detector having a wider phase locking range than that of the first phase detector and configured to detect the phase difference between the input clock signal and the feedback clock signal, and a charge pump controller configured to control an output current of a charge pump included in the second phase detector based on the phase difference detected by the first phase detector. When the phase difference between the input clock signal and the feedback clock signal is within the phase locking range of the first phase detector, the oscillator and the first phase detector are connected to each other.

公开(公告)号：US11356106B2

公开(公告)日：2022-06-07

申请号：US17334077

申请日：2021-05-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Shinwoong Kim ,  Myounggyun Kim ,  Joonhee Lee ,  Sangwook Han

IPC: H03L7/099 ,  H03L7/093 ,  H03D3/24

Abstract: An electronic device includes a phase locked loop configured to perform a two-point modulation operation on a data signal by using first and second modulation paths, and the phase locked loop is configured to generate, based on a differential value of a first phase error signal generated in the first modulation path, a gain for adjusting a frequency variation of the data signal through the second modulation path so as to match with the frequency variation of the data signal through the first modulation path.