Patents by Inventor Hiroki Shimokawa

Hiroki Shimokawa 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).

  • DMA device having plural buffers storing transfer request information and DMA transfer method
    Patent number: 8065449
    Abstract: A Direct Memory Access (DMA) device includes a first buffer which holds a first transfer information required for a first transfer request, and a second buffer which holds a second transfer information required for a second transfer request, and a transfer request comparison circuit which determines whether or not a current transfer request, which is newly inputted, matches with the first transfer request or the second transfer request.
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: November 22, 2011
    Assignee: Renesas Electronics Corporation
    Inventor: Hiroki Shimokawa
  • DMA device having plural buffers storing transfer request information and DMA transfer method
    Publication number: 20100064071
    Abstract: A Direct Memory Access (DMA) device includes a first buffer which holds a first transfer information required for a first transfer request, and a second buffer which holds a second transfer information required for a second transfer request, and a transfer request comparison circuit which determines whether or not a current transfer request, which is newly inputted, matches with the first transfer request or the second transfer request.
    Type: Application
    Filed: August 11, 2009
    Publication date: March 11, 2010
    Applicant: NEC Electronics Corporation
    Inventor: Hiroki Shimokawa