Patents by Inventor Masumi Fujino

Masumi Fujino 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).

  • Control for timed access of devices to a system bus
    Patent number: 6493775
    Abstract: A bus control device having a plurality of devices such as a processor or a DMAC which can be a bus master accessing a system bus. When the processor transfers data to a memory or a processing circuit, a system bus controller for the processor and a system bus controller for the memory or a system bus controller for the processing circuit access the system bus within an accessible minimum time with each of input/output signals. When the DMAC transfers data to the memory or the processing circuit, a system bus controller for the DMAC and the system bus controller for the memory or the system bus controller for the processing circuit access the system bus within the accessible minimum time with each of the input/output signals.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: December 10, 2002
    Assignee: Fujitsu Limited
    Inventors: Naomi Yamazaki, Ryoetsu Nakajima, Masumi Fujino
  • BUS CONTROL DEVICE
    Publication number: 20020069311
    Abstract: A bus control device having a plurality of devices such as a processor or a DMAC which can be a bus master accessing a system bus. When the processor transfers data to a memory or a processing circuit, a system bus controller for the processor and a system bus controller for the memory or a system bus controller for the processing circuit access the system bus within an accessible minimum time with each of input/output signals. When the DMAC transfers data to the memory or the processing circuit, a system bus controller for the DMAC and the system bus controller for the memory or the system bus controller for the processing circuit access the system bus within the accessible minimum time with each of the input/output signals.
    Type: Application
    Filed: January 19, 1999
    Publication date: June 6, 2002
    Inventors: NAOMI YAMAZAKI, RYOETSU NAKAJIMA, MASUMI FUJINO