Patents by Inventor Wei Xu

Wei Xu 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: 10445345
    Abstract: Embodiments of the disclosure provide a method, apparatus, and system for identifying data tables. The method comprises acquiring a first dependency relationship between a plurality of data tables; collecting statistics on a path length and a path number of the data tables based on the first dependency relationship; acquiring a second dependency relationship between one or more fields in the data tables; determining importance coefficients of the one or more fields based on the second dependency relationship; determining a degree of association between the data tables by using the path length, the path number, and the importance coefficients; and identifying the data tables based on the degree of association.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: October 15, 2019
    Assignee: ALIBABA GROUP HOLDING LIMITED
    Inventors: Min Pan, Ning Xu, Wei Wang
  • Patent number: 10448013
    Abstract: Encoding or decoding blocks of video frames using multiple reference frames with adaptive temporal filtering can include generating one or more candidate reference frames by applying temporal filtering to one or more frames of a video sequence according to relationships between respective ones of the one or more frames and a current frame of the video sequence. A reference frame to use for predicting the current frame can be selected from the one or more candidate reference frames, and a prediction block can be generated using the selected reference frame. During an encoding operation, the prediction block can be used to encode a block of a current frame of the video sequence. During a decoding operation, the prediction block can be used to decode a block of a current frame of the video sequence.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: October 15, 2019
    Assignee: GOOGLE LLC
    Inventors: Debargha Mukherjee, Yaowu Xu, James Bankoski, Paul Wilkins, Jingning Han, Yuxin Liu, Wei-Ting Lin
  • Patent number: 10448385
    Abstract: Various aspects include a method and an apparatus for receiving a uplink (UL) short burst at an eNB, by determining, at the eNB, one or more tone assignments for one or more channels of the UL short burst, wherein the one or more channels of the UL short burst include a sounding reference signal (SRS), a demodulation reference signal (DMRS), a physical uplink control channel (PUCCH), or a physical uplink shared channel (PUSCH), transmitting the one or more tone assignments to the UE, and receiving the UL short burst from the UE, wherein the UL short burst is generated at the UE based at least on the one or more tone assignments transmitted from the eNB. Methods may include transmitting a uplink (UL) short burst from a user equipment (UE).
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: October 15, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Yi Huang, Wei Zeng, Hao Xu, Renqiu Wang
  • Publication number: 20190313430
    Abstract: The present disclosure provides for adaptive resource management in new radio operations that favors the usage of resources for pilot signals and channel estimation in the transition slots of a slot burst, and the transmission of data in the subsequent slots of the slot burst. A device such as a user equipment (UE) and/or a base station may determine that the UE is operating in a transition state. The device may adapt a first numerology including a first number of symbols per slot used for transmission in the transition slots during the transition state, to a second scaled numerology including a second number of symbols per slot used for transmission in the subsequent slots after the transition state. A ratio of reference signal symbols to data symbol symbols may be greater in the transition slots than in the subsequent slots.
    Type: Application
    Filed: May 1, 2019
    Publication date: October 10, 2019
    Inventors: Alexandros MANOLAKOS, Jing JIANG, Seyong PARK, Hao XU, Wanshi CHEN, Wei ZENG, Peter GAAL, Tingfang JI
  • Publication number: 20190313443
    Abstract: Current approaches to transmitting uplink data in a network often require resources to be granted. In an example, a node or apparatus may configure a plurality of devices to operate in a grant-less mode in accordance with a respective grant-less access allocation. Grant-less operations may be managed, for example, to meet the reliability and latency requirements and battery life requirements for different types of devices. For example, the state transition between grant-less and grant based may be managed.
    Type: Application
    Filed: April 15, 2019
    Publication date: October 10, 2019
    Inventors: Qing Li, Guodong Zhang, Pascal M. Adjakple, Allan Y. Tsai, Qian Zhang, Lakshmi R. Iyer, Wei Chen, Joseph M. Murray, Tianyi Xu
  • Publication number: 20190309603
    Abstract: Systems and methods for simulating subterranean regions having multi-scale, complex fracture geometries. Non-intrusive embedded discrete fracture modeling formulations are applied in conjunction with commercial simulators to efficiently and accurately model subsurface characteristics in regions having complex hydraulic fractures, complex natural fractures, or a combination of both.
    Type: Application
    Filed: April 4, 2018
    Publication date: October 10, 2019
    Applicant: Sim Tech LLC
    Inventors: Kamy Sepehrnoori, Yifei Xu, Wei Yu, Jijun Miao
  • Publication number: 20190308497
    Abstract: The present invention discloses a power transmission system and a vehicle having same.
    Type: Application
    Filed: October 30, 2017
    Publication date: October 10, 2019
    Applicant: BYD COMPANY LIMITED
    Inventors: Yubo LIAN, Heping LING, Zhen ZHAI, Youbin XU, Wei HUANG
  • Patent number: 10440698
    Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided that may be configured to receive a downlink control message, to determine a beta offset value for transmitting UCI based at least in part on the downlink control message, and to transmit the UCI on an uplink shared channel interleaved with data based on the determined beta offset value. The apparatus may identify the beta offset from a set of values based on the downlink control message. An apparatus may identify resources allocated for PUSCH and may map UCI to the identified resources for PUSCH in a frequency interleaved manner over a bandwidth of the identified resources. The apparatus may map data to the identified resources in a time-first or frequency-first manner, and may transmit a signal comprising UCI and data on the identified resources of the PUSCH in accordance with the mapping.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: October 8, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Renqiu Wang, Wanshi Chen, Peter Gaal, Wei Zeng, Hao Xu, Yi Huang
  • Patent number: 10434233
    Abstract: A blood pump control system includes a local processing terminal and a remote processing terminal. The local processing terminal is configured to transmit to the remote processing terminal, collected current state parameters of the blood pump and heart activity indexes, and to drive and control the blood pump according to blood pump adjusting parameters received from the remote processing terminal. The remote processing terminal is configured to obtain current blood pump adjusting parameters according to the current state parameters, and the heart activity indexes received from the local processing terminal, and set adjusting conditions; and to transmit the blood pump adjusting parameters back to the local processing terminal.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: October 8, 2019
    Assignees: Beijing Research Institute of Precise Mechatronics and Controls, RocketHeart Technology Co. LTD
    Inventors: Jian Xu, Jipeng Li, Wei Wang, Jingjing Su, Xue Li, Lei Zhang
  • Patent number: 10440742
    Abstract: Wireless communications systems and methods related to performing hybrid grant-free and grant-based uplink (UL) data transmission. A wireless communication device dynamically selects between a grant-free mode and a grant-based mode based on at least a transmission configuration. The wireless communication device sends a first data packet in the grant-free mode, based on the selecting, using a first UL resource. The wireless communication device sends a second data packet in the grant-based mode, based on the selecting, using a second UL resource allocated to the wireless communication device. Other aspects, embodiments, and features are also claimed and described.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: October 8, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Haitong Sun, Jay Kumar Sundararajan, Joseph Binamira Soriaga, Wanshi Chen, Peter Gaal, Hao Xu, Tingfang Ji, Wei Zeng
  • Publication number: 20190299767
    Abstract: A power transmission system includes: a power source; a speed change unit, where the speed change unit is suitable for being selectively power-coupled to the power source; a first motor generator unit; a system power output portion; a first mode conversion device, where at least one of the speed change unit and the first motor generator unit is power-coupled to or power-decoupled from the system power output portion through the first mode conversion device; and a second mode conversion device, where the speed change unit can be power-coupled to or power-decoupled from the first mode conversion device through the second mode conversion device, and the speed change unit can be power-coupled to the first mode conversion device through the second mode conversion device, so that power from the power source is decelerated sequentially through the speed change unit and the second mode conversion device and then output to the first mode conversion device.
    Type: Application
    Filed: October 30, 2017
    Publication date: October 3, 2019
    Applicant: BYD COMPANY LIMITED
    Inventors: Yubo LIAN, Heping LING, Zhen ZHAI, Youbin XU, Wei HUANG
  • Publication number: 20190304882
    Abstract: The present disclosure relates to a power module and a manufacturing method thereof. The power module includes: a group of switch elements, a molding part and a connector. The group of switch elements includes at least one pair of switch elements. The molding part molds the group of switch elements. The connector includes a signal terminal and a power terminal respectively electrically connected to the signal end and power end of the group of switch elements, and both fanned out from the molding part. The power terminal includes a positive power terminal, a negative power terminal and an output power terminal. The positive power terminal and the negative power terminal are respectively a first metal layer and a second metal layer which are at least partially stacked, and an insulating layer is disposed between the first metal layer and the second metal layer.
    Type: Application
    Filed: January 28, 2019
    Publication date: October 3, 2019
    Applicant: Delta Electronics,Inc.
    Inventors: Shouyu HONG, Haibin XU, Wei CHENG, Tao WANG, Zhenqing ZHAO
  • Publication number: 20190300451
    Abstract: The present invention relates to increasing and/or maintaining nitrogen content in soil by administration of granular or powdered nitrification inhibitors coated with urease inhibitors. In one embodiment, urease inhibitors are dispersed in an improved organo liquid delivery system at concentration levels of 50-90%. In another embodiment, urease inhibitors were applied in a non-aqueous, organo liquid delivery system coating solid nitrification inhibitors utilizing simple blending equipment at temperatures of 20°-70° C. Another embodiment discloses a dry, flowable additive containing a nitrification inhibitor coated with a urease inhibitor which can be administered directly to the soil, to a dry natural and/or a manmade fertilizer or to a liquid fertilizer which provides for the reduction of nitrogen loss from the soil.
    Type: Application
    Filed: February 15, 2018
    Publication date: October 3, 2019
    Inventors: Gary David McKnight, Randall Linwood Rayborn, Charles J Barber, Wei Xu
  • Publication number: 20190299992
    Abstract: A power transmission system for a vehicle includes: a power source; a first motor generator unit; a speed change unit, where the speed change unit is suitable for being selectively power-coupled to the power source, the speed change unit includes a speed change unit output portion, and the speed change unit output portion is suitable for outputting power from at least one of the power source and the first motor generator unit; a system power output portion; and a mode conversion device, where the speed change unit output portion is power-coupled to or power-decoupled from the system power output portion through the mode conversion device, so that the mode conversion device is suitable for decelerating the power received from the speed change unit output portion and then outputting the decelerated power to the system power output portion.
    Type: Application
    Filed: October 30, 2017
    Publication date: October 3, 2019
    Applicant: BYD COMPANY LIMITED
    Inventors: Yubo LIAN, Heping LING, Zhen ZHAI, Youbin XU, Wei HUANG
  • Patent number: 10432105
    Abstract: The present disclosure provides a power frequency current converter, including: an input side and an output side, wherein a current of the input side or the output side is a power frequency current; a switching device; and a controller, configured to control the switching device to be turned on and turned off at an operating frequency, wherein within a half of a power frequency cycle, the controller generates at least two fixed-frequency control signals and the operating frequency of the switching device alters at least twice according to the at least two fixed-frequency control signals, so as to reduce junction temperature of the switching device.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: October 1, 2019
    Assignee: Delta Electronics, Inc.
    Inventors: Hongyang Wu, Weiqiang Zhang, Lizhi Xu, Wei Guan
  • Patent number: 10432362
    Abstract: Hybrid automatic repeat request (HARQ) processes, indicators, and similar methods may be used improve new radio performance in a number of ways. For example HARQ processes may be retransmitted, even before a response is expected, a number of times. Separate acknowledgement may be provided for various code blocks within a single transport block. Multi-bit ACK/NACK signaling may be used to efficiently express the status of individual code blocks or groups of code blocks within a transmission block. Grantless transmissions may be acknowledged implicitly, e.g., via responses comprising downlink control information or sent via a physical hybrid automatic repeat request indicator channel.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: October 1, 2019
    Assignee: Convida Wireless, LLC
    Inventors: Lakshmi R. Iyer, Allan Y. Tsai, Tianyi Xu, Guodong Zhang, Pascal M. Adjakple, Qing Li, Wei Chen, Qian Zhang, Joseph M. Murray
  • Patent number: 10431167
    Abstract: An electronic paper display apparatus, a signal transmission system and a method thereof are provided. The electronic paper display apparatus is configured to transmit an encrypted signal. The electronic paper display apparatus includes an electronic paper display panel and a display driver. The electronic paper display panel is configured to display a first image or a second image. The display driver is electrically coupled to the electronic paper display panel and configured to output a driving signal to the electronic paper display panel. The display driver drives the electronic paper display panel to alternately display the first image and the second image for transmitting the encrypted signal by using the driving signal during a signal transmission period.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: October 1, 2019
    Assignee: E Ink Holdings Inc.
    Inventors: Chuen-Jen Liu, Li-Wei Chou, Jia-Hong Xu, Yu-Ming Lee, Chih-Jen Wu, Chi-Mao Hung
  • Patent number: 10430223
    Abstract: Mechanisms to protect the integrity of memory of a virtual machine are provided. The mechanisms involve utilizing certain capabilities of the hypervisor underlying the virtual machine to monitor writes to memory pages of the virtual machine. A guest integrity driver communicates with the hypervisor to request such functionality. Additional protections are provided for protecting the guest integrity driver and associated data, as well as for preventing use of these mechanisms by malicious software. These additional protections include an elevated execution mode, termed “integrity mode,” as well as protections on the memory pages that store the guest integrity driver. To prevent spurious alerts associated with the GI driver accessing its own data, the hypervisor maintains two page tables. In one copy, pages storing data for the GI driver are not protected and in the other, those pages are protected. The hypervisor switches the page tables when entering and exiting integrity mode.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: October 1, 2019
    Assignee: VMware, Inc.
    Inventors: Wei Xu, Alok Nemchand Kataria, Jeffrey W. Sheldon
  • Publication number: 20190291567
    Abstract: A power transmission system includes: a power source; a first motor generator unit; a system power output portion; a first and a second mode conversion devices. The power source and the first motor generator unit is connected to or disconnected from the system power output portion through the first mode conversion device. The power source can be connected to or disconnected from the first mode conversion device through the second mode conversion device. The second mode conversion device includes a conversion device input shaft, a first conversion device intermediate shaft and a conversion device output shaft, and the conversion device output shaft is connected to the first motor generator unit; and power from the power source is suitable for being decelerated sequentially through the conversion device input shaft, the first conversion device intermediate shaft and the conversion device output shaft and then output to the first mode conversion device.
    Type: Application
    Filed: October 30, 2017
    Publication date: September 26, 2019
    Applicant: BYD COMPANY LIMITED
    Inventors: Wei HUANG, Youbin XU, Zhen ZHAI, Heping LING
  • Publication number: 20190296679
    Abstract: In an electrified vehicle having a synchronous traction motor, an inverter is connected to stator windings by three power cables. If these cables are accidentally connected to the wrong windings, the resulting torque will not match the desired torque, and may even be in the wrong direction. To avoid this problem, a test is performed any time that the cables may have been unplugged and re-connected. The inverter is commanded to generate a rotating magnetic field while the rotor is held stationary, resulting in a positive and a negative response current. A relationship between a phase angle of the negative response current and the rotor position indicates which cables are connected to which windings. If the cables are incorrectly connected, the controller disables the motor and informs an operator which cables to swap to achieve correct connection.
    Type: Application
    Filed: March 21, 2018
    Publication date: September 26, 2019
    Inventors: Silong Li, Wei Xu, Jiyao Wang, Yinghan Xu