Patents by Inventor Xi Chen

Xi Chen 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: 20220052673
    Abstract: The present disclosure provides a high-speed regenerative comparator circuit, including: a signal input stage connected with an input terminal for differential signal input; a latch for caching and serving as a differential signal output terminal; a current source connected with the signal input stage for providing a power supply voltage; a fast path connected with the output terminal and used for increasing a voltage difference of the output terminal and turning on a positive feedback network of the latch; and a reset switch, including a first reset switch and a second reset switch. In the high-speed regenerative comparator circuit of the present disclosure, the transmission delay of the regenerative comparator circuit can be greatly reduced; and in a latch phase, a bias voltage is disconnected by means of timing control, and thus the power consumption of a comparator can be reduced. The present disclosure has simple circuit and high reliability.
    Type: Application
    Filed: August 1, 2019
    Publication date: February 17, 2022
    Applicant: NO.24 RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION
    Inventors: Xi CHEN, Xiaofeng SHEN, Xingfa HUANG, Liang LI, Mingyuan XU, Jian'an WANG, Dongbing FU, Guangbing CHEN
  • Publication number: 20220047575
    Abstract: Compounds are provided that act as potent antagonists of the CCR(9) receptor. Animal testing demonstrates that these compounds are useful for treating inflammation, a hallmark disease for CCR(9). The compounds are generally aryl sulfonamide derivatives and are useful in pharmaceutical compositions, methods for the treatment of CCR(9)-mediated diseases, and as controls in assays for the identification of CCR(9) antagonists.
    Type: Application
    Filed: October 29, 2021
    Publication date: February 17, 2022
    Inventors: Xi CHEN, Junfa FAN, Pingchen FAN, Antoni KRASINSKI, Lianfa LI, Rebecca M. LUI, Jeffrey P. McMAHON, Jay P. POWERS, Yibin ZENG, Penglie ZHANG
  • Patent number: 11251788
    Abstract: A duty cycle adjustment apparatus comprises a first edge extraction unit for extracting a rising edge of a first clock signal; a locking discrimination unit configured to output a control signal according to a comparison result between a discrimination voltage and a stabilized voltage, and select to connect the first clock signal or the clock output signal; an integration unit, configured to convert the feedback signal into the stabilized voltage, amplify the stabilized voltage to reach a reference voltage, and output a control voltage; a charge pump, configured to output a second clock signal according to the control voltage; a second edge extraction unit, configured to extract a falling edge of the second clock signal; and a phase discriminator, configured to compare a phase of the rising edge of the first clock signal with a phase of the falling edge of the second clock signal to generate the clock output signal.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: February 15, 2022
    Assignee: NO.24 RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION
    Inventors: Xi Chen, Liang Li, Guangbing Chen, Yuxin Wang, Dongbing Fu, Xingfa Huang, Mingyuan Xu, Xiaofeng Shen
  • Publication number: 20220042100
    Abstract: Provided herein are methods for quantifying foreign cell-free DNA (cfDNA) via SNP profiling of low-volume blood sample. The methods allow for monitoring the status of organ transplant rejection through analysis of small volumes of patient capillary blood samples collected non-invasively with fingersticks or other devices. The methods also allow for guiding the dosage of immunosuppressant and for preparing for a new organ transplant in case of imminent organ failure.
    Type: Application
    Filed: December 5, 2019
    Publication date: February 10, 2022
    Inventors: David Yu ZHANG, Xi CHEN, Omid VEISEH, Peng DAI, Kerou ZHANG
  • Patent number: 11244642
    Abstract: Disclosed are a display panel, a display device, and a method for driving the same. The display panel includes a plurality of data lines extending in a first direction, and at least one signal compensation line extending in a second direction, insulated from and intersecting with the plurality of data lines, a compensation capacitor is arranged at a position where the plurality of data lines intersect with the signal compensation line, and one terminal of the compensation capacitor is connected with one of the plurality of data lines, and the other terminal of the compensation capacitor is connected with the signal compensation line.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: February 8, 2022
    Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Bo Feng, Shijun Wang, Hongming Zhan, Xi Chen
  • Patent number: 11243648
    Abstract: The present disclosure provides a touch panel, an array substrate and a display device. The touch panel includes a touch control electrode unit including a first electrode and a second electrode which are insulated from each other, and the second electrode surrounds the first electrode. In the touch panel in which the second electrode surrounds the first electrode in the touch control electrode unit, since the first electrode and the second electrode are provided independently, touch control driving and sensing are performed on the first electrode and the second electrode respectively when the touch panel is being touched.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: February 8, 2022
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xingyou Luo, Yue Li, Xi Chen, Yanchen Li, Jinyu Li, Dawei Feng, Yu Zhao, Shaojun Hou, Dong Wang, Mingyang Lv, Wang Guo
  • Publication number: 20220035045
    Abstract: An ephemeris data processing method, electronic device and storage medium are disclosed, which relate to the fields of satellite communication, positioning, and navigation. The ephemeris data processing method includes: receiving raw ephemeris data from a plurality of user devices; analyzing the raw ephemeris data according to an analysis mode of each user device and a satellite ephemeris protocol of each galaxy. According to embodiments of the present disclosure, ephemeris data of a plurality of user devices can be centrally processed and stored, thereby storing more complete ephemeris data and then providing more abundant ephemeris data.
    Type: Application
    Filed: October 14, 2021
    Publication date: February 3, 2022
    Inventors: Guangdi SHAN, Hailu JIA, Xi CHEN, Lei XIA
  • Publication number: 20220033062
    Abstract: The present disclosure provides a method and system for determining a helicopter rotor airfoil.
    Type: Application
    Filed: August 7, 2020
    Publication date: February 3, 2022
    Inventors: Qijun ZHAO, Bo WANG, Simeng JING, Guoqing Zhao, Xi CHEN, Qing WANG
  • Publication number: 20220034993
    Abstract: Within several applications the ability to localize an individual within an environment is beneficial. However, existing indoor localization approaches depend upon at least one of two assumptions. First, the subject(s) localization is achieved by localizing a wireless device carried by the subject and second, wireless fingerprints are established for the localization via a site survey being performed before a system can actually localize the subject(s). However, in many application scenarios, neither of the above two assumptions are true, namely that the user is not carrying an active wireless device or that the site has been surveyed. Accordingly, embodiments of the invention provide for subject localization by a dynamic calibration of wireless signals between a receiver and a transmitter, where neither the receiver or transmitter are associated with an electronic device carried or worn by the subject.
    Type: Application
    Filed: October 19, 2021
    Publication date: February 3, 2022
    Inventors: YI GAO, MICHEL ALLEGUE MARTINEZ, XI CHEN, XUE LIU
  • Patent number: 11239852
    Abstract: The present disclosure provides an error compensation correction system and method for an analog-to-digital converter with a time interleaving structure, the system includes an analog-to-digital converter with a time interleaving structure, a master clock module, a packet clock module, an error correction module, an adaptive processing module and an overall MUX circuit. Through the error compensation correction system and method for the analog-to-digital converter with a time interleaving structure according to the present disclosure, lower correction hardware implementation complexity and higher stability are ensured. The system and method according to the present disclosure are particularly suitable for interchannel mismatch error correction of dense channel time interleaving ADC, and the performance of the time interleaving ADC is improved.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: February 1, 2022
    Assignee: NO.24 RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION
    Inventors: Jie Pu, Gangyi Hu, Jian'an Wang, Guangbing Chen, Liang Li, Ting Li, Daiguo Xu, Xingfa Huang, Xi Chen, Tiehu Li, Youhua Wang
  • Patent number: 11239767
    Abstract: An inverter system, including a pre-conversion circuit, a post-conversion circuit, and a control circuit; the pre-conversion circuit is configured to convert a voltage of a power supply into a DC voltage and output the DC voltage to the post-conversion circuit; a voltage between the pre-conversion circuit and the post-conversion circuit is a DC bus voltage; the post-conversion circuit is configured to output an alternating current; the control circuit is configured to detect a DC component of an output terminal of the post-conversion circuit, calculate a difference value of a zero value and the DC component to obtain a DC component deviation value, and perform PI adjustment on the DC component deviation value to obtain a voltage compensation value; the voltage compensation value is used to adjust the DC bus voltage.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: February 1, 2022
    Assignee: ECOFLOW INC.
    Inventors: Lei Wang, Xi Chen, Hongyu Qian
  • Patent number: 11238161
    Abstract: One example method includes copying code and a security signature of a first off-chip boot to a static random access memory (SRAM) for signature verification, where a function implemented by the first off-chip boot includes initializing a double data rate synchronous dynamic random access memory (DDR), and the DDR initialization includes configuring a DDR secure zone, executing, in the SRAM, the code of the first off-chip boot after the signature verification on the first off-chip boot succeeds to initialize the DDR and configure the DDR secure zone, copying code and a security signature of a second off-chip boot to the DDR secure zone for signature verification, where the second off-chip boot is all of other boots in off-chip boots except the first off-chip boot, and executing, in the DDR secure zone, the code of the second off-chip boot after the signature verification on the second off-chip boot succeeds.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: February 1, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Shifeng Xu, Xi Chen
  • Publication number: 20220027253
    Abstract: Embodiments of the present disclosure relate to a method, an electronic device, and a computer program product for analyzing a log file. The method may include: determining, based on a plurality of reference patterns, corresponding patterns for a plurality of log records in the log file. The method may further include: respectively determining the plurality of log records as a plurality of log identifiers corresponding to the corresponding patterns. The method further includes: determining, from the plurality of log identifiers, a log identifier to be analyzed corresponding to a predetermined event. In addition, the method may further include: selecting a target reference log identifier from a plurality of reference log identifiers corresponding to the plurality of reference patterns, wherein a first similarity between the target reference log identifier and the log identifier to be analyzed is higher than a first threshold similarity.
    Type: Application
    Filed: August 25, 2020
    Publication date: January 27, 2022
    Inventors: Min Gong, Xiaogang Wang, Chun Xi Chen
  • Publication number: 20220023136
    Abstract: A method for guiding a blind, an electronic device, a storage medium and a blind guide product, and related to the technical field of navigation are provided. The method includes: acquiring Beidou satellite data and base station differential data, and determining location information of a user by using a carrier phase differential technology; in response to a blind guide request, generating a blind guide route according to current location information and destination information input by the user; and broadcasting a voice prompt based on the blind guide route. The location accuracy of a user is improved, and blind guide requirements for a complex road section can be met, thereby improving the travel safety for the user.
    Type: Application
    Filed: October 3, 2021
    Publication date: January 27, 2022
    Inventors: Lei XIA, Xi CHEN, Hailu JIA, Guangdi SHAN
  • Publication number: 20220010322
    Abstract: The present invention relates to methods and compositions for gene silencing by genome editing. In some embodiments, nucleases are provided selected from the group consisting of meganucleases (MNs), zinc-finger nucleases (ZFNs), transcription-activator like effector nucleases (TALENs), Cas9 nuclease, Cfp1 nuclease, dCas9-FokI, dCpf1-FokI, chimeric Cas9/Cpf1-cytidine deaminase, chimeric Cas9/Cpf1-adenine deaminase, chimeric FEN1-FokI, and Mega-TALs, a nickase Cas9 (nCas9), chimeric dCas9 non-FokI nuclease and dCpf1 non-FokI nuclease. Additionally, the present invention relates to methods and compositions for gene silencing by genome editing. Also provided are methods and compositions for rearranging a chromosome by genome editing.
    Type: Application
    Filed: November 26, 2019
    Publication date: January 13, 2022
    Applicant: SYNGENTA CROP PROTECTION AG
    Inventors: Jian LV, Xi CHEN, Kun YU, Dawei LIANG, Hongju ZHOU, Jianping XU
  • Publication number: 20220009912
    Abstract: Compounds are provided as chemokine inhibitors having the structure:
    Type: Application
    Filed: March 4, 2021
    Publication date: January 13, 2022
    Inventors: Xi CHEN, Dean R. DRAGOLI, Junfa FAN, Jaroslaw KALISIAK, Antoni KRASINSKI, Manmohan Reddy LELETI, Venkat MALI, Jeffrey McMAHON, Rajinder SINGH, Hiroko TANAKA, Ju YANG, Chao YU, Penglie ZHANG
  • Publication number: 20220009911
    Abstract: Compounds are provided as inhibitors of CXCR2, having the structure:
    Type: Application
    Filed: April 29, 2021
    Publication date: January 13, 2022
    Inventors: Xi CHEN, Dean R. DRAGOLI, Junfa FAN, Jaroslaw KALISIAK, Manmohan Reddy LELETI, Viengkham MALATHONG, Jeffrey McMAHON, Hiroko TANAKA, Ju YANG, Chao YU, Penglie ZHANG, Venkat MALI
  • Publication number: 20220005836
    Abstract: An array substrate, a touch panel and a manufacturing method of an array substrate are provided. The array substrate includes a base substrate and a plurality of gate lines, a plurality of data lines, a common electrode layer and a plurality of pixel units arranged in an array disposed on the base substrate. Each of the pixel units includes a plurality of sub-pixel units defined by gate lines and data lines disposed to intersect each other laterally and vertically. The common electrode layer includes a plurality of common electrode blocks that double as self-capacitance electrodes, each of the common electrode blocks is connected with at least one wire, and the wires are in the middle of sub-pixel units of a same column.
    Type: Application
    Filed: September 17, 2021
    Publication date: January 6, 2022
    Applicants: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Haisheng Wang, Xue Dong, Hailin Xue, Xi Chen, Yingming Liu, Xiaoliang Ding, Weijie Zhao, Shengji Yang, Hongjuan Liu, Changfeng Li, Wei Liu
  • Publication number: 20220004941
    Abstract: A method, computer program, and computer system are provided for load forecasting. Datasets corresponding to source machine learning models and a target domain base model are identified. A set of forecasting models corresponding to the identified datasets are learned. An ensemble model is determined from the learned set of forecasting models based on gradient boosting. An available resource is allocated based on the ensemble model.
    Type: Application
    Filed: November 20, 2020
    Publication date: January 6, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Di WU, Yi Tian Xu, Xi Chen, Ju Wang, Michael Jenkin, Hang Li, Gregory Lewis Dudek, Xue Liu
  • Patent number: 11215863
    Abstract: A light-modulating element, a backlight module, a display device and a method for controlling the same are provided. The light-modulating element includes a first substrate and a second substrate arranged opposite to each other, and a polymer dispersed liquid crystal layer located between the first substrate and the second substrate. The light-modulating element is divided into a plurality of light-modulating zones, and the light-modulating element further includes a first electrode and a second electrode located in each of the plurality of light-modulating zone. A plurality of first electrodes located in different light-modulating zones are independently arranged, and the first electrode and the second electrode are configured to drive a deflection of polymer dispersed liquid crystal molecules in polymer dispersed liquid crystal layer.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: January 4, 2022
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Desheng Xiang, Jianye Tang, Dawei Wang, Jiaqiang Wang, Dong Wang, Yanming Wang, Shuainan Liu, Yajun Guo, Xi Chen