Patents by Inventor Robert H. McCarthy

Robert H. McCarthy 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).

  • Method of selecting a preferred difference image
    Patent number: 4335427
    Abstract: In a radiographic digital subtraction system utilizing a contrast agent for enhancing a difficult-to-image anatomic region of interest, a method of selecting a superior difference image. The difference image selected represents the differential between a pair of digitized radiographic images selected from a series of such images acquired before and after the contrast appears in the region of interest during a dynamic imaging study.
    Type: Grant
    Filed: April 21, 1980
    Date of Patent: June 15, 1982
    Assignee: Technicare Corporation
    Inventors: Willard F. Hunt, Robert H. McCarthy
  • Data channel multiplexing system for CT scanner with rotating source
    Patent number: 4220863
    Abstract: A CT scanner has an outer circular array of stationary radiation detectors for an inner concentrically revolving source of radiation emitted in a fan pattern subtending a number of the detectors. A number of analog signal processing channels equal to the maximum number of subtended detectors at any given time is automatically connected via switching circuitry to receive the outputs of only the detectors within the fan pattern.
    Type: Grant
    Filed: April 1, 1977
    Date of Patent: September 2, 1980
    Assignee: Ohio Nuclear, Inc.
    Inventors: Thomas R. McBride, Robert H. Wake, Robert H. McCarthy