Patents by Inventor Yo Fukase

Yo Fukase 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).

  • System which achieves efficient utilization of buses for selectively interconnecting communication lines
    Patent number: 5422886
    Abstract: A system for selectively interconnecting a plurality of communication lines, each of which is adapted for transmitting communication signals, includes a plurality of port buses connected to the communication lines through a plurality of interface circuits and to a loop bus through a plurality of switching units. The loop bus forms a loop shape. The communication signals are supplied to the loop bus through one of the port buses and circulate as a loop bus signal along the loop bus. Each of switching units distributes the loop bus signals between the another one of the part buses and the loop bus. On the other one of the port buses, the loop bus signals are sent as the communication signals.
    Type: Grant
    Filed: March 31, 1994
    Date of Patent: June 6, 1995
    Assignee: NEC Corporation
    Inventors: Katsumi Naito, Yo Fukase