Patents by Inventor Youichi Isoe

Youichi Isoe 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).

  • Character information display apparatus for a partial and a full-screen display
    Patent number: 5671019
    Abstract: A display apparatus for displaying a partial-screen image within a full-screen image includes a change-over switch for exchanging the video signals for the full-screen and partial-screen displays. When only the full-screen image is displayed, character information corresponding to the full-screen image can be turned on or off. When both the full-screen image and the partial-screen image are displayed, a cyclic operation can be performed under control of a controller. The cycle includes: 1) turning on the display of character information corresponding to the full-screen image, 2) turning on the display of character information corresponding to the partial-screen image, and 3) turning off the display of character information. The display apparatus is also capable of turning on the display of character information corresponding to the full-screen image when a mute of sound is turned on and turning off the display of character information when the mute of sound is subsequently turned off.
    Type: Grant
    Filed: December 23, 1994
    Date of Patent: September 23, 1997
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Youichi Isoe, Tatsuo Morishita