Patents by Inventor Wenjun Zhao

Wenjun Zhao 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: 11099693
    Abstract: A touch-sensing display substrate is provided. The touch-sensing display substrate includes a touch-sensing structure. The touch-sensing structure includes a plurality of first touch-sensing signal lines; a plurality of first touch-sensing electrodes; and a first insulating layer between the plurality of first touch-sensing signal lines and the plurality of first touch-sensing electrodes. A plurality of first vias at least partially extend into the first insulating layer. The plurality of first vias include at least a through-hole via, through which the respective one of the plurality of first touch-sensing signal lines is electrically connected to a corresponding first touch-sensing electrode.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: August 24, 2021
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE Technology Group Co., Ltd.
    Inventors: Zhiying Bao, Shijun Wang, Bo Feng, Wenkai Mu, Wenjun Xiao, Haoliang Ji, Xiaoxiao Chen, Ji Dong, Bingqing Yang, Tianxin Zhao, Hao Xu, Yang Wang
  • Patent number: 11082707
    Abstract: An encoding method includes obtaining an image frame to be encoded. The image frame includes one or more image blocks. The method further includes determining one or more complexities of the one or more image blocks. Each of the one or more complexities corresponds to one of the one or more image blocks. The method also includes encoding the one or more image blocks based on the one or more complexities.
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: August 3, 2021
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Wenjun Zhao, Jianhua Zhang, Guopeng Zhang, Chengzhang Yang, Hui Sun
  • Publication number: 20210227227
    Abstract: System and method can support bit stream switching in video streaming. A distributed IDR picture transmission technique can be employed for reducing the delay, which is caused by the increase of amount of data to be transmitted, for performing bit stream switching. Additionally or alternatively, a progressive code stream switching technology can ensure smooth data stream transmission even when the bit stream switching happens.
    Type: Application
    Filed: March 5, 2021
    Publication date: July 22, 2021
    Applicant: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Wenjun ZHAO, Xiaozhen ZHENG
  • Publication number: 20210211698
    Abstract: An electronic device includes a slice splitter for splitting video data into a plurality of slices. Each slice contains a plurality of data blocks of multiple data streams, and each data block contains a plurality of data points. The electronic device further includes a plurality of video encoding circuits for concurrently encoding the data blocks of the multiple data streams to obtain encoded data streams and combining the encoded data streams into a combined data stream. The plurality of video encoding circuits include a frequency transformer for transforming the data blocks into frequency coefficients, a quantizer for quantizing the frequency coefficients obtained from the frequency transformer to obtain quantized frequency coefficients, a slice encoder for encoding the quantized frequency coefficients obtained from the quantizer concurrently, and a rate controller for controlling a quantization rate of the quantizer based on at least information from the slice encoder.
    Type: Application
    Filed: March 22, 2021
    Publication date: July 8, 2021
    Inventors: Jianhua ZHANG, Hao WANG, Yue DONG, Bin HAN, Wenjun ZHAO
  • Publication number: 20210203952
    Abstract: An encoder, an encoding system and an encoding method are provided. The encoder includes: a first interface circuit to read pre-generated statistical information of a to-be-encoded image; a rate control circuit to determine a target bit rate of an image tile in the to-be-encoded image based on the statistical information of the to-be-encoded image; a first encoding circuit to perform tier-1 encoding on a code block of the image tile to obtain a bit stream of the image tile; and a second encoding circuit to perform tier-2 encoding on the bit stream of the image tile based on the target bit rate to truncate the bit stream of the image tile. The statistical information of the image tile in the to-be-encoded image is pre-calculated, and the bit stream of the image tile is truncated based on the statistical information, thereby reducing the system bandwidth required by the encoder.
    Type: Application
    Filed: March 10, 2021
    Publication date: July 1, 2021
    Applicant: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Jianhua ZHANG, Bin HAN, Wenjun ZHAO
  • Publication number: 20210201073
    Abstract: Embodiments of the present disclosure provide an image encoding method and device, and a computer-readable storage medium. The method includes: obtaining a to-be-encoded image set, where the to-be-encoded image set includes at least one to-be-encoded image; extracting feature information of each to-be-encoded image by using a preset feature extraction model, to obtain image feature information; determining an encoding parameter corresponding to the image feature information; and sending the encoding parameter to an image encoder, so that the image encoder performs an encoding operation on the to-be-encoded image based on the encoding parameter. Therefore, the to-be-encoded image can be automatically encoded, image encoding efficiency is effectively improved, and human resources can be saved.
    Type: Application
    Filed: March 15, 2021
    Publication date: July 1, 2021
    Applicant: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Wenjun ZHAO, Hengjie LI
  • Publication number: 20210168376
    Abstract: An unmanned aerial vehicle comprises a body coupled with a plurality of propulsion systems and an imaging device; an encoder that encodes video data generated by the imaging device, and a wireless communication system for transmitting the encoded video data. The encoder includes a region of interest (ROI) control module that determines, within an image frame of the video data, a first region and a second region, the ROI control module further setting a first limit indicating a maximum value of quantization parameters for encoding each macroblock within the first region, a second limit indicating a maximum size of the first region, and a third limit indicating a minimum size of the second region.
    Type: Application
    Filed: February 9, 2021
    Publication date: June 3, 2021
    Applicant: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Lei ZHU, Wenjun Zhao, Wenyi Su, Liang Zhao
  • Publication number: 20210160516
    Abstract: A data rate control method includes dividing a frame into a plurality of strips, each of the plurality of strips including a plurality of blocks; determining, according to complexity information of the frame, a class of each of the plurality of strips from a plurality of classes; and determining, using different distribution mechanism for different classes, a number of bits for each of the plurality of strips based on a quota of each of the plurality of strips. The plurality of classes include a noise strip class and a non-noise strip class, where a strip corresponding to the noise strip class is a noise strip, and a strip corresponding to the non-noise strip class is a non-noise strip.
    Type: Application
    Filed: February 5, 2021
    Publication date: May 27, 2021
    Inventors: Wenjun ZHAO, Wei CHEN, Xiaozhen ZHENG
  • Publication number: 20210152621
    Abstract: A computer-implemented method for controlling bit rate includes determining an expected adjustment for a first coding parameter that encodes a first slice based on a difference between a cumulative number of bits used to encode one or more slices of a frame up to and including the first slice and a maximum number of bits allowed to encode the one or more slices, updating a coding parameter threshold based on an indicator that indicates a relationship between the coding parameter threshold and one or more coding parameters used to encode the one or more slices, and determining an actual adjustment for the first coding parameter based on the expected adjustment and the updated coding parameter threshold.
    Type: Application
    Filed: January 4, 2021
    Publication date: May 20, 2021
    Inventors: Wenjun ZHAO, Yannan WU
  • Patent number: 10958923
    Abstract: An electronic device includes a slice splitter and a slice encoder. The slide splitter is configured to split video data into a plurality of slices. Each slice contains a plurality of data blocks and each data block contains a plurality of data points. The slice encoder includes one or more video encoding circuits and is configured to encode the data blocks in a plurality of data streams concurrently to obtain encoded data streams and combine the encoded data streams into a combined data stream.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: March 23, 2021
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Jianhua Zhang, Hao Wang, Yue Dong, Bin Han, Wenjun Zhao
  • Patent number: 10917652
    Abstract: A data rate control method includes determining an adjustment value of a first encoding parameter for encoding a first strip based on a quota of the first strip included in a frame that has not been encoded and based on a quota of at least one already encoded strip included in the frame. At least one of the quota of the first strip and the quota of the at least one already encoded strip relates to a number of shares of bits used for encoding a strip. The data rate control method also includes determining the first encoding parameter based on the adjustment value.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: February 9, 2021
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Wenjun Zhao, Wei Chen, Xiaozhen Zheng
  • Patent number: 10902996
    Abstract: A self-clamping structure for solving a short-circuit resistance problem of amorphous alloy transformers comprises an A-phase coil, a B-phase coil and a C-phase coil which are horizontally arranged, the A-phase coil being in close contact with the B-phase coil, and the B-phase coil being in close contact with the C-phase coil. By using a solidified low-voltage coil as a fastening splint and binding with a high-strength binding strap, the low-voltage coils of the A-phase and the B-phase clamp and fix a weak portion between the A and B phases; and the low-voltage coil of the B-phase and the C-phase clamp and fix a weak portion between the B and C phases. Outer sides of the A- and C-phase coils are each provided with a high-strength insulation splint, so that the splint and the low-voltage coil of corresponding phase constitute the splint pair to clamp and fix the corresponding weak portion.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: January 26, 2021
    Assignee: JIANGSU HUAPENG TRANSFORMER CO., LTD.
    Inventors: Guowei Zhou, Yuanben Huang, Guojun Peng, Wenjun Zhao
  • Publication number: 20210006802
    Abstract: An encoding method includes obtaining an image frame to be encoded. The image frame includes one or more image blocks. The method further includes determining one or more complexities of the one or more image blocks. Each of the one or more complexities corresponds to one of the one or more image blocks. The method also includes encoding the one or more image blocks based on the one or more complexities.
    Type: Application
    Filed: September 23, 2020
    Publication date: January 7, 2021
    Inventors: Wenjun ZHAO, Jianhua ZHANG, Guopeng ZHANG, Chengzhang YANG, Hui SUN
  • Publication number: 20210006807
    Abstract: Encoding apparatuses are provided. The encoding apparatus includes: a first buffer configured to buffer a quantized coefficient of an image block that is input by a quantization circuit; an information generation circuit configured to detect the quantized coefficient of the image block sequentially to obtain run-length encoding information; a second buffer configured to buffer the run-length encoding information generated by the information generation circuit; and a processing circuit configured to: when the second buffer stores run-length encoding information, read the run-length encoding information from the second buffer, read the quantized coefficient corresponding to the run-length encoding information from the first buffer, and output the run-length encoding information and the corresponding quantized coefficient to an entropy encoding circuit.
    Type: Application
    Filed: September 17, 2020
    Publication date: January 7, 2021
    Applicant: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Jianhua Zhang, Bin Han, Wenjun Zhao, Ming Cui
  • Patent number: 10887365
    Abstract: A computer-implemented method for controlling bit rate includes determining a difference between a cumulative number of bits used to encode one or more slices of a frame up to and including a first slice encoded using a first coding parameter and a maximum number of bits allowed to encode the one or more slices of the frame, updating a coding parameter threshold based at least in part on a counter that indicates a number of times when one or more coding parameters used to encode the one or more slices reach or exceed the coding parameter threshold, and determining a second coding parameter used to encode a second slice of the frame based at least in part on the difference and the updated coding parameter threshold.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: January 5, 2021
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Wenjun Zhao, Yannan Wu
  • Publication number: 20200160264
    Abstract: A network computer system that determines metrics related to effort and cost on the part of deliverers who deliverer items for delivery orders. The network computer system can implement operations to facilitate or mitigate features that cause deliverers to expend effort or cost when completing delivery tasks.
    Type: Application
    Filed: November 15, 2018
    Publication date: May 21, 2020
    Inventors: Scott Silverman, Martin Ken Iyoya, Wenjun Zhao, Zhen Zeng
  • Publication number: 20190307855
    Abstract: The present invention relates to fibronectin-based scaffold domain proteins that bind to myostatin. The invention also relates to the use of these proteins in therapeutic applications to treat muscular dystrophy, cachexia, sarcopenia, osteoarthritis, osteoporosis, diabetes, obesity, COPD, chronic kidney disease, heart failure, myocardial infarction, and fibrosis. The invention further relates to cells comprising such proteins, polynucleotides encoding such proteins or fragments thereof, and to vectors comprising the polynucleotides encoding the proteins.
    Type: Application
    Filed: February 14, 2019
    Publication date: October 10, 2019
    Inventors: Sharon CLOAD, Linda ENGLE, Dasa LIPOVSEK, Malavi MADIREDDI, Ginger Chao RAKESTRAW, Joanna SWAIN, Wenjun ZHAO, Hui WEI, Aaron P. YAMNIUK, Vidhyashankar RAMAMURTHY, Alexander T. KOZHICH, Martin J. CORBETT, Stanley Richard KRYSTEK, JR.
  • Publication number: 20190297332
    Abstract: A method for video decoding includes obtaining a bit stream for a sequence of image frames, each of which is partitioned into a plurality of sections according to a partition scheme, obtaining an indicator indicating that decoding prediction dependency for a particular section of each image frame in the sequence of image frames is constrained within said particular section, performing decoding prediction for said particular section of a first image frame in the sequence of image frames based on said particular section of a second image frame in the sequence of image frames, and decoding said particular section of the first image frame based on the decoding prediction.
    Type: Application
    Filed: June 12, 2019
    Publication date: September 26, 2019
    Inventors: Xiaozhen ZHENG, Wenjun ZHAO
  • Patent number: 10406212
    Abstract: The present invention relates to fibronectin-based scaffold domain proteins that bind to myostatin. The invention also relates to the use of these proteins in therapeutic applications to treat muscular dystrophy, cachexia, sarcopenia, osteoarthritis, osteoporosis, diabetes, obesity, COPD, chronic kidney disease, heart failure, myocardial infarction, and fibrosis. The invention further relates to cells comprising such proteins, polynucleotides encoding such proteins or fragments thereof, and to vectors comprising the polynucleotides encoding the proteins.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: September 10, 2019
    Assignee: BRISTOL-MYERS SQUIBB COMPANY
    Inventors: Sharon Cload, Linda Engle, Dasa Lipovsek, Malavi Madireddi, Ginger Chao Rakestraw, Joanna Swain, Wenjun Zhao, Alexander T. Kozhich, Martin J. Corbett
  • Publication number: 20190246124
    Abstract: A data rate control method includes determining an adjustment value of a first encoding parameter for encoding a first strip based on a quota of the first strip included in a frame that has not been encoded and based on a quota of at least one already encoded strip included in the frame. At least one of the quota of the first strip and the quota of the at least one already encoded strip relates to a number of shares of bits used for encoding a strip. The data rate control method also includes determining the first encoding parameter based on the adjustment value.
    Type: Application
    Filed: April 11, 2019
    Publication date: August 8, 2019
    Inventors: Wenjun ZHAO, Wei CHEN, Xiaozhen ZHENG