公开(公告)号：US20200186323A1

公开(公告)日：2020-06-11

申请号：US16274114

申请日：2019-02-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Zhiqiang Huang ,  Hiep Pham ,  Chih-Wei Yao

IPC: H04L7/00 ,  H04L7/04

Abstract: An apparatus for providing fast-settling quadrature detection and correction includes: a quadrature correction circuit that receives four quadrature clock signals; a quadrature detector that selects two clock signals among the four quadrature clock signals; and a phase digitizer that generates a digital code indicating a phase difference between the two clock signals. The quadrature correction circuit adjusts a phase between the two clock signals using the digital code.

公开(公告)号：US10812088B2

公开(公告)日：2020-10-20

申请号：US16220898

申请日：2018-12-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Zhiqiang Huang ,  Chih-Wei Yao ,  Hiep Pham

IPC: H03L7/087 ,  H04L27/227 ,  H03L7/08 ,  H03L7/10

Abstract: A synchronized in-phase/quadrature phase (I/Q) detection circuit and a method of the same are provided. The synchronized I/Q detection circuit includes a first logic circuit; a first filter; a first reset and sampling circuit; a first multiplexer; a second logic circuit; a second filter; a second reset and sampling circuit; a signal generator; and a comparator.

公开(公告)号：US11233627B2

公开(公告)日：2022-01-25

申请号：US17070577

申请日：2020-10-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Zhiqiang Huang ,  Hiep Pham ,  Chih-Wei Yao

IPC: H04L7/00 ,  H04L7/04

Abstract: An apparatus for providing fast-settling quadrature detection and correction includes: a quadrature correction circuit that receives four quadrature clock signals; a quadrature detector that selects two clock signals among the four quadrature clock signals; and a phase digitizer that generates a digital code indicating a phase difference between the two clock signals. The quadrature correction circuit adjusts a phase between the two clock signals using the digital code.

公开(公告)号：US11050428B2

公开(公告)日：2021-06-29

申请号：US17010322

申请日：2020-09-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Zhiqiang Huang ,  Chih-Wei Yao ,  Hiep Pham

IPC: H03L7/087 ,  H04L27/227 ,  H03L7/08 ,  H03L7/10

Abstract: A synchronized I/Q detection circuit is provided. A first subset of input signals and, subsequently, a second subset of input signals are provided by a first multiplexer and received by a first phase detector. Outputs of the first phase detector are receiving, by a first reset and sampling circuit. A second set of input signals are provided by a second multiplexer and received by a second phase detector, from a second multiplexer, while the first multiplexer receives the first and second subsets of input signals. The first subset of input signals has a same phase order as the second set of input signals, and the second subset of input signals has a different phase order than the second set of input signals. Outputs of the second phase detector are received by a second reset and sampling circuit. A comparator outputs a detected phase difference based on the outputs of the first and second reset and sampling circuits.

公开(公告)号：US20210028919A1

公开(公告)日：2021-01-28

申请号：US17070577

申请日：2020-10-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Zhiqiang Huang ,  Hiep Pham ,  Chih-Wei Yao

IPC: H04L7/00 ,  H04L7/04

Abstract: An apparatus for providing fast-settling quadrature detection and correction includes: a quadrature correction circuit that receives four quadrature clock signals; a quadrature detector that selects two clock signals among the four quadrature clock signals; and a phase digitizer that generates a digital code indicating a phase difference between the two clock signals. The quadrature correction circuit adjusts a phase between the two clock signals using the digital code.