Patents by Inventor Ataru Shimodaira

Ataru Shimodaira 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).

  • Computer system in which a bus controller varies data transfer rate over a bus based on a value of a subset of address bits and on a stored value
    Patent number: 5280587
    Abstract: A computer system includes a bus and a plurality of devices coupled to the bus. A CPU within the bus controller generates addresses for data transfers to and from the devices. A bus controller generates control signals for the data transfers. A data transfer rate controlled by the control signals is varied so that the data transfer rate is optimal for data transfers to and from each device. The data transfer rate for a data transfer to or from a first device is based on a subset of address bits used by the CPU to address the first device.
    Type: Grant
    Filed: March 31, 1992
    Date of Patent: January 18, 1994
    Assignee: VLSI Technology, Inc.
    Inventors: Ataru Shimodaira, Walter H. Potts