Patents by Inventor Shinshi Kuno

Shinshi Kuno 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).

  • Optical transmission system and optical transmission apparatus used therefor
    Patent number: 6748173
    Abstract: Optical transmission being performed by frequency modulating frequency-division-multiplexed multi-channel signals as a single unit, distortion that is caused by a ripple-shaped group delay deviation in a transmitter 2, a receiver 4 and an optical link 3 is reduced by providing a level adjuster 2a for adjusting the level of frequency-division-multiplexed multi-channel signals input to the FM modulator 2b, and by increasing the input level of multi-channel signals to the FM modulator 2b by level adjusting means 2a to enlarge the bandwidth of FM signal, in the case where the number of channels is small.
    Type: Grant
    Filed: January 9, 2001
    Date of Patent: June 8, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshikazu Ishii, Susumu Kirii, Hideto Takahashi, Kuniharu Itakura, Shinshi Kuno
  • Optical transmission system and optical transmission apparatus used therefor
    Publication number: 20010008451
    Abstract: Optical transmission being performed by frequency modulating frequency-division-multiplexed multi-channel signals as a single unit, distortion that is caused by a ripple-shaped group delay deviation in a transmitter 2, a receiver 4 and an optical link 3 is reduced by providing a level adjuster 2a for adjusting the level of frequency-division-multiplexed multi-channel signals input to the FM modulator 2b, and by increasing the input level of multi-channel signals to the FM modulator 2b by level adjusting means 2a to enlarge the bandwidth of FM signal, in the case where the number of channels is small.
    Type: Application
    Filed: January 9, 2001
    Publication date: July 19, 2001
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshikazu Ishii, Susumu Kirii, Hideto Takahashi, Kuniharu Itakura, Shinshi Kuno