Patents by Inventor Keisuke Doumae

Keisuke Doumae 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).

  • Image data processing device and image reading apparatus
    Patent number: 8823995
    Abstract: An image data processing device includes a first integrated circuit, a second integrated circuit, and a third integrated circuit. The first integrated circuit includes a first image processing circuit for first image processing for image data in a first memory, and a first serial interface for direct memory access transfer between the first memory and a third memory. The second integrated circuit includes a second image processing circuit for second image processing for image data in a second memory, and a second serial interface for direct memory access transfer between the second memory and the third memory. The third integrated circuit includes a third image processing circuit for third image processing for image data in the third memory, and a third serial interface for direct memory access transfer between the third memory and the first memory, and between the third memory and the second memory.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: September 2, 2014
    Assignee: PFU Limited
    Inventors: Keisuke Doumae, Akira Iwayama, Hirotake Shinde
  • IMAGE DATA PROCESSING DEVICE AND IMAGE READING APPARATUS
    Publication number: 20140085679
    Abstract: An image data processing device includes a first integrated circuit, a second integrated circuit, and a third integrated circuit. The first integrated circuit includes a first image processing circuit for first image processing for image data in a first memory, and a first serial interface for direct memory access transfer between the first memory and a third memory. The second integrated circuit includes a second image processing circuit for second image processing for image data in a second memory, and a second serial interface for direct memory access transfer between the second memory and the third memory. The third integrated circuit includes a third image processing circuit for third image processing for image data in the third memory, and a third serial interface for direct memory access transfer between the third memory and the first memory, and between the third memory and the second memory.
    Type: Application
    Filed: July 25, 2013
    Publication date: March 27, 2014
    Applicant: PFU LIMITED
    Inventors: Keisuke Doumae, Akira Iwayama, Hirotake Shinde