Patents by Inventor Yong Liang Liu

Yong Liang Liu 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).

  • Methods and devices for maintaining a domain
    Patent number: 9137095
    Abstract: The invention proposes methods and devices for managing domains. The domains comprise a plurality of member devices, and the method comprises the steps of: storing (S500, S501), by a first domain manager (M1), domain management information (P1, P2, P3, P4 and P5) in said plurality of member devices; and obtaining (S510, S511), by a second domain manager (M2), said domain management information from at least one of said plurality of member devices. In comparison with the prior art, where the domain management information is maintained in the domain authority, the embodiment decreases the work load of the domain authority and provides conveniences.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: September 15, 2015
    Assignee: Koninklijke Philips N.V.
    Inventors: Yong Liang Liu, Fulong Ma, Hui Li, Changjie Wang
  • System and method for data transmission
    Patent number: 9026781
    Abstract: A method for transmission data in a system is provided. The system includes a first device, plurality of second devices, and plurality of third devices, the method includes steps of encrypting the data with a first key and encrypting the first key with a second key at the first device, sending the encrypted data from the first device to the second device, decrypting the second key and encrypting the first key with a third key by the second device, sending the encrypted data from the second device to the third device, and decrypting the third key and the first key by the third device.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: May 5, 2015
    Assignee: Thomson Licensing
    Inventors: Yong Liang Liu, Guang Hua Zhou, Yi Zhang
  • METHODS AND DEVICES FOR MAINTAINING A DOMAIN
    Publication number: 20130227649
    Abstract: The invention proposes methods and devices for managing domains. The domains comprise a plurality of member devices, and the method comprises the steps of: storing (S500, S501), by a first domain manager (M1), domain management information (P1, P2, P3, P4 and P5) in said plurality of member devices; and obtaining (S510, S511), by a second domain manager (M2), said domain management information from at least one of said plurality of member devices. In comparison with the prior art, where the domain management information is maintained in the domain authority, the embodiment decreases the work load of the domain authority and provides conveniences.
    Type: Application
    Filed: November 15, 2011
    Publication date: August 29, 2013
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Yong Liang Liu, Fulong Ma, Hui Li, Changjie Wang
  • SYSTEM AND METHOD FOR DATA TRANSMISSION
    Publication number: 20100287367
    Abstract: A method for transmission data in a system is provided. The system includes a first device, plurality of second devices, and plurality of third devices, the method includes steps of encrypting the data with a first key and encrypting the first key with a second key at the first device, sending the encrypted data from the first device to the second device, decrypting the second key and encrypting the first key with a third key by the second device, sending the encrypted data from the second device to the third device, and decrypting the third key and the first key by the third device.
    Type: Application
    Filed: December 29, 2008
    Publication date: November 11, 2010
    Inventors: Yong Liang Liu, Guang Hua Zhou, Yi Zhang