Patents by Inventor Tao Fan

Tao Fan 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: 12041002
    Abstract: Certain aspects of the present disclosure provide techniques for receiving an indication of variable tracking reference signal (TRS). A method that may be performed by a user equipment (UE) includes determining a configuration indicating a value for a variable tracking reference signal (TRS) density, monitoring for TRSs from a base station (BS) according to the indicated value for the variable TRS density, and performing at least one of frequency tracking or timing tracking based on the monitoring.
    Type: Grant
    Filed: February 14, 2022
    Date of Patent: July 16, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Mohamed Fouad Ahmed Marzban, Xiaoxia Zhang, Ahmed Abdelaziz Ibrahim Abdelaziz Zewail, Zhifei Fan, Wooseok Nam, Tao Luo, Jing Sun, Qingjiang Tian, Hemant Saggar
  • Patent number: 12041313
    Abstract: A data processing method includes: in response to a service enabling operation in a video application, enabling a video recording service in the video application; collecting, using the video recording service, user voice data; determining and identifying a target text that matches prompting text data associated with the video recording service; and acquiring target video data corresponding to the video recording service until a text position of the target text in the prompting text data is at an end of the prompting text data. Embodiments of this application improve the effectiveness of teleprompting functions during a video recording, and the quality of a recorded video may further be improved.
    Type: Grant
    Filed: November 17, 2022
    Date of Patent: July 16, 2024
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Guangwen Yu, Huafeng Fan, Tao Yang
  • Publication number: 20240169916
    Abstract: The pixel driving circuit includes a first switching transistor connected to a first control line, a reference power line, and a first node, a second switching transistor connected to a scan line, a data line, and the first node; a driving transistor connected to the first node, a driving power line, and a second node; a first capacitor connected to the first node and a third node; a second capacitor connected to the third node and a cathode of a organic light-emitting diode; a third switching transistor connected to the third node, the second node, and a second control line; and a fourth switching transistor connected to the second node, an anode of the organic light-emitting diode, and a third control line.
    Type: Application
    Filed: June 12, 2023
    Publication date: May 23, 2024
    Inventors: Tao FAN, Zhenghui YUAN, Yun Wang, Guanqun Li, Baohong Kang
  • Patent number: 11990094
    Abstract: The pixel driving circuit includes a first switching transistor connected to a first control line, a reference power line, and a first node, a second switching transistor connected to a scan line, a data line, and the first node; a driving transistor connected to the first node, a driving power line, and a second node; a first capacitor connected to the first node and a third node; a second capacitor connected to the third node and a cathode of a organic light-emitting diode; a third switching transistor connected to the third node, the second node, and a second control line; and a fourth switching transistor connected to the second node, an anode of the organic light-emitting diode, and a third control line.
    Type: Grant
    Filed: June 12, 2023
    Date of Patent: May 21, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Tao Fan, Zhenghui Yuan, Yun Wang, Guanqun Li, Baohong Kang
  • Patent number: 11947680
    Abstract: Disclosed are a model parameter training method and a terminal based on federation learning, and a medium. The method includes: determining a feature intersection of a first sample of the first terminal and a second sample of a second terminal, training the first sample based on the feature intersection to obtain a first mapping model, sending the first mapping model to the second terminal; receiving a second encryption mapping model sent by the second terminal, predicting a missing feature of the first sample of the first terminal according to the second encryption mapping model to obtain a first encryption supplementary sample; receiving a first encryption federation learning model parameter sent by a third terminal, training a federation learning model to be trained according to the first encryption federation learning model parameter, and calculating a first encryption loss value; and sending the first encryption loss value to the third terminal.
    Type: Grant
    Filed: April 25, 2021
    Date of Patent: April 2, 2024
    Assignee: WEBANK CO., LTD
    Inventors: Yang Liu, Yan Kang, Tianjian Chen, Qiang Yang, Tao Fan
  • Patent number: 11942038
    Abstract: Disclosed are a pixel driving circuit, a pixel driving method and a display panel. The pixel driving circuit includes the first thin film transistor, the second thin film transistor, the third thin film transistor, the fourth thin film transistor, the fifth thin film transistor, the sixth thin film transistor and the capacitor. The pixel driving circuit can be regarded as a 3 T0.5C circuit structure, so that two adjacent light-emitting devices on the same column can share a pixel driving circuit, and the threshold voltage of the driving thin film transistor and a voltage drop of the supply voltage can be compensated, thus the influence of the threshold voltage defect of the driving thin film transistor and the voltage drop of the supply voltage on the current flowing through the light-emitting device can be eliminated, to improve the display uniformity of the self-light-emitting display panel.
    Type: Grant
    Filed: June 1, 2023
    Date of Patent: March 26, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Tao Fan, Haijiang Yuan
  • Patent number: 11942054
    Abstract: A driving method of a display device and a display device are disclosed, the driving method including: detecting current pixel inversion mode; determining pixel polarities and first data signals for a next frame based on pixel polarities of a current frame and the inversion mode; determining whether the next frame is an overload image based on pixel bright-or-dark values and grayscale values corresponding to the next frame and those corresponding to the overload image; when the next frame is an overload image, modifying a pixel polarity order corresponding to the first data signals, and generating and outputting second data signals to drive the display device to display the next frame; otherwise outputting the first data signals to drive the display device to display the next frame. The pixel polarities corresponding to the first data signals are in a different order than those corresponding to the second data signals.
    Type: Grant
    Filed: December 26, 2022
    Date of Patent: March 26, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Zhenghui Yuan, Tao Fan, Haijiang Yuan
  • Publication number: 20240087540
    Abstract: The pixel driving circuit includes a sequential control unit, a first switch unit, a second switch unit, and a power supply unit. The power supply unit provides a constant driving voltage. In one control period, a voltage difference between a first electrode and a second electrode of the electrowetting pixel device is flipped to prevent the first electrode and the second electrode of the electrowetting pixel device from problems of charge trapping and ink splitting due to charge accumulation.
    Type: Application
    Filed: November 20, 2023
    Publication date: March 14, 2024
    Inventors: Tao FAN, Haijiang YUAN
  • Patent number: 11908411
    Abstract: A display panel includes a plurality of pixel driving circuits arranged in an array along a row direction and a column direction. The display panel further comprises a plurality of first control lines, a plurality of second control lines, a plurality of data lines, and a plurality of power lines. Each of the pixel driving circuits is correspondingly connected to the first control line, the second control line, the data line, and two power lines, and the two power lines comprises a first power line and a second power line. The pixel driving circuit includes: a driving transistor, a storage capacitor, a sampling compensation assembly, a first switch assembly, a second switch assembly and a light emitting device.
    Type: Grant
    Filed: June 5, 2023
    Date of Patent: February 20, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Tao Fan, Rongrong Li
  • Patent number: 11908412
    Abstract: A pixel driving circuit and a display panel are provided. The pixel driving circuit includes a scan line, a data line, a capacitor, a switch module, and a driving transistor. A scanning voltage is at a first level in a sampling phase and in a light-emitting phase, and at a second level in a data writing phase. A data voltage is at a high level in the sampling phase, and at a low level in the data writing phase and in the light-emitting phase. The capacitor includes a first capacitor-terminal and a second capacitor-terminal. The driving transistor includes a gate terminal electrically connected with the second capacitor-terminal, a source terminal electrically connected with the scan line, and a drain terminal configured to be electrically connected with the gate terminal in the sampling phase and be disconnected from the gate terminal in the data writing phase.
    Type: Grant
    Filed: June 23, 2023
    Date of Patent: February 20, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Tao Fan, Haijiang Yuan
  • Publication number: 20240039992
    Abstract: A blockchain-based data processing method, device, and a computer-readable storage medium are provided. A first resource acquisition request of an object identification is transmitted for a target virtual resource to a blockchain network to make the blockchain network query a target ticket identification associated with the object identification and the target virtual resource based on the first resource acquisition request. Metadata is acquired having a binding relationship with the target ticket identification. The target ticket identification is used for characterizing that the object identification has ownership of the target virtual resource. The target virtual resource is acquired according to the metadata returned by the blockchain network. The target virtual resource is controlled to perform an interaction output in response to a triggering operation for interacting with the target virtual resource.
    Type: Application
    Filed: October 10, 2023
    Publication date: February 1, 2024
    Applicant: Tencent Technology (Shenzhen)Company Limited
    Inventors: Rui GUO, Hu LAN, Zongyou WANG, Yang LU, Jun LIANG, Chaojie QI, Yang MO, Yifang SHI, Hui ZHANG, Zimin CHEN, Guihong HUANG, Zuodong LIANG, Bo QIN, Lisen LI, Yubin SONG, Yongjing LI, Chao WANG, Ming LIU, Tao FAN, Yongjia XUE, Shitao XU, Shihao SHE, Gengliang ZHU, Zhigang LU
  • Patent number: 11842687
    Abstract: A pixel driving circuit includes a light-emitting component, a driving transistor, a storage capacitor, a compensation capacitor, and first to third control assemblys. A control terminal, a first terminal and a second terminal of the driving transistor are correspondingly connected to a point G, a point S and a point D. A first response terminal, a receiving terminal and an output terminal of the first control assembly are correspondingly connected to a first control line, a power line and the point S. A second response terminal, a ground terminal, a data signal terminal and first to third connection terminals of the second control assembly are correspondingly connected to a scan line, a ground line, a data line, the point G, a point Q and a first terminal of the storage capacitor. A second terminal of the storage capacitor is connected to the point S.
    Type: Grant
    Filed: June 6, 2023
    Date of Patent: December 12, 2023
    Assignee: HKC CORPORATION LIMITED
    Inventors: Tao Fan, Baohong Kang
  • Publication number: 20230368746
    Abstract: A driving method of a display device and a display device are disclosed, the driving method including: detecting current pixel inversion mode; determining pixel polarities and first data signals for a next frame based on pixel polarities of a current frame and the inversion mode; determining whether the next frame is an overload image based on pixel bright-or-dark values and grayscale values corresponding to the next frame and those corresponding to the overload image; when the next frame is an overload image, modifying a pixel polarity order corresponding to the first data signals, and generating and outputting second data signals to drive the display device to display the next frame; otherwise outputting the first data signals to drive the display device to display the next frame. The pixel polarities corresponding to the first data signals are in a different order than those corresponding to the second data signals.
    Type: Application
    Filed: December 26, 2022
    Publication date: November 16, 2023
    Inventors: ZHENGHUI YUAN, Tao FAN, Haijiang YUAN
  • Publication number: 20230334726
    Abstract: This application discloses a blockchain-based data processing method performed by a computer device. The method includes: in response to a selection operation of media elements associated with a target object, acquiring a target media element combination based on the selected media elements; in response to a virtual resource creation operation for the target media element combination, generating target combined media data corresponding to the target media element combination; and transmitting a virtual resource creation request for the target combined media data to a blockchain network, wherein the blockchain network creates a target on-chain virtual resource corresponding to the target combined media data after determining that the target combined media data passes duplicate check and verification, and an ownership right of the target on-chain virtual resource belonging to the target object.
    Type: Application
    Filed: June 20, 2023
    Publication date: October 19, 2023
    Inventors: Rui GUO, Hu LAN, Zongyou WANG, Jun LIANG, Yang LU, Chaojie QI, Shitao XU, Yang MO, Yifang SHI, Gengliang ZHU, Lisen LI, Yubin SONG, Chao WANG, Ming LIU, Yongjing LI, Hui ZHANG, Zimin CHEN, Zuodong LIANG, Bo QIN, Tao FAN
  • Publication number: 20230245621
    Abstract: A driving voltage compensation circuit including a compensation circuit and a first switching circuit, the first switching circuit connects a driving element and a light emitting device, and the compensation circuit is connected to the driving element. The circuit operates according to an operational timing, the operational timing including a plurality of cycles, each cycle including at least a first time period and a second time period; during the first time period of each of the plurality of cycles, the first switching circuit is turned on, and the compensation circuit is turned off; the energy storage element releases electrical energy to provide a driving voltage to the driving element; during the second time period, the compensation circuit utilizes the received data voltage to store electrical energy for the energy storage element of the compensation circuit.
    Type: Application
    Filed: December 9, 2022
    Publication date: August 3, 2023
    Applicants: MIANYANG HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATION LIMITED
    Inventors: Tao FAN, Baohong Kang
  • Publication number: 20220191318
    Abstract: A recommendation method applied to a terminal includes a rule platform with system-level permission, the rule platform is configured to save system resources and remind a user of a function of an application. The rule platform obtains a first event and a first rule related to the first event from a rule base. The rule platform includes the rule base including a rule and each rule includes a condition. The rule platform updates a matching status of a first condition corresponding to the first event in the first rule. The terminal displays a recommendation result corresponding to the first rule when a matching status of each condition in the first rule indicates that the matching is successful. The first rule is one of the rule related to the first event.
    Type: Application
    Filed: December 21, 2021
    Publication date: June 16, 2022
    Inventors: Mohan Liu, Li Zhou, Jiyong Jiang, Xiyong Wang, Renzhi Yang, Kang Sun, Tao Fan
  • Patent number: 11354071
    Abstract: A method includes receiving, via a microphone at a printer, a voice command based on a tag of an indexed document. The method further includes digitizing the voice command. The method further includes retrieving a supplemental document based on the digitized voice command. The method further includes printing the supplemental document at the printer.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: June 7, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Rowdy K Webb, Elijah Houle, Colton Prettyman, Tao Fan, Leah Davidson
  • Patent number: 11245786
    Abstract: A recommendation method applied to a terminal includes a rule platform with system-level permission, the rule platform is configured to save system resources and remind a user of a function of an application. The rule platform obtains a first event and a first rule related to the first event from a rule base. The rule platform includes the rule base including a rule and each rule includes a condition. The rule platform updates a matching status of a first condition corresponding to the first event in the first rule The terminal displays a recommendation result corresponding to the first rule when a matching status of each condition in the first rule indicates that the matching is successful. The first rule is one of the rule related to the first event.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: February 8, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Mohan Liu, Li Zhou, Jiyong Jiang, Xiyong Wang, Renzhi Yang, Kang Sun, Tao Fan
  • Publication number: 20210248244
    Abstract: Disclosed are a model parameter training method and a terminal based on federation learning, and a medium. The method includes: determining a feature intersection of a first sample of the first terminal and a second sample of a second terminal, training the first sample based on the feature intersection to obtain a first mapping model, sending the first mapping model to the second terminal; receiving a second encryption mapping model sent by the second terminal, predicting a missing feature of the first sample of the first terminal according to the second encryption mapping model to obtain a first encryption supplementary sample; receiving a first encryption federation learning model parameter sent by a third terminal, training a federation learning model to be trained according to the first encryption federation learning model parameter, and calculating a first encryption loss value; and sending the first encryption loss value to the third terminal.
    Type: Application
    Filed: April 25, 2021
    Publication date: August 12, 2021
    Inventors: Yang LIU, Yan KANG, Tianjian CHEN, Qiang YANG, Tao FAN
  • Publication number: 20210232974
    Abstract: Disclosed are a federated-learning based method of acquiring model parameters, a system, and a readable storage medium. The method includes: calculating first data of a first terminal and second data of a second terminal to obtain a loss value; and encrypting, by the second terminal, the loss value, and sending, the encrypted loss value to a third terminal; receiving the encrypted loss value sent by the second terminal, by the third terminal, and decrypting the encrypted loss value to obtain the loss value; detecting whether the model to be trained is at convergence according to the loss value after decrypting; in response that the model to be trained is at convergence, acquiring a gradient corresponding to the loss value; and determining a sample parameter corresponding to the gradient, and determining the sample parameter as a model parameter of the model to be trained.
    Type: Application
    Filed: April 15, 2021
    Publication date: July 29, 2021
    Inventors: Tao FAN, Guoqiang MA, Tianjian CHEN, Qiang YANG, Yang LIU