Patents Represented by Attorney Moonray Kojma

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  • Communication system and communication control method
    Patent number: 6952404
    Abstract: A communication control system and method comprising, in one embodiment, a master station connected to a slave station using two redundant buses, wherein command frames having the same content are sent out to the buses and the communication process is changed depending on whether or not the contents of the command frames, when received by the receiving station, are identical.
    Type: Grant
    Filed: November 4, 2002
    Date of Patent: October 4, 2005
    Assignee: Yokogawa Electric Corporation
    Inventors: Shunsuke Hayashi, Hideo Matsukawa, Toyoaki Yokoi