Patents by Inventor Wing Loom Chek

Wing Loom Chek 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).

  • Adaptive lighting control apparatus for illuminating a variable-speed web for inspection
    Patent number: 5870203
    Abstract: A lighting control apparatus for illuminating a moving variable-speed web for inspection with a camera is provided. The apparatus is comprised of a detecting device for detecting the positioning of the web; a lighting device, aligned with the camera, for emitting a light to illuminate the web; a calculating device for calculating the speed of the web; and a control device which controls the emission of light by the lighting device as a function of the speed of the web.
    Type: Grant
    Filed: March 15, 1996
    Date of Patent: February 9, 1999
    Assignees: Sony Corporation, Sony Electronics, Inc
    Inventors: Chinchuan Chiu, Wing Loom Chek, Philip Paolella