Patents by Inventor Jiangbo QIAN

Jiangbo QIAN 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: 11488061
    Abstract: A high-dimensional data nearest-neighbor query method based on variable-length hash codes is disclosed. Specifically, in this method, hash codes with the same code frequency are taken as a sub-data set, all the sub-data sets are ranked, a compression ratio is set for each sub-data set, the sub-data sets are compressed and trained according to the compression ratios, and hash codes and original codes corresponding to the trained sub-data sets are obtained; the hash code of each trained sub-data sets is copied to obtain multiple replicas, and the original codes and the corresponding replicas are strung to obtain strung hash codes which are integrated to form a final nearest-neighbor query table; and, a query code is obtained, and the nearest-neighbor query table is searched for a nearest-neighbor data set to complete query. The query efficiency and accuracy are greatly improved according to the invention.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: November 1, 2022
    Assignee: Ningbo University
    Inventors: Jiangbo Qian, Yanduo Ren, Yao Sun, Wei Hu
  • Publication number: 20200142897
    Abstract: A high-dimensional data nearest-neighbor query method based on variable-length hash codes is disclosed. Specifically, in this method, hash codes with the same code frequency are taken as a sub-data set, all the sub-data sets are ranked, a compression ratio is set for each sub-data set, the sub-data sets are compressed and trained according to the compression ratios, and hash codes and original codes corresponding to the trained sub-data sets are obtained; the hash code of each trained sub-data sets is copied to obtain multiple replicas, and the original codes and the corresponding replicas are strung to obtain strung hash codes which are integrated to form a final nearest-neighbor query table; and, a query code is obtained, and the nearest-neighbor query table is searched for a nearest-neighbor data set to complete query. The query efficiency and accuracy are greatly improved according to the invention.
    Type: Application
    Filed: November 1, 2019
    Publication date: May 7, 2020
    Applicant: Ningbo University
    Inventors: Jiangbo Qian, Yanduo Ren, Yao Sun, Wei Hu
  • Patent number: 10622178
    Abstract: A miniature circuit breaker with an automatic opening/closing function, comprising a circuit breaker body and an automatic opening/closing driving mechanism; the body comprises circuit breakers, each comprising a plastic housing, an opening/closing handle and a manipulation mechanism; a spindle hole is at the rotation center of each handle; the driving mechanism comprises a case, a driving motor with a driving turbine, a linkage turbine, a linkage gear, an output spindle and a release linkage member; the driving motor drives the linkage turbine for reciprocating rotation via the driving turbine, and the linkage turbine drives the release linkage member for reciprocating rotation within a preset angle range via a cam linkage so that a lever of the release linkage member prods an opening release linkage rod to perform a rapid opening action; the linkage turbine drives the linkage gear and the output spindle to do synchronous rotation via driving teeth.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: April 14, 2020
    Assignee: HONGXIU ELECTRICAL CO., LTD.
    Inventors: Wenxiu Zheng, Yiyang Zheng, Jiangbo Qian
  • Patent number: 10593500
    Abstract: A linkage worm gear for an automatic opening/closing driving mechanism, wherein the linkage worm gear is integrally and concentrically provided with a worm gear driven portion, a gear driving portion and a cam linkage portion successively in the direction of the rotation central axis thereof; worm gear teeth fitted with a driving worm gear are provided on the whole peripheral wall of the worm gear driven portion; a reset groove, a recess, a transition portion and a boss are successively provided on the periphery of the cam linkage portion; and a plurality of driving teeth are provided on part of the peripheral wall of the gear driving portion.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: March 17, 2020
    Assignee: HONGXIU ELECTRICAL CO., LTD.
    Inventors: Wenxiu Zheng, Yiyang Zheng, Jiangbo Qian
  • Publication number: 20190348244
    Abstract: A miniature circuit breaker with an automatic opening/closing function, comprising a circuit breaker body and an automatic opening/closing driving mechanism; the body comprises circuit breakers, each comprising a plastic housing, an opening/closing handle and a manipulation mechanism; a spindle hole is at the rotation center of each handle; the driving mechanism comprises a case, a driving motor with a driving turbine, a linkage turbine, a linkage gear, an output spindle and a release linkage member; the driving motor drives the linkage turbine for reciprocating rotation via the driving turbine, and the linkage turbine drives the release linkage member for reciprocating rotation within a preset angle range via a cam linkage so that a lever of the release linkage member prods an opening release linkage rod to perform a rapid opening action; the linkage turbine drives the linkage gear and the output spindle to do synchronous rotation via driving teeth.
    Type: Application
    Filed: August 11, 2016
    Publication date: November 14, 2019
    Inventors: Wenxiu ZHENG, Yiyang ZHENG, Jiangbo QIAN
  • Publication number: 20180254161
    Abstract: A linkage turbine for an automatic opening/closing driving mechanism, wherein the linkage turbine is integrally and concentrically provided with a turbine driven portion, a gear driving portion and a cam linkage portion successively in the direction of the rotation central axis thereof; turbine teeth fitted with a driving turbine are provided on the whole peripheral wall of the turbine driven portion; a reset groove, a recess, a transition portion and a boss are successively provided on the periphery of the cam linkage portion; and a plurality of driving teeth are provided on part of the peripheral wall of the gear driving portion.
    Type: Application
    Filed: August 11, 2016
    Publication date: September 6, 2018
    Inventors: Wenxiu ZHENG, Yiyang ZHENG, Jiangbo QIAN