Patents by Inventor Christopher A. G. LeMay

Christopher A. G. LeMay 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).

  • Publication number: 20210306812
    Abstract: Systems and methods for proactively identifying and surfacing relevant content on an electronic device with a touch-sensitive display are disclosed herein. In one aspect, a method includes presenting content in a first application. At least a portion of the content is presented without requiring input from a user. The method further includes receiving a request to open a second application. In response to receiving the request, the second application is presented with an input-receiving field. Before receiving any user input at the input-receiving field, a selectable user interface object is displayed with an indication that the portion of the content was viewed in the first application, allowing the user to paste at least the portion of the content into the input-receiving field. In response to detecting a selection of the selectable user interface object, the portion of the content is pasted into the input-receiving field.
    Type: Application
    Filed: June 11, 2021
    Publication date: September 30, 2021
    Inventors: Daniel C. GROSS, Patrick L. COFFMAN, Richard R. DELLINGER, Christopher P. FOSS, Jason J. GAUCI, Aria D. HAGHIGHI, Cyrus D. IRANI, Bronwyn A. JONES, Gaurav KAPOOR, Stephen O. LEMAY, Colin C. MORRIS, Michael R. SIRACUSA, Lawrence Y. YANG, Brent D. RAMERTH, Jerome R. BELLEGARDA, Jannes G.A. DOLFING, Giulia P. PAGALLO, Xin WANG, Jun HATORI, Alexandre R. MOHA, Kevin D. CLARK, Karl Christian KOHLSCHUETTER, Jesper A. ANDERSEN, Hafid ARRAS, Alexandre CARLHIAN, Thomas DENIAU, Mathieu J. MARTEL, Sofiane TOUDJI
  • Patent number: 5218624
    Abstract: In a radiographic apparatus, a source of radiation is arranged to scan a planar spread of radiation in a plane about the body of a patient being examined. A plurality of detector devices is arranged to provide data representing the absorption of the radiation along a plurality of paths within the spread, for different orientations in the plane, for processing to determine a distribution of absorption coefficients for a planar slice of the body. The arrangement is such that a predetermined number of the detector devices are irradiated by the spread of radiation at any time and the actual devices irradiated change progressively as the scan progresses.
    Type: Grant
    Filed: November 22, 1991
    Date of Patent: June 8, 1993
    Assignee: EMI Limited
    Inventor: Christopher A. G. LeMay
  • Patent number: 4843618
    Abstract: In a computerized tomographic apparatus in which the requisite absorption data are derived by rotating a source of fanned radiation around a body to be examined and detecting radiation emergent from a cross-sectional slice of the body at many times during the rotation the data, when assembled into sets relating to parallel beam paths through the slice, tends to relate to beam paths which are non-uniformly spaced across the slice. Some techniques for processing such data to produce a representation of the variation of absorption of said radiation over the slice should preferably have said data presented thereto in the form of sets relating to substantially uniformly spaced, parallel beam paths. The application of this invention provides considerably more data then is actually required for the processing so that data relating to beam paths of the required numbers and dispositions can be derived therefrom.
    Type: Grant
    Filed: April 19, 1983
    Date of Patent: June 27, 1989
    Assignee: EMI Limited
    Inventors: John E. Best, Christopher A. G. LeMay, Godfrey N. Hounsfield, Robert J. Froggatt
  • Patent number: 4769828
    Abstract: In a radiographic apparatus, a source of radiation is arranged to scan a planar spread of radiation in a plane about the body of a patient being examined. A plurality of detector devices is arranged to provide data representing the absorption of the radiation along a plurality of paths within the spread, for different orientations in the plane, for processing to determine a distribution of absorption coefficients for a planar slice of the body. The arrangement is such that a predetermined number of the detector devices are irradiated by the spread of radiation at any time and the actual devices irradiated change progressively as the scan progresses.
    Type: Grant
    Filed: October 17, 1983
    Date of Patent: September 6, 1988
    Assignee: EMI Limited
    Inventor: Christopher A. G. LeMay
  • Patent number: 4642540
    Abstract: During demonstration of a job sequence by an operator, an image error signal generated by a camera raster, is fed into a register, where it corrects the actual raster position, which is then stored in a data store. A tachometer signal from a joint of a model of a robot arm being manipulated by the operator is subtracted from a corresponding tachometer signal on the robot arm and passed to a processor.The processor uses an iterative procedure to evaluate a set of constants from the tachometer signals from the model. The servo signals are subsequently used to enable the robot arm to repeat the job sequence.
    Type: Grant
    Filed: November 2, 1983
    Date of Patent: February 10, 1987
    Assignee: EMI Limited
    Inventor: Christopher A. G. LeMay
  • Patent number: 4398251
    Abstract: A CT scanner is disclosed in which sets of X-radiation measurements, each set being for a fan-shaped distribution of beam paths, are used by a convolving circuit as though they were for sets of parallel beam paths. The inaccuracies due to this are countered by using correction factors, one for each pixel of the final picture of the patient slice, which correction factors are derived by the use of a phantom of known X-ray response. In addition, a special interpolation technique is disclosed to facilitate accurate back projection.
    Type: Grant
    Filed: August 8, 1977
    Date of Patent: August 9, 1983
    Assignee: EMI Limited
    Inventor: Christopher A. G. LeMay
  • Patent number: 4379329
    Abstract: In a method of constructing a representation of the distribution of absorption in a planar region of a body interpolation is provided, between data signals representing absorption of radiation along parallel paths, to provide signals for an increased number of such paths as required for the processing used. The interpolation is performed by forming differences of second or higher order, subdividing the differences and then combining them by running additions.
    Type: Grant
    Filed: July 25, 1977
    Date of Patent: April 5, 1983
    Assignee: EMI Limited
    Inventor: Christopher A. G. LeMay
  • Patent number: 4289968
    Abstract: In an apparatus for examining a body by means of penetrating radiation a source is arranged to direct radiation through the body and a plurality of detectors are arranged to receive it thereafter. The source and detector are arranged to scan the body to obtain data for use in obtaining a distribution of absorption of the radiation for part of the body. For correction for differences in the relative sensitivities of the detectors they are arranged in pairs to examine radiation along substantially identical paths and for correction for drift each detector is caused to examine a substantially identical path at different times.
    Type: Grant
    Filed: July 11, 1977
    Date of Patent: September 15, 1981
    Assignee: EMI Limited
    Inventor: Christopher A. G. LeMay
  • Patent number: 4233662
    Abstract: A medical diagnostic X-ray machine (CT scanner) is disclosed using a technique of filtered or compensated back-projection or layergram to form a picture of a patient slice. In examining a body by means of X-rays or other penetrating radiation, signals are derived representing the logarithm of the absorption of individual beams in sets of parallel beams which are passed through the body in a single plane at many different angles. Corresponding to each such signal there is derived a summation signal produced by a process of convolution using a convolution function of a special form which is such that the convolution can be effected in a recirculatory circuit. An image of the plane section is reconstructed by selectively superimposing the summation signals producing the effect of what may be termed a compensated layergram.
    Type: Grant
    Filed: February 13, 1978
    Date of Patent: November 11, 1980
    Assignee: EMI Limited
    Inventor: Christopher A. G. LeMay
  • Patent number: 4206653
    Abstract: In an ultrasonic investigating apparatus a transducer can receive reflections from points in the body for which the position in one direction is relatively well known as a result of accurate range gating but for which the position in another direction is relatively less known in view of the relatively wide ultrasound beams used. Thus the reflections are only known as originating from lines in the body. These line integrals of reflection of ultrasonic energy are processed by methods appropriate to line integrals in general, as known for line integrals of X-ray absorption for example, to more accurately position the reflecting points in the body. A propagation velocity distribution can also be determined for the body to further improve the accuracy.
    Type: Grant
    Filed: October 6, 1978
    Date of Patent: June 10, 1980
    Assignee: E M I Limited
    Inventor: Christopher A. G. LeMay
  • Patent number: 4206360
    Abstract: Radiographic apparatus utilizing a plurality of radiation-sensitive detectors to quantify the radiation emerging from a body along respective paths is provided with means for compensating for differences between the sensitivities of the various detectors. The compensating means includes an arrangement for displacing the source of the radiation relative to the detectors and for utilizing output signals obtained from one detector when the source is in its undisplaced and displaced positions respectively to predict what the output of a second detector, closely adjacent the first, should be if the sensitivities of the two detectors were equal. By comparing the prediction with the actual output signal provided by the second detector, differences in sensitivity are evaluated and allowed for. A technique for convolving difference signals rather than net signals is also disclosed.
    Type: Grant
    Filed: May 18, 1977
    Date of Patent: June 3, 1980
    Assignee: E M I Limited
    Inventor: Christopher A. G. LeMay
  • Patent number: 4137775
    Abstract: In an ultrasonic investigating apparatus a transducer can receive reflections from points in the body for which the position in one direction is relatively well known as a result of accurate range gating but for which the position in another direction is relatively less known in view of the relatively wide ultrasound beams used. Thus the reflections are only known as originating from lines in the body. These line integrals of reflection of ultrasonic energy are processed by methods appropriate to line integrals in general, as known for line integrals of X-ray absorption for example, to more accurately position the reflecting points in the body. A propagation velocity distribution can also be determined for the body to further improve the accuracy.
    Type: Grant
    Filed: September 27, 1976
    Date of Patent: February 6, 1979
    Assignee: Emi Limited
    Inventor: Christopher A. G. LeMay
  • Patent number: 4088887
    Abstract: In an X-ray apparatus for examining a body a source of a fan of radiation and detectors of the radiation along beams in the fan are traversed in a plane to provide data for a plurality of sets of parallel beams in the plane. An orbital motion is provided to give data for further sets at different inclinations in the plane. The data can be processed by arrangements using such "parallel" sets. The orbital motion is continuous during the traverse but the extent of angular change in one lateral scan is kept small so that lack of parallelism in the "parallel" sets does not give excessive errors.
    Type: Grant
    Filed: August 23, 1976
    Date of Patent: May 9, 1978
    Assignee: EMI Limited
    Inventor: Christopher A. G. LeMay