Patents by Inventor Toshifumi Oota

Toshifumi Oota 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).

  • Traffic signal control apparatus optimizing signal control parameter by rolling horizon scheme
    Patent number: 6339383
    Abstract: In a traffic signal control apparatus that can correspond to sudden change in the traffic status, traffic information is collected from a sensor provided at the road to obtain the status of a street intersection from the past to the future as profile data. By the rolling horizon scheme, optimization of the signal timing is carried out. The collect cycle of traffic information and the cycle of optimization are defined independently, and the cycle of optimization is set variable according to the cycle of signal control or the traffic status.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: January 15, 2002
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Masafumi Kobayashi, Tsutomu Usami, Toshifumi Oota