Patents by Inventor Miho Nonomura

Miho Nonomura 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).

  • Data transfer control system for controlling data transfer between a buffer memory and input/output devices
    Patent number: 4754399
    Abstract: An input/output control system has a control unit including a first controller connected between a channel and a data buffer for controlling the transfer of data therebetween and a second controller connected between the data buffer and a plurality of input/output devices for controlling the transfer of data therebetween. A start action of the input/output device is effected in an off-line mode from the control unit. The amount of data stored in the data buffer is checked each time the transfer of data occurs between the channel and the data buffer. In the case of a read processing, when the amount of data stored in the data buffer becomes less than a first predetermined value, data is transferred for preload from the input/output devices to the data buffer. In the case of a write processing, when the amount of data stored in the data buffer exceeds a second predetermined value, data is transferred for after-write from the data buffer to the input/output devices.
    Type: Grant
    Filed: December 28, 1984
    Date of Patent: June 28, 1988
    Assignee: Hitachi, Ltd.
    Inventors: Akira Yamamoto, Toru Nishigaki, Miho Nonomura, Takashi Doi