Patents by Inventor Seiji Sonoda

Seiji Sonoda 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).

  • Apparatus for processing signals from sensors incorporated in in-vehicle power train and system using the apparatus
    Patent number: 7239956
    Abstract: An apparatus is provided for processing a signal outputted by a sensor installed in a power train control system mounted in a vehicle, the signal indicating an operating state of the power train and formatted in a fixed-point type of data. The apparatus comprises an A/D (analog to digital) converter, a DMA (direct memory access) controller and a transfer unit. The A/D converter converts the signal outputted by the sensor into a signal expressed as fixed-point type of digital data. The DMA controller is equipped with a format converter converting the fixed-point type of digital data to a floating-point type of digital data. The transfer unit transfers the floating-point type of digital data to a memory. The floating-point type of digital data are read out from the memory and subjected to floating-point type of digital processing for controlling the power train.
    Type: Grant
    Filed: December 6, 2005
    Date of Patent: July 3, 2007
    Assignee: Denso Corporation
    Inventors: Seiji Sonoda, Takahiro Goto
  • Apparatus for processing signals from sensors incorporated in in-vehicle power train and system using the apparatus
    Publication number: 20060123071
    Abstract: An apparatus is provided for processing a signal outputted by a sensor installed in a power train control system mounted in a vehicle, the signal indicating an operating state of the power train and formatted in a fixed-point type of data. The apparatus comprises an A/D (analog to digital) converter, a DMA (direct memory access) controller and a transfer unit. The A/D converter converts the signal outputted by the sensor into a signal expressed as fixed-point type of digital data. The DMA controller is equipped with a format converter converting the fixed-point type of digital data to a floating-point type of digital data. The transfer unit transfers the floating-point type of digital data to a memory. The floating-point type of digital data are read out from the memory and subjected to floating-point type of digital processing for controlling the power train.
    Type: Application
    Filed: December 6, 2005
    Publication date: June 8, 2006
    Applicant: DENSON CORPORATION
    Inventors: Seiji Sonoda, Takahiro Goto