Patent application number | Description | Published |
20130343672 | METHOD AND APPARATUS FOR ITERATIVE RECONSTRUCTION - A method is provided for reconstructing an image of an object that includes image elements. The method includes accessing measurement data associated with the image elements, introducing an auxiliary variable to transform an original problem of reconstructing the image to a constrained optimization problem, and solving the constrained optimization problem using a method of multipliers to create a sequence of sub-problems and solve the sequence of sub-problems. Solving the sequence of sub-problems includes reconstructing the image by optimizing a first objective function. The first objective function is optimized by iteratively solving a nested sequence of approximate optimization problems. An inner loop iteratively optimizes a second objective function approximating the first objective function. An outer loop utilizes the solution of the second objective function to optimize the first objective function. | 12-26-2013 |
20130343673 | METHOD AND APPARATUS FOR ITERATIVE RECONSTRUCTION - A method is provided for iteratively reconstructing an image of an object. The method includes accessing measurement data associated with the image, and using a simultaneous algorithm to reconstruct the image. Using the simultaneous algorithm to reconstruct the image includes determining a scaling factor that is voxel-dependent, and applying the voxel-dependent scaling factor to a gradient of an objective function to reconstruct the image. | 12-26-2013 |
20140140599 | ORDERED SUBSETS WITH MOMENTUM FOR X-RAY CT IMAGE RECONSTRUCTION - Methods, systems, and non-transitory computer readable media for image reconstruction are presented. Measured data corresponding to a subject is received. A preliminary image update in a particular iteration is determined based on one or more image variables computed using at least a subset of the measured data in the particular iteration. Additionally, at least one momentum term is determined based on the one or more image variables computed in the particular iteration and/or one or more further image variables computed in one or more iterations preceding the particular iteration. Further, a subsequent image update is determined using the preliminary image update and the momentum term. The preliminary image update and/or the subsequent image update are iteratively computed for a plurality of iterations until one or more termination criteria are satisfied. | 05-22-2014 |
Patent application number | Description | Published |
20080304726 | METHODS AND SYSTEMS FOR IMPROVING SPATIAL AND TEMPORAL RESOLUTION OF COMPUTED IMAGES OF MOVING OBJECTS - A method of improving a resolution of an image using image reconstruction is provided. The method includes acquiring scan data of an object and forward projecting a current image estimate of the scan data to generate calculated projection data. The method also includes applying a data-fit term and a regularization term to the scan data and the calculated projection data and modifying at least one of the data fit term and the regularization term to accommodate spatio-temporal information to form a reconstructed image from the scan data and the calculated projection data. | 12-11-2008 |
20100054394 | METHOD AND SYSTEM FOR IMAGE RECONSTRUCTION - A method and system for image reconstruction of data acquired by a device such as computed tomography is provided. The method and system use a multi-stage statistical iterative reconstruction techniques to provide a three dimensional representation of the scanned object. In one embodiment, the first stage uses a projection-based reconstruction technique, such as Ordered Subset (OS) to converge on a solution for low frequency portion of the image. A subsequent stage uses a voxel-based reconstruction technique, such as Iterative Coordinate Descent (ICD), to converge on a solution for high frequency portions of the image. Systems and methods for reconstructing images from incomplete or partial projection data is also provided. | 03-04-2010 |
20140369580 | ACCELERATED ITERATIVE RECONSTRUCTION - A framework for an iterative reconstruction algorithm is described which combines two or more of an ordered subset method, a preconditioner method, and a nested loop method. In one type of implementation a nested loop (NL) structure is employed where the inner loop sub-problems are solved using ordered subset (OS) methods. The inner loop may be solved using OS and a preconditioner method. In other implementations, the inner loop problems are created by augmented Lagrangian methods and then solved using OS method. | 12-18-2014 |
20140369581 | ITERATIVE RECONSTRUCTION IN IMAGE FORMATION - The use of the channelized preconditioners in iterative reconstruction is disclosed. In certain embodiments, different channels correspond to different frequency sub-bands and the output of the different channels can be combined to update an image estimate used in the iterative reconstruction process. While individual channels may be relatively simple, the combined channels can represent complex spatial variant operations. The use of channelized preconditioners allows empirical adjustment of individual channels. | 12-18-2014 |
Patent application number | Description | Published |
20100303531 | Printing Device for Printing of Radio Frequency Identification (RFID) Labels - Disclosed is a printing device for printing Radio Frequency Identification (RFID) labels. The printing device includes an input media drawer configured to receive a plurality of RFID labels including RFID tags and an RFID label processing mechanism operatively coupled to the input media drawer. The RFID label processing mechanism includes a radio system for providing a signal for processing of the at least one RFID tag received from the input media drawer, and an antenna module coupled to the radio system for processing the at least one RFID tag based on the signal received from the radio system. The antenna module includes a transmission line including serially connected, a first set of horizontal legs and a second set of vertical legs. Further, the printing device includes a printing mechanism operatively coupled to the RFID label processing mechanism for printing the RFID labels. | 12-02-2010 |
20110017502 | Z-Directed Components for Printed Circuit Boards - A design for a Z-directed component for insertion into a printed circuit board while allowing electrical connection to internal conductive planes contained with the PCB. In one embodiment the Z-directed component is mounted within the thickness of the PCB allowing other components to be mounted over it. The body may contain one or more conductors and may include one or more surface channels or wells extending along at least a portion of the length of the body. Z-directed components include high frequency signal pass throughs, capacitors, diodes, transistors, transmission lines, delay lines. Methods for mounting Z-directed components are also provided. | 01-27-2011 |
20110017503 | Z-Directed Capacitor Components for Printed Circuit Boards - A Z-directed capacitor component for insertion into a printed circuit board while allowing electrical connection to internal conductive planes contained within the PCB. In one embodiment the Z-directed capacitor component utilizes semi-cylindrical metallic sheets. In another embodiment, stack annular metallic disks are used. The Z-directed capacitor component mounts within the thickness of the PCB allowing other components to be mounted over it. The body may contain one or more conductors and may include one or more surface channels or wells extending along at least a portion of the length of the body. Methods for mounting Z-directed components are also provided. | 01-27-2011 |
20110017504 | Z-Directed Ferrite Bead Components for Printed Circuit Boards - A Z-directed ferrite bead component for insertion into a printed circuit board while allowing electrical connection to internal conductive planes contained with the PCB. In one embodiment the Z-directed component is housed within the thickness of the PCB allowing other components to be mounted over it. Signal and dual conductor Z-directed ferrite bead component embodiments are provided. The body may include one or more surface channels or wells extending along at least a portion of the length of the body. Methods for mounting Z-directed components are also provided. | 01-27-2011 |
20110017505 | Z-Directed Connector Components for Printed Circuit Boards - A Z-directed connector component for insertion into a printed circuit board and providing electrical connections to internal conductive planes contained with the PCB and/or to external conductive traces on the surface of the PCB.. In one embodiment the Z-directed component is housed within the thickness of the PCB allowing other components to be mounted over it. The body of the Z-directed connector component may contain one or more conductors and may include one or more surface channels or wells extending along at least a portion of the length of the body. Methods for mounting Z-directed components are also provided. | 01-27-2011 |
20110019374 | Z-Directed Delay Line Components for Printed Circuit Boards - A Z-directed signal delay line component for insertion into a printed circuit board while allowing electrical connection to internal conductive planes contained with the PCB. In one embodiment the Z-directed delay line component is housed within the thickness of the PCB allowing other components to be mounted over it. The delay line embodiments include a W-like line and a plurality of spaced apart, semi-circular line segment connected such that current flow direction alternates in direction between adjacent semi-circular line segments, each of which in other embodiments can be varied by use of shorting bars. Several Z-directed delay line components may be mounted into a PCB and serially connected to provide for longer delays. The body may contain one or more conductors and may include one or more surface channels or wells extending along at least a portion of the length of the body. Methods for mounting Z-directed components are also provided. | 01-27-2011 |
20120108115 | Z-DIRECTED PASS-THROUGH COMPONENTS FOR PRINTED CIRCUIT BOARDS - A Z-directed signal pass-through component for insertion into a printed circuit board while allowing electrical connection from external surface conductors to internal conductive planes or between internal conductive planes. The Z-directed pass-through component is mounted within the thickness of the PCB allowing other components to be mounted over it. The body may contain one or more conductors and may include one or more surface channels or wells extending along at least a portion of the length of the body. | 05-03-2012 |
20120224296 | Z-DIRECTED CAPACITOR COMPONENTS FOR PRINTED CIRCUIT BOARDS - A Z-directed capacitor component for insertion into a printed circuit board while allowing electrical connection to internal conductive planes contained within the PCB. In one embodiment the Z-directed capacitor component utilizes semi-cylindrical metallic sheets. In another embodiment, stack annular metallic disks are used. The Z-directed capacitor component mounts within the thickness of the PCB allowing other components to be mounted over it. The body may contain one or more conductors and may include one or more surface channels or wells extending along at least a portion of the length of the body. Methods for mounting Z-directed components are also provided. | 09-06-2012 |
20130161082 | Z-Directed Delay Line Components for Printed Circuit Boards - A Z-directed signal delay line component for insertion into a printed circuit board while allowing electrical connection to internal conductive planes contained with the PCB. In one embodiment the Z-directed delay line component is housed within the thickness of the PCB allowing other components to be mounted over it. The delay line embodiments include a W-like line and a plurality of spaced apart, semi-circular line segment connected such that current flow direction alternates in direction between adjacent semi-circular line segments, each of which in other embodiments can be varied by use of shorting bars. Several Z-directed delay line components may be mounted into a PCB and serially connected to provide for longer delays. The body may contain one or more conductors and may include one or more surface channels or wells extending along at least a portion of the length of the body. Methods for mounting Z-directed components are also provided. | 06-27-2013 |
20130341078 | Z-DIRECTED PRINTED CIRCUIT BOARD COMPONENTS HAVING A REMOVABLE END PORTION AND METHODS THEREFOR - A Z-directed component for mounting in a mounting hole in a printed circuit board according to one example embodiment includes a main body portion and a tapered end portion that facilitates insertion of the Z-directed component into the mounting hole in the printed circuit board. The tapered end portion is removably attached to the main body portion such that the tapered end portion may be removed after the Z-directed component is inserted into the mounting hole in the printed circuit board. A method for installing a Z-directed component having a removable tapered lead-in into the mounting hole according to one example embodiment includes inserting the Z-directed component into the mounting hole in the printed circuit board with the removable tapered lead-in leading the insertion and after the Z-directed component is inserted into the mounting hole, removing the removable lead-in from the rest of the Z-directed component. | 12-26-2013 |
20140202753 | Z-Directed Delay Line Components for Printed Circuit Boards - A Z-directed signal delay line component for insertion into a printed circuit board while allowing electrical connection to internal conductive planes contained with the PCB. In one embodiment the Z-directed delay line component is housed within the thickness of the PCB allowing other components to be mounted over it. The delay line embodiments include a W-like line and a plurality of spaced apart, semi-circular line segment connected such that current flow direction alternates in direction between adjacent semi-circular line segments, each of which in other embodiments can be varied by use of shorting bars. Several Z-directed delay line components may be mounted into a PCB and serially connected to provide for longer delays. The body may contain one or more conductors and may include one or more surface channels or wells extending along at least a portion of the length of the body. | 07-24-2014 |
20140368966 | Z-Directed Capacitor Components for Printed Circuit Boards - A Z-directed capacitor according to one embodiment includes a body having top, bottom and side surfaces, a cross-sectional shape that is insertable into a mounting hole in a printed circuit board, and a plurality of stacked support members. Each support member includes an annular plate mounted on a surface thereof. A first conductive side channel and a second conductive side channel are formed in the side surface and extend along a top-to-bottom dimension of the body. A first set of the annular plates electrically contact the first conductive side channel but not the second conductive side channel and a second set of the annular plates electrically contact the second conductive side channel but not the first conductive side channel. A third conductive side channel is formed in the side surface, extends along the top-to-bottom dimension of the body and is electrically separated from the annular plates. | 12-18-2014 |
Patent application number | Description | Published |
20080300685 | Posterior Total Joint Replacement - A prosthetic system for implantation between upper and lower vertebrae comprises an upper joint component. The upper joint component comprises an upper contact surface and an upper articulation surface. The system further includes a lower joint component. The lower joint component comprises a lower contact surface and a lower articulation surface configured to movably engage the upper articulation surface to form an articulating joint. The articulating joint is adapted for implantation within a disc space between the upper and lower vertebrae, allowing the upper and lower vertebrae to move relative to one another. The system further includes a bridge component extending posteriorly from one of either the upper or lower joint components and from the disc space. The bridge component has a distal end opposite the one of the either upper or lower joint components. The distal end of the bridge component comprises a connection component adapted to receive a fastener. | 12-04-2008 |
20100125277 | TRANSVERSE CENTERING TOOL WITH PIN PLACEMENT GUIDES - A centering tool for transverse centering between an upper vertebra and a lower vertebra is disclosed. The centering tool comprises a support portion having a proximal end and a distal end, two handles, and two pin placement guides, each guide having a hollow cylinder shape for the placement of a drill or pin on each of the upper and lower vertebrae. The two handles each have a proximal end and a distal end, wherein the proximal end of each handle is connected to the proximal end of the support portion, and the distal end of each handle ultimately contact the uncular joint of one of the vertebrae when centering is achieved. Preferably, each handle has a spring that biases the handle in a closed position so that the distal portions of both handles abut each other in a resting or closed position. | 05-20-2010 |
20140243898 | INTERSPINOUS PROCESS FUSION DEVICE AND METHOD OF USE - The present invention discloses an interspinous process fusion device, a method of fabricating the interspinous process fusion device, and a surgical method for maintaining a space between two spinous processes in a spine of a patient using the fusion device. The interspinous process fusion device including a distal tip member, a middle plate, a proximal plate, an elongate member, and a plurality of movable wings. The elongate member having a first end, a second end, and a longitudinal axis extending between the first and second end. The distal tip member is connected to the first end of the elongate member, the proximal plate is connected to the second end of the elongate member, and the middle plate and plurality of wings are positioned intermediate the distal tip member and the proximal plate along the longitudinal axis to form the interspinous process fusion device assembly. | 08-28-2014 |
20140277513 | DISC REPLACEMENT DEVICE AND METHOD OF USE - A disc replacement device including a first body member with a convex articulation surface and a second body member with a concave articulation surface is disclosed. When operably positioned, the convex articulation surface engages the concave articulation surface to provide for movement therebetween. The disc replacement device also includes a first opening in the first body member and a second opening in the second body member, wherein the openings are angled and extends from the front aspects of the body members through the external surfaces. The disc replacement device further includes at least two bone fasteners for insertion into the first and second openings to secure the disc replacement device to a first and second vertebra. An interbody motion device and fusion implant, as well as a surgical method for implantation are also disclosed. | 09-18-2014 |