Patents by Inventor Tomohide Yamamoto

Tomohide Yamamoto 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: 8614982
    Abstract: A network station stores therein a frame scheduling table including a plurality of pieces of scheduling information obtained by scheduling, in advance, transmission/reception timing of wireless frames that are transmitted/received by wireless communication terminals each of which is configured so as to implement a plurality of wireless communication methods, while using a wireless communication method corresponding to the network side and while using a wireless communication method corresponding to the local side. When the network station receives a notification indicating that a radio wave interference is detected, from any of the wireless communication terminals managed by the network station, the network station changes the frame scheduling information currently assigned to the wireless communication terminal being the transmission source of the notification indicating that the radio wave interference is detected.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: December 24, 2013
    Assignee: Fujitsu Limited
    Inventors: Hidetoshi Abeta, Kazuhiro Muraoka, Tomohide Yamamoto
  • Publication number: 20110235612
    Abstract: A network station stores therein a frame scheduling table including a plurality of pieces of scheduling information obtained by scheduling, in advance, transmission/reception timing of wireless frames that are transmitted/received by wireless communication terminals each of which is configured so as to implement a plurality of wireless communication methods, while using a wireless communication method corresponding to the network side and while using a wireless communication method corresponding to the local side. When the network station receives a notification indicating that a radio wave interference is detected, from any of the wireless communication terminals managed by the network station, the network station changes the frame scheduling information currently assigned to the wireless communication terminal being the transmission source of the notification indicating that the radio wave interference is detected.
    Type: Application
    Filed: June 7, 2011
    Publication date: September 29, 2011
    Applicant: FUJITSU LIMITED
    Inventors: Hidetoshi Abeta, Kazuhiro Muraoka, Tomohide Yamamoto
  • Patent number: 7372760
    Abstract: A semiconductor device includes a first power supply terminal, a second power supply terminal, a comparison circuit coupled to the first power supply terminal and the second power supply terminal to produce at an output node thereof a signal responsive to a difference between a potential of the first power supply terminal and a potential of the second power supply terminal, and a core circuit coupled to the output node of the comparison circuit to perform a test operation in response to the signal.
    Type: Grant
    Filed: August 22, 2005
    Date of Patent: May 13, 2008
    Assignee: Fujitsu Limited
    Inventors: Yoshiaki Nagatomi, Kenichi Kawabata, Norihiro Nakatsuhama, Tetsuya Yoshida, Naoya Watanabe, Tomohiro Wada, Tomohide Yamamoto
  • Patent number: 7149830
    Abstract: A semiconductor device in which input terminals for external interrupts can be set as desired. A plurality of external input terminals can be specified as interrupt terminals which output an input signal to an external interrupt circuit via an interrupt terminal selector. A selection control circuit specifies whether a plurality of external input terminals are used as interrupt terminals. According to the selection control circuit, the interrupt terminal selector outputs to the external interrupt circuit an input signal entered from an external input terminal which is specified as an interrupt terminal out of the plurality of external input terminals.
    Type: Grant
    Filed: September 23, 2004
    Date of Patent: December 12, 2006
    Assignee: Fujitsu Limited
    Inventors: Norihiro Nakatsuhama, Yoshiaki Nagatomi, Kenichi Kawabata, Tomohide Yamamoto, Kenji Nakata, Hironori Aono, Masatoshi Konishi
  • Publication number: 20060268636
    Abstract: A semiconductor device includes a first power supply terminal, a second power supply terminal, a comparison circuit coupled to the first power supply terminal and the second power supply terminal to produce at an output node thereof a signal responsive to a difference between a potential of the first power supply terminal and a potential of the second power supply terminal, and a core circuit coupled to the output node of the comparison circuit to perform a test operation in response to the signal.
    Type: Application
    Filed: August 22, 2005
    Publication date: November 30, 2006
    Inventors: Yoshiaki Nagatomi, Kenichi Kawabata, Norihiro Nakatsuhama, Tetsuya Yoshida, Naoya Watanabe, Tomohiro Wada, Tomohide Yamamoto
  • Publication number: 20060056426
    Abstract: An access router placed at an entrance of a core network to house an access network through which a host connects to the core network, including: a creating unit for creating network information which has control information to control connection of a host to the access network; and a transmitting unit for sending network information which has the control information to a host connected to the access network.
    Type: Application
    Filed: January 7, 2005
    Publication date: March 16, 2006
    Inventors: Hiroshi Wakameda, Yoshiyuki Seguchi, Tomohide Yamamoto
  • Publication number: 20050188141
    Abstract: A semiconductor device in which input terminals for external interrupts can be set as desired. A plurality of external input terminals can be specified as interrupt terminals which output an input signal to an external interrupt circuit via an interrupt terminal selector. A selection control circuit specifies whether a plurality of external input terminals are used as interrupt terminals. According to the selection control circuit, the interrupt terminal selector outputs to the external interrupt circuit an input signal entered from an external input terminal which is specified as an interrupt terminal out of the plurality of external input terminals.
    Type: Application
    Filed: September 23, 2004
    Publication date: August 25, 2005
    Applicant: FUJITSU LIMITED
    Inventors: Norihiro Nakatsuhama, Yoshiaki Nagatomi, Kenichi Kawabata, Tomohide Yamamoto, Kenji Nakata, Hironori Aono, Masatoshi Konishi