Patents by Inventor Ralph Langen

Ralph Langen 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).

  • Image sensor signal defect correction
    Patent number: 6940549
    Abstract: In a method of correcting defects in image data comprising an array of pixels, the intensity of pixels of the image data in each side of the defect is sampled (5), differences between the samples intensities are calculated (6) to generate intensity difference signals (D1-D4) indicative of intensity differences across and on respective sides of the defect, and the defect is corrected (7-11) in dependence on the intensity difference signals (D1-D4). Preferably, depending on the intensity difference signals (D1-D4) either an average correction technique or no defect pixel correction is used, the average correction technique being used if the intensity difference signals do not exceed a predetermined level value (L1,L2).
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: September 6, 2005
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Bartholomeus Goverdina Maria Henricus Dillen, Arjen Gerben Van Der Sijde, Ralph Langen
  • Image sensor signal defect correction
    Publication number: 20020012476
    Abstract: In a method of correcting defects in image data comprising an array of pixels, the intensity of pixels of the image data in each side of the defect is sampled (5), differences between the samples intensities are calculated (6) to generate intensity difference signals (D1-D4) indicative of intensity differences across and on respective sides of the defect, and the defect is corrected (7-11) in dependence on the intensity difference signals (D1-D4). Preferably, depending on the intensity difference signals (D1-D4) either an average correction technique or no defect pixel correction is used, the average correction technique being used if the intensity difference signals do not exceed a predetermined level value (L1, L2).
    Type: Application
    Filed: June 21, 2001
    Publication date: January 31, 2002
    Inventors: Bartholomeus Goverdina Maria Henricus Dillen, Arjen Gerben Van Der Sijde, Ralph Langen