Patents by Inventor Wenjun He

Wenjun He has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • APPARATUS AND METHOD FOR CLOCK RECOVERY
    Publication number: 20190243408
    Abstract: An apparatus comprises a plurality of sampling circuits configured to receive a non-Non Return to Zero (non-NRZ) data signal; and a control circuit coupled to the plurality of sampling circuits, wherein the control circuit is configured to provide one or more control signals indicating whether to decrease or increase a frequency of a clock signal associated with the non-NRZ data signal based on the non-NRZ data signal.
    Type: Application
    Filed: April 17, 2019
    Publication date: August 8, 2019
    Applicant: PHOTONIC TECHNOLOGIES (SHANGHAI) CO., LTD.
    Inventors: Rui Bai, Xuefeng Chen, Wenzong Pan, Xin Wang, Tao Xia, Shang Hu, Zhichun Wang, Yuanxi Zhang, Wenjun He, Juncheng Wang, Patrick Yin Chiang
  • NON-TRANSITORY MACHINE READABLE MEDIUM FOR CLOCK RECOVERY
    Publication number: 20190245676
    Abstract: An apparatus comprises a plurality of sampling circuits configured to receive a non-Non Return to Zero (non-NRZ) data signal; and a control circuit coupled to the plurality of sampling circuits, wherein the control circuit is configured to provide one or more control signals indicating whether to decrease or increase a frequency of a clock signal associated with the non-NRZ data signal based on the non-NRZ data signal.
    Type: Application
    Filed: April 16, 2019
    Publication date: August 8, 2019
    Applicant: PHOTONIC TECHNOLOGIES (SHANGHAI) CO., LTD.
    Inventors: Rui Bai, Xuefeng Chen, Wenzong Pan, Xin Wang, Tao Xia, Shang Hu, Zhichun Wang, Yuanxi Zhang, Wenjun He, Juncheng Wang, Patrick Yin Chiang
  • CLOCK AND DATA RECOVERY CIRCUIT
    Publication number: 20190245678
    Abstract: An apparatus comprises a plurality of sampling circuits configured to receive a non-Non Return to Zero (non-NRZ) data signal; and a control circuit coupled to the plurality of sampling circuits, wherein the control circuit is configured to provide one or more control signals indicating whether to decrease or increase a frequency of a clock signal associated with the non-NRZ data signal based on the non-NRZ data signal.
    Type: Application
    Filed: April 17, 2019
    Publication date: August 8, 2019
    Applicant: PHOTONIC TECHNOLOGIES (SHANGHAI) CO., LTD.
    Inventors: Rui Bai, Xuefeng Chen, Wenzong Pan, Xin Wang, Tao Xia, Shang Hu, Zhichun Wang, Yuanxi Zhang, Wenjun He, Juncheng Wang, Patrick Yin Chiang
  • METHOD FOR SEPARATING DIMETHYL CARBONATE FROM METHANOL
    Publication number: 20190062259
    Abstract: A method for separating dimethyl carbonate from methanol includes subjecting a raw material containing dimethyl carbonate and methanol to extractive distillation, wherein an extractant comprising a compound having a general formula of CH3O(CH2CH2O)nCH3, n being an integer of 2-8, is used in the extractive distillation. The method has the advantages of good separation effect, high product purity, and environmental friendly.
    Type: Application
    Filed: August 28, 2018
    Publication date: February 28, 2019
    Inventors: Weimin Yang, Jun Li, Wenjun He, Junwei Ge, Jiahua Wang, Taikang Fei
  • Supported quaternary phosphonium catalyst, preparation and use thereof
    Patent number: 9416093
    Abstract: This invention relates to a supported quaternary phosphonium catalyst, preparation thereof and use thereof in producing dialkyl carbonates. The supported quaternary phosphonium catalyst of this invention has the following average molecular structure (I), and is characterized by a relatively high and stable catalyst activity. wherein, each of X, L, n, R1, R2, R3 and is the same as that in the specification.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: August 16, 2016
    Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology, Sinopec
    Inventors: Liangfeng Chen, Wenjun He
  • SUPPORTED QUATERNARY PHOSPHONIUM CATALYST, PREPARATON AND USE THEREOF
    Publication number: 20130317179
    Abstract: This invention relates to a supported quaternary phosphonium catalyst, preparation thereof and use thereof in producing dialkyl carbonates. The supported quaternary phosphonium catalyst of this invention has the following average molecular structure (I), and is characterized by a relatively high and stable catalyst activity. wherein, each of X, L, n, R1, R2, R3 and is the same as that in the specification.
    Type: Application
    Filed: May 15, 2013
    Publication date: November 28, 2013
    Applicants: SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY, SINOPEC, CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Liangfeng CHEN, Wenjun HE
  • Method and apparatus for liquid safety-detection by backscatter with a radiation source
    Patent number: 7400706
    Abstract: A method and an apparatus for liquid safety-detection by backscattering with a radiation source are provided that relate to a radiation detecting technology field.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: July 15, 2008
    Assignees: Tsinghua University, NucTech Company Limited
    Inventors: Yulan Li, Haifeng Hu, Yinong Liu, Zhiqiang Chen, Kejun Kang, Li Zhang, Wanlong Wu, Yuanjing Li, Yi Wang, Wenjun He, Mingrui Qi
  • Method and apparatus for liquid safety-detection by backscatter with a radiation source
    Publication number: 20060133566
    Abstract: A method and an apparatus for liquid safety-detection by backscatter with a radiation source relate to a radiation detecting technology field.
    Type: Application
    Filed: November 23, 2005
    Publication date: June 22, 2006
    Applicants: Tsinghua University, NucTech Company Limited
    Inventors: Yulan Li, Haifeng Hu, Yinong Liu, Zhiqiang Chen, Kejun Kang, Li Zhang, Wanlong Wu, Yuanjing Li, Yi Wang, Wenjun He, Mingrui Qi