Patents by Inventor Yaming Zhang
Yaming Zhang 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: 20240134086Abstract: The present application discloses a gravimeter zero-drift correction method, apparatus and electronic device, which belongs to the field of gravimeter correction. The gravimeter zero-drift correction method includes: acquiring standard comparison data and actual monitoring data of the gravimeter; determining a plurality of difference values between the actual monitoring data and the standard comparison data; determining the presence or absence of an inflection point among a plurality of difference values; correcting a plurality of difference values in the absence of inflection point among a plurality of difference values; correcting difference values on both sides of a demarcation point respectively by taking an infection point as a demarcation point, in the presence of an inflection point among a plurality of difference values.Type: ApplicationFiled: September 6, 2023Publication date: April 25, 2024Inventors: Wang Zhang, Xiaowei Shi, Ruyuan Bu, Hongchao Wang, Kaixiang Cao, Yaming Liu
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Patent number: 11937677Abstract: A piece of luggage including a main body and a power supplying module is disclosed. The main body includes a moving module including a plurality of wheels and a main motor and a power unit electrically connected to the moving module. The wheels include an active wheel electrically connected to the main motor. The power supplying module includes a power supplying unit including a power supplying box and a battery and a connecting unit including a connecting part, a holding part and a conducting wire. The power supplying box has an output port. The battery is disposed in the power supplying box and electrically connected to the output port. The connecting part has a power port corresponding to the output port. The holding part and the conducting wire are connected to the connecting part. The conducting wire is electrically connected to the power port and the power unit.Type: GrantFiled: September 26, 2019Date of Patent: March 26, 2024Assignee: LINGDONG TECHNOLOGY (BEIJING) CO. LTDInventors: Wei Song, Herrickhui Yaozhang, Song Li, Ou Qi, Yaming Tang, Botao Zheng, Guopeng Zhang
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Publication number: 20240085866Abstract: The present disclosure provides a method and device for intelligent control of heating furnace combustion based on a big data cloud platform, which relates to the technical field of artificial intelligence control. The method includes: construction of big data cloud platform based on production and operation parameters of the heating furnace; identification of key factors in the production process of the heating furnace by using big data mining technology; independent deployment of traditional heating furnace combustion control systems based on the mechanism model; and integration of cloud platform big data expert knowledge base and the heating furnace combustion intelligent control system.Type: ApplicationFiled: September 7, 2023Publication date: March 14, 2024Applicant: University of Science and Technology BeijingInventors: Qing LI, Fengqin LIN, Hui LI, Li WANG, Chengyong XIAO, Xu YANG, Jiarui CUI, Chunqiu WAN, Qun YAN, Yan LIU, Lei MIAO, Jin GUO, Boyu ZHANG, Chen HUANG, Yaming XI, Yuxuan LIN
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Patent number: 11919857Abstract: The present invention discloses a phthalide derivative, the structure of said derivative is represented by Formula (I) or Formula (II). The present invention also discloses the preparation method and use of said derivative. The phthalide compound obtained through structure modifications in the present invention enhances the chemical stability and pharmacological activity of the phthalide compound, facilitating the improvement of the druggability of such compounds.Type: GrantFiled: January 17, 2019Date of Patent: March 5, 2024Assignee: LANZHOU INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Junxi Liu, Yaming Zhang
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Publication number: 20230317440Abstract: Disclosed is a method for discriminating ore prospecting types based on compositional change of epidote, in particular including the following steps: metallogenic zone delineation; sample collection and analysis: collecting bedrock samples containing epidote from the metallogenic zone according to certain sampling units; trace element analysis and testing; data processing and interpretation: processing obtained initial recorded data using LADRlib software; and ore prospecting type discrimination.Type: ApplicationFiled: March 16, 2023Publication date: October 5, 2023Inventors: YOUYE ZHENG, SONG WU, JIANHUI WU, YIBIN LIN, DECAI LIN, XIANWU SHA, XIAOFANG DOU, CAIXIAN CHEN, JIANCHANG LI, YAMING ZHANG, GUANGWU JIANG
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Publication number: 20210276953Abstract: The present invention discloses a phthalide derivative, the structure of said derivative is represented by Formula (I) or Formula (II). The present invention also discloses the preparation method and use of said derivative. The phthalide compound obtained through structure modifications in the present invention enhances the chemical stability and pharmacological activity of the phthalide compound, facilitating the improvement of the druggability of such compounds.Type: ApplicationFiled: January 17, 2019Publication date: September 9, 2021Applicant: LANZHOU INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Junxi LIU, Yaming ZHANG
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Publication number: 20190356201Abstract: A motor includes a stator, and a rotor rotatable to the stator. The stator includes a magnetic core, a plurality of windings, and at least one shielding member mounted to one of opposite ends of the magnetic core. The magnetic core includes a yoke portion and a plurality of teeth extending from the yoke portion. The windings are correspondingly wound on the teeth. Said at least one shielding member is grounded. The rotor and said at least one shielding member cooperatively bound a shielding space for the windings.Type: ApplicationFiled: May 21, 2019Publication date: November 21, 2019Inventors: Yue LI, Kunlun ZHENG, Hongqiang ZHAO, Haijun HUA, Yaming ZHANG, Yingsong YE, Yonggang ZHANG
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Patent number: 9148328Abstract: An apparatus and method reduce distortion in a processed signal. The apparatus includes a first receive path, a second receive path, a summation unit, and a compensation unit. The first receive path is configured to process a received analog signal into a first digital signal. The second receive path is configured to process the received analog signal with a phase shift into a second digital signal. The summation unit is configured to sum the first and second digital signals to form a processed digital signal. The compensation unit is configured to identify a conjugate of the processed digital signal, apply a weighting factor to the conjugate of the processed digital signal to form a weighted signal, and subtract the weighted signal from the processed digital signal to reduce the distortion.Type: GrantFiled: October 26, 2011Date of Patent: September 29, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yaming Zhang, John Alexander Interrante, William Hurley, Lup M. Loh
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Publication number: 20140327594Abstract: An apparatus for matching impedance for use in a wireless communication is provided. The apparatus includes a forward path carrying a transmission signal to an antenna. The apparatus further comprises a quadrature feedback path configured to extract and feed back in-phase and quadrature phase components from each of a forward signal being transmitted toward the antenna and a reverse signal reflected from the antenna. A tunable matching network (TMN) is coupled to the forward path, having a plurality of tunable elements for matching an internal impedance to an impedance of the antenna. A controller is configured to calculate TMN input impedance's amplitude and phase based on the in-phase and quadrature phase components from each of the forward signal and the reverse signal.Type: ApplicationFiled: May 2, 2013Publication date: November 6, 2014Applicant: Samsung Electronics Co., LTDInventors: Yaming Zhang, Lup Meng Loh, William Hurley, John Alex Interrante
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Publication number: 20140328433Abstract: An apparatus for envelope tracking calibration for use in a wireless communication is provided. The apparatus includes a transmission signal path configured to carry a transmission signal to an antenna. An envelope signal path configured to feed an envelope signal with an envelope tracking power amplifier. A controller is configured to transmit a normal envelope signal being generated in a normal operation mode and measure a first Adjacent Channel Leakage Ratio (ACLR) corresponding to the normal envelope signal. The controller is further configured to transmit a comparison envelope signal being generated in a comparison operation mode and measure a second ACLR corresponding to the comparison envelope signal. The controller is configured to calculate a time misalignment between the transmission signal path and the envelope signal path based on a difference between the first and second ACLRs.Type: ApplicationFiled: May 1, 2013Publication date: November 6, 2014Applicant: Samsung Electronics Co., LTD.Inventors: Lup Meng Loh, John Alex Interrante, William Hurley, Yaming Zhang
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Patent number: 8873677Abstract: An apparatus for envelope tracking calibration for use in a wireless communication is provided. The apparatus includes a transmission signal path configured to carry a transmission signal to an antenna. An envelope signal path configured to feed an envelope signal with an envelope tracking power amplifier. A controller is configured to transmit a normal envelope signal being generated in a normal operation mode and measure a first Adjacent Channel Leakage Ratio (ACLR) corresponding to the normal envelope signal. The controller is further configured to transmit a comparison envelope signal being generated in a comparison operation mode and measure a second ACLR corresponding to the comparison envelope signal. The controller is configured to calculate a time misalignment between the transmission signal path and the envelope signal path based on a difference between the first and second ACLRs.Type: GrantFiled: May 1, 2013Date of Patent: October 28, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Lup Meng Loh, John Alex Interrante, William Hurley, Yaming Zhang
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Publication number: 20140042866Abstract: A motor core component (10) comprising a plurality of poles (12) and an annular or ring-shaped yoke (16). The yoke (16) is manufacturing by bending or folding a belt component (26) comprising a plurality of yoke portions (14), allowing for greater material utilization during production. At least a portion of the poles (20) are a separate component from the yoke portions (14), such that field coils may be wound around the pole bodies (18) prior to assembling the poles (12) and yoke (16) together, thereby allowing for more convenient winding and a higher slot fill ratio.Type: ApplicationFiled: August 9, 2013Publication date: February 13, 2014Applicant: Johnson Electric S.A.Inventors: Jian ZHAO, Baoting LIU, Haihui XIANG, Yaming ZHANG, Yong LI, Zenghui WU
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Publication number: 20140035420Abstract: A permanent magnet motor (10) with reduced torque ripple and noise comprises a stator (20) and a rotor (30) divided into a plurality of rotor units (33). The rotors units include a plurality of structural features (38, 39, 40) to attach a plurality of magnetic components (35, 36). The rotor units are circumferentially staggered so that each rotor unit incrementally offsets from an adjacent rotor unit, thereby reducing the changes in magnetic flux as the rotor (30) spins, and thus reducing output ripples. The total offset between two end rotor units may be configured to be between a circumferential width of an outer surface of a structural feature (39) and an average circumferential width of a magnetic component (35).Type: ApplicationFiled: August 1, 2013Publication date: February 6, 2014Applicant: JOHNSON ELECTRIC S.A.Inventors: Yue LI, Maoxiong JIANG, Jian ZHAO, Yaming ZHANG, Hongjiang ZHAO, Haijun HUA
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Publication number: 20120106686Abstract: An apparatus and method reduce distortion in a processed signal. The apparatus includes a first receive path, a second receive path, a summation unit, and a compensation unit. The first receive path is configured to process a received analog signal into a first digital signal. The second receive path is configured to process the received analog signal with a phase shift into a second digital signal. The summation unit is configured to sum the first and second digital signals to form a processed digital signal. The compensation unit is configured to identify a conjugate of the processed digital signal, apply a weighting factor to the conjugate of the processed digital signal to form a weighted signal, and subtract the weighted signal from the processed digital signal to reduce the distortion.Type: ApplicationFiled: October 26, 2011Publication date: May 3, 2012Applicant: Samsung Electronics Co., Ltd.Inventors: Yaming Zhang, John Alexander Interrante, William Hurley, Lup M. Loh
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Patent number: 8081691Abstract: A method, system, and computer-readable medium for detecting an interferer in a wireless communication system are provided. The method includes receiving a signal having P tones, each of the P tones being associated with a frequency, determining a first signal quality of each of the P tones, determining a second signal quality of each of the P tones, and detecting the interferer that occupies the same frequency as one of the P tones based on the respective first signal quality and the respective second signal quality. The first signal quality and second signal quality behave differently when the interferer is present. The detecting the interferer includes determining a discrepancy in the behavior of the first signal quality and the second signal quality.Type: GrantFiled: January 14, 2008Date of Patent: December 20, 2011Assignee: QUALCOMM IncorporatedInventors: Brian Chadwick Joseph, Sridhar Rajagopal, Syed Nadeem Ahmed, Yaming Zhang
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Patent number: 7869529Abstract: A system for detection and avoidance of victim services in ultra-wideband (UWB) systems is provided. A detect and avoid module may calculate power averages of Orthogonal Frequency Division Multiplexing tones. The power of tones may be measured and compared with power averages of corresponding tones. If a measured tone power exceeds an average power of a corresponding tone by a dynamic threshold, the tone may be identified as associated with an interferer. The threshold may be inversely related to the gain level of an automatic gain control module. The UWB subsystem may be configured with known bands of victim services of other radio frequency systems, and a tone identified as associated with an interferer that is within a known victim service band may be identified as a victim service. The UWB subsystem may attenuate or otherwise suppress transmission within the victim service band to avoid interfering with the victim service.Type: GrantFiled: June 13, 2007Date of Patent: January 11, 2011Assignee: QUALCOMM IncorporatedInventors: Sridhar Rajagopal, Brian C. Joseph, Syed N. Ahmed, Yaming Zhang, Sidney B. Schrum, Jr.
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Publication number: 20090180521Abstract: A method, system, and computer-readable medium for detecting an interferer in a wireless communication system are provided. The method includes receiving a signal having P tones, each of the P tones being associated with a frequency, determining a first signal quality of each of the P tones, determining a second signal quality of each of the P tones, and detecting the interferer that occupies the same frequency as one of the P tones based on the respective first signal quality and the respective second signal quality. The first signal quality and second signal quality behave differently when the interferer is present. The detecting the interferer includes determining a discrepancy in the behavior of the first signal quality and the second signal quality.Type: ApplicationFiled: January 14, 2008Publication date: July 16, 2009Applicant: WiQuest Communications, Inc.Inventors: Brian Chadwick Joseph, Sridhar Rajagopal, Syed Nadeem Ahmed, Yaming Zhang
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Publication number: 20070291636Abstract: A system, method, and computer-readable medium for detection and avoidance of victim services in ultra-wideband systems is provided. A detect and avoid module may calculate power averages of OFDM tones. The power of tones may then be measured and compared with power averages of corresponding tones. If a measured tone power exceeds an average power of a corresponding tone by a dynamic threshold, the tone may be identified as associated with an interferer. The threshold may be inversely related to the gain level of an automatic gain control module. The ultra-wideband subsystem may be configured with known bands of victim services of other RF systems, and a tone identified as associated with an interferer that is within a known victim service band may be identified as a victim service. The UWB subsystem may attenuate or otherwise suppress transmission within the victim service band to avoid interfering with the victim service.Type: ApplicationFiled: June 13, 2007Publication date: December 20, 2007Applicant: WIQUEST COMMUNICATIONS, INC.Inventors: Sridhar RAJAGOPAL, Brian C. JOSEPH, Syed N. AHMED, Yaming ZHANG, Sidney B. SCHRUM