Patents by Inventor Ming Ruan
Ming Ruan 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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Publication number: 20150185335Abstract: The invention presents a backscattering scintillation detector. The scintillation detector includes a scintillation crystal detector; a X-ray sensitizing screen, which is disposed forward the scintillation crystal detector and where a backscattered X-ray from an object to be detected is processed and then at least part of the processed X-ray is incident to scintillation crystal detector; and photoelectric multiplier, which is disposed backward the scintillation crystal detector and is configured to collect a light signal from scintillation crystal detector and convert it to an electrical signal. Through the above preferable embodiment, a X-ray sensitizing screen, a scintillation crystal detector, and light guiding and wave-drifting technologies are combined together to obtain a novel scintillation detector, which can improve detection of X-ray, transmission of light signal and conversion of light signal to electrical signal.Type: ApplicationFiled: December 19, 2014Publication date: July 2, 2015Inventors: Ziran ZHAO, Zhiqiang CHEN, Yuanjing LI, Wanlong WU, Yinong LIU, Ming RUAN, Yingkang JIN, Le TANG
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Patent number: 8993977Abstract: The present invention discloses a detector. The detector includes a detector crystal, configured to detect incident rays therein; a plurality of moderator layers, configured to moderate neutrons entering the moderator layer; and a plurality of converter layers, configured to react with said moderated neutrons. The moderator layers and the converter layers are overlapped with each other, and the moderator layers and the converter layers are located outside the detector crystal.Type: GrantFiled: December 20, 2012Date of Patent: March 31, 2015Assignee: Nuctech Company LimitedInventors: Kun Zhao, Ming Ruan
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Publication number: 20150030205Abstract: The present invention provides a human body security inspection method and system. The method comprises: retrieving in real-time scanning row or column image data of a personal to be inspected; transmitting in real-time the image data to an algorithm processing module and processing these image data by the module; automatically recognizing a suspicious matter by a suspicious matter automatic target recognition technique, after retrieving an image data of an entire scanning image of the personal; any of the following three inspection modes is selected, so as to perform a further processing on basis of the recognition result of the suspicious matter, (1) in a manner of automatic target recognition technique, (2) in a combination manner of the automatic target recognition technique and a privacy protection image; and (3) a combination manner of the automatic target recognition technique, a privacy protection image and human intervention.Type: ApplicationFiled: July 21, 2014Publication date: January 29, 2015Inventors: Zhiqiang CHEN, Yuanjing LI, Ziran ZHAO, Wanlong WU, Yingkang JIN, Yinong LIU, Wenguo LIU, Xianli DING, Bin SANG, Le TANG, Ming RUAN, Chenguang ZHU, Liaohua FU, Fuhua DING, Shuo CAO
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Publication number: 20150025841Abstract: A method for patrol inspecting and locating a radioactive substance, comprising: providing a background radioactive intensity value of environment; collecting radioactive intensity values from a inspecting region by a detector at a plurality of sampling points on a patrol inspection route; calculating a radioactive intensity distribution in the inspecting region on basis of the collected radioactive intensity values and the background radioactive intensity value; and determining a position of the radioactive substance on basis of the radioactive intensity distribution. Furthermore, a device for patrol inspecting and locating a radioactive substance comprises: two or more detectors configured to collect radioactive intensity values from a inspecting region around a patrol inspection route, at each of a plurality of sampling points on the patrol inspection route; and a movable carrier configured to carry the detector and to move along the patrol inspection is route to pass by the sampling points.Type: ApplicationFiled: December 20, 2012Publication date: January 22, 2015Inventors: Qiang Wang, Kun Zhao, Ming Ruan
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Publication number: 20140361187Abstract: The present invention discloses a detector. The detector includes a detector crystal, configured to detect incident rays therein; a plurality of moderator layers, configured to moderate neutrons entering the moderator layer; and a plurality of converter layers, configured to react with said moderated neutrons. The moderator layers and the converter layers are overlapped with each other, and the moderator layers and the converter layers are located outside the detector crystal.Type: ApplicationFiled: December 20, 2012Publication date: December 11, 2014Inventors: Kun Zhao, Ming Ruan
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Patent number: 8909937Abstract: An access control system and an access control method thereof are provided. The access control system comprises a handheld device, an access control server and a terminal recording device. The handheld device has a user identification. The access control server is configured to store a user identification set, connect to the handheld device within a first time interval, determine that the user identification is included in the user identification set, generate a one-time password (OTP) seed set, and transmit the OTP seed set to the handheld device. The terminal recording device connects to the handhold device within a second time interval, and performs a two-way identification certification with the handheld device according to the OTP seed set so that the handheld device performs a data access to the terminal recording device after achieving the two-way identification certification.Type: GrantFiled: December 13, 2011Date of Patent: December 9, 2014Assignee: Institute for Information IndustryInventors: He-Ming Ruan, Chin-Laung Lei, Yung-Chih Liu
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Publication number: 20140185769Abstract: A human body back-scattering inspection system is disclosed. The system comprises a flying-spot forming unit configured to output beams of X-rays, a plurality of discrete detectors which are arranged vertically along a human body to be inspected, and a controlling unit coupled to the flying-spot forming unit and the plurality of detectors, and configured to generate a control signal to control the flying-spot forming unit and the plurality of detectors to perform a partition synchronous scan on the human body to be inspected vertically. The present disclosure utilizes the geometry property of the human body back-scattering inspection system, and proposes a multiple-point synchronous scan mechanism which largely accelerates the inspection of human body.Type: ApplicationFiled: December 20, 2013Publication date: July 3, 2014Inventors: Ziran ZHAO, Zhiqiang CHEN, Yuanjing LI, Wanlong WU, Ming RUAN, Yinong LIU, Yingkang JIN, Le TANG, Yanjie WEN, Xiuwei CHEN, Fuhua DING, Bin SANG, Zongjun SHEN
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Publication number: 20140185773Abstract: A human body security inspection system including a plurality of ray emitting-detecting modules, which are configured to emit X-rays to the object to be inspected and to receive X-rays scattered from the object to be inspected, wherein the ray emitting-detecting modules form an enclosed region with respect to the object to be inspected and security inspection is implemented on the object in the enclosed region.Type: ApplicationFiled: December 20, 2013Publication date: July 3, 2014Applicants: TSINGHUA UNIVERSITY, NUCTECH COMPANY LIMITEDInventors: Zhiqiang Chen, Yuanjing LI, Ziran ZHAO, Wanlong WU, Le TANG, Yinong LIU, Yingkang JIN, Wenguo LIU, Shuo CAO, Zhimin ZHENG, Guangwei DING, Ming RUAN, Xiuwei CHEN
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Publication number: 20140185770Abstract: Human body back-scattering inspection systems and methods are disclosed. In the invention, X-rays modulated by the flying-spot forming unit having spirally distributed flying-spots have a distribution having alternating peaks and valleys on the irradiated surface. In this way, scanning starting times can be precisely controlled to cause two devices to have scanning starting times that are different by a half of a cycle. That is, the beams outputted from one device are at maximum when the beams outputted from the other device are at minimum. In other words, even if the ray source of one device emits rays, it will not significantly affect imaging result of the other device. In such way, the two devices may emit rays and perform scanning at the same time, and thus the total scanning time is reduced.Type: ApplicationFiled: December 23, 2013Publication date: July 3, 2014Inventors: Zhiqiang CHEN, Ziran ZHAO, Yuanjing LI, Wanlong WU, Yingkang JIN, Li ZHANG, Le TANG, Chenguang ZHU, Xianli DING, Xiuwei CHEN, Ming RUAN, Chengcong XU, Xilei LUO
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Publication number: 20140130170Abstract: An information security audit method used in an information security audit system is provided. The information security audit method comprises the steps outlined below. A normalized weighting of each of a plurality of members of an organization is computed according to a level and at least one feature of each of the members. A plurality of risk evaluation values corresponding to a plurality of audit items are computed and a normalized risk evaluation value of each of the members is further computed according to the risk evaluation values and the normalized weighting. A relation of the normalized risk evaluation value and a plurality of threshold value intervals are determined to dynamically adjust an audit period and/or a number of the audit items according to the relation.Type: ApplicationFiled: November 27, 2012Publication date: May 8, 2014Applicant: INSTITUTE FOR INFORMATION INDUSTRYInventors: Chien-Ting KUO, He-Ming RUAN, Chin-Laung LEI
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Publication number: 20140006459Abstract: Example embodiments disclosed herein relate to a rule-based data population system including a rule dispatcher engine to automatically bind data generating rules to a database. The system may further include a data generator engine to generate testing data for the database based on the rules.Type: ApplicationFiled: June 29, 2012Publication date: January 2, 2014Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Bin Guo, Qi-Bo Ma, Yi-Ming Ruan
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Publication number: 20130132731Abstract: An access control system and an access control method thereof are provided. The access control system comprises a handheld device, an access control server and a terminal recording device. The handheld device has a user identification. The access control server is configured to store a user identification set, connect to the handheld device within a first time interval, determine that the user identification is included in the user identification set, generate a one-time password (OTP) seed set, and transmit the OTP seed set to the handheld device. The terminal recording device connects to the handhold device within a second time interval, and performs a two-way identification certification with the handheld device according to the OTP seed set so that the handheld device performs a data access to the terminal recording device after achieving the two-way identification certification.Type: ApplicationFiled: December 13, 2011Publication date: May 23, 2013Inventors: He-Ming Ruan, Chin-Laung Lei, Yung-Chih Liu
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Publication number: 20120326024Abstract: A detection apparatus and method for an ion migration spectrum include acquiring an ion migration spectrum of pure carrier gas and an ion migration spectrum of carrier gas containing a test substance sample and performing differential process on the ion migration spectrum of the pure carrier gas and the ion migration spectrum of the carrier gas containing the test substance sample to acquire a differential spectrum. The value of a characteristic peak of the differential spectrum represents properties of the sample of substances. The method avoids interferences on the migration spectrum from interference sources of the apparatus itself, thereby improving detection sensitivity and accuracy of the ion migration spectrum, and migration spectrum shift caused by variations in the environmental conditions can be found and corrected through the differential process on the migration spectrum of the pure carrier gas, thereby achieving self-stableness and self-correction of the ion migration spectrometer.Type: ApplicationFiled: July 27, 2012Publication date: December 27, 2012Applicant: NUCTECH COMPANY LIMITEDInventors: Ming Ruan, Peng Jiao, Yingrong Jian, Yangtian Zhang, Jin Lin, Huan Peng
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Patent number: 8247776Abstract: Disclosed is a device for detecting orientation of a radioactive material to determine presence and position of the radioactive material, comprising: at least one first radiation detector; at least one second radiation detector, each of said at least one second radiation detector and each of said at least one first radiation detector being arranged side by side and in pairs, detection surfaces of said first and second radiation detector being in the same plane to receive radiation from the same direction in the same manner and to generate a first detection signal and a second detection signal, respectively; a shielding plate, said shielding plate being arranged between said first radiation detector and said second radiation detector arranged in a pair and extending forward beyond said detection surfaces; and a determination device for receiving the first and second detection signals from said first and second radiation detector, and determining whether a radioactive material exists or not according to said fiType: GrantFiled: December 22, 2008Date of Patent: August 21, 2012Assignee: Nuctech Company LimitedInventors: Hua Peng, Kun Zhao, Yu He, Ming Ruan
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Patent number: 8084748Abstract: In a device for detecting and identifying a radioactive material, a coincidence device is configured to receive the first pulse signals and the second pulse signals from a first second detectors; a multi-channel analyzer is configured to receive the second pulse signals, count said second pulses and generate the energy spectrum of the gamma rays according to the counted second pulses, when the first pulse signals and the second pulse signals are both valid; a linear gate is configured to receive coincidence signals and being turned on, when the output signals of the coincidence device are valid, to allow the multi-channel analyzer to count the second pulses; and a determination device is configured to determine the type of the radioactive material emitting the gamma rays according to the generated energy spectrum and determine whether a radiation exists or not.Type: GrantFiled: April 9, 2009Date of Patent: December 27, 2011Assignee: Nuctech Company LimitedInventors: Hua Peng, Kun Zhao, Yu He, Ming Ruan
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Patent number: 7989770Abstract: A radiation inspection system is disclosed. The radiation inspection system comprises: an inspection passage through which a moving object under inspection can pass, a radiation source disposed on a side of the inspection passage for emitting radiation, an array of detectors disposed on the other side of the inspection passage opposite to the radiation source for receiving the radiation emitted from the radiation source, a detector for detecting the moving object, and a controller for receiving a signal from the detector and controlling the radiation source to emit radiation when the detector detects the moving object for radiation imaging and inspection of the moving object. According to the radiation inspection system, the controller can control the radiation source to automatically emit radiation beam based on the detection signal from the detector for inspecting the moving object. As a result, inspection efficiency is improved, safety is increased, and misoperation of the radiation source is eliminated.Type: GrantFiled: December 22, 2006Date of Patent: August 2, 2011Assignees: Nuctech Company Limited, Tsinghua UniversityInventors: Zhiqiang Chen, Yuanjing Li, Yinong Liu, Junli Li, Hua Peng, Yaohong Liu, Shangmin Sun, Jinyu Zhang, Qingjun Zhang, Li Zhang, Yali Xie, Yanli Deng, Ming Ruan, Siyuan Liang, Guang Yang, Wei Jia
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Patent number: 7947957Abstract: The invention provides a data processing device for processing an reference background spectrum and a measurement spectrum of a radioactive material represented by a multichannel spectrum to acquire energy region information of detected gamma rays comprises: energy region dividing means for degenerating multichannel spectrum into a degenerated spectrum of limited channels; degenerated spectrum calculating means for calculating a background and measurement degenerated spectrum corresponding to degenerated spectrum of limited channels respectively; energy ratio calculating means for calculating a energy ratio based on the calculated background and measurement degenerated spectrum; peak-detection means, for searching a peak value in the calculated energy ratios; energy region determining information for determining a corresponding energy region of gamma rays based on the searched peak value in the energy ratios.Type: GrantFiled: December 22, 2008Date of Patent: May 24, 2011Assignee: Nuctech Company LimitedInventors: Ming Ruan, Yingrong Jian, Kun Zhao, Jin Lin
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Patent number: 7911592Abstract: Disclosed is a method for identifying a moving object, comprising: a driving-in step of moving a moving object into a passage, a velocity measuring step of measuring a moving velocity of the moving object, a light beam emitting step of emitting light beams from one side of the passage, a light beam receiving step of receiving the light beams not shielded by the moving object at other side of the passage, a profile determining step of determining a profile of at least one portion of the moving object based on the received light beams and the measured moving velocity of the moving object, and an identifying step of determining type of the moving object by comprising the profile of the at least one portion of the moving object with information of moving objects stored previously.Type: GrantFiled: December 25, 2006Date of Patent: March 22, 2011Assignees: Nuctech Company Limited, Tsinghua UniversityInventors: Zhiqiang Chen, Yuanjing Li, Yinong Liu, Junli Li, Hua Peng, Yaohong Liu, Shangmin Sun, Jinyu Zhang, Qingjun Zhang, Li Zhang, Yali Xie, Yanli Deng, Ming Ruan, Siyuan Liang, Guang Yang, Wei Jia
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Patent number: 7848486Abstract: The present invention relates to the fields of radioactive material detection and X-ray radiation imaging inspection, and provides a system and method for performing radioactive material detection and X-ray radiation imaging inspection simultaneously at the same place, thereby solving the problem that the two means have to be conducted separately, as in the prior art.Type: GrantFiled: March 16, 2009Date of Patent: December 7, 2010Assignee: Nuctech Company LimitedInventors: Ming Ruan, Zhongqi Pu, Kun Zhao, Jun Lv, Xiaobing Wang, Zhe Xin, Gaofeng Miao, Yu He
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Patent number: 7825371Abstract: The invention provides a multichannel analyzer for use in a multichannel spectrometer, which comprises a standard spectrum calibrator for obtaining energy calibration parameters of said multichannel spectrometer; an environment background spectrum calibrator for obtaining parameters of a current and a previous environment background spectrum; a peak shift detector for analyzing the parameters of the current and previous environment background spectrum to determine whether a peak shift occurs between them and to determine a correction coefficient of the peak shift; and a parameter corrector for correcting the energy calibration parameters of said multichannel spectrometer using said peak shift correction coefficient. The invention also provides a method for correcting a peak shift of a multichannel spectrometer adapted in the multichannel analyzer. The method for correcting and the multichannel analyzer can correct and monitor the peak shift of the multichannel spectrometer in real time.Type: GrantFiled: December 23, 2008Date of Patent: November 2, 2010Assignee: Nuctech Company LimitedInventors: Ming Ruan, Yingrong Jian, Kun Zhao, Yali Xie, Jin Lin