Patents by Inventor Yoshihiroi Saito

Yoshihiroi Saito 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).

  • Eye detection apparatus and image display apparatus
    Patent number: 7414791
    Abstract: What is disclosed is an eye detection apparatus which can detect the pupil position accurately. The apparatus has an image taking unit that picks up an image of an eye and a pupil detection unit that detects the position of the pupil in the eye based on an image picked up by the image taking portion. The pupil detection unit determines the pupil position based on images picked up by the image taking unit in a plurality of states.
    Type: Grant
    Filed: October 6, 2005
    Date of Patent: August 19, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takashi Urakawa, Yoshihiroi Saito, Akinari Takagi