Patents by Inventor Dengsha Yuan

Dengsha Yuan 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 CONTENT RIGHTS MANAGEMENT METHOD AND SYSTEM
    Publication number: 20150067887
    Abstract: A digital content rights management method and system belongs to the digital content rights management technique field. The method of the invention includes the steps: registering the system, generating the time stamp, verifying the time stamp when the system starts up, acquiring the certificate, verifying the time before accessing the digital content. The system of the invention comprises a device for accessing the digital content and a server, wherein the device for accessing the digital content comprises: a registering module, a time stamp generating module, a time stamp verification module, a certificate of authorization acquiring module, and a time verification module. The method and system have solved the problem that the digital content can still be used beyond the time limit.
    Type: Application
    Filed: November 6, 2014
    Publication date: March 5, 2015
    Inventors: Yi WANG, Zhi TANG, Dengsha YUAN, Xuefeng YANG
  • Digital content rights management method and system
    Patent number: 8887299
    Abstract: A digital content rights management method and system belongs to the digital content rights management technique field. The method of the invention includes the steps: registering the system, generating the time stamp, verifying the time stamp when the system starts up, acquiring the certificate, verifying the time before accessing the digital content. The system of the invention comprises a device for accessing the digital content and a server, wherein the device for accessing the digital content comprises: a registering module, a time stamp generating module, a time stamp verification module, a certificate of authorization acquiring module, and a time verification module. The method and system have solved the problem that the digital content can still be used beyond the time limit.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: November 11, 2014
    Assignees: Peking University Founder Group Co., Ltd., Peking University, Beijing Founder Apabi Technology Ltd.
    Inventors: Yi Wang, Zhi Tang, Dengsha Yuan, Xuefeng Yang
  • Digital Content Rights Management Method and System
    Publication number: 20100086130
    Abstract: A digital content rights management method and system belongs to the digital content rights management technique field. The method of the invention includes the steps: registering the system, generating the time stamp, verifying the time stamp when the system starts up, acquiring the certificate, verifying the time before accessing the digital content. The system of the invention comprises a device for accessing the digital content and a server, wherein the device for accessing the digital content comprises: a registering module, a time stamp generating module, a time stamp verification module, a certificate of authorization acquiring module, and a time verification module. The method and system have solved the problem that the digital content can still be used beyond the time limit.
    Type: Application
    Filed: December 11, 2007
    Publication date: April 8, 2010
    Applicants: PEKING UNIVERSITY FOUNDER GROUP CO., LTD., PEKING UNIVERSITY, BEIJING FOUNDER APABI TECHNOLOGY LTD.
    Inventors: Yi Wang, Zhi Tang, Dengsha Yuan, Xuefeng Yang