Patents by Inventor Jin Qiang He
Jin Qiang He 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).
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Patent number: 11883211Abstract: The disclosure relates to techniques for triggering magnetic resonance data acquisition. The techniques include detecting a respiration direction of a respiration signal of an acquisition subject, predicting in real time an amplitude peak value of an expiration signal in the current respiration period according to the real-time respiration signal of the acquisition subject, multiplying the amplitude peak value by a preset coefficient, and using the product as a trigger point threshold of the current respiration period. When it is determined that an expiration stage of the current respiration period is starting, the techniques also include calculating in real time or periodically the absolute value of the difference between the amplitude of the current expiration signal and the trigger point threshold currently calculated, and if the absolute value of the difference is less than a preset difference threshold, then triggering MR data acquisition.Type: GrantFiled: June 3, 2021Date of Patent: January 30, 2024Assignee: Siemens Healthcare GmbHInventors: Jin Qiang He, Fang Dong, De He Weng
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Publication number: 20210378603Abstract: The disclosure relates to techniques for triggering magnetic resonance data acquisition. The techniques include detecting a respiration direction of a respiration signal of an acquisition subject, predicting in real time an amplitude peak value of an expiration signal in the current respiration period according to the real-time respiration signal of the acquisition subject, multiplying the amplitude peak value by a preset coefficient, and using the product as a trigger point threshold of the current respiration period. When it is determined that an expiration stage of the current respiration period is starting, the techniques also include calculating in real time or periodically the absolute value of the difference between the amplitude of the current expiration signal and the trigger point threshold currently calculated, and if the absolute value of the difference is less than a preset difference threshold, then triggering MR data acquisition.Type: ApplicationFiled: June 3, 2021Publication date: December 9, 2021Applicant: Siemens Healthcare GmbHInventors: Jin Qiang He, Fang Dong, De He Weng
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METHOD AND APPARATUS FOR DETERMINING RESPIRATION PHASE, MAGNETIC RESONANCE IMAGING METHOD AND SYSTEM
Publication number: 20210052187Abstract: The present disclosure provides techniques for determining a respiration phase by extracting a distance characteristic value, a score characteristic value, and an area characteristic value from the respiration signal, wherein the distance characteristic value, the score characteristic value and the area characteristic value are used to indicate waveform variation between two adjacent waveforms in the respiration signal. The techniques include training a respiration signal model according to the distance characteristic value, the score characteristic value, and the area characteristic value to determine the respiration phase of the respiration signal using the respiration signal model.Type: ApplicationFiled: August 20, 2020Publication date: February 25, 2021Applicant: Siemens Healthcare GmbHInventors: Jin Qiang He, De He Weng, Shu Qun Xie, Fang Dong -
Patent number: 10914801Abstract: In a method, device and digital receiver for transmitting signals in magnetic resonance imaging, M channels of digital signals are received over M receiving channels from a digital matrix processor. One receiving channel corresponds to one channel of digital signal and the M channels of digital signals include one channel of main signal and (M?1) channels of high-order signals. The M channels of digital signals are combined into N channels of combined signals, wherein the main signal and at least one channel of high-order signal are combined into one channel of combined signal, or at least two channels of high-order signals are combined into one channel of combined signal. N and M are both positive integers, N is less than M, and M is greater than or equal to 2.Type: GrantFiled: March 29, 2019Date of Patent: February 9, 2021Assignee: Siemens Healthcare GmbHInventors: Jin Qiang He, Guang Bao Dai
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Patent number: 10823810Abstract: A digital mode matrix phase calibration includes acquiring an actual phase deviation ??mn forming an actual phase deviation matrix ?? of a factory system; calculating an ideal phase deviation forming an ideal phase deviation matrix; calculating a phase deviation of the actual phase deviation and the ideal phase deviation; acquiring a maximum value of the phase deviation; when the maximum value ??max is less than a preset threshold ?, calculating a field system phase deviation ??mn, and a field system phase deviation matrix ?? formed by the field system phase deviation ??mn subjecting a field system to phase calibration. By acquiring only one row and one column in the phase deviation matrix, the technical solution in embodiments of the present invention can fit phase deviations of other rows and columns, and the method subjects the system to phase calibration quickly.Type: GrantFiled: September 28, 2018Date of Patent: November 3, 2020Assignee: Siemens Healthcare GmbHInventors: Jin Qiang He, Bin Kuang, Jing Zhao
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Patent number: 10436872Abstract: A magnetic resonance signal correction method, apparatus and system are provided. The method includes receiving a magnetic resonance signal through a radio frequency receiving channel, and correcting the magnetic resonance signal with a signal mapping relationship of the radio frequency receiving channel.Type: GrantFiled: December 31, 2014Date of Patent: October 8, 2019Assignee: Siemens AktiengesellschaftInventor: Jin Qiang He
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Publication number: 20190302202Abstract: In a method, device and digital receiver for transmitting signals in magnetic resonance imaging, M channels of digital signals are received over M receiving channels from a digital matrix processor. One receiving channel corresponds to one channel of digital signal and the M channels of digital signals include one channel of main signal and (M?1) channels of high-order signals. The M channels of digital signals are combined into N channels of combined signals, wherein the main signal and at least one channel of high-order signal are combined into one channel of combined signal, or at least two channels of high-order signals are combined into one channel of combined signal. N and M are both positive integers, N is less than M, and M is greater than or equal to 2.Type: ApplicationFiled: March 29, 2019Publication date: October 3, 2019Applicant: Siemens Healthcare GmbHInventors: Jin Qiang He, Guang Bao Dai
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Publication number: 20190101610Abstract: A digital mode matrix phase calibration includes acquiring an actual phase deviation ??mn forming an actual phase deviation matrix ?? of a factory system; calculating an ideal phase deviation forming an ideal phase deviation matrix; calculating a phase deviation of the actual phase deviation and the ideal phase deviation; acquiring a maximum value of the phase deviation; when the maximum value ??max is less than a preset threshold ?, calculating a field system phase deviation ??mn, and a field system phase deviation matrix ?? formed by the field system phase deviation ??mn subjecting a field system to phase calibration. By acquiring only one row and one column in the phase deviation matrix, the technical solution in embodiments of the present invention can fit phase deviations of other rows and columns, and the method subjects the system to phase calibration quickly.Type: ApplicationFiled: September 28, 2018Publication date: April 4, 2019Applicant: Siemens Healthcare GmbHInventors: Jin Qiang He, Bin Kuang, Jing Zhao
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Publication number: 20150185307Abstract: A magnetic resonance signal correction method, apparatus and system are provided. The method includes receiving a magnetic resonance signal through a radio frequency receiving channel, and correcting the magnetic resonance signal with a signal mapping relationship of the radio frequency receiving channel.Type: ApplicationFiled: December 31, 2014Publication date: July 2, 2015Inventor: Jin Qiang He
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Publication number: 20150091561Abstract: A mode matrix processor of a magnetic resonance imaging system includes an input unit, an output unit, an operation unit, and a control unit, wherein the input unit is used for receiving a number of digital magnetic resonance signals; the operation unit is used for performing a linear combination operation on the plurality of digital magnetic resonance echo signals, to obtain at least one digital mode signal; the output unit is used for sending the at least one digital mode signal; and the control unit controls, according to the number of the digital magnetic resonance signals, the operation unit to perform the linear combination operation. The mode matrix processor of a magnetic resonance imaging system according to a specific embodiment of the present invention has desirable portability between different systems. The mode matrix processor of a magnetic resonance imaging system according to a specific embodiment of the present invention can improve the compatibility of coils between different systems.Type: ApplicationFiled: September 30, 2014Publication date: April 2, 2015Applicant: Siemens AktiengesellschaftInventors: Guang Bao Dai, Jin Qiang He, Yan Tu Huang, Wen Ming Li, Hou Quan Lin, Tong Tong, JianMin Wang
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Publication number: 20100232649Abstract: The present utility model provides a locating device for a magnetic resonance system comprising an image sensor, an image display for displaying images acquired by the abovementioned image sensor, and a locator, which locator has at least one locating mark. There is no need for the abovementioned locating device for a magnetic resonance system to use a laser for locating and, therefore, the case where an operator is hurt by the laser will not occur. On the other hand, due to the use of the image sensor and the image display, the remote control of adjustment conditions can be accomplished, therefore there is no need to repeatedly enter into a magnetic resonance examination room to carry out operations during the adjustment process, which saves time and costs for the adjustments.Type: ApplicationFiled: March 10, 2010Publication date: September 16, 2010Inventors: Zhi Cheng Deng, Chao Ming He, Jin Qiang He, Oliver Schreck