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).

  • 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
  • Patent number: 11587274
    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: Grant
    Filed: October 29, 2021
    Date of Patent: February 21, 2023
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Xitong Ma, Lihua Geng, Ran Duan
  • Publication number: 20230016175
    Abstract: The present application relates to the field of superalloy, disclosing a method for internal stress regulation in superalloy disk forgings by pre-spinning. The method includes: Step S1, determining a target revolution for regulating internal stress in the disk forgings, and determining a target deformation magnitude of plastic deformation required for regulating the internal stress by the pre-spinning of the disk forgings; and Step S2, performing the pre-spinning of the disk forgings by the target revolution, monitoring a deformation magnitude of the disk forgings, and stopping the pre-spinning when a monitored deformation magnitude of the disk forgings reaches the target deformation magnitude.
    Type: Application
    Filed: July 19, 2021
    Publication date: January 19, 2023
    Applicants: Gaona Aero Material Co., Ltd., AECC COMMERCIAL AIRCRAFT ENGINE CO., LTD., Zhejiang Hiro Aviation Technology Co., Ltd., CENTRAL IRON & STEEL RESEARCH INSTITUTE
    Inventors: Beijiang ZHANG, Wenyun ZHANG, Chenggang TIAN, Aihua HUANG, Guodong ZHANG, Haijun XUAN, Chuanyong CHEN, Shuo HUANG, Heyong QIN, Qiang TIAN, Ran DUAN
  • Publication number: 20220398696
    Abstract: An image processing method and device, and a computer-readable storage medium are disclosed. The method includes: performing a channel expansion process on the input image to obtain a first intermediate image; performing a channel decomposition process for multiple times based on the first intermediate image, wherein each time of channel decomposition process includes: decomposing an image to be processed into a first decomposition image and a second decomposition image; concatenating first decomposition images generated in each time of channel decomposition process and second decomposition image generated in the last time of channel decomposition process to obtain a concatenated image; performing a post-processing process on the concatenated image to obtain a second intermediate image; and fusing the second intermediate image with the input image to obtain the first output image.
    Type: Application
    Filed: December 24, 2020
    Publication date: December 15, 2022
    Inventors: Guannan CHEN, Ran DUAN, Mengdi SUN, Lijie ZHANG
  • Publication number: 20220377265
    Abstract: Embodiments of the disclosure provide a method for detecting bad points in a video, including: performing extreme filtering respectively on first, second and third frames of images which are sequentially and continuously in the video to obtain first, second and third filtered images, respectively; wherein the extreme filtering is one of maximum filtering and minimum filtering; determining first and second difference images according to the first, second and third filtered images; determining a candidate image according to the first and second difference images; and determining that at least part of points in the second frame of image corresponding to the valid point in the candidate image are bad points. The embodiment of the disclosure also provides a device and a computer-readable medium for detecting bad points in the video.
    Type: Application
    Filed: July 5, 2021
    Publication date: November 24, 2022
    Inventors: Dan ZHU, Ran DUAN
  • Patent number: 11508144
    Abstract: The present disclosure provides an object detection method and an object detection device. The object detection device includes: a heterogeneous processor and a memory, the heterogeneous processor including: a processing unit and a programmable logic unit, wherein the programmable logic unit is configured to receive a to-be-detected image, perform feature extraction on the to-be-detected image, and write an extracted feature into the memory; the processing unit is configured to read the feature from the memory, perform target object detection according to the feature, and output a detection result to the programmable logic unit; and the programmable logic unit is further configured to receive the detection result, generate prompt information according to the detection result, and output the prompt information.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: November 22, 2022
    Assignee: Beijing BOE Technology Development Co., Ltd.
    Inventor: Ran Duan
  • Publication number: 20220345021
    Abstract: Disclosed are a motor (20, 40, 50, 60, 70, 80), a camera module (100), and a mobile terminal (200). A motor (20, 40, 50, 60, 70, 80) includes a base (21, 41, 51, 61, 71, 81), a support base (23, 43, 53, 63, 73, 83), and a shape memory alloy actuator (25). The shape memory alloy actuator (25) is fixedly connected between the base (21, 41, 51, 61, 71, 81) and the support base (23, 43, 53, 63, 73, 83), and the shape memory alloy actuator (25) is configured to drive the support base (23, 43, 53, 63, 73, 83) to move relative to the base (21, 41, 51, 61, 71, 81).
    Type: Application
    Filed: October 15, 2020
    Publication date: October 27, 2022
    Inventors: Ran Duan, Yingyong He, Haibo Wan, Dengfeng Li
  • Publication number: 20220318950
    Abstract: A video enhancement method and apparatus, an electronic device, and a storage medium are described. The method comprises: extracting features from M frames of images, so as to obtain at least one first-scale image feature (S310); for each first-scale image feature, performing N-level down-sampling processing on the first-scale image feature, so as to obtain a second-scale image feature (S320); performing N-level up-sampling processing on the second-scale image feature, so as to obtain a third-scale image feature (S330), wherein the input of ith-level up-sampling processing is an image feature obtained after performing superimposition processing on the output of (N+1?i)th-level down-sampling processing and the output of (i?1)th-level up-sampling processing, and the multiple of jth-level up-sampling is the same as the multiple of (N+1?j)th-level down-sampling; and performing superimposition processing on the third-scale image feature and the first-scale image feature.
    Type: Application
    Filed: March 10, 2021
    Publication date: October 6, 2022
    Inventors: Dan ZHU, Ran DUAN, Guannan CHEN
  • Publication number: 20220317962
    Abstract: The present disclosure provides a splicing screen and a control method and system thereof. The splicing screen includes a display panel. A communication unit is configured to receive display data and receive a ready command sent by a slave splicing screen of the splicing screen; a control unit is configured to control, in response to determining that the splicing screen is ready and receiving the ready command, the communication unit to send a specified play command to the slave splicing screen, where the specified play command instructs to play a specified play frame in the display data at a specified play moment; and control the display panel to display the specified play frame at the specified play moment.
    Type: Application
    Filed: March 9, 2022
    Publication date: October 6, 2022
    Inventor: Ran DUAN
  • 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: 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: 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: 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