Patents by Inventor Dan CHENG

Dan CHENG 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: 20260219409
    Abstract: A method and apparatus for migration imaging of a viscous medium are disclosed. The method includes: determining a new compensation function of the viscous medium based on a phase compensation function of a seismic wave in the viscous medium and an established amplitude compensation function; performing Fourier transform on a seismic record of a receiver point of the seismic wave in the viscous medium to obtain a seismic record in a frequency domain; performing frequency division compensation on the seismic record in the frequency domain based on the new compensation function of the viscous medium to obtain compensated seismic data; and performing prestack depth migration on the compensated seismic data to obtain a migration imaging section of the viscous medium. According to the examples of the disclosure, the problem of compensation for absorption attenuation in an area with a small Q value is solved, and resolution of a seismic imaging section is increased.
    Type: Application
    Filed: December 8, 2023
    Publication date: July 30, 2026
    Applicants: China National Petroleum Corporation, BGP Inc., China National Petroleum Corporation, CNPC EXPLORATION SOFTWARE CO., LTD
    Inventors: Lei WANG, Jiandong LIANG, Ruiqing XUAN, Jinping ZHU, Dan CHENG, Pengyuan SUN
  • Publication number: 20260152772
    Abstract: A biosynthetic method and composition for producing an Indigo dyestuff including Indigotin and Indirubin. Tryptophanase (TRP) and flavin-containing monooxygenase (FMO) are generated from a genetically-modified organism having a vector coding for tryptophanase and flavin-containing monooxygenase. The conversion of L-tryptophan to Indigo dyestuff is converted by the generated TRP and FMO in the presence of one or more bioactive additives selected from the cysteine, 2-oxindole, or 2-indoxyl to form a dyestuff having a ratio of Indigotin to Indirubin by weight between 1:0.1 to 1:4. The dyestuff has a color hue defined by CIE XYZ color space with X: 0.1920 to 0.2481, Y: 0.2537 to 0.2019, Z: 0.5543 to 0.5501. Selectable and reproduceable color hues are provided.
    Type: Application
    Filed: May 26, 2025
    Publication date: June 4, 2026
    Inventors: Wing Nien Wylie O, Dick Yan TAM, GuoZhuangQi YAN, Dan CHENG
  • Publication number: 20260089398
    Abstract: The present disclosure relates to the technical field of cameras, and provides a camera rapid exposure method and apparatus, an electronic device, and a medium. The method comprises: when a camera is in a dormant state, adjusting an image acquisition frequency and an image acquisition resolution on the basis of currently measured object distance and object body volume; controlling a sensing unit in the camera, and acquiring and caching a pre-alarm image by using the adjusted image acquisition frequency and image acquisition resolution; on the basis of the brightness of a plurality frames of the pre-alarm image cached by the camera when in the dormant state, estimating the brightness and exposure factor of a first frame image after the camera has started up; and once the camera is controlled to start up, performing exposure according to the estimated brightness and exposure factor of the first frame image after the camera has started up.
    Type: Application
    Filed: June 30, 2023
    Publication date: March 26, 2026
    Applicant: Zhejiang Uniview Technologies Co. Ltd.
    Inventors: Dan CHENG, Qiankun LV
  • Publication number: 20260069647
    Abstract: A traditional Chinese medicine (TCM) compound composition for treating heart failure (HF) includes Semen Sinapis Albae, Radix Kansui Praeparata, Semen Descurainiae, Ramulus Cinnamomi, Radix Aconiti Lateralis Praeparata, Eupolyphaga Steleophaga, Cortex Moutan, and Rhizoma Smilacis Glabrae. An acupoint selection principle for the external application of a YANG-warming and heart-settling plaster focuses on warming and tonifying the heart and kidneys, promoting blood circulation, and dispelling water retention. Five acupoints are selected: Danzhong (CV17), Xinshu (BL15), Juque (CV14), Shenshu (BL23), and Jingmen (GB25). Among these, Xinshu (BL15) paired with Juque (CV14), and Shenshu (BL23) paired with Jingmen (GB25), form combinations for the heart and kidneys for the heart and kidneys, facilitating tonification of the heart and kidneys, promoting water drainage to resolve dampness, and activating blood circulation to unblock meridians.
    Type: Application
    Filed: September 3, 2025
    Publication date: March 12, 2026
    Inventors: Lan Ge, Xiaoyu Cheng, Zhenpeng Zhu, Zhongzhi Li, Wenjun Jiang, Dan Cheng, Yulong Liu, Xinyue Wang, Maomao Zhang, Xiaowen Ma, Mengzhao Wei, Sheng Sheng, Mengru Chen
  • Publication number: 20250247424
    Abstract: This application is directed to systems and methods for detecting phishing attempts in a user application. In some embodiments, a disclosed method includes extracting from an incoming message a uniform resource identifier (URI) for identifying a resource on a computer network, generating a screenshot image of the resource identified by the URI, applying a phishing detection model to process the screenshot image and generate a phishing indicator representing a confidence level of determining that the resource would cause a phishing attack, and in accordance with a determination that the phishing indicator satisfies an alert condition, reporting via an alert message that the URI extracted from the incoming message corresponds to the phishing attack. In some embodiments, the alert condition includes a confidence threshold, and requires that the alert message be generated and reported in accordance with a determination that the phishing indicator is greater than the confidence threshold.
    Type: Application
    Filed: January 31, 2024
    Publication date: July 31, 2025
    Inventors: Jayson Lee Davidson, Dan Cheng, Connor Joseph Shride, Walter Nolen Scaife
  • Publication number: 20250179235
    Abstract: The present invention discloses a cross-linked nanoporous saccharide-based material comprising saccharides as building blocks, also referred as nanoporous Nanosponge materials. The reaction of saccharides with cross-linkers at different saccharides to cross-linker ratios in one-pot shall allow formation of nanoporous Nanosponge material. This method further allows introduction of new functional groups on this material by the use of suitable cross-linkers and surface grafting agents, and these functional groups shall be able to provide different interaction forces with water, volatile organic vapors (VOCs) and metal ions. Along with larger inner surface area owing to the presence of nanopores or nanocavities in comparison to porous materials, saccharide-based nanoporous Nanosponge materials shall find broad applications in thermal insulation, water retention, hydrophobic finishes, odor removal properties, and metal ions exchange or absorption from water or soil.
    Type: Application
    Filed: January 27, 2025
    Publication date: June 5, 2025
    Inventors: Wing Nien Wylie O, Tin Lok LI, Zhijian LIN, Dan CHENG, Jifan LI
  • Publication number: 20210122875
    Abstract: The present invention discloses a cross-linked nanoporous saccharide-based material comprising saccharides as building blocks, also referred as nanoporous Nanosponge materials. The reaction of saccharides with cross-linkers at different saccharides to cross-linker ratios in one-pot shall allow formation of nanoporous Nanosponge material. This method further allows introduction of new functional groups on this material by the use of suitable cross-linkers and surface grafting agents, and these functional groups shall be able to provide different interaction forces with water, volatile organic vapors (VOCs) and metal ions. Along with larger inner surface area owing to the presence of nanopores or nanocavities in comparison to porous materials, saccharide-based nanoporous Nanosponge materials shall find broad applications in thermal insulation, water retention, hydrophobic finishes, odor removal properties, and metal ions exchange or absorption from water or soil.
    Type: Application
    Filed: July 10, 2019
    Publication date: April 29, 2021
    Inventors: Wing Nien Wylie O, Tin Lok LI, Zhijian LIN, Dan CHENG, Jifan LI