Patents by Inventor Changan Wang

Changan Wang 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).

  • Publication number: 20260038156
    Abstract: This application discloses an image encoder determination method performed by a computer device. The method includes: inputting, for a first sample image and a second sample image of a first object under different lighting parameters, the first sample image into an image encoder in an initial reconstruction model for image encoding, and outputting first image patch codes respectively corresponding to a plurality of first image patches; inputting the plurality of first image patch codes into a reconstruction network in the initial reconstruction model, and performing code prediction on a plurality of second image patches in the second sample image to output a plurality of first predicted codes; and performing model training on the initial reconstruction model with reference to a plurality of second image patch codes obtained by inputting the plurality of second image patches into a pre-trained encoder and a loss function, to obtain a first reconstruction model.
    Type: Application
    Filed: October 13, 2025
    Publication date: February 5, 2026
    Inventor: Changan WANG
  • Publication number: 20260004564
    Abstract: A data detection method includes obtaining an image sample, extracting sample features from the image sample, determining a target sample feature with a maximum nearest-neighbor feature distance, determining, based on the nearest-neighbor feature distances of the sample features, (N+1) sample feature categories corresponding to the sample features, N being a positive integer, and training an initial feature classification model based on the (N+1) sample feature categories and the sample features to obtain a trained feature classification model. The nearest-neighbor feature distance of one sample feature is a minimum value of feature distances between the one sample feature and other ones of the plurality of sample features except the one sample feature. The (N+1) sample feature categories include N first feature categories indicating detected data being normal data and a second feature category indicating to perform secondary detection on the detected data.
    Type: Application
    Filed: September 4, 2025
    Publication date: January 1, 2026
    Inventor: Changan WANG
  • Publication number: 20250391164
    Abstract: This application discloses an image processing method and apparatus, and a storage medium. The method includes receiving a line scan image in line scan data, the line scan image comprising a plurality of image blocks; obtaining a first sampled image and a second sampled image corresponding to each image block, inputting the first sampled image and the second sampled image into a preset backbone network, to obtain a first image feature corresponding to the first sampled image and a second image feature corresponding to the second sampled image, mapping the first image feature to a feature space of the second image feature to obtain a mapping feature; performing self-supervised training on the preset backbone network, and determining a to-be-processed image feature of a to-be-processed image through the target backbone network.
    Type: Application
    Filed: August 25, 2025
    Publication date: December 25, 2025
    Inventors: Changan WANG, Boshen ZHANG
  • Patent number: 11440751
    Abstract: A reaction vessel pickup mechanism, an automatic loading device, a sample analyzer, and a loading method are disclosed. Driven by a driving structure, each of the pickup blocks moves in a first preset time or a preset distance and then stops or shakes, so that a reaction vessel is dropped from the pickup blocks more easily.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: September 13, 2022
    Assignee: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD.
    Inventors: Zhengguo Wang, Yanwen Weng, Zhi Zhang, Changan Wang, Jun Wang
  • Publication number: 20200216273
    Abstract: A reaction vessel pickup mechanism, an automatic loading device, a sample analyzer, and a loading method are disclosed. Driven by a driving structure, each of the pickup blocks moves in a first preset time or a preset distance and then stops or shakes, so that a reaction vessel is dropped from the pickup blocks more easily.
    Type: Application
    Filed: March 19, 2020
    Publication date: July 9, 2020
    Applicant: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD.
    Inventors: Zhengguo WANG, Yanwen WENG, Zhi ZHANG, Changan WANG, Jun WANG
  • Patent number: 7386182
    Abstract: According to one embodiment of the invention, a method for enhancing multiple feature lithography is provided. The method includes generating a plurality of maps each associated with a particular one of a plurality of circuit features. Each map maps an illumination field comprising a plurality of point sources and indicates, in terms of a process metric and for each point source, a level of feature quality that will result from using the each point source to image the each circuit feature. The method also includes identifying, based on the maps, a group of one or more of the point sources that, if used to image the circuit features onto a target surface, will result in an overall feature quality level equal to or greater than a predetermined quality threshold.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: June 10, 2008
    Assignee: Texas Instruments Incorporated
    Inventors: Gary Guohong Zhang, Changan Wang
  • Publication number: 20060107249
    Abstract: According to one embodiment of the invention, a method for enhancing multiple feature lithography is provided. The method includes generating a plurality of maps each associated with a particular one of a plurality of circuit features. Each map maps an illumination field comprising a plurality of point sources and indicates, in terms of a process metric and for each point source, a level of feature quality that will result from using the each point source to image the each circuit feature. The method also includes identifying, based on the maps, a group of one or more of the point sources that, if used to image the circuit features onto a target surface, will result in an overall feature quality level equal to or greater than a predetermined quality threshold.
    Type: Application
    Filed: November 12, 2004
    Publication date: May 18, 2006
    Inventors: Gary Zhang, Changan Wang
  • Publication number: 20050016570
    Abstract: The invention provides a machine for washing a mop, which includes a housing, a driving mechanism, a controlling mechanism, a pulsator, a water tank, a water removal barrel, a draining mechanism, and a mop supporting means, wherein an integrated device of the pulsator and the water removal barrel consists of the water removal barrel which is a cylinder without bottoms and the pulsator which is fixed together with the lower end of the barrel. The mop supporting means is a protrusion supporting element which is on the upper end of the center of the pulsator.
    Type: Application
    Filed: May 8, 2002
    Publication date: January 27, 2005
    Inventors: Jihai Xu, Changan Wang
  • Patent number: 6847919
    Abstract: Characterizing an exposure tool involves receiving data describing a pattern formed at a wafer. The pattern is formed by illuminating the wafer using an exposure tool, and the data has a scan direction and slit direction. An image field is mapped according to the data to determine an image field error of the data, and the image field error is separated from the data to reduce variation of the data in the scan direction. The data is reduced to the slit direction. Errors associated with the exposure tool are determined from the data in order to characterize the exposure tool.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: January 25, 2005
    Assignee: Texas Instruments Incorporated
    Inventors: Guohong Zhang, Changan Wang, Stephen J. DeMoor
  • Publication number: 20040167748
    Abstract: Characterizing an exposure tool involves receiving data describing a pattern formed at a wafer. The pattern is formed by illuminating the wafer using an exposure tool, and the data has a scan direction and slit direction. An image field is mapped according to the data to determine an image field error of the data, and the image field error is separated from the data to reduce variation of the data in the scan direction. The data is reduced to the slit direction. Errors associated with the exposure tool are determined from the data in order to characterize the exposure tool.
    Type: Application
    Filed: February 21, 2003
    Publication date: August 26, 2004
    Applicant: Texas Instruments Incorporated
    Inventors: Guohong Zhang, Changan Wang, Stephen J. DeMoor