公开(公告)号：US10554379B2

公开(公告)日：2020-02-04

申请号：US16283619

申请日：2019-02-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ling Liu ,  Wentong Wan

IPC: H04B10/69 ,  H04L7/00 ,  H04B10/61 ,  H04L7/04 ,  H04L7/033

Abstract: Embodiments of this application provide a method for obtaining a phase detection signal in a clock recovery circuit and a phase detector, configured to obtain a correct phase detection signal. A phase detector obtains sampling sequences sent by an analog to digital converter ADC, where the sampling sequences are obtained by the ADC by sampling, an electrical signal received by the ADC, and the electrical signal carries a pre-configured training sequence; the phase detector calculates a correlation between the sampling sequences and a comparison sequence, to determine a first location and a second location, where the first location and the second location are locations of a starting point of the training sequence in the sampling sequences; and the phase detector obtains a phase detection signal based on a difference parameter of the first location and the second location.

公开(公告)号：US11212070B2

公开(公告)日：2021-12-28

申请号：US17062210

申请日：2020-10-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wentong Wan

IPC: H04L7/00 ,  H04B7/0413 ,  H04B10/2569 ,  H04B10/60

Abstract: Embodiments of this application provide a clock phase recovery apparatus and method, and a chip. The clock phase recovery apparatus includes an ADC, a dispersion compensation unit, a digital interpolator, a MIMO equalization unit, and a clock offset phase obtaining unit. The ADC is connected to the dispersion compensation unit, and the dispersion compensation unit is connected to a first input end of the digital interpolator. An output end of the digital interpolator is connected to an input end of the MIMO equalization unit, and an output end of the MIMO equalization unit is connected to an input end of the clock offset phase obtaining unit. The digital interpolator is configured to adjust, based on first offset phase information output by the clock offset phase obtaining unit, a dispersion-compensated signal output by the dispersion compensation unit.

公开(公告)号：US20190190692A1

公开(公告)日：2019-06-20

申请号：US16283619

申请日：2019-02-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ling Liu ,  Wentong Wan

IPC: H04L7/00 ,  H04L7/033

Abstract: Embodiments of this application provide a method for obtaining a phase detection signal in a clock recovery circuit and a phase detector, configured to obtain a correct phase detection signal. A phase detector obtains sampling sequences sent by an analog to digital converter ADC, where the sampling sequences are obtained by the ADC by sampling, an electrical signal received by the ADC, and the electrical signal carries a pre-configured training sequence; the phase detector calculates a correlation between the sampling sequences and a comparison sequence, to determine a first location and a second location, where the first location and the second location are locations of a starting point of the training sequence in the sampling sequences; and the phase detector obtains a phase detection signal based on a difference parameter of the first location and the second location.

公开(公告)号：US08923702B2

公开(公告)日：2014-12-30

申请号：US13787113

申请日：2013-03-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wentong Wan ,  Kun Li ,  Limin Dong ,  Yanfu Yang ,  Chao Lv

IPC: H04B10/00 ,  H04B10/60 ,  H04B1/28 ,  H04B10/2575 ,  H04B10/90

CPC classification number: H04B10/60 ,  H04B1/28 ,  H04B10/2575 ,  H04B10/90

Abstract: A microwave photonics based signal receiving device includes a signal generation module, a first Mach-Zehnder modulator, a dispersion module, a second Mach-Zehnder modulator, and a signal conversion module. The signal receiving device simplifies a structure of the signal receiving device by adopting quadrature demodulation. The signal receiving device demodulates a high-order modulation signal and flexibly adjusts a microwave carrier frequency.

Abstract translation: 基于微波光子学的信号接收装置包括信号生成模块，第一马赫 - 曾德调制器，分散模块，第二马赫 - 曾德调制器和信号转换模块。 信号接收装置通过采用正交解调简化了信号接收装置的结构。 信号接收装置解调高阶调制信号，灵活调整微波载波频率。