Patents by Inventor Yingjie Zhang
Yingjie 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: 20190312622Abstract: The present disclosure may be related to a pre-5G or 5G communication system to be provided for supporting higher data rates Beyond 4G communication system such as LTE. The present invention provides a method for transmitting channel state information (CSI) report which comprises steps of: determining CSI transmission configuration information that comprises transmission times k of periodic CSI report in one subframe; and transmitting CSI report according to the CSI transmission configuration information. As compared to the prior art, the present invention may improve transmission efficiency of uplink control information (UCI) in a higher frequency spectrum resource environment of 5G technology and ensure transmission efficiency and transmission performance of UCI by introducing a smaller time unit for data scheduling and configuring a smaller CSI report period. Furthermore, the present invention provides a user equipment (UE) for transmitting channel state information.Type: ApplicationFiled: January 10, 2018Publication date: October 10, 2019Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jingxing FU, Bin YU, Chen QIAN, Di SU, Qi XIONG, Yingjie ZHANG
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Publication number: 20190131869Abstract: Various examples related to sinusoidal pulse width modulation (SPWM) techniques for harmonic and electromagnetic interference (EMI) noise suppression are provided. In one example, a method includes applying a DC offset to a sinusoidal modulation waveform to change an average duty cycle of a switching circuit; and controlling switching of an array of switches of the switching circuit based at least in part upon the offset sinusoidal modulation waveform and a carrier waveform, thereby reducing total energy. In another example, a system includes a switching circuit with an array of semiconductor switches that control application of a voltage source to a load; and controller circuitry that can control switching of the array of semiconductor switches by applying a DC offset to a sinusoidal modulation waveform to change an average duty cycle of the switching circuit.Type: ApplicationFiled: October 30, 2018Publication date: May 2, 2019Inventors: SHUO WANG, HUI ZHAO, LE YANG, YINGJIE ZHANG
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Patent number: 10202038Abstract: In a slip control device for an electric vehicle, a slip control section is provided which is configured to perform, in a control repetition cycle, a series of slip control of determining whether or not a slip state has occurred, on the basis of the number of rotations of a drive wheel and the number of rotations of a driven wheel observed by respective rotation number observation sections and, and decreasing a torque command value to a motor if the slip state has occurred. A vehicle speed detection section configured to detect a vehicle speed and a control repetition cycle change section configured to lengthen the control repetition cycle of the slip control section when the vehicle speed detected by the vehicle speed detection section is in a predetermined low-speed range, are provided.Type: GrantFiled: March 14, 2016Date of Patent: February 12, 2019Assignee: NTN CORPORATIONInventor: Yingjie Zhang
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Patent number: 10177271Abstract: This disclosure provides systems, methods, and apparatus related to photodetectors. In one aspect, a photodetector device comprises a substrate, a polycrystalline layer disposed on the substrate, and a first electrode and a second electrode disposed on the polycrystalline layer. The polycrystalline layer comprises nanograins with grain boundaries between the nanograins. The nanograins comprise a semiconductor material. A doping element comprising a halogen is segregated at the grain boundaries. A length of the polycrystalline layer is between and separating the first electrode and the second electrode.Type: GrantFiled: November 23, 2016Date of Patent: January 8, 2019Assignee: the Regents of the University of CaliforniaInventors: A. Paul Alivisatos, Miquel Salmeron, Yingjie Zhang, Daniel J. Hellebusch
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Patent number: 9861703Abstract: The present invention relates to the design, synthesis, and biological study of multi-targeted Ubenimex pro-drug derivative. More particularly, provided in the present invention is a compound as shown by general structural formula (I) (wherein the definition of R is shown in the description). The derivative is a multi-targeted compound obtained by binding an aminopeptidase (APN/CD13) inhibitor, Ubenimex, with some anti-tumor drugs already on the market through an ester bond or amide bond, and is suitable for use as an anti-tumor drug for the treating various malignant tumors, and is especially suitable for treating various solid tumors.Type: GrantFiled: June 6, 2014Date of Patent: January 9, 2018Assignee: Jinan Platinum Pharmatech Co. Ltd.Inventors: Wenfang Xu, Yuqi Jiang, Yingjie Zhang, Mingming Zou, Jinning Hou, Jin Li, Xuejian Wang, Xiaoyang Li
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Patent number: 9787230Abstract: A synchronous motor control device for an electric vehicle is provided which is able to reduce torque ripple through simple calculation and is excellent in practicability. In a synchronous motor control device which controls a traction synchronous motor, torque ripple compensation unit is provided which adds, to a motor drive current, a sine-wave correction current whose phase is opposite to that of torque ripple which is generated in the motor and has a frequency which is six times that of a rotation speed of the motor. Specifically, in the case of a configuration including a vector control type basic controller, the torque ripple compensation unit outputs a correction current command iq_c, and a value iq_ref obtained by adding the correction current command iq_c to a q-axis current command is used for control.Type: GrantFiled: July 23, 2015Date of Patent: October 10, 2017Assignee: NTN CORPORATIONInventors: Akio Nakajima, Yingjie Zhang
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Patent number: 9688161Abstract: A slip control device for an electric vehicle which accurately determines slippage occurrence with only a rotation angle sensor for motor rotation control and perform rapid control to eliminate the slippage, is provided. A threshold calculation module (21) calculates a normal angular acceleration of a motor depending on a manipulation amount of an accelerator to obtain a threshold, and an angular acceleration calculator (22) differentiates a detection value from a rotation angle sensor (3a) twice to calculate an angular acceleration. A slip determination (23) determines whether a drive wheel (7) has slipped, and a torque limitation (25) limits a torque when a slippage has occurred. The determination (23) determines the angular acceleration and a threshold. The determination (23) counts a number of consecutive times it is determined that the threshold is exceeded, and determines that a slippage has occurred, if the number of consecutive times has reached a set value.Type: GrantFiled: December 22, 2015Date of Patent: June 27, 2017Assignee: NTN CORPORATIONInventors: Yingjie Zhang, Koichi Okada, Naoyuki Uchiyama
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Publication number: 20170148938Abstract: This disclosure provides systems, methods, and apparatus related to photodetectors. In one aspect, a photodetector device comprises a substrate, a polycrystalline layer disposed on the substrate, and a first electrode and a second electrode disposed on the polycrystalline layer. The polycrystalline layer comprises nanograins with grain boundaries between the nanograins. The nanograins comprise a semiconductor material. A doping element comprising a halogen is segregated at the grain boundaries. A length of the polycrystalline layer is between and separating the first electrode and the second electrode.Type: ApplicationFiled: November 23, 2016Publication date: May 25, 2017Applicant: The Regents of the University of CaliforniaInventors: A. Paul Alivisatos, Miquel Salmeron, Yingjie Zhang, Daniel J. Hellebusch
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Patent number: 9555721Abstract: A slip control device for an electric automobile includes a maximum rotation frequency calculator to calculate a drive wheel maximum rotation frequency Nmax on the basis of a rotation frequency N1 of a driven wheel and an ideal slip ratio ?min according to the formula (Nmax?N1)/N1=?min. It is determined whether a drive wheel rotation frequency N2 exceeds the frequency Nmax. If it is determined that the frequency N2 exceeds the frequency Nmax, a torque command value to a motor unit is made to be zero.Type: GrantFiled: November 24, 2015Date of Patent: January 31, 2017Assignee: NTN CORPORATIONInventors: Yingjie Zhang, Junichi Hirata
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Patent number: 9475396Abstract: A slip control device for an electric vehicle which determines without error slippage occurrence with only a rotation angle sensor for motor rotation control and perform rapid control to eliminate the slippage. A threshold calculator calculates a normal angular acceleration of a motor depending on a manipulation amount of an accelerator to obtain a threshold, and an angular acceleration calculator differentiates a detection value from a rotation angle sensor twice to calculate an angular acceleration. A slip determination determines whether a wheel driven by a motor has slipped, and a torque limitation limits a torque when determining a slippage. The determination compares the calculated acceleration to the threshold, counts a number of times it is consecutively determined that the calculated acceleration exceeds the threshold, and determines a slippage if the number of times has reached a set value.Type: GrantFiled: November 24, 2015Date of Patent: October 25, 2016Assignee: NTN CORPORATIONInventors: Yingjie Zhang, Junichi Hirata
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Publication number: 20160193919Abstract: In a slip control device for an electric vehicle, a slip control section is provided which is configured to perform, in a control repetition cycle, a series of slip control of determining whether or not a slip state has occurred, on the basis of the number of rotations of a drive wheel and the number of rotations of a driven wheel observed by respective rotation number observation sections and, and decreasing a torque command value to a motor if the slip state has occurred. A vehicle speed detection section configured to detect a vehicle speed and a control repetition cycle change section configured to lengthen the control repetition cycle of the slip control section when the vehicle speed detected by the vehicle speed detection section is in a predetermined low-speed range, are provided.Type: ApplicationFiled: March 14, 2016Publication date: July 7, 2016Applicant: NTN CORPORATIONInventor: Yingjie Zhang
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Publication number: 20160193347Abstract: The present invention relates to the design, synthesis, and biological study of multi-targeted Ubenimex pro-drug derivative. More particularly, provided in the present invention is a compound as shown by general structural formula (I) (wherein the definition of R is shown in the description). The derivative is a multi-targeted compound obtained by binding an aminopeptidase (APN/CD13) inhibitor, Ubenimex, with some anti-tumor drugs already on the market through an ester bond or amide bond, and is suitable for use as an anti-tumor drug for the treating various malignant tumors, and is especially suitable for treating various solid tumors.Type: ApplicationFiled: June 6, 2014Publication date: July 7, 2016Applicant: WEIFANG BOCHUANG INTERNATIONAL ACADEMY OF BIOTECHNOLOGY AND MEDICINEInventors: Wenfang Xu, Yuqi Jiang, Yingjie Zhang, Mingming Zou, Jinning Hou, Jin Li, Xuejian Wang, Xiaoyang Li
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Publication number: 20160107540Abstract: A slip control device for an electric vehicle which accurately determines slippage occurrence with only a rotation angle sensor for motor rotation control and perform rapid control to eliminate the slippage, is provided. A threshold calculation module (21) calculates a normal angular acceleration of a motor depending on a manipulation amount of an accelerator to obtain a threshold, and an angular acceleration calculator (22) differentiates a detection value from a rotation angle sensor (3a) twice to calculate an angular acceleration. A slip determination (23) determines whether a drive wheel (7) has slipped, and a torque limitation (25) limits a torque when a slippage has occurred. The determination (23) determines the angular acceleration and a threshold. The determination (23) counts a number of consecutive times it is determined that the threshold is exceeded, and determines that a slippage has occurred, if the number of consecutive times has reached a set value.Type: ApplicationFiled: December 22, 2015Publication date: April 21, 2016Applicant: NTN CORPORATIONInventors: Yingjie ZHANG, Koichi OKADA, Naoyuki UCHIYAMA
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Publication number: 20160075237Abstract: A slip control device for an electric vehicle which errorlessly determines slippage occurrence with only a rotation angle sensor for motor rotation control and perform rapid control to eliminate the slippage, is provided. A threshold calculator 21 calculates a normal angular acceleration of a motor depending on a manipulation amount of an accelerator to obtain a threshold, and an angular acceleration calculator 22 differentiates a detection value from a rotation angle sensor 3a twice to calculate an angular acceleration. A slip determination 23 determines whether a wheel 7 driven by a motor 3 has slipped, and a torque limitation 25 limits a torque when determining a slippage. The determination 23 compares the calculated acceleration to the threshold, counts a number of times it is consecutively determined that the calculated acceleration exceeds the threshold, and determines a slippage if the number of times has reached a set value.Type: ApplicationFiled: November 24, 2015Publication date: March 17, 2016Applicant: NTN CORPORATIONInventors: Yingjie ZHANG, Junichi HIRATA
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Publication number: 20160075256Abstract: A slip control device for an electric automobile which assuredly eliminates a slippage with a simple configuration without involving a wasted decrease in running performance, is provided. A maximum rotation frequency calculator 22 calculates a drive wheel maximum rotation frequency Nmax on the basis of a rotation frequency N1 of a driven wheel and an ideal slip ratio ?min according to the following formula, (Nmax?N1)/N1=?min. It is determined whether a drive wheel rotation frequency N2 exceeds the frequency Nmax. If it is determined that the frequency N2 exceeds the frequency Nmax, a torque command value to a motor unit 3 is made to be zero.Type: ApplicationFiled: November 24, 2015Publication date: March 17, 2016Applicant: NTN CORPORATIONInventors: Yingjie ZHANG, Junichi HIRATA
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Publication number: 20150333670Abstract: A synchronous motor control device for an electric vehicle is provided which is able to reduce torque ripple through simple calculation and is excellent in practicability. In a synchronous motor control device which controls a traction synchronous motor, torque ripple compensation unit is provided which adds, to a motor drive current, a sine-wave correction current whose phase is opposite to that of torque ripple which is generated in the motor and has a frequency which is six times that of a rotation speed of the motor. Specifically, in the case of a configuration including a vector control type basic controller, the torque ripple compensation unit outputs a correction current command iq_c, and a value iq_ref obtained by adding the correction current command iq_c to a q-axis current command is used for control.Type: ApplicationFiled: July 23, 2015Publication date: November 19, 2015Applicant: NTN CORPORATIONInventors: Akio NAKAJIMA, Yingjie Zhang
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Publication number: 20140172236Abstract: A control device for controlling a steer-by-wire steering control device includes a switch mechanism for detaching a main motor and transmitting a rotation of a sub motor to establish a failsafe mode in which a turning is possible. A first control device controls a reactive force actuator and the sub motor. A second control device drives a main motor. The first control device has an abnormal case switch command unit and, when receiving a result of diagnosis that the main motor fails to operate properly, or when the mutual trouble diagnosis unit diagnoses that the second control device is in a trouble, the switch mechanism is set to the failsafe mode.Type: ApplicationFiled: July 19, 2012Publication date: June 19, 2014Applicant: NTN CORPORATIONInventors: Akiyoshi Nishikawa, Koichi Okada, Akio Nakajima, Yingjie Zhang
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Publication number: 20080260216Abstract: A method for fingerprint image encryption and recognition in the fingerprint recognition system includes: inputting a characteristic fingerprint image through a fingerprint acquisition device of the said system by a user as per a selected angle of imaging; extracting characteristic data from said characteristic fingerprint image; and storing said characteristic data in a form of data module to complete the encryption of the fingerprint image. A method of the present invention may change the data information of existing individual fingerprint characteristics by changing the angle of imaging when a fingerprint is input into the system so that the fingerprint image can be encrypted. Thus, the adverse consequences of a stolen fingerprint image can be avoided despite of objective openness of individual fingerprints. Methods of the invention minimize the security risks and protect users' interests.Type: ApplicationFiled: November 3, 2005Publication date: October 23, 2008Inventors: Minghe Zhang, Yingjie Zhang