Patents by Inventor Guangzhi Liu
Guangzhi Liu 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: 20210224435Abstract: A method for designing a new Purley CPU heat sink is provided, which includes: obtaining a ventilation volume and obtaining a thermal resistance Rca of a heat sink; selecting a CPU model, obtaining a power consumption value and obtaining a maximum allowable surface temperature value Tcmax of the CPU model; obtaining a product of the thermal resistance Rca of the heat sink and the power consumption value as a CPU surface temperature value Tc; and comparing the CPU surface temperature value Tc with the maximum allowable surface temperature value Tcmax of the CPU model, determining that the heat sink supports the CPU model if the CPU surface temperature value Tc is lower than or equal to the maximum allowable surface temperature value Tcmax of the CPU model; otherwise, determining that the heat sink does not support the CPU model.Type: ApplicationFiled: November 30, 2017Publication date: July 22, 2021Applicant: ZHENGZHOU YUNHAI INFORMATION TECHNOLOGY CO., LTD.Inventor: Guangzhi LIU
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Publication number: 20210145390Abstract: A method, device and system for calculating a microcirculation indicator are provided. A method includes: injecting a vasodilator and subjecting a blood vessel to be measured to coronary angiography; selecting at least one angiographic image of a first body position when the blood vessel to be measured is in a resting state and an angiographic image of a second body position when the blood vessel to be measured is in a dilated state; obtaining a three-dimensional coronary artery vascular model by three-dimensional modeling; injecting a contrast agent, and obtaining time T1 taken for the contrast agent flowing from an inlet to an outlet of the segment of blood vessel and time T2 taken for the contrast agent flowing from an inlet to an outlet of the segment of blood vessel; obtaining the microcirculation indicator.Type: ApplicationFiled: January 26, 2021Publication date: May 20, 2021Applicant: SUZHOU RAINMED MEDICAL TECHNOLOGY CO., LTD.Inventors: Guangzhi LIU, Zhiyuan WANG, Wei DAI, Lin CHEN, Yong HUO, Yanjun GONG, Jianping LI, Tieci YI, Bo ZHENG
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Publication number: 20210113100Abstract: Disclosed is a method for calculating fractional flow reserve, comprising: collecting a pressure at the coronary artery inlet of heart by a blood pressure sensor in real-time, and storing a pressure value in a data linked table; obtaining an angiographic time according to the angiographic image, finding out the corresponding data from data queues based on time index using the angiographic time as an index value, screening out stable pressure waveforms during multiple cycles, and obtaining an average pressure Pa; and obtaining a length of the segment of blood vessel from angiographic images of the two body positions, and obtaining a blood flow velocity V; calculating a pressure drop ?P for the segment of the blood vessel using the blood flow velocity V at the coronary artery inlet, and calculating a pressure Pd at the distal end of the blood vessel, and further calculating the angiographic fractional flow reserve.Type: ApplicationFiled: December 23, 2020Publication date: April 22, 2021Applicant: SUZHOU RAINMED MEDICAL TECHNOLOGY CO., LTD.Inventors: Yunfei HUO, Guangzhi LIU, Xingyun WU
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Publication number: 20190386931Abstract: Aspects of the subject disclosure may include, for example, a broadcast services platform includes a memory that stores operational instructions. A processor executes the operational instructions to: receive user data, the user data including a list of users and performance metric data corresponding to individual ones of the users; sort the list of the users in order of the performance metric data to generate a sorted list of the users; partition the sorted list of the users to generate a plurality of user groups; and generate network resource allocation data that allocates network resources to provide broadcast services to the users. Other embodiments are disclosed.Type: ApplicationFiled: August 30, 2019Publication date: December 19, 2019Applicant: AT&T Intellectual Property I, L.P.Inventors: Rakesh Sinha, Jeffrey Erman, Guangzhi Liu, Jiasi Chen, Kadangode K. Ramakrishnan
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Patent number: 10416733Abstract: A heat dissipation system includes a motherboard, at least two chips, at least two heat sinks and at least two air guide covers. Every two chips of the at least two chips constitute a chipset, the chips in each chipset are installed on the motherboard in sequence along an airflow direction, each of the at least heat sinks is installed on a surface of the chip corresponding to the heat sink, and every two air guide covers of the at least two air guide covers constitute an air guide group. In the air guide group, a first air guide cover is arranged on a first side of a first chip, and a second air guide cover is arranged on a second side of a second chip. A heat dissipation method based on the system is also provided. The solution ensures a relatively uniform heat dissipation between the chips.Type: GrantFiled: December 13, 2016Date of Patent: September 17, 2019Assignee: INSPUR ELECTRONIC INFORMATION INDUSTRY CO., LTDInventor: Guangzhi Liu
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Publication number: 20190018463Abstract: A heat dissipation system includes a motherboard, at least two chips, at least two heat sinks and at least two air guide covers. Every two chips of the at least two chips constitute a chipset, the chips in each chipset are installed on the motherboard in sequence along an airflow direction, each of the at least heat sinks is installed on a surface of the chip corresponding to the heat sink, and every two air guide covers of the at least two air guide covers constitute an air guide group. In the air guide group, a first air guide cover is arranged on a first side of a first chip, and a second air guide cover is arranged on a second side of a second chip. A heat dissipation method based on the system is also provided. The solution ensures a relatively uniform heat dissipation between the chips.Type: ApplicationFiled: December 13, 2016Publication date: January 17, 2019Applicant: INSPUR ELECTRONIC INFORMATION INDUSTRY CO., LTDInventor: Guangzhi LIU
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Patent number: 9548043Abstract: A data interpolation method is utilized for obtaining an interpolation data of an interpolation point in a destination data, and a data number of the destination data has a horizontal magnification factor and a vertical magnification factor compared to a data number of a source data. The data interpolation method includes obtaining an input data from the source data according to an interpolation position of the interpolation point corresponding to the destination data, the horizontal magnification factor, and the vertical magnification factor, wherein the input data includes a plurality of input pixel values corresponding to a plurality of pixels; performing at least one reordering and interpolation calculating process on the plurality of input pixel values to obtain a plurality of output pixel values; and selecting an output pixel value from the plurality of output pixel values and outputting the output pixel value as the interpolation data of the interpolation point.Type: GrantFiled: November 7, 2013Date of Patent: January 17, 2017Assignee: NOVATEK Microelectronics Corp.Inventors: Guangzhi Liu, Bo Zhao
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Patent number: 9323782Abstract: A matching search method is utilized for performing a matching search from a first image block to a second image block in a stereo matching system. The matching search method includes obtaining a global offset of the first image block corresponding to the second image block according to an offset relationship between a first image data of the first image block and a second image data of the second image block; and performing the matching search from the first image block to the second image block according to the global offset and a searching range.Type: GrantFiled: October 15, 2013Date of Patent: April 26, 2016Assignee: NOVATEK Microelectronics Corp.Inventors: Lei Zhou, Guangzhi Liu, Cheng-Wei Chou
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Patent number: 9241148Abstract: A disparity calculating method includes generating an energy matrix according to a first image-block and a second image-block, wherein the energy matrix includes a plurality of energies of a plurality of pixels corresponding to a plurality of disparity candidates; setting the energy corresponding to a starting pixel of the plurality of pixels and a specified disparity candidate of the plurality of disparity candidates as a first predetermined value and setting the energies corresponding to the starting pixel and other disparity candidates of the plurality of disparity candidates as a second predetermined value, wherein the second predetermined value is greater than the first predetermined value; generating a path matrix according to the energy matrix; and determining a plurality of disparities of the plurality of pixels sequentially from an ending pixels of the plurality of pixels, wherein the disparity of the ending pixel is set as a third predetermined value.Type: GrantFiled: December 8, 2013Date of Patent: January 19, 2016Assignee: NOVATEK Microelectronics Corp.Inventors: Guangzhi Liu, Lei Zhou, Cheng-Wei Chou
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Patent number: 9042638Abstract: An image matching method is utilized for performing a stereo matching from a first image block to a second image block in a stereo matching system. The image matching method includes performing a matching computation from the first image block to the second image block according to a first matching algorithm to generate a first matching result; performing the matching computation between the first image block and the second image block according to a second matching algorithm to generate a second matching result and a third matching result; obtaining a matching error and a matching similarity of the first image block according to the second matching result and the third matching result; and determining a stereo matching result of the first image block according to the matching error and the matching similarity.Type: GrantFiled: September 22, 2013Date of Patent: May 26, 2015Assignee: NOVATEK Microelectronics Corp.Inventors: Lei Zhou, Guangzhi Liu, Cheng-Wei Chou
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Publication number: 20150085085Abstract: A disparity calculating method for a stereo matching system includes calculating a global energy matrix according to a first image, a second image and a previous disparity matrix of a previous frame; calculating a global disparity matrix according to the global energy matrix and a first stereo matching algorithm; calculating a local energy matrix between a first image block of the first image and a second image block of the second image according to the first image block, the second image block, a previous block disparity matrix and the global disparity matrix; and calculating a local disparity matrix between the first image block and the second image block according to the local energy matrix and a second stereo matching algorithm.Type: ApplicationFiled: December 6, 2013Publication date: March 26, 2015Applicant: NOVATEK Microelectronics Corp.Inventors: Guangzhi Liu, Lei Zhou, Cheng-Wei Chou
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Publication number: 20150063680Abstract: A disparity calculating method includes generating an energy matrix according to a first image-block and a second image-block, wherein the energy matrix includes a plurality of energies of a plurality of pixels corresponding to a plurality of disparity candidates; setting the energy corresponding to a starting pixel of the plurality of pixels and a specified disparity candidate of the plurality of disparity candidates as a first predetermined value and setting the energies corresponding to the starting pixel and other disparity candidates of the plurality of disparity candidates as a second predetermined value, wherein the second predetermined value is greater than the first predetermined value; generating a path matrix according to the energy matrix; and determining a plurality of disparities of the plurality of pixels sequentially from an ending pixels of the plurality of pixels, wherein the disparity of the ending pixel is set as a third predetermined value.Type: ApplicationFiled: December 8, 2013Publication date: March 5, 2015Applicant: NOVATEK Microelectronics Corp.Inventors: Guangzhi Liu, Lei Zhou, Cheng-Wei Chou
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Publication number: 20150029240Abstract: A data interpolation method is utilized for obtaining an interpolation data of an interpolation point in a destination data, and a data number of the destination data has a horizontal magnification factor and a vertical magnification factor compared to a data number of a source data. The data interpolation method includes obtaining an input data from the source data according to an interpolation position of the interpolation point corresponding to the destination data, the horizontal magnification factor, and the vertical magnification factor, wherein the input data includes a plurality of input pixel values corresponding to a plurality of pixels; performing at least one reordering and interpolation calculating process on the plurality of input pixel values to obtain a plurality of output pixel values; and selecting an output pixel value from the plurality of output pixel values and outputting the output pixel value as the interpolation data of the interpolation point.Type: ApplicationFiled: November 7, 2013Publication date: January 29, 2015Applicant: NOVATEK Microelectronics Corp.Inventors: Guangzhi Liu, Bo Zhao
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Publication number: 20150023585Abstract: A matching search method is utilized for performing a matching search from a first image block to a second image block in a stereo matching system. The matching search method includes obtaining a global offset of the first image block corresponding to the second image block according to an offset relationship between a first image data of the first image block and a second image data of the second image block; and performing the matching search from the first image block to the second image block according to the global offset and a searching range.Type: ApplicationFiled: October 15, 2013Publication date: January 22, 2015Applicant: NOVATEK Microelectronics Corp.Inventors: Lei Zhou, Guangzhi Liu, Cheng-Wei Chou
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Publication number: 20150010230Abstract: An image matching method is utilized for performing a stereo matching from a first image block to a second image block in a stereo matching system. The image matching method includes performing a matching computation from the first image block to the second image block according to a first matching algorithm to generate a first matching result; performing the matching computation between the first image block and the second image block according to a second matching algorithm to generate a second matching result and a third matching result; obtaining a matching error and a matching similarity of the first image block according to the second matching result and the third matching result; and determining a stereo matching result of the first image block according to the matching error and the matching similarity.Type: ApplicationFiled: September 22, 2013Publication date: January 8, 2015Applicant: NOVATEK Microelectronics Corp.Inventors: Lei Zhou, Guangzhi Liu, Cheng-Wei Chou
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Patent number: 8891856Abstract: A method of detecting image format includes dividing a single-frame image into a plurality of macro-blocks; calculating a correlation coefficient of a left-half image of the single-frame image and a right-half image of the single-frame image as a first global similarity; calculating a correlation coefficient of a top-half image of the single-frame image and a bottom-half image of the single-frame image as a second global similarity; calculating a portion difference of each macro-block; comparing the portion differences of the left-half image and the right-half image, for acquiring a first local similarity; comparing the portion differences of the top-half image and the bottom-half image, for acquiring a second local similarity; and detecting an image format of the single-frame image according to the first global similarity, the second global similarity, the first local similarity, the second local similarity, a first threshold and a second threshold.Type: GrantFiled: November 29, 2012Date of Patent: November 18, 2014Assignee: NOVATEK Microelectronics Corp.Inventors: Lei Zhou, Guangzhi Liu, Heng Yu, Chun Wang
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Publication number: 20140132742Abstract: A method is disclosed for display images on a three-dimensional stereo display device includes generating a detection result according to user information, and generating a disparity range signal according to the detection signal, a display information and a comfort model, retrieving a dense disparity map signal of an original display signal. The method also includes generating an adjusted disparity map signal according to the disparity range signal and the dense disparity map signal and outputting an adjusted display signal according to the adjusted disparity map signal and the original display signal, to process a three-dimensional stereo display operation of the three-dimensional stereo display device.Type: ApplicationFiled: February 26, 2013Publication date: May 15, 2014Applicant: NOVATEK MICROELECTRONICS CORP.Inventors: Guangzhi Liu, Jiande Jiang
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Publication number: 20140050402Abstract: A method of detecting image format includes dividing a single-frame image into a plurality of macro-blocks; calculating a correlation coefficient of a left-half image of the single-frame image and a right-half image of the single-frame image as a first global similarity; calculating a correlation coefficient of a top-half image of the single-frame image and a bottom-half image of the single-frame image as a second global similarity; calculating a portion difference of each macro-block; comparing the portion differences of the left-half image and the right-half image, for acquiring a first local similarity; comparing the portion differences of the top-half image and the bottom-half image, for acquiring a second local similarity; and detecting an image format of the single-frame image according to the first global similarity, the second global similarity, the first local similarity, the second local similarity, a first threshold and a second threshold.Type: ApplicationFiled: November 29, 2012Publication date: February 20, 2014Applicant: NOVATEK MICROELECTRONICS CORP.Inventors: Lei Zhou, Guangzhi Liu, Heng Yu, Chun Wang
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Publication number: 20130257826Abstract: The present invention discloses an overdriving method for a liquid crystal display (LCD). The overdriving method includes steps of dividing a display area of the LCD into a plurality of sub-areas; and driving the sub-areas with a plurality of corresponding overdriving tables according to locations of the sub-areas in the display region. The plurality overdriving tables are corresponding to a plurality of overdriving capability.Type: ApplicationFiled: July 17, 2012Publication date: October 3, 2013Inventors: Jiande Jiang, Guangzhi Liu, Chun Wang, Heng Yu
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Patent number: D588062Type: GrantFiled: December 5, 2007Date of Patent: March 10, 2009Assignee: Jiangsu Jianghuai Engine Co., Ltd.Inventors: Chengrong Bao, Hongchun Ding, Weifeng Chen, Wenhai Xia, Guangzhi Liu, Shuguang Xie, Yibo Shan, Tianzhu Wang