Patents by Inventor John D. Mertens

John D. Mertens 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).

  • Coincidence detector for a PET scanner
    Patent number: 5241181
    Abstract: A PET scanner includes a coincidence detector circuit which compares time markers produced by a ring of detector modules. Detector module outputs are sampled every 250 nanoseconds and assembled into event data packets which are time multiplexed through the coincidence detector circuit. The coincidence detector circuit is formed around a set of ASICs which perform the comparisons necessary to detect coincidence events. Coincidence event data packets are sorted into sinograms and used to reconstruct images.
    Type: Grant
    Filed: July 27, 1992
    Date of Patent: August 31, 1993
    Assignee: General Electric Company
    Inventors: John D. Mertens, William L. Bhend