Patents by Inventor Zhuqing ZHU

Zhuqing ZHU 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).

  • Patent number: 11967119
    Abstract: The present disclosure relates to systems and methods for coding. The methods may include receiving at least two contexts, for each of the at least two contexts, obtaining at least one coding parameter corresponding to the context from at least one lookup table, determining a probability interval value corresponding to the context based on a previous probability interval value and the at least one coding parameter, determining a normalized probability interval value corresponding to the context by performing a normalization operation on the probability interval value, determining a probability interval lower limit corresponding to the context based on a previous probability interval lower limit and the at least one coding parameter, determining a normalized probability interval lower limit corresponding to the context by performing the normalization operation on the probability interval lower limit, and outputting at least one byte based on the normalized probability interval lower limit.
    Type: Grant
    Filed: December 12, 2021
    Date of Patent: April 23, 2024
    Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Pan Yu, Zhuqing Zhu, Qi Chen, Wei Fang, Yinchang Yang
  • Publication number: 20220101562
    Abstract: The present disclosure relates to systems and methods for coding. The methods may include receiving at least two contexts, for each of the at least two contexts, obtaining at least one coding parameter corresponding to the context from at least one lookup table, determining a probability interval value corresponding to the context based on a previous probability interval value and the at least one coding parameter, determining a normalized probability interval value corresponding to the context by performing a normalization operation on the probability interval value, determining a probability interval lower limit corresponding to the context based on a previous probability interval lower limit and the at least one coding parameter, determining a normalized probability interval lower limit corresponding to the context by performing the normalization operation on the probability interval lower limit, and outputting at least one byte based on the normalized probability interval lower limit.
    Type: Application
    Filed: December 12, 2021
    Publication date: March 31, 2022
    Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Pan YU, Zhuqing ZHU, Qi CHEN, Wei FANG, Yinchang YANG
  • Patent number: 11245928
    Abstract: A method for decoding an encoded code stream is provided. The method may include obtaining the encoded code stream. The method may include determining a plurality of code blocks based on the encoded code stream. The method may include determining a plurality of bit-planes for each of the plurality of code blocks, the plurality of bit-planes ranging from a most significant bit-plane to a least significant bit-plane. The method may include determining at least one query-plane for each of the plurality of bit-planes. The method may further include decoding each of the plurality of bit-planes based on the at least one query-plane.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: February 8, 2022
    Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Zhiyong Sun, Zhuqing Zhu, Qi Chen, Wei Fang
  • Publication number: 20210329302
    Abstract: A method for decoding an encoded code stream is provided. The method may include obtaining the encoded code stream. The method may include determining a plurality of code blocks based on the encoded code stream. The method may include determining a plurality of bit-planes for each of the plurality of code blocks, the plurality of bit-planes ranging from a most significant bit-plane to a least significant bit-plane. The method may include determining at least one query-plane for each of the plurality of bit-planes. The method may further include decoding each of the plurality of bit-planes based on the at least one query-plane.
    Type: Application
    Filed: June 25, 2021
    Publication date: October 21, 2021
    Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Zhiyong SUN, Zhuqing ZHU, Qi CHEN, Wei FANG