Patents by Inventor Shin Jeong Hun

Shin Jeong Hun 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).

  • 4-port wavelength selective router
    Patent number: 6999653
    Abstract: The present invention relates to a 4-port wavelength selective router and the add/drop multiplexer using the above router. More particularly, it relates to a 4-port wavelength selective router that can effectively routes counter-propagating signals while suppressing multiple reflections generated in the bidirectional transmission systems and networks.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: February 14, 2006
    Assignee: Korea Advanced Institute of Science & Technology
    Inventors: Chang Hee Lee, Hyun Deok Kim, Tae Won Oh, Shin Jeong Hun, Cho Yun Hee
  • Multi-stage bidirectional optical amplifier
    Patent number: 6952308
    Abstract: A multi-stage bidirectional optical amplifier amplifies counter-propagating signals at the same time, and includes two single-stage bidirectional optical amplifiers, two multiple reflection suppression means, and a mid-stage component.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: October 4, 2005
    Assignee: Korea Advanced Institute of Science & Technology
    Inventors: Chang Hee Lee, Hyun Deok Kim, Tae Won Oh, Shin Jeong Hun, Cho Yun Hee
  • Multi-stage bidirectional optical amplifier
    Publication number: 20020027472
    Abstract: The present invention disclosure a multi-stage bidirectional optical amplifier that amplifies counter-propagating signals at the same time. The multi-stage bidirectional optical amplifier in accordance with the present invention comprises two single-stage bidirectional optical amplifiers(30a, 30b), two multiple reflection suppression means(28a, 28b) and a mid-stage component(42).
    Type: Application
    Filed: July 26, 2001
    Publication date: March 7, 2002
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Chang Hee Lee, Hyun Deok Kim, Tae Won Oh, Shin Jeong Hun, Cho Yun Hee
  • 4-port wavelength selective router
    Publication number: 20020028039
    Abstract: The present invention relates to a 4-port wavelength selective router and the add/drop multiplexer using the above router. More particularly, it relates to a 4-port wavelength selective router that can effectively routes counter-propagating signals while suppressing multiple reflections generated in the bidirectional transmission systems and networks.
    Type: Application
    Filed: July 26, 2001
    Publication date: March 7, 2002
    Applicant: Korea Advanced Institute of Science And Technology
    Inventors: Chang Hee Lee, Hyun Deok Kim, Tae Won Oh, Shin Jeong Hun, Cho Yun Hee