Patents by Inventor He Wang Zhong

He Wang Zhong 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).

  • Digital watermark embedding method and extraction method, digital watermark embedding apparatus and extraction apparatus, and digital watermark system
    Patent number: 10977761
    Abstract: This application relates to the field of digital watermark technologies and discloses a digital watermark embedding method and extraction method, a digital watermark embedding apparatus and extraction apparatus, and a digital watermark system. The method includes obtaining a digital watermark of a composite file, splitting the digital watermark into N sub-watermarks according to a carrier quantity N of the composite file, each sub-watermark being corresponding to partial content of the digital watermark, embedding an ith sub-watermark in an ith carrier of the composite file, to obtain an ith target carrier, and integrating N target carriers into a target file. This application resolves a problem in the related technology that a digital watermark technology cannot ensure integrity of an order file, and protects carriers of a composite file, thereby ensuring security and integrity of the composite file.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: April 13, 2021
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: He Wang Zhong, Liang Sun, Zheng Bin Qu, Da Yi Huang, You Shan Yang
  • DIGITAL WATERMARK EMBEDDING METHOD AND EXTRACTION METHOD, DIGITAL WATERMARK EMBEDDING APPARATUS AND EXTRACTION APPARATUS, AND DIGITAL WATERMARK SYSTEM
    Publication number: 20190236747
    Abstract: This application relates to the field of digital watermark technologies and discloses a digital watermark embedding method and extraction method, a digital watermark embedding apparatus and extraction apparatus, and a digital watermark system. The method includes obtaining a digital watermark of a composite file, splitting the digital watermark into N sub-watermarks according to a carrier quantity N of the composite file, each sub-watermark being corresponding to partial content of the digital watermark, embedding an ith sub-watermark in an ith carrier of the composite file, to obtain an ith target carrier, and integrating N target carriers into a target file. This application resolves a problem in the related technology that a digital watermark technology cannot ensure integrity of an order file, and protects carriers of a composite file, thereby ensuring security and integrity of the composite file.
    Type: Application
    Filed: April 8, 2019
    Publication date: August 1, 2019
    Applicant: Tencent Technology (Shenzhen) Company Limited
    Inventors: He Wang Zhong, Liang Sun, Zheng Bin Qu, Da Yi Huang, You Shan Yang