Patents by Inventor Yongguang Zhang

Yongguang Zhang 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: 20030204716
    Abstract: A system for distributing digital content from a content provider to content presenter(s) for presentation. The system includes a provider apparatus that encrypts the content before distribution thereof and sets at least one condition for presenting the content, and a presenter apparatus to which is distributed the encrypted content and which is allowed to decrypt the content when the at least one condition is satisfied. The system allows for secure distribution of multimedia presentations from one source to geographically separate locations. The system provides for secure presentation and cryptographically secure accounting for each presentation.
    Type: Application
    Filed: April 24, 2002
    Publication date: October 30, 2003
    Inventors: Troy Dean Rockwood, Bong Kyun Ryu, Wensheng Zhou, Yongguang Zhang
  • Patent number: 6301463
    Abstract: A device for implementing a multimedia communication dissemination system is disclosed herein. The communication system integrates heterogeneous satellite transmission systems, local area computer networks, and the public telephone system to implement a flexible, high-speed communication system. The preferred communication dissemination system includes a broadcast server for broadcasting an information signal, a mobile base station for receiving the information signal broadcast from the broadcast server, and a local area network for distributing information received by the mobile base station. The preferred mobile base station includes a receiver for receiving information signals transmitted from a broadcast server, a network interface for distributing processed information signals, and a software proxy process for processing information signals. A software proxy process controls the dissemination of information through the network.
    Type: Grant
    Filed: January 27, 1999
    Date of Patent: October 9, 2001
    Assignee: Hughes Electronics Corporation
    Inventors: Son K. Dao, Yongguang Zhang, Eddie C. Shek, Asha Vellaikal
  • Publication number: 20010018341
    Abstract: A device for implementing a multimedia communication dissemination system is disclosed herein. The communication system integrates heterogeneous satellite transmission systems, local area computer networks, and the public telephone system to implement a flexible, high-speed communication system. The preferred communication dissemination system includes a broadcast server for broadcasting an information signal, a mobile base station for receiving the information signal broadcast from the broadcast server, and a local area network for distributing information received by the mobile base station. The preferred mobile base station includes a receiver for receiving information signals transmitted from a broadcast server, a network interface for distributing processed information signals, and a software proxy process for processing information signals. A software proxy process controls the dissemination of information through the network.
    Type: Application
    Filed: May 3, 2001
    Publication date: August 30, 2001
    Applicant: Hughes Electronics Corporation
    Inventors: Son K. Dao, Yongguang Zhang, Eddie C. Shek, Asha Vellaikal
  • Patent number: 5915207
    Abstract: A device for implementing a multimedia communication dissemination system is disclosed herein. The communication system integrates heterogeneous satellite transmission systems, local area computer networks, and the public telephone system to implement a flexible, high-speed communication system. The preferred communication dissemination system includes a broadcast server for broadcasting an information signal, a mobile base station for receiving the information signal broadcast from the broadcast server, and a local area network for distributing information received by the mobile base station. The preferred mobile base station includes a receiver for receiving information signals transmitted from a broadcast server, a network interface for distributing processed information signals, and a software proxy process for processing information signals. A software proxy process controls the dissemination of information through the network.
    Type: Grant
    Filed: January 22, 1996
    Date of Patent: June 22, 1999
    Assignee: Hughes Electronics Corporation
    Inventors: Son K. Dao, Yongguang Zhang, Eddie C. Shek, Asha Vellaikal