Patents by Inventor Holger Ruckert

Holger Ruckert 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).

  • Video signal processing circuit having an interface for connecting a color correction circuit between a noise reduction circuit and a contour circuit
    Patent number: 5953078
    Abstract: A device for processing video signals includes a noise reduction arrangement and a contour correction arrangement. To improve color correction, a color correction arrangement (11) is arranged between the noise reduction arrangement (10) and the contour correction arrangement (12).
    Type: Grant
    Filed: September 5, 1997
    Date of Patent: September 14, 1999
    Assignee: U.S. Philips Corporation
    Inventors: Michael Senge, Gerhard Wischermann, Holger Ruckert, Manfred Dworatzek
  • Method and apparatus for generating an auxiliary timing signal in the horizontal blanking interval of a video signal
    Patent number: 5008749
    Abstract: An auxiliary signal including a burst of oscillations and a blacker-than-black horizontal synchronizing signal is inserted in the horizontal blanking intervals of an HDTV video signal by first generating a digital auxiliary signal in a PROM operating at a clock frequency of 27 MHz. If the video signal from which the clock frequency and other control signals are derived is an analog video signal, the digital auxiliary signal is converted to an analog signal, filtered and clamped before it is additively combined with the analog video signal which has been similarly clamped. In that case the digital auxiliary signal stored in the PROM is predistorted so as to compensate for the damping effects of digital-to-analog conversion and low-pass filtering.
    Type: Grant
    Filed: March 2, 1990
    Date of Patent: April 16, 1991
    Assignee: BTS Broadcast Television Systems GmbH
    Inventor: Holger Ruckert