Patents Assigned to Rank Pullin Control Limited
  • Imaging apparatus
    Patent number: 4924094
    Abstract: Conventional scanners used in thermal imagers scan the image along curved lines rather than straight lines, resulting in image curvature in the display. The invention eliminates this by processing the video signal from the scanner to compose an output video signal which represents scanning along straight lines (18) across the image. The output signal is composed of a number of successive portions (A to F) each derived from a different line or lines of the video signal provided by the scanner.
    Type: Grant
    Filed: March 19, 1987
    Date of Patent: May 8, 1990
    Assignee: Rank Pullin Control Limited
    Inventor: William T. Moore
  • Parallax correction apparatus for a head-up display
    Patent number: 4752824
    Abstract: Thermal imaging apparatus particularly but not exclusively for use on an aircraft with a head-up display is provided with signal processing means which progressively expands or compresses the image in the vertical and/or horizontal direction to compensate for parallax arising from the difference in the positions of the observer and the scanner. The adjustment is performed, in the preferred embodiment, as a function of height of the aircraft.
    Type: Grant
    Filed: March 20, 1987
    Date of Patent: June 21, 1988
    Assignee: Rank Pullin Control Limited
    Inventor: William T. Moore