Patents by Inventor Yanfu LI

Yanfu LI 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: 11921976
    Abstract: A display method, a displaying device, electronic equipment and a storage medium. The display method comprises: acquiring menu data, target display position data of the menu data on a display screen, and source data, wherein the source data includes N channels of first display data, and the first display data has a preset size; conducting format conversion on the menu data to obtain M channels of second display data with a preset size; fusing the first display data with the second display data according to the target display position to obtain third display data; and displaying the third display data on the display screen.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: March 5, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yanfu Li, Lihua Geng, Qingguo Yang
  • Patent number: 11917125
    Abstract: A test system for stability of video interfaces includes a display, a signal generator, a controller, and an image capturing sensor. The signal generator is configured to transmit multiple video signals to multiple video interfaces of the display. The controller is configured to control the display to sequentially display images according to each video signal. The image capturing sensor is configured to capture the images displayed sequentially by the display according to each video signal, and detect whether an image corresponding to each video signal is abnormal, and transmit a detection result to the controller.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: February 27, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yanfu Li, Lihua Geng, Xitong Ma
  • Patent number: 11798450
    Abstract: A display driving device and a control method thereof, and a display device. The control method includes: generating, by the master processing chip, a read/write synchronization signal, and receiving, by each of the slave processing chip, the read/write synchronization signal; in response to the read/write synchronization signal, caching, by the master processing chip, the received display data of the current to-be-displayed frame image into the frame address of the corresponding memory, reading and processing cached display data of a previous to-be-displayed frame image and transmitting the processed display data; and in response to the read/write synchronization signal, caching synchronously, by each of the slave processing chip, the received display data of the current to-be-displayed frame image into the frame address of the corresponding memory, and reading and processing synchronously cached display data of the previous to-be-displayed frame image and transmitting the processed display data.
    Type: Grant
    Filed: January 19, 2020
    Date of Patent: October 24, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xitong Ma, Lihua Geng, Yanfu Li
  • Publication number: 20230144426
    Abstract: The present invention provides a monitor system and a display control method thereof. The monitor system comprises: a control module, used for sending human-computer interaction interface information and background picture information to a processing module by means of a same channel; the processing module, used for receiving video image information, processing the video image information, the human-computer interaction interface information and the background picture information, and outputting target image information to a display; and the display, used for displaying the target image information. According to the system, background picture information is stored in the control module, and by means of information transmission and processing between the control module and the processing module, target image information can be displayed on the display, thus achieving display control over the monitor system, without the need to additionally arrange an external device to store background picture information.
    Type: Application
    Filed: February 2, 2021
    Publication date: May 11, 2023
    Inventors: Xitong MA, Yanfu LI, Ran DUAN, Haiyan WAN
  • Patent number: 11647151
    Abstract: A video timing conversion method and a video timing conversion device, and a non-transitory computer-readable storage medium are provided. The video timing conversion method includes: analyzing an original timing signal in a form of a differential signal of an original video, to obtain original timing parameters; determining target timing parameters and a target clock signal parameter according to a format of a target video and the original timing parameters; wherein the target timing parameters include a data enabling period number, a field sync data valid row number and a refreshing frequency, which are the same as the data enabling period number, the field sync data valid row number and the refreshing frequency of the original timing parameters, respectively; generating a target timing signal in the form of the differential signal of the target video according to the target timing parameters and the target clock signal parameter.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: May 9, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Congrui Wu, Lihua Geng, Xitong Ma, Yanfu Li, Tianmin Rao
  • Patent number: 11646001
    Abstract: There is provided a data processor for a display device including a display panel having a first resolution. The data processor includes a first mode selector and a player. The first mode selector includes a distance detector, a comparator, and a transmission resolution adjustor. The distance detector may detect a current distance between a viewer and a display surface of the display panel. The comparator determines an amount of change of the current distance from a previous distance. The transmission resolution adjustor determines a second resolution according to a threshold range within which the previous distance falls and the amount of change. The player processes received external image data as intermediate data having the second resolution.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: May 9, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lihua Geng, Ran Duan, Yanfu Li, Xitong Ma
  • Publication number: 20230066703
    Abstract: A method for estimating structural vibration in real time includes steps described below.
    Type: Application
    Filed: August 29, 2022
    Publication date: March 2, 2023
    Applicant: Tsinghua University
    Inventors: Yanfu Li, Min Qian, Shang Xiong
  • Patent number: 11563989
    Abstract: A signal processing device is disclosed, which includes a plurality of channel receivers, a plurality of time code processors in one-to-one correspondence with the channel receivers, a timing generator, a signal processor and a transmitter, wherein each channel receiver is configured to parse an audio-video signal which has a data format defined by the SDI protocol and including a time code that characterizes time information. Each time code processor is configured to extract the time code from a parsed audio-video signal obtained by a corresponding channel receiver, and form first frame image data including a frame time code. The signal processor is configured to form an absolute frame output image based on multiple channels of the first frame of image data, frame time codes therein, and an internal clock signal generated by the timing generator. The transmitter is configured to transmit the absolute frame output image for display.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: January 24, 2023
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Xitong Ma, Lihua Geng, Congrui Wu, Yanfu Li, Xian Wang
  • Patent number: 11553452
    Abstract: A positioning control method includes: determining a position of a positioning object; determining, based on the position of the positioning object, at least one target positioning beacon whose distance to the positioning object satisfies a predetermined condition; and sending a prompt message to the target positioning beacon, wherein the prompt message is intended to instruct a positioning beacon to switch a broadcast frequency from a first frequency to a second frequency which is greater than the first frequency.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: January 10, 2023
    Assignee: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Wei Deng, Hongtao Guan, Baoyu Shi, Zhichao Li, Yanfu Li
  • Patent number: 11539910
    Abstract: Provided are a display module control system, a display apparatus, a control method, a computer device and a medium. The display module control system includes a display module, a display controller driving the display module and a bridge unit connecting the display module and the display controller, wherein the display controller is configured to output a first video signal according to an external video source; the bridging unit is configured to determine whether the display controller is in normal operation state according to the first video signal received, output the first video signal to the display module to play the first video signal when the display controller is in normal operation state, and output a second video signal pre-stored to the display module to play the second video signal when the display controller is not in normal operation state.
    Type: Grant
    Filed: May 19, 2021
    Date of Patent: December 27, 2022
    Assignee: Beijing BOE Technology Development Co., Ltd.
    Inventors: Lihua Geng, Xitong Ma, Yanfu Li
  • Publication number: 20220345769
    Abstract: The present disclosure provides an image data processing device, an image data processing method and a display device. The image data processing device includes: a plurality of writing controllers corresponding to a plurality of image blocks into which an input image is divided, and each configured to obtain input data of one image block in each input image, determine a frame address of the input data stored in a memory, and transmit the input data to the memory in accordance with the determined frame address; and a plurality of reading controllers, each reading controller corresponding to one image block into which an output image is divided, and configured to determine a frame address of the output data of one image block in ach output image in the memory, and read output data from the memory in accordance with the determined frame address.
    Type: Application
    Filed: June 11, 2021
    Publication date: October 27, 2022
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Lihua Geng, Yanfu Li
  • Patent number: 11474556
    Abstract: The present disclosure provides an optical communication drive circuit and method, an optical communication transmitter, an optical communication system, and a vehicle. The optical communication drive circuit includes a clock circuit and a modulation circuit. The clock circuit is configured to output a clock signal with an initial frequency signal as an input under control of information to be transmitted. The clock signal includes alternating first and second frequency signals, the first frequency signal and the second frequency signal having different frequencies and being generated based on the initial frequency signal; and the modulation circuit is configured to modulate an optical signal by the clock signal to obtain a modulated optical signal.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: October 18, 2022
    Assignee: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Yanfu Li, Liming Xiu, Xin Li
  • Patent number: 11441445
    Abstract: A pneumatic device includes an outer ring (1) and a core body (3), at least one stage of secondary stroke flow channel (300) being provided between a nozzle (301) and an exhaust port (302) which are located at an outer ring surface of the core body (3); gas enters from an intake passage (31), is ejected in stages through the nozzle (301) and the secondary stroke flow channel (300) of the core body (3), acts on at least two driving recesses (11) in a circumferential direction of the outer ring (1), and generates a pushing force for the driving recesses (11) to push the outer ring (1) to rotate and do work, so as to achieve a power output, and finally, the gas is discharged from an exhaust passage (310) through the exhaust port (302) of the core body (3).
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: September 13, 2022
    Assignee: TRANF TECHNOLOGY (XIAMEN) CO., LTD.
    Inventors: Shuidian Xu, Yanfu Li, Tao Xu
  • Publication number: 20220279159
    Abstract: A test system for stability of video interfaces includes a display, a signal generator, a controller, and an image capturing sensor. The signal generator is configured to transmit multiple video signals to multiple video interfaces of the display. The controller is configured to control the display to sequentially display images according to each video signal. The image capturing sensor is configured to capture the images displayed sequentially by the display according to each video signal, and detect whether an image corresponding to each video signal is abnormal, and transmit a detection result to the controller.
    Type: Application
    Filed: December 29, 2020
    Publication date: September 1, 2022
    Inventors: Yanfu LI, Lihua GENG, Xitong MA
  • Publication number: 20220261971
    Abstract: An image drawing method, a display apparatus, and a storage medium, relates to the technical field of display. The method comprises: determining a gray-scale value of each of a plurality of target-pixels in a displayed image; determining a pixel quantity in each preset gray-scale level according to the gray-scale value of each of the plurality of target-pixels; representing a maximum quantity of a plurality of pixel quantities by a first numeral system, to read values in a preset digit range of the digit of the first numeral system corresponding to the maximum quantity, determining a proportional coefficient corresponding to the values, and according to a height of a histogram to be drawn, a gray-scale to be drawn and the proportion coefficient, drawing the histogram.
    Type: Application
    Filed: March 25, 2021
    Publication date: August 18, 2022
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xian Wang, Xitong Ma, Congrui Wu, Yanfu Li
  • Publication number: 20220222826
    Abstract: A detection method for an image segmentation manner is provided. The detection method includes obtaining four sub-images input by a serial digital interface and formed by dividing an original image, extracting four groups of reference pixel points from the four sub-images according to a set extraction manner, calculating pixel difference values of pixel points according to the four groups of reference pixel points, and determining an image segmentation manner of the serial digital interface according to the pixel difference values.
    Type: Application
    Filed: December 29, 2020
    Publication date: July 14, 2022
    Inventors: Lihua GENG, Yanfu LI, Xiaodong SHI
  • Publication number: 20220224859
    Abstract: A video timing conversion method and a video timing conversion device, and a non-transitory computer-readable storage medium are provided. The video timing conversion method includes analyzing an original timing signal in a form of a differential signal of an original video, to obtain original timing parameters; determining target timing parameters and a target clock signal parameter according to a format of a target video and the original timing parameters; wherein the target timing parameters include a data enabling period number, a field sync data valid row number and a refreshing frequency, which are the same as the data enabling period number, the field sync data valid row number and the refreshing frequency of the original timing parameters, respectively; generating a target timing signal in the form of the differential signal of the target video according to the target timing parameters and the target clock signal parameter.
    Type: Application
    Filed: January 13, 2021
    Publication date: July 14, 2022
    Inventors: Congrui WU, Lihua GENG, Xitong MA, Yanfu LI, Tianmin RAO
  • Patent number: 11315477
    Abstract: A vehicle-mounted display control method includes: receiving, by a vehicle-mounted control device, a signal to be displayed transmitted by a signal source; converting, by the vehicle-mounted control device, the signal to be displayed into a relay data signal, and transmitting, by the vehicle-mounted control device, the relay data signal to a signal conversion circuit of a corresponding vehicle-mounted display assembly; and converting, by the signal conversion circuit, the relay data signal into a display drive signal, and outputting, by the signal conversion circuit, the display drive signal to at least one display screen of the vehicle-mounted display assembly, so as to drive the at least one display screen to display.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: April 26, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhimao Wang, Weiguo Li, Yanfu Li, Xue Li, Enhui Guan
  • Patent number: 11302294
    Abstract: A control method for a display device includes: receiving a user distance, and determining whether the user distance is smaller than a preset distance: if so, transmitting a first control command to a display screen to control the display screen to enter a local display state, and a second control command to a player to control the player to output local image data; receiving the local image data; and transmitting the local image data to the display screen. The user distance is a distance from the user to a reference surface in a direction perpendicular to the reference surface, and the reference surface is a display surface of the display screen or a plane parallel to the display surface. The preset distance is a minimum distance from the user to the reference surface in a case where the field of view of the user covers the entire active area.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: April 12, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yanfu Li, Lihua Geng
  • Patent number: 11274553
    Abstract: A pneumatic engine, comprising: a rotating outer ring (1), an intermediate shaft (2), a direct drive power core (3), and left and right baffles (4) and (5) where the rotating outer ring (1), the direct drive power core (3), and the left and right baffles (4) and (5) are coaxially provided on the intermediate shaft (2), the rotating outer ring (1) is integrally connected to the left and right baffles (4) and (5) to engage with the intermediate shaft (2) via a bearing, and a closed space is formed, the intermediate shaft (2) is provided with a master air inlet (21) and a master air outlet (22), the direct drive power core (3) is provided with a logarithmic spiral line runner, multiple drive grooves (11) are provided on an inner ring surface of the rotating outer ring (1). The pneumatic engine has a simple structure, high transmission efficiency and strong endurance.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: March 15, 2022
    Assignee: TRANF TECHNOLOGY (XIAMEN) CO., LTD.
    Inventors: Shuidian Xu, Yanfu Li, Jinghua Zeng, Zhimin Chen, Kaixin Jin, Tao Xu, Jianchen Pan, Jianming Chen