Patents by Inventor Naoto Kidoku

Naoto Kidoku 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).

  • Transmission apparatus
    Patent number: 6928088
    Abstract: A transmission apparatus utilizing an SDH is provided. The transmission apparatus includes a processing unit controlling the transmission apparatus, an SSM extraction unit extracting a first SSM from an input signal, and a selector selecting either of the first SSM and a second SSM set by the processing unit. The transmission apparatus can add an incoming SSM function, for instance, to an external 2 Mbps SSM function in addition to an assumed SSM function. Accordingly, the transmission apparatus can conform to the ITU-T G.781 Recommendation by utilizing a related-art synchronization function.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: August 9, 2005
    Assignee: Fujitsu Limited
    Inventors: Koji Tanonaka, Naoto Kidoku, Motoshi Hamasaki
  • Transmission apparatus
    Publication number: 20020027903
    Abstract: A transmission apparatus utilizing an SDH is provided. The transmission apparatus includes a processing unit controlling the transmission apparatus, an SSM extraction unit extracting a first SSM from an input signal, and a selector selecting either of the first SSM and a second SSM set by the processing unit. The transmission apparatus can add an incoming SSM function, for instance, to an external 2 Mbps SSM function in addition to an assumed SSM function. Accordingly, the transmission apparatus can conform to the ITU-T G.781 Recommendation by utilizing a related-art synchronization function.
    Type: Application
    Filed: March 20, 2001
    Publication date: March 7, 2002
    Inventors: Koji Tanonaka, Naoto Kidoku, Motoshi Hamasaki
  • Synchronization equipment
    Patent number: 6173023
    Abstract: The invention concerns synchronization equipment; more particularly, the invention is directed to the provision of synchronization equipment which, after simple hardware installation and software setting, establishes a synchronization network with an existing network, SDH elements, etc. that do not support SSMB.
    Type: Grant
    Filed: March 11, 1998
    Date of Patent: January 9, 2001
    Assignee: Fujitsu Limited
    Inventors: Koji Tanonaka, Naoto Kidoku, Toshikazu Magome, Hiroyuki Suzuki