Patents by Inventor Michiya Takemoto

Michiya Takemoto 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).

  • Station side communication device
    Patent number: 7653080
    Abstract: An allocation determining unit determines a bandwidth allocation for each of a plurality of subscriber devices in each data-collection cycle. A history managing unit takes a history of a request increment from a bandwidth request amount acquired from more than one time of data collections and an allocation amount allocated by the allocation determining unit for the bandwidth request amount, and presents a bandwidth request amount for the allocation determination to the allocation determining unit by dividing the bandwidth request amount into a plurality of request increments indicated by the history.
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: January 26, 2010
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Michiya Takemoto, Masaki Tanaka, Ken Murakami, Hiroaki Mukai
  • Optical multi-branch communication system
    Patent number: 7496294
    Abstract: A primary station equipment unit transmits, to a secondary station equipment unit, a message transmission enable signal granting transmission of a PST message from the secondary station equipment unit, when a predetermined period of time defined for transmission elapses after the primary station equipment unit transmitted a downstream PST message in a redundancy switching process corresponding to the secondary station equipment unit.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: February 24, 2009
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Michiya Takemoto, Toshikazu Yoshida, Hiroaki Mukai, Yoshihiro Asashiba, Hiroshi Ichibangase, Seiji Kozaki, Mitsuyoshi Iwasaki
  • Packet transmission system, packet transmission method, packet transmission program, and recording medium on which the recorded program is recorded
    Patent number: 7403518
    Abstract: An OLT 1 sequentially allocates transmission permission of a packet on an upstream transmission line to a plurality of ONUs 2 registered, and performs packet communication in a simplified method with control by using a first timer for detecting a packet signal and a second timer for controlling transmission permission time, in order to transmit an IP packet of variable length without mounting a function of complex processing for analyzing an upstream packet in the OLT 1.
    Type: Grant
    Filed: March 18, 2002
    Date of Patent: July 22, 2008
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Mitsuru Tsuchida, Yoshihiro Asashiba, Ryusuke Kawate, Eiichi Horiuchi, Hiroaki Mukai, Michiya Takemoto
  • Station side communication device
    Publication number: 20060159040
    Abstract: An allocation determining unit determines a bandwidth allocation for each of a plurality of subscriber devices in each data-collection cycle. A history managing unit takes a history of a request increment from a bandwidth request amount acquired from more than one time of data collections and an allocation amount allocated by the allocation determining unit for the bandwidth request amount, and presents a bandwidth request amount for the allocation determination to the allocation determining unit by dividing the bandwidth request amount into a plurality of request increments indicated by the history.
    Type: Application
    Filed: September 11, 2003
    Publication date: July 20, 2006
    Applicant: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Michiya Takemoto, Masaki Tanaka, Ken Murakami, Hiroaki Mukai
  • Packet transmission system, packet transmission method, packet transmission program, and recording medium on which the recorded program is recorded
    Publication number: 20040196869
    Abstract: An OLT 1 sequentially allocates transmission permission of a packet on an upstream transmission line to a plurality of ONUs 2 registered, and performs packet communication in a simplified method with control by using a first timer for detecting a packet signal and a second timer for controlling transmission permission time, in order to transmit an IP packet of variable length without mounting a function of complex processing for analyzing an upstream packet in the OLT 1.
    Type: Application
    Filed: December 29, 2003
    Publication date: October 7, 2004
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventors: Mitsuru Tsuchida, Yoshihiro Asashiba, Ryusuke Kawate, Eiichi Horiuchi, Hiroaki Mukai, Michiya Takemoto
  • Optical multi-branch communication system
    Publication number: 20030002114
    Abstract: A primary station equipment unit 51 transmits, to a secondary station equipment unit 52, a message transmission enable signal granting transmission of a PST message from the secondary station equipment unit 52, when a predetermined period of time defined for transmission elapses after the primary station equipment unit 51 transmitted a downstream PST message in a redundancy switching process corresponding to the secondary station equipment unit 52.
    Type: Application
    Filed: July 30, 2002
    Publication date: January 2, 2003
    Inventors: Michiya Takemoto, Toshikazu Yoshida, Hiroaki Mukai, Yoshihiro Asashiba, Hiroshi Ichibangase, Seiji Kozaki, Mitsuyoshi Iwasaki