Patents by Inventor Sadayuki Tsugawa

Sadayuki Tsugawa 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).

  • Method and apparatus for detecting deviation of automobile from lane
    Patent number: 6614469
    Abstract: It is detected whether an automobile is running in a direction departing from a traffic lane, has already departed from the lane, or is running in a direction recovering from departure, by mounting on the automobile a steering angle detecting device for detecting an actual steering angle based on steering wheel operation of a driver, a television camera for taking pictures of the lane and a computer for processing the pictures taken by the television camera. The television camera is used to take pictures of markers on the lane while the automobile is running on the lane, and video signals are input into the computer.
    Type: Grant
    Filed: January 10, 2000
    Date of Patent: September 2, 2003
    Assignee: Japan as represented by Director General of Agency of Industrial Science and Technology
    Inventors: Shin Kato, Sadayuki Tsugawa