Patents by Inventor Marc D. Bishop

Marc D. Bishop 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).

  • Patent number: 4473843
    Abstract: An X-ray detector receives X-ray radiation from an object under examination and generates a detector image thereof. An image intensifier including a screen enhances the detector image and generates an image intensifier image which emits light. A video camera views the image intensifier image and generates a video signal comprised of frames of digital data. These data describe the signal levels of the image intensifier image. A display device connected to the camera receives the video signal and displays an image in accordance with the distribution of X-ray radiation. An iris is arranged between the image intensifier and the video camera. The iris has an aperture of variable size for controlling the intensity of light transmitted from the image intensifier to the video camera. A control circuit is provided for controlling the aperture of the iris.
    Type: Grant
    Filed: July 20, 1982
    Date of Patent: September 25, 1984
    Assignee: Siemens Gammasonics, Inc.
    Inventors: Marc D. Bishop, Oreste J. Lucchesi