Patents Examined by Safet Metjaail
  • Patent number: 5025312
    Abstract: A method and apparatus are provided for reducing transmission path noise within a video signal so as to provide a noise reduced picture image upon a display. The method comprises the steps of:a. extracting low level picture details and the transmission path noise from the video signal,b. recirculating a fractional component of the extracted low level picture details and the transmission path noise,c. combining the recirculated fractional component with the extracted low level picture details and the transmission path noise to cancel the extracted low level picture details and thereby separate the transmission path noise,d. subtracting the separated transmission path noise from the video signal in the absence of motion of the picture image thereof in order to noise reduce non-moving portions of the picture image of the video signal, ande.
    Type: Grant
    Filed: March 30, 1990
    Date of Patent: June 18, 1991
    Inventor: Yves C. Faroudja