Patents by Inventor Ran DUAN

Ran DUAN 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: 20220303493
    Abstract: A time code display system comprising: a video receiver configured for receiving a plurality of non-homologous video signals; a time code parser connected with the video receiver and configured for extracting time code data of each video frame from each video signal; a write controller and a buffer, the write controller being connected with the video receiver and the time code parser; a synchronous clock component configured for generating a local clock signal according to a channel associated clock signal of any video signal; and a read controller and a display, the read controller being connected with the synchronous clock component and the buffer and configured for reading out the video frame of each video signal and the time code data corresponding to the video frame from the buffer at the same time, according to the local clock signal.
    Type: Application
    Filed: October 29, 2021
    Publication date: September 22, 2022
    Inventors: Xitong MA, Lihua GENG, Ran DUAN
  • Publication number: 20220252896
    Abstract: An elastomer includes an elastomer body and at least one elastomer cantilever. The elastomer cantilever is coupled to the elastomer body and extends along an outer edge of the elastomer body, the at least one elastomer cantilever is coupled to the fastener at a predetermined position of an extending part, and the at least one elastomer cantilever is axisymmetric or 90° rotationally symmetric.
    Type: Application
    Filed: May 9, 2020
    Publication date: August 11, 2022
    Inventors: Ran Duan, Haibo Wan, Qian Mei, Dalin Lv, Dengfeng Li
  • Patent number: 11412274
    Abstract: The present disclosure relates to a video transmission method, apparatus and computer-readable storage medium in the field of video play. The method includes: acquiring a first video frame and a second video frame of a video to be transmitted; acquiring difference information of the second video frame relative to the first video frame; and sending the difference information to a video receiving apparatus, the difference information being used for instructing the video receiving apparatus to generate the second video frame based on the difference information and the first video frame after receiving the first video frame. The needed bandwidth is small in the video transmission method of the present disclosure, the video transmission may not be restricted by the distance, and thus video transmission has a high flexibility.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: August 9, 2022
    Assignee: BOE Technology Group CO., LTD.
    Inventors: Zhiguo Zhang, Ran Duan
  • Patent number: 11391589
    Abstract: A signpost-based navigation method, a computer readable storage medium, and an electronic device that implements the method. The method comprises: capturing a visible light signal emitted by a road sign, the visible light signal comprising multiple pieces of different signpost information; selecting, according to indication information corresponding to a current position of a vehicle on a navigation path, at least one piece of signpost information from the multiple pieces of different signpost information as signpost information of a current signpost; and controlling a shutter of shutter glasses so as to display the current signpost through the shutter glasses.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: July 19, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ran Duan, Lihua Geng
  • Publication number: 20220201242
    Abstract: The present disclosure relates to the field of information display, and specifically to a method, device, computer readable storage medium, and electronic device for video frame interpolation. The method comprises: obtaining, based on two input frames, two initial optical flow maps corresponding to the two input frames; optimizing the initial optical flow maps to obtain target optical flow maps; obtaining an interpolation frame kernel, two depth maps and two context feature maps based on the two input frames; obtaining an output frame using a frame synthesis method based on the target optical flow maps, the depth maps, the context feature maps, and the interpolation frame kernel.
    Type: Application
    Filed: May 29, 2020
    Publication date: June 23, 2022
    Inventors: Yunhua LU, Ran DUAN, Guannan CHEN, Lijie ZHANG, Hanwen LIU
  • Patent number: 11361553
    Abstract: A method for tracking an at least partially occluded object. The method includes recognizing a non-occluded portion of the at least partially occluded object in an input image; generating a simulated image of the at least partially occluded object based on features of the non-occluded portion extracted from the input image; determining first coordinates of the at least partially occluded object in a first coordinate system; and converting the first coordinates of the at least partially occluded object in the first coordinate system into second coordinates in a second coordinate system defined in a display apparatus.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: June 14, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ran Duan, Xiaojun Tang
  • Publication number: 20220174222
    Abstract: Provided is a method for marking a focused pixel. The method includes: in response to marking a focused pixel of a first image based on a focus threshold, adjusting the focus threshold in the case that an adjustment condition is satisfied; marking a focused pixel of a second image based on the adjusted focus threshold. The adjustment condition includes: a focus degree of the first image is less than a target focus degree, and/or, the focus degree of the first image is greater than the target focus degree. Moreover, a similarity between the first image and the second image is greater than a similarity threshold, and a difference between a focus degree of the second image and the target focus degree is less than a difference between the focus degree of the first image and the target focus degree.
    Type: Application
    Filed: November 23, 2021
    Publication date: June 2, 2022
    Inventors: Congrui WU, Xitong MA, Lihua GENG, Ran DUAN
  • Publication number: 20220172315
    Abstract: An image processing method and an image processing device are provided. The image processing method includes: acquiring an input image; extracting first and second pixel groups in the input image, wherein the first pixel group comprises first pixels with different positions, and the second pixel group comprises second pixels with different positions, the positions of the first pixels are different from the positions of the second pixels, the number of the first pixels are equal to the number of the second pixels, and the position of each first pixel in the first pixel group corresponds to the position of a respective second pixel in the second pixel group; when a preset similarity condition is satisfied between the first pixel and the respective second pixel, determining a first processing result of the first pixel as a second processing result of the respective second pixel.
    Type: Application
    Filed: June 23, 2021
    Publication date: June 2, 2022
    Inventor: Ran DUAN
  • Publication number: 20220119931
    Abstract: The invention provides a preparation method of a nickel-based wrought superalloy wheel disk forging used at high temperature, in which the alloy has high content of solution strengthening elements W, Mo and strengthening phase ?? phase forming elements Al, Ti, Nb and ?? phase content reaches 55-65%. In view of a series of technical problems caused by high ?? phase to alloy smelting and forging, the high-temperature stress relief annealing, low-temperature stress relief annealing process of steel ingot and high temperature homogenizing annealing of steel bar were proposed by optimizing the thermal process of wheel disk forging and controlling the precipitation and dissolution of ?? phase.
    Type: Application
    Filed: December 29, 2021
    Publication date: April 21, 2022
    Inventors: Shuo Huang, Beijiang Zhang, Wenyun Zhang, Heyong Qin, Ran Duan, Guangpu Zhao, Guohua Xu, Shifu Chen, Qiang Tian
  • Publication number: 20220116567
    Abstract: A video frame interpolation method and device, and a computer-readable storage medium are described.
    Type: Application
    Filed: April 30, 2020
    Publication date: April 14, 2022
    Inventors: Yunhua LU, Guannan CHEN, Ran DUAN, Lijie ZHANG, Hanwen LIU
  • Publication number: 20220103440
    Abstract: Provided in embodiments of the present disclosure are a data processing method and device, the method comprising: receiving a first request message from a target node, the first information containing at least one from among the following: information related to creating a data collection task, information related to updating a data collection task, and information related to cancelling a data collection task; and sending to the target node a first response message used to respond to the first request message.
    Type: Application
    Filed: January 7, 2020
    Publication date: March 31, 2022
    Inventors: Qi SUN, Ran DUAN, Shuangfeng HAN
  • Patent number: 11250763
    Abstract: The present application discloses a display apparatus including a solution-on-chip (SOC) comprising a first input port receiving video data, a second input port configured to receive image data in a first resolution, and a central-processing unit comprising a frame-cut block integrated with an image processor to divide a frame of image data in the first resolution to 4 parts of the frame in a second resolution in a serial order. The display apparatus further includes a FPGA configured to write, read, and process respective one of the 4 parts of the frame in the serial order sent from the SOC to reconstruct a frame of image data in the first resolution. Furthermore, the display apparatus includes a TCON configured to receive the frame of the image data in the first resolution reconstructed by the FPGA and a display panel driven by the TCON to display the frame of image data.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: February 15, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Ran Duan
  • Publication number: 20220013093
    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: Application
    Filed: April 30, 2020
    Publication date: January 13, 2022
    Inventors: Lihua GENG, Ran DUAN, Yanfu LI, Xitong MA
  • Publication number: 20210407460
    Abstract: Provided is a method for displaying an image including: acquiring a to-be-displayed image; correcting the to-be-displayed image based on a target look-up table, wherein in the target look-up table, at least one of the original pixel values and a corresponding corrected pixel value satisfy: an absolute value of a difference between a first chroma and a second chroma is less than or equal to a chroma difference threshold, wherein the first chroma is a chroma of a first pixel, a pixel value of the first pixel being acquired by converting the original pixel value, and the second chroma is a chroma of a second pixel displayed by the display device, a pixel value of the second pixel being acquired by converting the corrected pixel value; and displaying a corrected to-be-displayed image.
    Type: Application
    Filed: June 29, 2021
    Publication date: December 30, 2021
    Inventors: Xian Wang, Ran Duan, Masakazu Okamura
  • Patent number: 11210992
    Abstract: A display controller is provided. The display controller includes n field-programmable gate arrays (FPGAs) (n is an integer greater than 1). A respective one of the n FPGAs includes a first input circuit and an output circuit and a first process circuit connected between the first input circuit and the output circuit. The first input circuit is configured to receive a respective one first sub-image corresponding to the respective one of the n FPGAs. The n first sub-images are combined to form one frame of initial image. The first process circuit is configured to enhance image-resolution of the respective one first sub-image to obtain a respective one second sub-image and the output circuit is configured to deliver the respective one second sub-image corresponding to the respective one of the n FPGAs to a timing-controller.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: December 28, 2021
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Ran Duan
  • Publication number: 20210334555
    Abstract: A method for tracking an at least partially occluded object. The method includes recognizing a non-occluded portion of the at least partially occluded object in an input image; generating a simulated image of the at least partially occluded object based on features of the non-occluded portion extracted from the input image; determining first coordinates of the at least partially occluded object in a first coordinate system; and converting the first coordinates of the at least partially occluded object in the first coordinate system into second coordinates in a second coordinate system defined in a display apparatus.
    Type: Application
    Filed: June 13, 2018
    Publication date: October 28, 2021
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ran Duan, Xiaojun Tang
  • Patent number: 11120018
    Abstract: The present disclosure provides a spark query method and system supporting trusted computing. The method comprises receiving a SQL query statement input by a user; performing parsing, logical plan analysis, logical plan optimization and physical plan generation for the SQL query statement; re-implementing an operator in the physical plan by using SGX API, and generating an execution code; invoking an enclave trusted environment to implement trusted computing for the operator, and executing the execution code. Through the present disclosure, safety of data during the calculation is ensured while the query request is processed in parallel through the spark architecture. Moreover, the spark interface provides the user with more available service and is user-friendly.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: September 14, 2021
    Assignee: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
    Inventors: Zhi Feng, Yu Zhang, Ran Duan
  • Publication number: 20210233459
    Abstract: A display controller is provided. The display controller includes n field-programmable gate arrays (FPGAs) (n is an integer greater than 1). A respective one of the n FPGAs includes a first input circuit and an output circuit and a first process circuit connected between the first input circuit and the output circuit. The first input circuit is configured to receive a respective one first sub-image corresponding to the respective one of the n FPGAs. The n first sub-images are combined to form one frame of initial image. The first process circuit is configured to enhance image-resolution of the respective one first sub-image to obtain a respective one second sub-image and the output circuit is configured to deliver the respective one second sub-image corresponding to the respective one of the n FPGAs to a timing-controller.
    Type: Application
    Filed: August 21, 2019
    Publication date: July 29, 2021
    Applicant: BOE Technology Group Co., Ltd.
    Inventor: Ran Duan
  • Patent number: 11074872
    Abstract: A backlight driving circuit includes a pulse width modulator, at least one time-delay sub-circuit and a driving sub-circuit. The pulse width modulator is configured to transmit a control signal including a plurality of pulses. The at least one time-delay sub-circuit is configured to delay at least one pulse of the control signal from the pulse width modulator that is transmitted to the at least one time-delay sub-circuit by a set time. The driving sub-circuit is coupled to the at least one time-delay sub-circuit, and the driving sub-circuit is configured to drive at least one of a plurality of light-emitting devices in a backlight module to be turned on or off according to a control signal from the at least one time-delay sub-circuit obtained after the at least one pulse is delayed.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: July 27, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Enhui Guan, Ran Duan, Lihua Geng, Xianzhen Li, Qingguo Yang
  • Publication number: 20210227266
    Abstract: The present disclosure relates to a video transmission method, apparatus and computer-readable storage medium in the field of video play. The method includes: acquiring a first video frame and a second video frame of a video to be transmitted; acquiring difference information of the second video frame relative to the first video frame; and sending the difference information to a video receiving apparatus, the difference information being used for instructing the video receiving apparatus to generate the second video frame based on the difference information and the first video frame after receiving the first video frame. The needed bandwidth is small in the video transmission method of the present disclosure, the video transmission may not be restricted by the distance, and thus video transmission has a high flexibility.
    Type: Application
    Filed: April 13, 2018
    Publication date: July 22, 2021
    Inventors: Zhiguo Zhang, Ran Duan