Patents by Inventor Chum-Shiow Chen

Chum-Shiow Chen 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).

  • Patent number: 7310479
    Abstract: A multi-wavelength optical packet switch system with shared output buffer is disclosed, which includes N input fibers, N output fibers, an input device, a wavelength converter, a wavelength router, an output buffer, a wavelength classifier and a control device. The present invention utilizes both the tunable wavelength converter and the wavelength router to accomplish multi-wavelength optical packet switching. The present invention also provides the output buffer connected to the output of the wavelength router for being shared by optical packets in all wavelengths (channels), thereby avoiding the packet loss due to output conflicts and reducing the cost of establishing the buffer.
    Type: Grant
    Filed: January 5, 2004
    Date of Patent: December 18, 2007
    Assignee: Industrial Technology Research Institute
    Inventors: Shi-Wei Lee, Yi-Ching Liaw, Chum-Shiow Chen
  • Publication number: 20050063703
    Abstract: A multi-wavelength optical packet switch system with shared output buffer is disclosed, which includes N input fibers, N output fibers, an input device, a wavelength converter, a wavelength router, an output buffer, a wavelength classifier and a control device. The present invention utilizes both the tunable wavelength converter and the wavelength router to accomplish multi-wavelength optical packet switching. The present invention also provides the output buffer connected to the output of the wavelength router for being shared by optical packets in all wavelengths (channels), thereby avoiding the packet loss due to output conflicts and reducing the cost of establishing the buffer.
    Type: Application
    Filed: January 5, 2004
    Publication date: March 24, 2005
    Applicant: Industrial Technology Research Institute
    Inventors: Shi-Wei Lee, Yi-Ching Liaw, Chum-Shiow Chen