Patents by Inventor Yubo Wang

Yubo Wang 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: 20220300733
    Abstract: A display device, a method for producing a display device, and a gesture recognition method are disclosed. The display device includes a display module including a base and an array substrate, a resin layer, a first electrode layer, a pixel definition layer, a light-emitting unit layer, a second electrode layer disposed opposite to the first electrode layer, and an encapsulation layer. The light-emitting unit layer is between the first electrode layer and the second electrode layer and includes a plurality of light-emitting units respectively in a plurality of openings of the pixel definition layer, and an ultrasonic sensor including the second electrode layer, a piezoelectric material layer between the first electrode layer and the pixel definition layer, and a third electrode layer between the pixel definition layer and the resin layer. The piezoelectric material layer includes a plurality of piezoelectric material units separated by the plurality of light-emitting units.
    Type: Application
    Filed: November 22, 2021
    Publication date: September 22, 2022
    Inventors: Yubo WANG, Lei WANG, Yangbing LI, Liang CUI, Yuanyuan MA, Ping ZHANG, Yanling HAN
  • Patent number: 11443197
    Abstract: A system includes a processor that executes instructions stored in a memory to implement an auto-solution advisor on a server. The auto-solution advisor receives a current help request describing in lay language text a problem with a computer application or computing device, and determines whether the current help request is textually similar to a previous help request for a previous problem. Based on the similarity of the current help request to the previous help request, the auto-solution advisor assigns a known solution for the previous problem as the suggested solution for the current help request.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: September 13, 2022
    Assignee: SAP SE
    Inventors: Qi Xu, Jian Sun, Ting Wang, Yubo Mao, Changcheng Li, Yilan Hu, Yanlin Liu
  • Patent number: 11440989
    Abstract: Application of a Mannich base in a flame-retardant polyurethane material is provided. The Mannich base has a structure represented by a formula (I). In the Mannich base, flame-retardant groups, i.e., halogens are introduced at the second, fourth and sixth positions of a phenyl group, and flame-retardant elements, i.e., halogens and nitrogen are introduced into synthesized polyether polyol, giving the synthesized polyether polyol good flame retardance. The amount of active hydrogen in the Mannich base is small so that occurrence of side reactions during the synthesis of the polyether polyol is reduced, and the viscosity of the flame-retardant polyether polyol is lowered. Due to autocatalytic performance of tertiary amido in the flame-retardant polyether polyol, use of a catalyst can be reduced and even avoided during the synthesis. A preparation method of the Mannich base is also provided.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: September 13, 2022
    Assignees: Jiahua Science & Technology Development (Shanghai) Ltd., Jiahua Chemicals Inc.
    Inventors: Yongjian Guan, Ping Li, Zhijun Li, Feng Wang, Yubo Li
  • Publication number: 20220255739
    Abstract: The present invention relates a method for ensuring search completeness of searchable public key encryption, applicable to a blockchain network formed by a plurality of computer nodes. The method at least comprises: the blockchain network receiving a keyword ciphertext and a corresponding file-identifier ciphertext generated by a transmitting end based on the public key encryption, and at least one miner storing the ciphertexts in a ciphertext table; the blockchain network receiving a search trapdoor Tw transmitted by a receiving end, generated according to a private key and a keyword w to be searched; the at least one miner in the blockchain network performing a secure search based on information of a state table and the search trapdoor Tw, and outputting a search result to the blockchain network; and the blockchain network feeding the search result back to the receiving end.
    Type: Application
    Filed: August 2, 2021
    Publication date: August 11, 2022
    Inventors: Peng XU, Tianyang CHEN, Yubo ZHENG, Hai JIN, Wei WANG
  • Publication number: 20220255744
    Abstract: The present invention relates to a method of time-delay encryption with keyword search and system using the same, at least comprising: based on a public key PK, generating searchable ciphertexts Cw and/or file ciphertexts for keywords w of at least one to-be-uploaded file by means of time-delay encryption and uploading the ciphertexts to a cloud server; sending at least one keyword search trapdoor Tw generated for one said to-be-searched keyword w based on a private key SK to the cloud server; and the cloud server, based on the keyword search trapdoor Tw performing keyword search on all the searchable ciphertexts Cw so as to obtain the corresponding searchable ciphertexts Cw, and determining the corresponding file ciphertexts based on the searched searchable ciphertexts Cw and feeding the corresponding file ciphertexts to a receiving end. The present invention increases the difficulty for attackers to launch keyword guessing attacks.
    Type: Application
    Filed: August 6, 2021
    Publication date: August 11, 2022
    Inventors: Peng XU, Yubo ZHENG, Tianyang CHEN, Hai JIN, Wei WANG
  • Patent number: 11401375
    Abstract: A flame-retardant polyether polyol is provided, including a Mannich base and an epoxide. The epoxide is selected from ethylene oxide, propylene oxide and butylene oxide. The Mannich base has a structure represented by a formula (I). In the Mannich base, flame-retardant groups, i.e., halogens are introduced at the second, fourth and sixth positions of a phenyl group, and flame-retardant elements, i.e., halogens and nitrogen are introduced into synthesized polyether polyol. The amount of active hydrogen in the Mannich base is small so that side reactions during synthesis of the polyether polyol are reduced, and the viscosity of the polyether polyol is lowered. A flame-retardant polyurethane material is also provided, synthesized from raw materials comprising the above-mentioned flame-retardant polyether polyol and an isocyanate. Due to autocatalytic performance of tertiary amido in the flame-retardant polyether polyol, use of a catalyst can be reduced and even avoided during the synthesis.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: August 2, 2022
    Assignees: Jiahua Science & Technology Development (Shanghai) Ltd., Jiahua Chemicals Inc.
    Inventors: Yongjian Guan, Ping Li, Zhijun Li, Feng Wang, Yubo Li
  • Patent number: 11398105
    Abstract: An ultrasonic recognition module, a driving method thereof, and a display device. Multiple receiving electrodes are divided into multiple receiving groups. Pulse signal input ends of driving circuits corresponding to the receiving electrodes in the same receiving group are electrically connected to a same pulse signal input line, and pulse signal input ends of driving circuits corresponding to the receiving electrodes in the different receiving groups are electrically connected to different pulse signal input lines.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: July 26, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Pengpeng Wang, Haisheng Wang, Xiaoliang Ding, Yingming Liu, Yangbing Li, Yubo Wang
  • Patent number: 11394906
    Abstract: An image acquisition structure includes a dimming layer, a processing circuit, a plurality of reference circuits and a plurality of image acquisition circuits. The reference circuit includes a first photosensor. The dimming layer is provided on a light incident side of the first photosensor, and covers at least the first photosensor of the reference circuit. An input terminal of the processing circuit is electrically connected to an output terminal of the reference circuit. Input terminals of the plurality of image acquisition circuits are electrically connected to an output terminal of the processing circuit.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: July 19, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wenjuan Wang, Lei Wang, Yapeng Li, Yuanyuan Ma, Yubo Wang
  • Patent number: 11380446
    Abstract: A radiation resistant high-entropy alloy is provided, having an FCC structure, defined by general formula of FeCoNiVMoTixCry, where 0.05?x?0.2, 0.05?y?0.3, x and y are molar ratios. The radiation resistant high-entropy alloy has excellent irradiation resistance and is subject to radiation hardening saturation at high temperature (600° C.) in a condition of a high dose (1-3×1016 ions/cm2) of helium ion irradiation. A lattice constant of the high-entropy alloy decreases abnormally after irradiation. The high-entropy alloy has a radiation resistance far higher than that of a conventional alloy and has an excellent plasticity and specific strength. In an as-cast condition and at room temperature, a tensile break strength of the high-entropy alloy is higher than 580 MPa, an engineering strain (a tensile elongation) of the high-entropy alloy is greater than 30%.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: July 5, 2022
    Assignee: Dalian University of Technology
    Inventors: Tongmin Wang, Yiping Lu, Tingju Li, Zhiqiang Cao, Huanzhi Zhang, Jinchuan Jie, Huijun Kang, Yubo Zhang, Zongning Chen, Enyu Guo
  • Patent number: 11374404
    Abstract: Disclosed is a low-voltage DC power distribution fast switching device. The device includes a positive output terminal electrically connected to a positive pole of a load, and no less than two switching circuits connected in parallel with each other; the switching circuit includes a positive input terminal electrically connected to a positive pole of common negative power supplies, a supplementary diode cluster composed of no less than one diode connected in series, and a thyristor connected between the positive input terminal and the positive output terminal; the positive input terminal is electrically connected to an anode of the supplementary diode cluster and an anode of the thyristor, and the positive output terminal is electrically connected to a cathode of the complementary diode cluster and a cathode of the thyristor.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: June 28, 2022
    Assignees: State Grid Jiangsu Electric Power Co., Ltd. Research Institute, State Grid Corporation of China, State Grid Jiangsu Electric Power Co., Ltd., Jiangsu Electric Power Research Institute Co., Ltd.
    Inventors: Yubo Yuan, Tiankui Sun, Jinggang Yang, Xiaodong Yuan, Lei Gao, Mingming Shi, Peng Li, Wei Su, Kun Yang, Xinyao Si, Jianhua Qin, Xin Fang, Xiaolong Xiao, Ruihuang Liu, Chenqing Wang, Jiahao Guo, Yunlong Jiang, Shuyi Zhuang, Qun Li, Jian Liu, Shu Chen
  • Publication number: 20220201227
    Abstract: An image acquisition structure includes a dimming layer, a processing circuit, a plurality of reference circuits and a plurality of image acquisition circuits. The reference circuit includes a first photosensor. The dimming layer is provided on a light incident side of the first photosensor, and covers at least the first photosensor of the reference circuit. An input terminal of the processing circuit is electrically connected to an output terminal of the reference circuit. Input terminals of the plurality of image acquisition circuits are electrically connected to an output terminal of the processing circuit.
    Type: Application
    Filed: June 25, 2021
    Publication date: June 23, 2022
    Inventors: Wenjuan WANG, Lei WANG, Yapeng LI, Yuanyuan MA, Yubo WANG
  • Publication number: 20220147729
    Abstract: The present disclosure provides a fingerprint sensing sub-circuit, a fingerprint sensing circuit, a fingerprint recognition method, a sensor, a touch display panel and a display device. The fingerprint sensing sub-circuit includes an acoustic wave generation circuit and an acoustic wave reception circuit. The acoustic wave generation circuit is configured to generate an ultrasonic wave. The acoustic wave reception circuit is configured to collect a voltage signal, convert the voltage signal into a current signal, and output the current signal to a signal output end. The acoustic wave generation circuit and the acoustic wave reception circuit are separated from each other, so that the fingerprint sensing sub-circuit operates in a mode where a transmitting operation and a receiving operation are separated from each other.
    Type: Application
    Filed: September 29, 2021
    Publication date: May 12, 2022
    Inventors: Liang CUI, Lei WANG, Yangbing LI, Yubo WANG, Xiufeng LI, Yuanyuan MA
  • Publication number: 20220057766
    Abstract: Methods for predictive maintenance with using machine learning in a building automation system and corresponding systems and computer-readable mediums. A method includes receiving device event data corresponding to a device and executing an inference engine to determine root cause fault data corresponding to the device event data. The method includes executing a predictive maintenance engine to produce a survival analysis for the physical device based on the root cause fault data. The method includes producing updated failure data by the predictive maintenance engine, based on the survival analysis, and providing the updated failure data to the inference engine. The inference engine thereafter uses the updated failure data in a subsequent root cause analysis. The method includes outputting the survival analysis.
    Type: Application
    Filed: August 21, 2020
    Publication date: February 24, 2022
    Inventors: Mingzhi Cao, Zhen Song, Megan McHugh, Yubo Wang
  • Publication number: 20220004729
    Abstract: A fingerprint identification circuit and a driving method thereof, a fingerprint identification module, and a display device are provided. The fingerprint identification circuit includes a plurality of first signal receiving circuit groups, a plurality of second signal receiving circuit groups, and a plurality of first signal acquisition lines. The plurality of first signal acquisition lines are arranged in one-to-one correspondence with the plurality of first signal receiving circuit groups, and each first signal acquisition line is connected with multiple first acquisition signal input terminals of multiple signal receiving circuits in a corresponding one of the first signal receiving circuit groups.
    Type: Application
    Filed: August 21, 2019
    Publication date: January 6, 2022
    Inventors: Pengpeng WANG, Haisheng WANG, Xiaoliang DING, Yingming LIU, Liang CUI, Yubo WANG, Yangbing LI, Xiufeng LI, Xueyou CAO
  • Publication number: 20210405808
    Abstract: The present disclosure provides a touch panel including: a touch region having a plurality of ultrasonic signal detection circuits and a reference region having a plurality of reference circuits, each ultrasonic signal detection circuit includes an ultrasonic sensor and a first driving circuit; the ultrasonic sensor includes a first electrode, a second electrode, and a dielectric layer between the first electrode and the second electrode, the first driving circuit is configured to drive the ultrasonic sensor; each of the plurality of reference circuits includes a reference transceiver and a second driving circuit, the reference transceiver includes a third electrode, a fourth electrode, and a dielectric layer between the third electrode and the fourth electrode; the second driving circuit is configured to drive the reference transceiver; the dielectric layer of the ultrasonic sensor has piezoelectric sensitivity; the dielectric layer of the reference transceiver does not have the piezoelectric sensitivity.
    Type: Application
    Filed: June 23, 2021
    Publication date: December 30, 2021
    Inventors: Liang CUI, Haisheng WANG, Xiaoliang DING, Yingming LIU, Pengpeng WANG, Ping ZHANG, Yubo WANG, Xiufeng LI, Yuanyuan MA
  • Publication number: 20210385360
    Abstract: A display panel includes a display layer, a photosensitive layer and an infrared mask. The display layer is configured to display an image, the display layer has light-transmitting portions, and the light-transmitting portions are configured to transmit infrared light. The photosensitive layer is disposed on a side of the display layer. The infrared mask is disposed on a side of the photosensitive layer proximate to the display layer, the infrared mask has hollowed-out regions, the hollowed-out regions are configured to make the infrared mask have a preset pattern, and a region in the infrared mask except the hollowed-out regions is configured to prevent transmission of the infrared light. The photosensitive layer is configured to receive infrared light passing though the hollowed-out regions and the light-transmitting portions, and convert the infrared light into an image signal.
    Type: Application
    Filed: July 23, 2020
    Publication date: December 9, 2021
    Inventors: Pengpeng WANG, Haisheng WANG, Xiaoliang DING, Yangbing LI, Xueyou CAO, Ping ZHANG, Likai DENG, Yubo WANG
  • Patent number: 11184773
    Abstract: Disclosed in the embodiments of the present invention are a security auditing system and a method for same. The security auditing system comprises an eSIM module. The eSIM module is configured to: on the basis of pre-stored auditing rules, perform a security check on each received network connection request; if the security check is passed, determine said network connection request to be a legitimate request and allow the main control terminal that sent the network connection request to perform mobile network connection; and if the security check is not passed, determine the network connection request to be an illegitimate request and prohibit the main control terminal that sent the network connection request from performing mobile network connection.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: November 23, 2021
    Assignees: BEIJING SMARTCHiP MICROELECTRONICS TECHNOLOGY COMP, STATE GRID INFORMATION & TELECOMMUNICATION GROUP, STATE GRID CORPORATION OF CHINA
    Inventors: Yubo Wang, Xiaoke Tang, Zhongqiang Dun, Yi Hu, Jie Gan, Bingrong Cui, Song Cheng, Tianyu Yan
  • Publication number: 20210197458
    Abstract: The present invention discloses a roll forming device for micro-casting and rolling additive manufacture for large special-shaped pipes, comprises a supporting assembly, a sliding assembly, and a roller system assembly. The sliding assembly includes a guide rail, hydraulic cylinders, hydraulic push rods and a guide rail sliding frame. Two ends of the guide rail are respectively fixedly connected with the centers of two ends of the frame plate in a width direction, the lower surface of the sliding plate of the guide raid sliding frame is slidably connected with the guide rail, housings of the hydraulic cylinders are respectively fixedly connected to the centers at both ends of the frame plate in the width direction. The invention adopts the structures of the guide rail, the hydraulic cylinder and the steering hinge rod to expand the working range of the device and the working types of workable parts.
    Type: Application
    Filed: November 19, 2020
    Publication date: July 1, 2021
    Inventors: Jianfeng SONG, Yubo WANG, Dong WANG, Yinggang SHI, Xuan HE
  • Patent number: 11050386
    Abstract: An inverse pseudo fully-differential amplifier having a common-mode feedback control circuit and a method for maintaining a stable output common-mode level are provided. The inverse pseudo fully-differential amplifier includes the pseudo fully-differential operation circuit and a common-mode feedback control circuit. The pseudo fully-differential operation circuit includes inverter amplifiers (2) and (3). The inverter amplifiers (2) and (3) respectively have a first feedback control terminal and a second feedback control terminal. Input terminals of the common-mode feedback control circuit are respectively connected with output terminals of the inverter amplifier (2) and (3), and are configured to detect common-mode output voltages of the inverter amplifier (2) and (3).
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: June 29, 2021
    Assignee: BEIJING SMARTCHiP MICROELECTRONICS TECHNOLOGY COMP
    Inventors: Yubo Wang, Xiaoke Tang, Yi Hu, Dejian Li, Jin Shao, Xi Feng, Wennan Feng, Jiali Hou
  • Publication number: 20210013834
    Abstract: An inverse pseudo fully-differential amplifier having a common-mode feedback control circuit and a method for maintaining a stable output common-mode level are provided. The inverse pseudo fully-differential amplifier includes the pseudo fully-differential operation circuit and a common-mode feedback control circuit. The pseudo fully-differential operation circuit includes inverter amplifiers (2) and (3). The inverter amplifiers (2) and (3) respectively have a first feedback control terminal and a second feedback control terminal. Input terminals of the common-mode feedback control circuit are respectively connected with output terminals of the inverter amplifier (2) and (3), and are configured to detect common-mode output voltages of the inverter amplifier (2) and (3).
    Type: Application
    Filed: July 3, 2019
    Publication date: January 14, 2021
    Inventors: Yubo WANG, Xiaoke TANG, Yi HU, Dejian LI, Jin SHAO, XI FENG, Wennan FENG, Jiali HOU