Patents by Inventor Kiyoshi Tusji

Kiyoshi Tusji 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).

  • Circuit for preventing high-intensity false color caused by color separation filters
    Patent number: 4974066
    Abstract: A luminance signal and a color signal are separated from a color picture signal output from an imaging device with a plurality of color filters mounted thereon. The color filters are saturated at different intensity levels. This luminance signal is delayed to generate two delayed signals that respectively cover the front and rear edges of the color signal and a delayed signal that covers the interval between these edges. The color signal is suppressed by these delayed signals when the incident light has a high intensity, thereby preventing false color from occurring due to the incident light having a high intensity.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: November 27, 1990
    Assignee: Olympus Optical Co., Ltd.
    Inventor: Kiyoshi Tusji