Patents by Inventor Sunan Han

Sunan Han 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).

  • Transmitting broadcast signals in a communication network
    Patent number: 7925155
    Abstract: In one embodiment, a facilitating signal broadcasting includes receiving a first copy of a signal at a first selector of a first headend, where the first copy is received through a first receive pipe of a first ring. A second copy of the signal is received at the first selector, where the second copy is received through a second receive pipe of a second ring. The first selector selects either the first copy or the second copy. The selected copy is sent through a first transmit pipe of the first ring.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: April 12, 2011
    Assignee: Fujitsu Limited
    Inventors: Sunan Han, Wilson Kit-Man Chan
  • Transmitting Broadcast Signals In A Communication Network
    Publication number: 20090083822
    Abstract: In one embodiment, a facilitating signal broadcasting includes receiving a first copy of a signal at a first selector of a first headend, where the first copy is received through a first receive pipe of a first ring. A second copy of the signal is received at the first selector, where the second copy is received through a second receive pipe of a second ring. The first selector selects either the first copy or the second copy. The selected copy is sent through a first transmit pipe of the first ring.
    Type: Application
    Filed: September 20, 2007
    Publication date: March 26, 2009
    Inventors: Sunan Han, Wilson Kit-Man Chan