Patents by Inventor Ping Zheng
Ping Zheng 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: 10527721Abstract: The disclosure relates to a method and a system for terahertz ISAR imaging. In the method, a chirp signal is transmitted to an imaging target moving at a preset speed and a terahertz ISAR echo signal is received. The terahertz ISAR echo signal is matched filtered in a fast time domain, baseband transformed in a slow time domain, corrected to eliminate a time domain zero offset, baseband transformed, discretized, interpolated, and two-dimensional inverse Fourier transformed to obtain a two-dimensional image of the imaging target.Type: GrantFiled: June 12, 2019Date of Patent: January 7, 2020Assignee: TSINGHUA UNIVERSITYInventors: Xiao-Ping Zheng, Zhan Ou, Xiao-Jiao Deng
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Publication number: 20200003926Abstract: A metal detector for buried and abandoned chemical weapons is provided, comprising: a transmitting circuit to transmit a detection signal; a frequency selection unit electrically connected to the transmitting circuit and configured to regulate a frequency of the detection signal; a receiving circuit to receive a reflected signal returned from the substance detected; an analog-digital conversion unit electrically connected to the receiving circuit and configured to convert the reflected signal into a digital signal; and a control unit electrically connected to the analog-digital conversion unit. In the present disclosure, the frequency of the detection signal can be regulated by changing a current frequency of the transmitting circuit, so that several forms of iron compound can be detected, thereby increasing the detection accuracy of the ACWs.Type: ApplicationFiled: February 2, 2018Publication date: January 2, 2020Applicant: Tsinghua UniversityInventors: XIAO-PING ZHENG, YE-QING YANG, HUA GENG
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Publication number: 20190385599Abstract: A speech recognition method is provided. The method includes: obtaining a voice signal; processing the voice signal according to a speech recognition algorithm to obtain n candidate recognition results, the candidate recognition results including text information corresponding to the voice signal; identifying a target result from among the n candidate recognition results according to a selection rule selected from among m selection rules, the selection rule having an execution sequence of j, the target result being a candidate recognition result that has a highest matching degree with the voice signal in the n candidate recognition results, an initial value of j being 1; and identifying the target result from among the n candidate recognition results according to a selection rule having an execution sequence of j+1 based on the target result not being identified according to the selection rule having the execution sequence of j.Type: ApplicationFiled: August 21, 2019Publication date: December 19, 2019Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Ping ZHENG, Feng RAO, Li LU, Tao LI
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Publication number: 20190377038Abstract: A cesium optical pump detector for buried and abandoned chemical weapons of Japan is provided, comprising a pumping light generation module, a first optical module, a magnetic resonance module, a photoelectric detection module, and a signal processing module. The signal processing module includes an amplifying and filtering unit, a self-oscillation unit, a measuring unit, and a calculating unit connected in sequence. The amplifying and filtering unit comprises a first band-pass filter configured to coarsely measure a frequency of the electrical signal and a second band-pass filter configured to finely measure the frequency of the electrical signal. The self-oscillation unit comprises a first phase shifter connected to the first band-pass filter and a second phase shifter connected to the second band-pass filter. In the present disclosure, the intensity of a magnetic field detected can be finely measured, so that the ACWs can be found efficiently and accurately.Type: ApplicationFiled: December 27, 2018Publication date: December 12, 2019Applicant: Tsinghua UniversityInventors: XIAO-PING ZHENG, HUA GENG
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Publication number: 20190377100Abstract: A metal detector for buried and corroded pipeline is provided, comprising: a transmitting coil configured to transmit a detection signal to a pipeline; a frequency selection unit electrically connected to the transmitting coil for regulating a frequency of the detection signal; two receiving coils respectively and symmetrically disposed at two opposite sides of the transmitting coil for respectively receiving a reflected signal returned from the pipeline; an analog-digital conversion unit respectively and electrically connected to the two receiving coils for converting the reflected signal into a digital signal; and a control unit electrically connected to the analog-digital conversion unit. In the present disclosure, by comparing intensities of the reflected signals received by the two receiving coils, it can be efficiently and accurately determined whether corrosion has occurred to the pipeline.Type: ApplicationFiled: December 27, 2018Publication date: December 12, 2019Applicant: Tsinghua UniversityInventors: XIAO-PING ZHENG, YE-QING YANG, HUA GENG
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Patent number: 10499743Abstract: The invention is to a type of disassemblable folding chair that includes supports legs on two sides and an upholstered seat back. The support legs include front-tilting support bars and rear-tilting support bars that are cross-hinged with movable hinge joints. Within this structure, the front-tilting support bars on the two sides and the rear-tilting support bars on the two sides are joined together by two cross-hinged diagonal bars. One end of the diagonal bars is directly hinged onto the two front-tilting and rear-tilting support bars; the other end is hinged on the front-tilting and rear-tilting support bars via a detachable structure. When disassembled, the two support legs can be folded together.Type: GrantFiled: October 11, 2017Date of Patent: December 10, 2019Assignee: Zenithen USA, LLCInventors: Andrew David Frankel, Shi-Ping Zheng, Tian-Xia Zheng
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Publication number: 20190365104Abstract: A portable director's chair, which includes: a folding frame, a seat area, and a backrest area. The folding frame includes support sections on both sides in corresponding or symmetrical positions, and diagonal bar sets that connect the two support sections on both sides. The diagonal bar set drives the support sections on both sides to perform the closing and folding actions. It features a clean design with a flexible backrest area.Type: ApplicationFiled: May 30, 2018Publication date: December 5, 2019Inventors: Andrew David Frankel, Shi-Ping Zheng, Tian-Xia Zheng
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Patent number: 10448740Abstract: A spring-loaded leg is shown along with a compatible rocking chair having the spring-loaded leg. The spring-loaded leg is composed of a lower cap, housing, spring and connection member. The connection member passes through the housing slide groove and is situated over the upper end of the housing spring. When connected to the chair frame, the spring-loaded leg provides a spring-like capacity for the frame and in combination with the fulcrum point of the support section, provides a controlled swinging or rocking motion for the chair.Type: GrantFiled: April 11, 2018Date of Patent: October 22, 2019Assignee: Zenithen USA, LLCInventors: Andrew David Frankel, Shi-Ping Zheng, Tian-Xia Zheng
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Publication number: 20190317017Abstract: The present disclosure relates to a terahertz-based high-risk chemical detecting device, which includes a terahertz wave generating unit, a terahertz wave transmitting and receiving unit and an echo analysis unit. The terahertz wave generating unit is configured for generating a terahertz detection signal, a terahertz reference signal and a terahertz local oscillation signal. The terahertz wave transceiver unit is configured to transmit the terahertz detection signal and the terahertz reference signal to a high-risk chemical to be tested, and receive information about carrying a high-risk chemical to be tested. The terahertz echo signal is configured to analyze the terahertz echo signal and the terahertz local oscillation signal to obtain information about a high-risk chemical to be tested. The present disclosure also relates to a terahertz-based high-risk chemical detecting method.Type: ApplicationFiled: June 19, 2019Publication date: October 17, 2019Applicant: Tsinghua UniversityInventors: XIAO-PING ZHENG, XIAO-JIAO DENG, HUA GENG
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Publication number: 20190318882Abstract: A hybrid lithium-ion battery-capacitor (H-LIBC) energy storage device includes a hybrid composite cathode electrode having a lithium ion battery (LIB) cathode active material and a lithium ion capacitor (LIC) cathode active material. An anode electrode having a surface is pre-loaded and pressed with a lithium (Li) thin film source. The anode electrode is pre-lithiated with the lithium film source by positioning the Li film source on the surface of anode electrode after electrolyte filling and soaking processes, A separator and an organic solvent electrolytic solution including a lithium salt electrolyte are also provided. A method of making a hybrid lithium-ion battery-capacitor and a method of making a hybrid composite cathode for a hybrid lithium-ion battery-capacitor are also disclosed.Type: ApplicationFiled: April 16, 2019Publication date: October 17, 2019Inventors: Wanjun Ben Cao, Jin Yan, Xujie Chen, Jian-Ping Zheng, Annadanesh Shellikeri, Mark Andrew Hagen
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Publication number: 20190313797Abstract: A type of spring-loaded leg base includes a base, a spring, and a connecting component. The base has a hollow chamber. The spring is placed inside the chamber. The connecting component is a unified component of a leg sleeve, a connecting bar and a spring cap. By passing the connecting bar through the grooved track and placing the spring cap on the top of the spring, the leg sleeve can be locked in position on the chair frame to create flexible support. This mechanism creates the rocking function for a regular chair.Type: ApplicationFiled: April 11, 2018Publication date: October 17, 2019Inventors: Andrew David Frankel, Shi-Ping Zheng, Tian-Xia Zheng
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Publication number: 20190313799Abstract: A foldable director chair having a folding frame, seat area, and backrest area. The folding frame includes support sections on both sides in corresponding or symmetrical positions, and a diagonal bar set that connects the two support sections on both sides. The diagonal bar set drives the support sections on both sides to perform the closing and folding actions. Of which the support section includes: seat support bars, front support bar, rear support bar, armrest bar, and backrest bar. The seat support bars on the two sides spread the seat fabric to form the seat area. The backrest bars on both sides spread the seatback fabric to form the backrest area.Type: ApplicationFiled: April 11, 2018Publication date: October 17, 2019Inventors: Andrew David Frankel, Shi-Ping Zheng, Tian-Xia Zheng
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Publication number: 20190302012Abstract: The present application discloses a terahertz based self-feedback system for detecting atmospheric high-risk chemical. In the system, a detecting device is configured to detect information of an atmospheric high-risk chemical. A mechanical adjusting device is configured to adjust a height and an orientation of the detecting device to obtain the information at different heights and orientations. A mobile carrying device is configured to drive the detecting device to move to obtain the information of the atmospheric high-risk chemical at different locations. A processing device is configured to process the information and feedback an instruction to adjust the height and the orientation of the detecting device and control the mobile carrying device to move. The processing device is also configured for imaging the information of the atmospheric high-risk chemical. The present application also discloses terahertz based methods for detecting a distribution and a leakage source of the atmospheric high-risk chemical.Type: ApplicationFiled: June 20, 2019Publication date: October 3, 2019Applicant: Tsinghua UniversityInventors: XIAO-PING ZHENG, HAO-HUA LI
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Publication number: 20190293785Abstract: The disclosure relates to a method and a system for terahertz ISAR imaging. In the method, a chirp signal is transmitted to an imaging target moving at a preset speed and a terahertz ISAR echo signal is received. The terahertz ISAR echo signal is matched filtered in a fast time domain, baseband transformed in a slow time domain, corrected to eliminate a time domain zero offset, baseband transformed, discretized, interpolated, and two-dimensional inverse Fourier transformed to obtain a two-dimensional image of the imaging target.Type: ApplicationFiled: June 12, 2019Publication date: September 26, 2019Applicant: Tsinghua UniversityInventors: XIAO-PING ZHENG, ZHAN OU, XIAO-JIAO DENG
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Patent number: 10388852Abstract: Devices and methods for forming a device are disclosed. A substrate having circuit component formed on a substrate surface is provided. Back end of line processing is performed to form an upper inter level dielectric (ILD) layer over the substrate. The upper ILD layer includes a plurality of ILD levels. A pair of magnetic tunneling junction (MTJ) stacks is formed in between adjacent ILD levels of the upper ILD layer. Each of the MTJ stack includes a fixed layer, a tunneling barrier layer and a free layer. The fixed layer has a first width. The tunneling barrier layer is formed on the fixed layer. The free layer is formed on the tunneling barrier layer. The free layer has a second width. The first width is wider than the second width.Type: GrantFiled: June 8, 2016Date of Patent: August 20, 2019Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.Inventors: Ping Zheng, Eng Huat Toh, Elgin Kiok Boone Quek
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Patent number: 10381356Abstract: Devices and methods for forming a device are presented. The method includes providing a substrate prepared with at least a first region for accommodating an anti-fuse based memory cell. A fin structure is formed in the first region. The fin structure includes top and bottom fin portions and includes channel and non-channel regions defined along the length of the fin structure. An isolation layer is formed on the substrate. The isolation layer has a top isolation surface disposed below a top fin surface, leaving the top fin portion exposed. At least a portion of the exposed top fin portion in the channel region is processed to form a sharpened tip profile at top of the fin. A gate having a gate dielectric and a metal gate electrode is formed over the substrate. The gate wraps around the channel region of the fin structure.Type: GrantFiled: August 11, 2017Date of Patent: August 13, 2019Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.Inventors: Ping Zheng, Eng Huat Toh, Kiok Boone Elgin Quek, Yuan Sun
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Publication number: 20190229366Abstract: A lithium-sulfur battery comprises a cathode electrode comprising from 80% to 100% lithium polysulfide based on the total weight of sulfur adsorbed at the cathode when the lithium sulfur battery is fully charged, and a high specific surface area electrically conductive material. An anode electrode comprises lithium. A porous and electrically insulating membrane is provided between the cathode and the anode electrodes. An electrolyte is adsorbed into and between cathode electrode, the anode electrode, and the membrane. A cathode current collector is electrically connected to the cathode and an anode current collector is electrically connected to the anode. A porous and electrically conductive interlayer can be provided between the membrane and at least one selected from the group consisting of the cathode and the anode. A method of making a battery is also disclosed.Type: ApplicationFiled: November 19, 2018Publication date: July 25, 2019Inventors: Jian-ping Zheng, Chao Shen
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Patent number: 10354808Abstract: An electrochemical energy storage device includes an anode having a first mixture which includes a first plurality of electrically conductive carbon-comprising particles having a first average porosity, and lithium metal materials. The weight ratio of the first plurality of carbon-comprising and lithium metal materials is from 30:1 to 3:1. A cathode includes a second mixture having a second plurality of electrically conductive carbon-comprising particles having a second average porosity greater than the first average porosity, and lithium-intercalating metal oxide particles. The weight ratio of the second plurality of carbon-comprising and lithium-intercalating metal oxide particles is from 1:20 to 5:1. The weight ratio between the lithium metal materials loaded in the anode and the second plurality of carbon-comprising particles in the cathode is from 0.1-10%. An electrolyte physically and ionically contacts the anode and the cathode, and fills the pore volume in the anode, cathode and a porous separator.Type: GrantFiled: January 29, 2016Date of Patent: July 16, 2019Assignee: FLORIDA STATE UNIVERSITY RESEARCH FOUNDATION, INC.Inventors: Jian-ping Zheng, Junsheng Zheng
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Publication number: 20190139710Abstract: An electrochemical energy storage device includes an anode having a first mixture which includes a first plurality of electrically conductive carbon-comprising particles having a first average porosity, and lithium metal materials. The weight ratio of the first plurality of carbon-comprising and lithium metal materials is from 30:1 to 3:1. A cathode includes a second mixture having a second plurality of electrically conductive carbon-comprising particles having a second average porosity greater than the first average porosity, and lithium-intercalating metal oxide particles. The weight ratio of the second plurality of carbon-comprising and lithium-intercalating metal oxide particles is from 1:20 to 5:1. The weight ratio between the lithium metal materials loaded in the anode and the second plurality of carbon-comprising particles in the cathode is from 0.1-10%. An electrolyte physically and ionically contacts the anode and the cathode, and fills the pore volume in the anode, cathode and a porous separator.Type: ApplicationFiled: November 9, 2018Publication date: May 9, 2019Inventors: Jian-ping ZHENG, Junsheng ZHENG
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Publication number: 20190125082Abstract: A chair surface for folding chairs, where the main chair surface includes hemming and a seating area. The main chair surface is mounted to the chair surface support section by the hemming. The circumference of the seating area has a surrounding seam, and the seating area comprises the shapeable seat section and the backseat section. The space between the surrounding seam and the hemming is connected by a stretchy or stretchable element to create the mounting structure. This invention is a seating area that is shapeable to form a seat section and a backrest section. It contours to the hip and does not create any tightening sensation.Type: ApplicationFiled: October 27, 2017Publication date: May 2, 2019Inventors: Andrew David Frankel, Shi-Ping Zheng, Tian-Xia Zheng