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公开(公告)号：US12148592B2
公开(公告)日：2024-11-19
申请号：US18497508
申请日：2023-10-30
Applicant: General Electric Company
Inventor： John Scott Price , Ye Bai , Antonio Caiafa , Vasile Bogdan Neculaes , Uwe Wiedmann
IPC: H01J29/68 , B29C64/153 , B29C64/273 , H01J37/30 , H01J37/305 , B33Y30/00
Abstract: A system for melting, sintering, or heat treating a material is provided. The system includes a cathode, an anode, and a focus coil assembly having a quadrupole magnet. The quadrupole magnet includes four poles and a yoke. The four poles are spaced apart and surround a beam cavity. Each of the four poles includes a pole face proximate the beam cavity and an end opposite the pole face. The first and third poles are aligned along an x-axis and configured to have a first magnetic polarity at their respective pole faces and a second magnetic polarity opposite the first magnetic polarity at their respective ends. The second and fourth poles are aligned along a y-axis and configured to have the second magnetic polarity at their respective pole faces and the first magnetic polarity at their respective ends. The yoke surrounds the poles and is coupled to the poles.
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公开(公告)号：US11837428B2
公开(公告)日：2023-12-05
申请号：US16944836
申请日：2020-07-31
Applicant: General Electric Company
Inventor： John Scott Price , Ye Bai , Antonio Caiafa , Vasile Bogdan Neculaes , Uwe Wiedmann
IPC: H01J29/68 , H01J37/30 , B29C64/153 , B29C64/273 , H01J37/305 , B33Y30/00
CPC classification number: H01J29/68 , B29C64/153 , B29C64/273 , H01J37/3002 , H01J37/305 , B33Y30/00 , H01J2237/1415
Abstract: A system for melting, sintering, or heat treating a material is provided. The system includes a cathode, an anode, and a focus coil assembly having a quadrupole magnet. The quadrupole magnet includes four poles and a yoke. The four poles are spaced apart and surround a beam cavity. Each of the four poles includes a pole face proximate the beam cavity and an end opposite the pole face. The first and third poles are aligned along an x-axis and configured to have a first magnetic polarity at their respective pole faces and a second magnetic polarity opposite the first magnetic polarity at their respective ends. The second and fourth poles are aligned along a y-axis and configured to have the second magnetic polarity at their respective pole faces and the first magnetic polarity at their respective ends. The yoke surrounds the poles and is coupled to the poles.
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公开(公告)号：US20230181399A1
公开(公告)日：2023-06-15
申请号：US17967665
申请日：2021-04-19
Applicant: General Electric Company
Inventor： Bruno Kristiaan Bernard De Man , Paul Francis FitzGerald , Stephen Lorenco Araujo , Uwe Wiedmann , Michael James Rishel , Ross Christopher Stalter
CPC classification number: A61G10/02 , A61G10/005 , A61G2210/50
Abstract: Systems are provided for a patient isolation unit for use with a medical imaging system includes an enclosure comprised of a pathogen impermeable material compatible with one or more imaging systems. The enclosure includes a base, a first end wall coupled to a first end of the base, a second end wall coupled to a second end of the base, and a cover coupled to a first side of the base, second side of the base, the first end wall and the second end wall for substantially enclosing a patient therein. In another exemplary embodiment, a patient isolation unit for use with a medical imaging system includes a head enclosure comprised of a pathogen impermeable material and a body enclosure coupled to the head enclosure and comprised of a pathogen impermeable material.
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4.发明申请公开(公告)号：US20190229672A1
公开(公告)日：2019-07-25
申请号：US15875761
申请日：2018-01-19
Applicant: General Electric Company
Inventor： Uwe Wiedmann , Xu Han , Nidhishri Tapadia , Jayakrishnan Unnikrishnan , Prabhakar Neti
Abstract: A system may include a motor that has a rotor and a stator. The system may include one or more sensors that measure a voltage signal of a winding of the stator. The system may include a processor that executes computer-executable instructions which, when executed, cause the processor to receive, from the one or more sensors, the voltage signal that includes an induced voltage signal associated with the winding of the stator, to determine a time constant associated with the induced voltage signal based on a decay pattern of the induced voltage signal, to determine a temperature of a rotor based on the time constant, and to adjust one or more operations of the motor based on the temperature.
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公开(公告)号：US10290460B2
公开(公告)日：2019-05-14
申请号：US15258631
申请日：2016-09-07
Applicant: General Electric Company
Inventor： Michael John Utschig , Uwe Wiedmann , Bruno Kristiaan Bernard De Man , Sergio Lemaitre , Mark Alan Frontera , Antonio Caiafa , Jiahua Fan , Adam Budde
Abstract: An X-ray tube is provided. The X-ray tube includes an electron beam source including a cathode configured to emit an electron beam. The X-ray tube also includes an anode assembly including an anode configured to receive the electron beam and to emit X-rays when impacted by the electron beam. The X-ray tube further includes a gridding electrode disposed about a path of the electron beam between the electron beam source and the anode assembly. The gridding electrode, when powered at a specific level, is configured to grid the electron beam in synchronization with planned transitions during a dynamic focal spot mode.
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Patent Agency Ranking
公开(公告)号：US20170290136A1
公开(公告)日：2017-10-05
申请号：US15090852
申请日：2016-04-05
Applicant: General Electric Company
Inventor： Uwe Wiedmann , Philippe Ernest , Denis Perrillat-Amede , Dominique Poincloux , Jean-Francois Larroux
Abstract: An x-ray system for simultaneously or concurrently measuring currents of multiple emitters is provided. The x-ray system includes a high voltage direct current (DC) supply configured to supply tube current to the multiple emitters and plural emitter circuits. Each of these circuits includes each comprising an alternating current (AC) voltage supply, at least one of the multiple emitters operatively coupled to the AC voltage supply and the high voltage DC supply, and a circuit coupling the AC voltage supply and the high voltage DC voltage supply to the at least one of the multiple filaments. At least one of the emitter circuits has a current measurement device between the high voltage DC supply and the emitter.
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公开(公告)号：US20150063546A1
公开(公告)日：2015-03-05
申请号：US14202520
申请日：2014-03-10
Applicant: General Electric Company
Inventor： Antonio Caiafa , Uwe Wiedmann , Philippe Ernest , Georges William Baptiste , Dominique Poincloux , Yan Jiang
Abstract: Apparatus and methods to control an electron beam of an x-ray tube are provided. One apparatus includes at least one of (i) a first switching unit having a voltage source and a pair of switches connected in series and configured to switch between open and closed positions to change an output voltage to engage or bypass the voltage source or (ii) a second switching unit connected to a voltage source and having a first pair of switches connected in series and a second pair of switches connected in series, wherein the first and second pair of switches are connected in parallel, and wherein the first and second pairs of switches are configured to switch between open and closed position to change an output voltage generated from the voltage source. The first and second switching units are connected in series and a third switching unit provided that is amplitude controllable.
Abstract translation: 提供了用于控制X射线管的电子束的装置和方法。 一个装置包括以下至少一个：（i）第一开关单元，其具有电压源和串联连接的一对开关，并且被配置为在打开和关闭位置之间切换以改变输出电压以接合或旁路电压源，或者（ii ）连接到电压源并具有串联连接的第一对开关和串联连接的第二对开关的第二开关单元，其中所述第一和第二对开关并联连接，并且其中所述第一和第二对 的开关被配置为在打开和关闭位置之间切换以改变从电压源产生的输出电压。 第一开关单元和第二开关单元串联连接，第三开关单元设置为可调幅度。
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公开(公告)号：US20210350997A1
公开(公告)日：2021-11-11
申请号：US17382808
申请日：2021-07-22
Applicant: General Electric Company
Inventor： Yong Liang , Vance Scott Robinson , Uwe Wiedmann
Abstract: An X-ray source includes a target configured to generate X-rays when impacted by an electron beam. The target includes one or more thermally conductive layers; and one or more X-ray generating layers interleaved with the thermally conductive layers, wherein at least one X-ray generating layer comprises regions of X-ray generating material separated by thermally conductive material within the respective X-ray generating layer.
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公开(公告)号：US20210244373A1
公开(公告)日：2021-08-12
申请号：US16789100
申请日：2020-02-12
Applicant: General Electric Company
Inventor： Uwe Wiedmann , Biju Jacob , Peter Michael Edic , Brian David Yanoff
IPC: A61B6/00 , G01N23/041
Abstract: The present disclosure relates to fabrication and use of a phase-contrast imaging detector that includes sub-pixel resolution electrodes or photodiodes spaced to correspond to a phase-contrast interference pattern. A system using such a detector may employ fewer gratings than are typically used in a phase-contrast imaging system, with certain functionality typically provided by a detector-side analyzer grating being performed by sub-pixel resolution structures (e.g., electrodes or photodiodes) of the detector. Measurements acquired using the detector may be used to determine offset, amplitude, and phase of a phase-contrast interference pattern without multiple acquisitions at different phase steps.
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公开(公告)号：US20180328863A1
公开(公告)日：2018-11-15
申请号：US15591926
申请日：2017-05-10
Applicant: General Electric Company
Inventor： Xue Rui , Yannan Jin , Biju Jacob , Brian David Yanoff , Uwe Wiedmann
CPC classification number: G01N23/046 , A61B6/032 , A61B6/4291 , G01T1/242 , G21K1/025
Abstract: The present approach relates to scatter correction of signals acquired using radiation detectors on a pixel-by-pixel basis. In certain implementations, the systems and methods disclosed herein facilitate scatter correction for signals generated using a detector having segmented detector elements, such as may be present in an energy-resolving, photon-counting CT imaging system.
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