Patents by Inventor Yuqiu ZHAO
Yuqiu ZHAO 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: 10367653Abstract: A Position Emission Tomography (PET) system is provided in the present disclosure. According to an example, the PET system includes a detector and a host computer, where the detector includes: a plurality of detector rings; each of the detector rings including n number of collecting modules arranged in a circumferential direction of the detector ring, where n is an integer greater than 1; a first collecting module of the n number of collecting modules coupled with the host computer; an n-th collecting module of the n number of collecting module coupled with a (n?1)-th collecting module; and an i-th collecting module coupled with an (i?1)-th collecting module, where i is an integer greater than 1 and less than n.Type: GrantFiled: July 26, 2017Date of Patent: July 30, 2019Assignee: Shenyang Neusoft Medical Systems Co., Ltd.Inventors: Peng Gao, Long Yang, Peng Ning, Yuqiu Zhao, Liang He
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Patent number: 10330803Abstract: A system and method of a PET imaging are provided. According to an example, a detector, a movement control module, a power control module and a reconstructing computer may be connected to a switch in a form of a star-shaped network topology. The detector may include M*N detector units distributed in an annular structure, each detector unit may be allocated with an IP address, M detector units are evenly distributed on each circumferential direction of the annular structure, and N detector units are evenly distributed on each axial direction of the annular structure. Each of the detector units may transmit a set of acquired data to the reconstructing computer through the switch via a network bus; and the set of data may include location information, acquiring time information and IP address.Type: GrantFiled: September 30, 2016Date of Patent: June 25, 2019Assignee: SHENYANG NEUSOFT MEDICAL SYSTEMS CO., LTD.Inventors: Peng Gao, Long Yang, Guodong Liang, Nan Li, Yuqiu Zhao
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Patent number: 9952332Abstract: A method and a PET apparatus are provided. According to an example of the method, a saturation indicia of a target detector may be determined through simulating emission of a ? photon to the target detector. The target detector is any one of SiPM detectors of a PET apparatus. The saturation indicia is for designating a maximum output voltage after amplifying an output of the target detector through a VGA when one ? photon is received by the target detector. The target VGA is a VGA corresponding to the target detector. By comparing an output voltage of the target VGA and the saturation indicia, it may determine that the target detector received a saturation event if the output voltage of the target VGA is higher than the saturation indicia. An amplifier gain of the target VGA may be adjusted until an amount of the saturation events detected by the target detector in unit time satisfies a pre-determined threshold.Type: GrantFiled: November 9, 2016Date of Patent: April 24, 2018Assignee: SHENYANG NEUSOFT MEDICAL SYSTEMS CO., LTD.Inventors: Yuqiu Zhao, Guodong Liang, Long Yang, Peng Gao, Gai Cui
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Publication number: 20180034659Abstract: A Position Emission Tomography (PET) system is provided in the present disclosure. According to an example, the PET system includes a detector and a host computer, where the detector includes: a plurality of detector rings; each of the detector rings including n number of collecting modules arranged in a circumferential direction of the detector ring, where n is an integer greater than 1; a first collecting module of the n number of collecting modules coupled with the host computer; an n-th collecting module of the n number of collecting module coupled with a (n?1)-th collecting module; and an i-th collecting module coupled with an (i?1)-th collecting module, where i is an integer greater than 1 and less than n.Type: ApplicationFiled: July 26, 2017Publication date: February 1, 2018Inventors: Peng GAO, Long YANG, Peng NING, Yuqiu ZHAO, Liang HE
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Patent number: 9866220Abstract: A timing method and a timing device are disclosed. A Gray code count output may be obtained by performing a Gray code count on a basic clock. Then m number of sub-clocks may be obtained by separately performing a phase shift on a least significant bit output of the Gray code count output, where a phase difference ? between each of the m number of sub-clocks and the least significant bit output may satisfy: ?=n×? and ??90°, 180° may be divisible by ? with no remainder, and n may be an integer greater than 0 and less than 180°/?. If 90° is divisible by ? with no remainder, m=180/??2; and if 90° is divisible by ? with a remainder, m=180/??1. When a predetermined event occurs, a timing result of the predetermined event may be obtained according to the Gray code count output value, outputs of the m number of sub-clocks, a period of the basic clock, and the ?.Type: GrantFiled: December 5, 2016Date of Patent: January 9, 2018Assignee: SHENYANG NEUSOFT MEDICAL SYSTEMS CO., LTD.Inventors: Yuqiu Zhao, Guodong Liang, Long Yang, Peng Gao, Jun Zhang
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Patent number: 9810629Abstract: An apparatus for recognizing a position of a crystal in a nuclear detector, including: a silicon semiconductor detector array arranged in a crystal array in the nuclear detector, where each row/or column of silicon semiconductor detectors is configured to output a sum of voltages outputted by the silicon semiconductor detectors in the row/or column at a row/or column signal output end; row signal comparing modules, one to one correspondingly connected to each row signal output end and configured to obtain a row comparison result for each row of silicon semiconductor detectors; column signal comparing modules, one to one correspondingly connected to each column signal output end and configured to obtain a column comparison result for each column of silicon semiconductor detectors; and a crystal position recognizing module configured to recognize a position of a crystal hit by a photon according to each row comparison result and each column comparison result.Type: GrantFiled: September 27, 2016Date of Patent: November 7, 2017Assignee: Shenyang Neusoft Medical Systems Co., Ltd.Inventors: Nan Li, Guodong Liang, Yuqiu Zhao, Guocheng Wu, Jian Zhao
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Publication number: 20170163262Abstract: A timing method and a timing device are disclosed. A Gray code count output may be obtained by performing a Gray code count on a basic clock. Then m number of sub-clocks may be obtained by separately performing a phase shift on a least significant bit output of the Gray code count output, where a phase difference ? between each of the m number of sub-clocks and the least significant bit output may satisfy: ?=n×? and ??90°, 180° may be divisible by ? with no remainder, and n may be an integer greater than 0 and less than 180°/?. If 90° is divisible by ? with no remainder, m=180/??2; and if 90° is divisible by ? with a remainder, m=180/??1. When a predetermined event occurs, a timing result of the predetermined event may be obtained according to the Gray code count output value, outputs of the m number of sub-clocks, a period of the basic clock, and the ?.Type: ApplicationFiled: December 5, 2016Publication date: June 8, 2017Inventors: Yuqiu Zhao, Guodong Liang, Long Yang, Peng Gao, Jun Zhang
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Publication number: 20170160408Abstract: A method and a PET apparatus are provided. According to an example of the method, a saturation indicia of a target detector may be determined through simulating emission of a ? photon to the target detector. The target detector is any one of SiPM detectors of a PET apparatus. The saturation indicia is for designating a maximum output voltage after amplifying an output of the target detector through a VGA when one ? photon is received by the target detector. The target VGA is a VGA corresponding to the target detector. By comparing an output voltage of the target VGA and the saturation indicia, it may determine that the target detector received a saturation event if the output voltage of the target VGA is higher than the saturation indicia. An amplifier gain of the target VGA may be adjusted until an amount of the saturation events detected by the target detector in unit time satisfies a pre-determined threshold.Type: ApplicationFiled: November 9, 2016Publication date: June 8, 2017Inventors: Yuqiu Zhao, Guodong Liang, Long Yang, Peng Gao, Gai Cui
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Publication number: 20170153337Abstract: A system and method of a PET imaging are provided. According to an example, a detector, a movement control module, a power control module and a reconstructing computer may be connected to a switch in a form of a star-shaped network topology. The detector may include M*N detector units distributed in an annular structure, each detector unit may be allocated with an IP address, M detector units are evenly distributed on each circumferential direction of the annular structure, and N detector units are evenly distributed on each axial direction of the annular structure. Each of the detector units may transmit a set of acquired data to the reconstructing computer through the switch via a network bus; and the set of data may include location information, acquiring time information and IP address.Type: ApplicationFiled: September 30, 2016Publication date: June 1, 2017Inventors: Peng Gao, Long Yang, Guodong Liang, Nan Li, Yuqiu Zhao
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Publication number: 20170089833Abstract: An apparatus for recognizing a position of a crystal in a nuclear detector, including: a silicon semiconductor detector array arranged in a crystal array in the nuclear detector, where each row/or column of silicon semiconductor detectors is configured to output a sum of voltages outputted by the silicon semiconductor detectors in the row/or column at a row/or column signal output end; row signal comparing modules, one to one correspondingly connected to each row signal output end and configured to obtain a row comparison result for each row of silicon semiconductor detectors; column signal comparing modules, one to one correspondingly connected to each column signal output end and configured to obtain a column comparison result for each column of silicon semiconductor detectors; and a crystal position recognizing module configured to recognize a position of a crystal hit by a photon according to each row comparison result and each column comparison result.Type: ApplicationFiled: September 27, 2016Publication date: March 30, 2017Inventors: Nan LI, Guodong LIANG, Yuqiu ZHAO, Guocheng WU, Jian ZHAO