Patents by Inventor Lei Zhu

Lei Zhu 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).

  • Patent number: 11126250
    Abstract: An information handling system includes first and second power supplies and a power assist unit. The power supplies are each configured to provide power to a power rail to power a load of the information handling system, to provide input power indications that indicates whether or not the power supplies are receiving good input power, and to provide a output power indications that indicates whether or not the power supplies are providing good power to the power rail. The power assist unit is coupled to the power rail and includes a power storage element, a converter coupled to the power storage element and to the power rail, and a controller. The controller receives a hold-up signal from the information handling system, and in response to receiving the hold-up signal, directs the converter to provide power from the power storage element to the power rail. The hold-up signal is based upon the input power indications and upon the output power indications.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: September 21, 2021
    Assignee: Dell Products L.P.
    Inventors: Mark A. Muccini, Guangyong Zhu, Thomas R. Thibodeau, Lei Wang
  • Patent number: 11127548
    Abstract: A keyboard and a method for assembling the keyboard are provided. The keyboard comprises a keyswitch module, a keyboard frame, and a plurality of connecting parts. The keyswitch module comprises a baseplate, a circuit board, and a plurality of keyswitch groups. The circuit board is disposed on the baseplate. The plurality of the keyswitch groups is disposed on the circuit board. The baseplate comprises a plurality of connecting holes. The circuit board comprises a plurality of through holes. The plurality of connecting holes respectively corresponds to the plurality of through holes. The keyboard frame is disposed on the keyswitch module, comprising a plurality of keyswitch holes. The plurality of the keyswitch groups is respectively disposed in the corresponding keyswitch holes. The connecting parts are respectively filled in the corresponding connecting holes, connecting to a surface of the keyboard frame close to the circuit board through the corresponding through holes.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: September 21, 2021
    Assignee: LITE-ON Technology (Chang Zhou) Co., LTD.
    Inventors: XiaoQiang Liang, Lei Shi, HongGen Zhu
  • Patent number: 11111200
    Abstract: The present invention provides a method for preparing acrylic acid and methyl acrylate. The method comprises passing the feed gas containing dimethoxymethane and carbon monoxide through a solid acid catalyst to generate acrylic acid and methyl acrylate with a high conversion rate and selectivity at a reaction temperature in a range from 180 to 400 and a reaction pressure in a range from 0.1 MPa to 15.0 MPa, the mass space velocity of dimethoxymethane in the feed gas is in a range from 0.05 h?1 to 10.0 h?1, and the volume percentage of dimethoxymethane in the feed gas is in a range from 0.1% to 95%.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: September 7, 2021
    Assignee: Dalian Institute of Chemical Physics, Chinese Academy of Sciences
    Inventors: Lei Shi, Zongmin Liu, Youming In, Wenliang Zhu, Yong Liu, Hongchao Liu
  • Publication number: 20210271813
    Abstract: Provided are a method for acquiring a parallel corpus, an electronic device, and a storage medium. The method includes: acquiring text data in a target document; performing language detection on the text data; in response to the text data including at least two languages, retaining the text data; detecting a distribution proportion of words in each of the at least two languages among the retained text data; in response to each distribution proportion of words in a first language and in a second language being greater than a preset proportion threshold, retaining the detected text data; extracting sentences in the first language as a first sentence set and sentences in the second language as a second sentence set; performing sentence alignment on the first sentence set and the second sentence set; and determining sentence pairs with alignment degrees greater than a preset alignment degree threshold as the parallel corpus.
    Type: Application
    Filed: February 26, 2021
    Publication date: September 2, 2021
    Inventors: Jun CAO, Lei LI, Mingxuan WANG, Peihao ZHU
  • Publication number: 20210271216
    Abstract: Disclosed are an energy service system of a multi-machine production line and a control method thereof, the method includes reorganizing respective machines in the production line into three types of controllable entities: a drive system, an energy supply bus and an execution device, equipping them with a control center, and selecting a sub-drive system that is idle and is capable of completing the work stage with high energy efficiency to supply energy service for the corresponding execution device through the energy supply bus. Further disclosed is a design method of a multi-machine shared drive system of a production line, which increases the number of basic flow units of each drive unit to a maximum value one by one, and coordinates action time to form a variety of scheduling schemes, and selects a configuration scheme whose total time and total energy consumption are less as the shared drive system.
    Type: Application
    Filed: May 19, 2021
    Publication date: September 2, 2021
    Inventors: Haihong HUANG, Xiang ZOU, Lei LI, Libin ZHU, Zhifeng LIU
  • Patent number: 11108204
    Abstract: A terminating apparatus for terminating a plurality of wires of a cable to a plurality of connection terminations of a communication module, the communication module comprises at least one upright walls each provided with at least one receiving slots for receiving the connection terminations each of which is electrically connected with one wire. The terminating apparatus comprises: at least one terminating portion into which the upright walls of the communication module are able to be inserted, each terminating portion separately holding the plurality of wires of the cable; and at least one cutting apparatus mounted in the terminating portions outside the receiving slot of the communication module and constructed to cut off parts of the wires which extend out the receiving slots after the wires are terminated to the connection terminations of the communication module. The wires may be easily and quickly terminated to the communication module.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: August 31, 2021
    Assignee: CommScope Telecommunications (Shanghai) Co. Ltd.
    Inventors: Jun Cheng, Yuanzhe Zhang, Xindong Zhu, Dongdong Qian, Lei Chen
  • Publication number: 20210262873
    Abstract: A strain gauge (12, 21A, 21B, 25A, 25B, 31, 35, 41, 45) and method of manufacturing a strain gauge (12, 21A, 21B, 25A, 25B, 31, 41, 35, 45) against moisture penetration comprises or includes the step of producing a coated base or cover layer (14, 31 34, 44) by forming a moisture barrier coating (17) on the surface the latter.
    Type: Application
    Filed: August 30, 2019
    Publication date: August 26, 2021
    Inventors: XiangQun Zhu, ZhiGuo Shi, Lei Xu, Jean-Christophe Emery
  • Patent number: 11097749
    Abstract: A multimodal transportation interworking system at least comprises: a rail system; a cargo vehicle (31), which may be movably disposed on a rail beam of the rail system (30); a transfer apparatus (32), for transferring a goods loading device (33) from a transportation tool to the cargo vehicle (31) and loading onto the cargo vehicle, or unloading the goods loading device (33) from the cargo vehicle and conveying the same onto the transportation tool; a processor, which is connected to the cargo moving device (31) and the transfer apparatus (32) so as to control the transfer apparatus to transfer the goods loading device, and after the goods loading device is secured onto the cargo vehicle, to control the cargo vehicle to move on the rail beam.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: August 24, 2021
    Inventors: Haiping Hu, Lijie Su, Lei Zhang, Tao Liu, Haibin Hu, Fengwei Liu, Chuqiang Tang, Baolei Wang, Yueming Hu, Yunqing Zuo, Junqin Zhu
  • Publication number: 20210251608
    Abstract: An ultrasound image processing device and a method for quantitative analysis of cardiac motion are provided. The device comprises: a display; and a processor configured to: obtain an ultrasound presentation, wherein the ultrasound presentation comprises one of an ultrasound image and an ultrasound video; perform a motion tracking on at least one region of interest according to the ultrasound presentation to obtain a tracking result of the at least one region of interest; determine a tracking quality of the tracking result of the at least one region of interest; and control the display to display the tracking quality of the at least one region of interest, wherein the tracking quality is a confidence of the tracking result of the corresponding region of interest and indicates a credibility of the tracking result of the corresponding region of interest.
    Type: Application
    Filed: February 11, 2021
    Publication date: August 19, 2021
    Inventors: Bo WANG, Lei ZHU, Xiaofeng SUI, Dejie LIU, Longfei CONG
  • Publication number: 20210247331
    Abstract: Disclosed herein is a system and method, which utilize primary beam modulation to enable single-scan dual-energy CT (DECT) on a conventional CT scanner. An attenuation sheet with a spatially-varying pattern is placed between the x-ray source and the imaged object. During the CT scan, the modulator selectively hardens the x-ray beam at specific detector locations. Thus, this method simultaneously acquires high and low energy data at each projection angle. High and low energy CT images can then reconstructed from the projections via an iterative CT reconstruction algorithm, which accounts for the spatial modulation of the projected x-rays.
    Type: Application
    Filed: June 29, 2017
    Publication date: August 12, 2021
    Inventors: Lei ZHU, Michael Joseph PETRONGOLO, Jr.
  • Patent number: 11083436
    Abstract: Embodiments of the present disclosure provides an ultrasonic image analysis system which includes an image collection unit which receives and transmits an ultrasonic waveform and obtains two sets of three-dimensional ultrasonic image data; an image analysis unit which registers the two sets of three-dimensional ultrasonic image data to obtain a registration mapping relationship between the two sets of three-dimensional ultrasonic image data; a user interface unit which responds to a treatment done on the two sets of three-dimensional ultrasonic image data by a user through an external hardware device; an image display unit which displays the two sets of three-dimensional ultrasonic image data according to the registration mapping relationship and a result of the treatment of the user interface unit; and an image store unit for storing the two sets of three-dimensional ultrasonic image data and the registration mapping relationship.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: August 10, 2021
    Assignee: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD.
    Inventors: Longfei Cong, Yong Li, Long Xu, Lei Zhu
  • Patent number: 11070203
    Abstract: A driver system may include a first n-type field-effect transistor coupled at its non-gate terminals between an output of the driver system and a first terminal of a supply voltage and configured to drive the output when the first n-type field-effect transistor is activated, a second n-type field-effect transistor coupled at its non-gate terminals between an output of the driver system and a second terminal of the supply voltage and configured to drive the output when the second n-type field-effect transistor is activated, a high-side capacitor coupled to the output of the driver system, and a low-side capacitor coupled to the second terminal of the supply voltage, wherein the high-side capacitor and the low-side capacitor are configured to track and correct for mismatches between a first resistance of the first n-type field-effect transistor and a second resistance of the second n-type field-effect transistor.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: July 20, 2021
    Assignee: Cirrus Logic, Inc.
    Inventors: Jing Bai, Tejasvi Das, Xin Zhao, Lei Zhu, Xiaofan Fei
  • Patent number: 11070732
    Abstract: An image processing method includes obtaining a current image frame. The image processing method also includes in response to feedback information, determining a reference image frame for coding the current image frame based on the feedback information. The feedback information is transmitted by a receiver based on a variable feedback time interval, and is configured to indicate a transmission status of an image frame transmitted by a transmitter to the receiver prior to the feedback information. The image processing method also includes coding the current image frame based on an inter-frame coding and the reference image frame to generate coded data. The image processing method further includes transmitting the coded data to the receiver.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: July 20, 2021
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Lei Zhu, Ning Ma, Ming Gong
  • Publication number: 20210214360
    Abstract: The present invention provides a compound having the structure: wherein R1, R2, R3, R4, and R5 are each independently H, halogen, CF3 or C1-C4 alkyl, wherein two or more of R1, R2, R3, R4, or R5 are other than H; R6 is H, OH, or halogen; and B is a substituted or unsubstituted heterobicycle, wherein when R1 is CF3, R2 is H, R3 is F, R4 is H, and R5 is H, or R1 is H, R2 is CF3, R3 is H, R4 is CF3, and R5 is H, or R1 is Cl, R2 is H, R3 is H, R4 is F, and R5 is H, or R1 is CF3, R2 is H, R3 is F, R4 is H, and R5 is H, or R1 is CF3, R2 is F, R3 is H, R4 is H, and R5 is H, or R1 is Cl, R2 is F, R3 is H, R4 is H, and R5 is H, then B is other than or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: November 16, 2020
    Publication date: July 15, 2021
    Applicant: The Trustees of Columbia University in the City of New York
    Inventors: Konstantin Petrukhin, Christopher Cioffi, Graham Johnson, Rando Allikmets, Emily Freeman, Ping Chen, Michael Conlon, Lei Zhu
  • Patent number: 11057475
    Abstract: Disclosed are methods, systems and apparatus for resuming a transmission link. The method may comprise: if a connection between a first server and a third server that are adjacent to each other in a transmission link is interrupted, a second server serving as a next node of the third server sends a breakpoint resuming request to the first server; on the condition that the first server and the second server mutually determine that the resuming condition between the two is satisfied, the first server establishes a compensation connection egress port of the first server to an ingress port of the second server; and resumption is performed through the compensation connection. The abnormal connection in the transmission link can be compensated and resumed through a node in a private network, so that the idle processing capacity of each node can be utilized, and the utilization rate of processing resources can be improved.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: July 6, 2021
    Assignee: CLOUDMINDS (SHANGHAI) ROBOTICS CO., LTD.
    Inventor: Lei Zhu
  • Patent number: 11050433
    Abstract: A system may include a current digital-to-analog converter (IDAC) configured to convert a digital input signal into an output current signal and a switched-mode power supply configured to provide electrical energy in the form of a supply voltage to the IDAC for operation of the IDAC, the switched-mode power supply configured to track a voltage signal derived from the digital input current signal and generate the supply voltage based on the voltage signal and a voltage headroom above the voltage signal.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: June 29, 2021
    Assignee: Cirrus Logic, Inc.
    Inventors: John L. Melanson, Johann G. Gaboriau, Lei Zhu, Wai-Shun Shum, Xiaofan Fei, Leyi Yin
  • Patent number: 11045051
    Abstract: The present disclosure discloses a blade seat assembly including a blade assembly, a clasp assembly, and a blade seat. The blade assembly includes a blade and a shaft, the blade being connected to one end of the shaft. The blade seat defines a mounting groove, and the other end of the shaft detachably is connected to the mounting groove via the clasp assembly. The present disclosure also provides a blending cup assembly and a food processor, which use the blade seat assembly. The technical scheme of the present disclosure aims to enable the blade assembly to be disassembled.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: June 29, 2021
    Assignee: GUANGDONG MIDEA CONSUMER ELECTRICS MFG CO., LTD.
    Inventors: Lei Zhu, Jianfei Xu, Weijie Chen, Xianghe Zeng, Li Xiao, Weijun Liu, Yan She
  • Patent number: 11043959
    Abstract: A differential output current digital-to-analog (IDAC) circuit may include a delta-sigma modulator configured to receive a digital input signal, a control circuit responsive to the delta-sigma modulator configured to perform a DAC decode operation, a plurality of DAC elements responsive to the DAC decode operation, the plurality of DAC elements configured to, in concert, generate a differential output current signal based on the digital input signal to a load coupled to a pair of output terminals of the IDAC, and a plurality of warming switches, each warming switch coupled to a respective bias transistor of a respective DAC element of the plurality of DAC elements, wherein the control circuit may further be configured to selectively control each such warming switch in order to selectively de-bias and bias a respective bias transistor of such warming switch when a respective DAC element of the respective bias transistor is output-disabled from generating the differential output current signal.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: June 22, 2021
    Assignee: Cirrus Logic, Inc.
    Inventors: John L. Melanson, Johann G. Gaboriau, Lei Zhu, Wai-Shun Shum, Xiaofan Fei, Leyi Yin
  • Publication number: 20210175322
    Abstract: A single integrated circuit may include a signal path configured to generate an output signal from an input signal, wherein the signal path includes an amplifier configured to drive the output signal, a direct-current-to-direct-current (DC-DC) power converter having a power inductor integrated in the single integrated circuit and configured to generate a supply voltage to the amplifier from a source voltage to the DC-DC power converter, and control circuitry for controlling operation of converter switches of the DC-DC power converter in order that the supply voltage tracks at least one among the input signal and the output signal.
    Type: Application
    Filed: September 14, 2020
    Publication date: June 10, 2021
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventors: John L. MELANSON, Lei ZHU, Wai-Shun SHUM, Xiaofan FEI, Johann G. GABORIAU
  • Publication number: 20210175896
    Abstract: A system may include a current digital-to-analog converter (IDAC) configured to convert a digital input signal into an output current signal and a switched-mode power supply configured to provide electrical energy in the form of a supply voltage to the IDAC for operation of the IDAC, the switched-mode power supply configured to track a voltage signal derived from the digital input current signal and generate the supply voltage based on the voltage signal and a voltage headroom above the voltage signal.
    Type: Application
    Filed: July 31, 2020
    Publication date: June 10, 2021
    Inventors: John L. MELANSON, Johann G. GABORIAU, Lei ZHU, Wai-Shun SHUM, Xiaofan FEI, Leyi YIN