Patents by Inventor Zhiwei Liu

Zhiwei 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).

  • Publication number: 20220162169
    Abstract: Specifically, the present invention relates to the 6-oxo-1,6-dihydropyridazine prodrug derivative shown in general formula (I), a preparation method therefor, a pharmaceutical composition containing the derivative, a use thereof as a NaV inhibitor, and a use thereof in the preparation of a drug for the treatment and/or prevention of pain and pain-related diseases.
    Type: Application
    Filed: February 19, 2020
    Publication date: May 26, 2022
    Inventors: Fanglong YANG, Nan YU, Jiangtao CHI, Zhiwei LIU, Feng HE, Weikang TAO
  • Patent number: 11271557
    Abstract: An adaptive gate driver for a driving a power MOSFET to switch is disclosed. The adaptive gate driver includes a load sense circuit to sense a current through the power MOSFET. A controller coupled to the load sense circuit compares the sensed current to a threshold to determine if the load on the power MOSFET is a normal load or a heavy load. Based on the comparison, the controller controls the gate driver to drive the power MOSFET with a first strength level when a normal load determined and at second strength level when a heavy load is determined. The driving strength in the heavy-load condition is lower than the normal-load condition and by lowering the driving strength of the gate driver during the heavy-load condition a voltage across the power MOSFET may be prevented from exceeding a threshold related to a breakdown condition during a switching period.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: March 8, 2022
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Zhiwei Liu, Marc Dagan, Xudong Huang
  • Publication number: 20210360086
    Abstract: Embodiments of this disclosure include an image obtaining method and apparatus, a server, and a storage medium. In the method, a target application process corresponding to a user identifier is obtained, by processing circuitry, from an application process set. A plurality of window image data that is currently generated is obtained, via a data obtaining module, when an image rendering function in the target application process is called. Image synthesis processing is performed on the plurality of window image data, to obtain a user interface image to be displayed. Further, a notification message that includes the user interface image is transmitted to a user terminal corresponding to the user identifier for display on a user interface.
    Type: Application
    Filed: July 27, 2021
    Publication date: November 18, 2021
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Gengxing HUANG, Wei YANG, Xue WEI, Cilang WANG, Borui YU, Zhiwei LIU, Guangdong YANG, Cheng ZENG
  • Publication number: 20210200518
    Abstract: A code reuse processing method, apparatus and electronic device related to a software development technology in the technical field of computers. The method includes: receiving a target request sent by a client of a target unit; in response to the target request, determining a first code line quantity per capita submitted within a target unit time and a reuse code base of the target unit used by a first code base in a dependency manner, the first code base is a code base except the reuse code base; determining reference information configured to indicate an amount of labor capable of being saved for the target unit when the target unit performs a code reuse within a target duration, the reference information based on the first code line quantity, a code line quantity of the reuse code base and a preset reuse proportion; and outputting the reference information to the client.
    Type: Application
    Filed: March 17, 2021
    Publication date: July 1, 2021
    Applicant: Beijing Baidu Netcom Science and Technology Co., Ltd.
    Inventors: Zhiwei Liu, Zhan Shi, Wei Bai, Tao Li
  • Publication number: 20210181235
    Abstract: The invention provides a high-frequency pawl spring probe applied to 5G, which comprises a sleeve with a hollow cavity inside with a spring in it. There is a pawl spring at the upper end in the sleeve; the pawl spring comprises a cylindrical pawl spring cylinder and the elastic sheets at the lower end of the pawl spring cylinder; and the pawl spring cylinder is in an interference fit with the sleeve. A plunger is set in the pawl spring, and the elastic sheets are in contact with the plunger. The advantages of this invention are that: the probe structure has good directivity with small fluctuation of resistance value, which can be used in vibration or under the fluctuating external force, thus avoiding the instantaneously cut-off of the probes at present. The application range is expanded, which well meets the requirements of the equipment reliability in the 5G era.
    Type: Application
    Filed: July 9, 2020
    Publication date: June 17, 2021
    Inventors: Xiaochen QIAN, Xingshun LUO, Zhiwei LIU, Yunshuai GUO
  • Publication number: 20210149280
    Abstract: An image capturing apparatus comprises an apparatus body including an adapter; a gimbal including a rotation shaft mechanism detachably connected to the apparatus body, the rotation shaft mechanism including a connection terminal detachably connected to the adapter and electrically connected to the adapter; a sensor imaging device disposed at the rotation shaft mechanism and electrically connected to the connection terminal; and an image processing device disposed at the apparatus body and electrically connected to the sensor imaging device via the connection terminal and the adapter.
    Type: Application
    Filed: December 31, 2020
    Publication date: May 20, 2021
    Inventors: Wei TUO, Zhiwei LIU, Qiang ZHANG, Zisheng CAO, Yunyou LU
  • Patent number: 10928439
    Abstract: The present disclosure describes a power stage. The power stage includes a metal-oxide semiconductor field-effect transistor (MOSFET) and a driver IC coupled to the MOSFET. The driver IC is configured to switch the MOSFET to an ON-state so that MOSFET conducts a current. The driver IC includes a current monitor circuit that outputs a current monitor signal, which corresponds to the current through the MOSFET when it is in the ON-state. The current monitor signal includes an error caused by a temperature difference between the MOSFET and the driver IC. As a result, the driver IC further includes a compensation circuit that is configured to determine a thermal gradient across the driver IC, and based on the thermal gradient, adjust the current monitor circuit to reduce the error.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: February 23, 2021
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Zhiwei Liu, Marc Dagan, Kaiwei Yao
  • Publication number: 20210046922
    Abstract: A yaw motion control method for a four-wheel distributed vehicle includes: calculating the steering response of the vehicle in a steady state using a nonlinear vehicle model in reference with an understeering degree while constraining by the limit value of the road surface adhesion condition according to the sideslip angle response and the vertical load change in the steady state, calculating the lateral force response and the self-aligning moment response of the tires in the steady state by a magic tire formula, calculating the required additional yaw moment by using the yaw motion balance equation, reasonably distributing the generalized control force to the four drive motors through the optimization algorithm in combination with the current driving conditions; finally, off-line storing and retrieving the calculation results of the off-line distribution of different vehicle parameters required by different upper layers to distribute the torques to the four drive wheels.
    Type: Application
    Filed: July 1, 2020
    Publication date: February 18, 2021
    Applicant: Xiamen King Long United Automotive Industry Co., Ltd.
    Inventors: Liang Su, Lu Xiong, Zhiwei Liu, Bo Leng, Gang Gong, Guangji Song, Ling Huang, Chao Chen, Wuxi Zhu
  • Publication number: 20200336140
    Abstract: An adaptive gate driver for a driving a power MOSFET to switch is disclosed. The adaptive gate driver includes a load sense circuit to sense a current through the power MOSFET. A controller coupled to the load sense circuit compares the sensed current to a threshold to determine if the load on the power MOSFET is a normal load or a heavy load. Based on the comparison, the controller controls the gate driver to drive the power MOSFET with a first strength level when a normal load determined and at second strength level when a heavy load is determined. The driving strength in the heavy-load condition is lower than the normal-load condition and by lowering the driving strength of the gate driver during the heavy-load condition a voltage across the power MOSFET may be prevented from exceeding a threshold related to a breakdown condition during a switching period.
    Type: Application
    Filed: July 6, 2020
    Publication date: October 22, 2020
    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Zhiwei LIU, Marc DAGAN, Xudong HUANG
  • Patent number: 10785983
    Abstract: A method is provided for producing intensified whole-cereal flour by means of pulsed electric fields in collaboration with ultrafine pulverization, which includes: (1) preparing bran, middling and flour by cleaning, modulating and milling cereal grains; (2) performing superfine pulverization on the bran and the middling and performing sieving; (3) preparing a suspension by using water and the sieved bran and middling, and stirring constantly; (4) adding polysaccharide colloids into the suspension, and adjusting the pH to 4.0; (5) performing high-voltage pulse treatment on the suspension to ensure stable flow of the suspension; (6) centrifuging the suspension to separate the supernatant, and drying the obtained precipitate and performing sieving to obtain the treated bran and middling; and (7) mixing the treated bran and middling with flour uniformly to obtain whole-cereal flour.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: September 29, 2020
    Assignee: South China University of Technology
    Inventors: Xin'an Zeng, Jing Hong, Zhong Han, Zhiwei Liu
  • Patent number: 10731721
    Abstract: An elastic adjustable brake pad for use in a train, comprising a brake pad frame (1) provided with a fourth through hole (18), a brake block assembly, and a spiral compression spring (6); the brake block assembly comprises a brake block (16), a rivet (4), a Belleville spring (5), and a rivet sleeve (3), the brake block (16) comprising a friction block (10) and a static sheet steel back (7) fixedly mounted together, the rivet (4) passing through the brake block (16) and being sleeved in turn by the Belleville spring (5) and the rivet sleeve (3); the fourth through hole (18) is a stepped counterbore, and the rivet (4) in the brake block (16) penetrates the fourth through hole (18) and extends outward therefrom, the spiral compression spring (6) being sleeved over the outside of the rivet sleeve (3), and the outer side of one end of the rivet sleeve (3) being provided with a clamping groove clamped to an elastic retainer ring (2), one end of the spiral compression spring (6) abutting a step on which a secondary
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: August 4, 2020
    Assignee: BEIJING BEI MO GAO KE FRICTION MATERIAL CO. LTD
    Inventors: Jianfeng Chen, Changkun Yang, Xiang Zhao, Kai Xiao, Dan Zheng, Guangyu Li, Hua Feng, Xiaohua Liu, Yan Wang, Zhiwei Liu, Longjie Han, Xueqiang Li, Zhen Xiao, Hongbo Yang
  • Patent number: 10720915
    Abstract: An adaptive gate driver for a driving a power MOSFET to switch is disclosed. The adaptive gate driver includes a load sense circuit to sense a current through the power MOSFET. A controller coupled to the load sense circuit compares the sensed current to a threshold to determine if the load on the power MOSFET is a normal load or a heavy load. Based on the comparison, the controller controls the gate driver to drive the power MOSFET with a first strength level when a normal load determined and at second strength level when a heavy load is determined. The driving strength in the heavy-load condition is lower than the normal-load condition and by lowering the driving strength of the gate driver during the heavy-load condition a voltage across the power MOSFET may be prevented from exceeding a threshold related to a breakdown condition during a switching period.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: July 21, 2020
    Assignee: Semiconductor Components Industries, LLC
    Inventors: Zhiwei Liu, Marc Dagan, Xudong Huang
  • Publication number: 20200110128
    Abstract: The present disclosure describes a power stage. The power stage includes a metal-oxide semiconductor field-effect transistor (MOSFET) and a driver IC coupled to the MOSFET. The driver IC is configured to switch the MOSFET to an ON-state so that MOSFET conducts a current. The driver IC includes a current monitor circuit that outputs a current monitor signal, which corresponds to the current through the MOSFET when it is in the ON-state. The current monitor signal includes an error caused by a temperature difference between the MOSFET and the driver IC. As a result, the driver IC further includes a compensation circuit that is configured to determine a thermal gradient across the driver IC, and based on the thermal gradient, adjust the current monitor circuit to reduce the error.
    Type: Application
    Filed: October 3, 2018
    Publication date: April 9, 2020
    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Zhiwei LIU, Marc DAGAN, Kaiwei YAO
  • Publication number: 20200099375
    Abstract: An adaptive gate driver for a driving a power MOSFET to switch is disclosed. The adaptive gate driver includes a load sense circuit to sense a current through the power MOSFET. A controller coupled to the load sense circuit compares the sensed current to a threshold to determine if the load on the power MOSFET is a normal load or a heavy load. Based on the comparison, the controller controls the gate driver to drive the power MOSFET with a first strength level when a normal load determined and at second strength level when a heavy load is determined. The driving strength in the heavy-load condition is lower than the normal-load condition and by lowering the driving strength of the gate driver during the heavy-load condition a voltage across the power MOSFET may be prevented from exceeding a threshold related to a breakdown condition during a switching period.
    Type: Application
    Filed: September 25, 2019
    Publication date: March 26, 2020
    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Zhiwei LIU, Marc DAGAN, Xudong HUANG
  • Patent number: 10469068
    Abstract: An adaptive gate driver for a driving a power MOSFET to switch is disclosed. The adaptive gate driver includes a load sense circuit to sense a current through the power MOSFET. A controller coupled to the load sense circuit compares the sensed current to a threshold to determine if the load on the power MOSFET is a normal load or a heavy load. Based on the comparison, the controller controls the gate driver to drive the power MOSFET with a first strength level when a normal load determined and at second strength level when a heavy load is determined. The driving strength in the heavy-load condition is lower than the normal-load condition and by lowering the driving strength of the gate driver during the heavy-load condition a voltage across the power MOSFET may be prevented from exceeding a threshold related to a breakdown condition during a switching period.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: November 5, 2019
    Assignee: Semiconductor Components Industries, LLC
    Inventors: Zhiwei Liu, Marc Dagan, Xudong Huang
  • Patent number: 10312636
    Abstract: A connector comprises an insulation body and at least two rows of contacts disposed in the insulation body. The at least two rows of contacts extend in a first direction. A plurality of first contacts of a first row of the at least two rows of contacts corresponds to a plurality of second contacts of a second row of the at least two rows of contacts. A pair of corresponding contacts in the first row and second row is staggered in the first direction by a predetermined distance set to be 1.20-1.80 times a contact pitch between a pair of adjacent contacts in each of the first row and second row.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: June 4, 2019
    Assignee: Tyco Electronics (Shanghai) Co. Ltd.
    Inventors: Clarence Yu, Liang Huang, Zhiwei Liu
  • Publication number: 20190138241
    Abstract: Systems, methods, and/or devices are used for storing images. An electronic device includes an image sensor, a solid-state drive (SSD) that includes a Peripheral Component Interconnect Express (PCIe) compatible electrical interface, and a field-programmable gate array (FPGA) coupled to the image sensor and the SSD. The FPGA implements a PCIe intellectual property (IP) core. The FPGA is configured to: receive raw image data from the image sensor; process the raw image data to obtain processed image data; and transfer the processed image data to the SSD through the PCIe compatible electrical interface of the SSD, wherein the transfer through the PCIe compatible electrical interface is driven by the PCIe IP core of the FPGA.
    Type: Application
    Filed: January 8, 2019
    Publication date: May 9, 2019
    Inventors: Wei TUO, Qiang ZHANG, Zhiwei LIU, Ke WANG
  • Patent number: 10193910
    Abstract: It is described a network attack detection method. A topology analysis on network is conducted to obtain a probing path set containing at least one probing path. A first probing path contained in the probing path set is probed by using a probing pattern to obtain a performance metric of the first probing path. It is determined whether the first probing path is subjected to network attack according to the performance metric and a control performance metric.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: January 29, 2019
    Assignees: The Hong Kong Polytechnic University, Tencent Technology (Shenzhen) Company Limited
    Inventors: Lei Xue, Zhiwei Liu, Xianneng Zou, Jingang Hou, Xiapu Luo, Edmond W. W. Chan, Pei Tu, Yuru Shao
  • Patent number: 10178204
    Abstract: It is described an information processing method and device. It is received a request for service data from a client device. In response to the request for service data, it is sent at least two probing packets which contain the service data to the client device on a forward path which is from a server to the client device. It is obtained timing information, which includes: a time stamp corresponding to the service data, a time stamp corresponding to the request for the service data, and time stamps corresponding to at least two backward-path packets sent by the client device on a backward path, the backward path being from the client device to the server. It is determined according to the timing information a one-way path metric.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: January 8, 2019
    Assignees: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED, THE HONG KONG POLYTECHNIC UNIVERSITY
    Inventors: Xiapu Luo, Jingang Hou, Zhiwei Liu, Xianneng Zou, Juhong Wang, Lei Xue, Yajuan Tang, Weigang Wu
  • Publication number: 20180266508
    Abstract: An elastic adjustable brake pad for use in a train, comprising a brake pad frame (1) provided with a fourth through hole (18), a brake block assembly, and a spiral compression spring (6); the brake block assembly comprises a brake block (16), a rivet (4), a Belleville spring (5), and a rivet sleeve (3), the brake block (16) comprising a friction block (10) and a static sheet steel back (7) fixedly mounted together, the rivet (4) passing through the brake block (16) and being sleeved in turn by the Belleville spring (5) and the rivet sleeve (3); the fourth through hole (18) is a stepped counterbore, and the rivet (4) in the brake block (16) penetrates the fourth through hole (18) and extends outward therefrom, the spiral compression spring (6) being sleeved over the outside of the rivet sleeve (3), and the outer side of one end of the rivet sleeve (3) being provided with a clamping groove clamped to an elastic retainer ring (2), one end of the spiral compression spring (6) abutting a step on which a secondary
    Type: Application
    Filed: April 20, 2017
    Publication date: September 20, 2018
    Inventors: Jianfeng CHEN, Changkun YANG, Xiang ZHAO, Kai XIAO, Dan ZHENG, Guangyu LI, Hua FENG, Xiaohua LIU, Yan WANG, Zhiwei LIU, Longjie HAN, Xueqiang LI, Zhen XIAO, Hongbo YANG