Patents by Inventor Hidenobu Fukushima

Hidenobu Fukushima 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).

  • Bit assignment in a communication system and communication method
    Patent number: 7801170
    Abstract: A communication system sets the data transmission time which is the time suitable for data transmission and the quasi-data transmission time which is the time other than the data transmission time in a period in accordance with the transmission path. Further, bits are assigned and transmitted in such a manner that data for one period can be transmitted during the data transmission period for that period and the data can be uniformly distributed over the data transmission time for the period.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: September 21, 2010
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Wataru Matsumoto, Hidenobu Fukushima, Masafumi Narikawa
  • Communication system and communication method
    Patent number: 7688866
    Abstract: In the communication system which performs the data communication by the discrete multi-tone modem scheme between a plurality of data communication units using the time-division half-duplex communication function, the ratio between the data transmission time suitable for data communication and the quasi-data transmission time dynamically changes within one period. Further, bits are assigned in such a manner that the data of one period can be transmitted during the data transmission time of that period. Dummy bits are assigned to the portions of the data transmission time to which the data to be transmitted has not been assigned.
    Type: Grant
    Filed: February 6, 2007
    Date of Patent: March 30, 2010
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Wataru Matsumoto, Hidenobu Fukushima, Masafumi Narikawa
  • Bit assignment in a communication system and communication method
    Patent number: 7457309
    Abstract: A communication system sets the data transmission time which is the time suitable for data transmission and the quasi-data transmission time which is the time other than the data transmission time in a period in accordance with the transmission path. Further, bits are assigned and transmitted in such a manner that data for one period can be transmitted during the data transmission period for that period and the data can be uniformly distributed over the data transmission time for the period.
    Type: Grant
    Filed: April 27, 2000
    Date of Patent: November 25, 2008
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Wataru Matsumoto, Hidenobu Fukushima, Masafumi Narikawa
  • Bit assignment in a communication system and communication method
    Publication number: 20070195828
    Abstract: A communication system sets the data transmission time which is the time suitable for data transmission and the quasi-data transmission time which is the time other than the data transmission time in a period in accordance with the transmission path. Further, bits are assigned and transmitted in such a manner that data for one period can be transmitted during the data transmission period for that period and the data can be uniformly distributed over the data transmission time for the period.
    Type: Application
    Filed: April 13, 2007
    Publication date: August 23, 2007
    Inventors: Wataru Matsumoto, Hidenobu Fukushima, Masafumi Narikawa
  • Communication System and Communication Method
    Publication number: 20070127524
    Abstract: In the communication system which performs the data communication by the discrete multi-tone modem scheme between a plurality of data communication units using the time-division half-duplex communication function, the ratio between the data transmission time suitable for data communication and the quasi-data transmission time dynamically changes within one period. Further, bits are assigned in such a manner that the data of one period can be transmitted during the data transmission time of that period. Dummy bits are assigned to the portions of the data transmission time to which the data to be transmitted has not been assigned.
    Type: Application
    Filed: February 6, 2007
    Publication date: June 7, 2007
    Inventors: Wataru MATSUMOTO, Hidenobu Fukushima, Masafumi Narikawa
  • Communication system and communication method
    Patent number: 7212552
    Abstract: In the communication system which performs the data communication by the discrete multi-tone modem scheme between a plurality of data communication units using the time-division half-duplex communication function, the ratio between the data transmission time suitable for data communication and the quasi-data transmission time dynamically changes within one period. Further, bits are assigned in such a manner that the data of one period can be transmitted during the data transmission time of that period. Dummy bits are assigned to the portions of the data transmission time to which the data to be transmitted has not been assigned.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: May 1, 2007
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Wataru Matsumoto, Hidenobu Fukushima, Masafumi Narikawa
  • Communication system and communication method
    Publication number: 20040190551
    Abstract: In the communication system which performs the data communication by the discrete multi-tone modem scheme between a plurality of data communication units using the time-division half-duplex communication function, the ratio between the data transmission time suitable for data communication and the quasi-data transmission time dynamically changes within one period. Further, bits are assigned in such a manner that the data of one period can be transmitted during the data transmission time of that period. Dummy bits are assigned to the portions of the data transmission time to which the data to be transmitted has not been assigned.
    Type: Application
    Filed: April 16, 2004
    Publication date: September 30, 2004
    Applicant: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Wataru Matsumoto, Hidenobu Fukushima, Masafumi Narikawa
  • Communication system and communication method
    Patent number: 6782005
    Abstract: In the communication system which performs the data communication by the discrete multi-tone modem scheme between a plurality of data communication units using the time-division half-duplex communication function, the ratio between the data transmission time suitable for data communication and the quasi-data transmission time dynamically changes within one period. Further, bits are assigned in such a manner that the data of one period can be transmitted during the data transmission time of that period. Dummy bits are assigned to the portions of the data transmission time to which the data to be transmitted has not been assigned.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: August 24, 2004
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Wataru Matsumoto, Hidenobu Fukushima, Masafumi Narikawa