Patents by Inventor Sooyoung Chai

Sooyoung Chai 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).

  • Patent number: 3982274
    Abstract: A color coding filter is combined with a single area-imaging charge-coupled-device (CCD) to form a color television camera. Three-phase CCD of frame transfer type provides a 2:1 interlace scanning format, and the color filter is designed for compatibility with this format. The filter is formed from a plurality of different color transmissivity areas arranged in a specific grid-like pattern to provide the distinct filter characteristics required for each of the two interlaced fields. With this filtering, the CCD generates a continuous luminance and two line-sequential chrominance (color difference) signals.
    Type: Grant
    Filed: September 3, 1974
    Date of Patent: September 21, 1976
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventor: Sooyoung Chai