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On June 2, 2015, the USPTO issued U.S. Patent Number 9,046,465 to Rapiscan Systems, Inc., which was successfully prosecuted by Novel IP.
02 Jun, 2015
News

The '147 patent is directed towards a computed tomography system having non-rotating X-ray sources that are programmed to optimize the source firing pattern. In one embodiment, the CT system is a fast cone-beam CT scanner which uses a fixed ring of multiple sources and fixed rings of detectors in an offset geometry. It should be appreciated that the source firing pattern is effectuated by a controller, which implements methods to determine a source firing pattern that are adapted to geometries where the X-ray sources and detector geometry are offset.

Independent Claim 1 describes “an X-ray imaging apparatus for obtaining a radiation image of an object having a length, comprising: a plurality of X-ray tubes arranged in a first ring around the object, each X-ray tube comprising a predefined number of X-ray sources, each X-ray source being equally spaced from an adjacent source, each X-ray source emitting X-rays during a predefined emission period; and a controller configured to cause each of said X-ray sources to emit X-rays in accordance with a firing pattern, wherein said firing pattern causes a substantially even distribution of X-rays from the X-ray sources over a surface of a virtual cylinder, having a length, wherein the virtual cylinder is positioned around the object and the length of the virtual cylinder is equal to or greater than the length of the object.”