Patents by Inventor Zhijie ZHAO

Zhijie 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: 11977111
    Abstract: A pull out-assisting linkage device for load board of semiconductor automatic test equipment. One end of the handle is rotatably connected to the test equipment by a rotating member. The middle of the handle is bolted to the linkage. The two rotating plates are fixedly connected to the linkage and are located at the two ends of the linkage. Each rotating plate is rotatably connected to the test equipment. Both the first pull out-assisting rod and the second pull out-assisting rod are fixedly connected to each rotating plate by a universal connecting rod. The first pull out-assisting rod and the second pull out-assisting rod are slidingly connected to the test equipment. The first pull out-assisting rod has a first pull out-assisting slot in the side wall, and the second pull out-assisting rod has a second pull out-assisting slot in the side wall, with the first pull out-assisting slot and the second pull out-assisting slot set in reverse.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: May 7, 2024
    Inventors: Zhijie Bao, Kunling Zhao
  • Patent number: 11968363
    Abstract: The present disclosure provides apparatuses and methods for splitting an image into coding units. An image is divided into coding tree units (CTUs) which are hierarchically partitioned. Hierarchical partitioning includes multi-type partitioning such as binary tree or quad tree splitting. For CTUs completely within the image and CTUs on the boundary, respective multi-type partition depths are chosen. The present disclosure provides for multi-type partitioning flexibility in a boundary portion of the image.
    Type: Grant
    Filed: February 28, 2022
    Date of Patent: April 23, 2024
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Han Gao, Zhijie Zhao, Semih Esenlik, Anand Meher Kotra, Jianle Chen
  • Publication number: 20240122135
    Abstract: A method and system for generating a variable rate irrigation (VRI) prescription map for a large sprinkler irrigation system is provided. The method includes: determining a minimum length of a VRI management zone along a truss direction of the sprinkler irrigation system; determining a minimum angle of the VRI management zone along a travel direction of the sprinkler irrigation system; dividing the VRI management zone to generate a VRI management zoning map; determining, according to a basic irrigation amount of VRI management and a spatial distribution map of crop water deficit or a spatial distribution map of soil water holding capacity (SWHC), an irrigation quota of each management sub-zone; and generating, according to a distribution map of irrigation quotas of all management sub-zones in combination with a travel speed of the sprinkler irrigation system and a duty cycle of a solenoid valve, the VRI prescription map.
    Type: Application
    Filed: February 10, 2023
    Publication date: April 18, 2024
    Applicant: China Institute of Water Resources and Hydropower Research
    Inventors: Weixia ZHAO, Baozhong ZHANG, Zhijie SHAN, Jiusheng LI, Minne ZHANG, Changxin ZHU, Yanfeng LI
  • Patent number: 11962773
    Abstract: A method of coding implemented by a decoding device, comprising obtaining a bitstream; obtaining a value of an indicator for a current block according to the bitstream; obtaining a value of a first parameter for the current block and a value of a second parameter for the current block, according to the value of the indicator and a predefined lookup table; obtaining a value of a sample distance for a sample which is located in the current block, according to the value of the first parameter and the value of the second parameter; obtaining a prediction value for the sample, according to the value of the sample distance for the sample.
    Type: Grant
    Filed: December 6, 2022
    Date of Patent: April 16, 2024
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Semih Esenlik, Max Blaeser, Zhijie Zhao, Han Gao, Anand Meher Kotra, Biao Wang, Elena Alexandrovna Alshina
  • Publication number: 20240107077
    Abstract: An image processing device for use in an image encoder and/or an image decoder, for deblocking a block edge between a first block and a second block of an image encoded with a block code, is provided. The image processing device comprises a filter for filtering the block edge, configured to, for at least some of the pixels to be filtered, within a deblocking range from the block edge, the deblocking range being perpendicular to the block edge, determine a filtered pixel value from an original pixel value of the pixel and at least one further pixel value, determine a clipping value of the pixel, dependent upon a distance of the pixel from the block edge, and clip the filtered pixel value, using the clipping value resulting in a deblocked pixel value.
    Type: Application
    Filed: September 28, 2023
    Publication date: March 28, 2024
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Anand Meher Kotra, Semih Esenlik, Biao Wang, Han Gao, Zhijie Zhao, Jianle Chen
  • Publication number: 20240098294
    Abstract: The present disclosure relates to motion vector refinement. As a first step, an initial motion vector and a template for the block are obtained. Then, the refinement of the initial motion vector is determined by template matching with said template in a search space. The search space is located on a position given by the initial motion vector and includes one or more fractional sample positions, wherein each of the fractional sample positions belonging to the search space is obtained by interpolation filtering with a filter of a predefined tap-size assessing integer samples only within a window, said window being formed by integer samples accessible for the template matching in said search space.
    Type: Application
    Filed: September 21, 2023
    Publication date: March 21, 2024
    Inventors: Semih Esenlik, Anand Meher Kotra, Zhijie Zhao, Han Gao
  • Publication number: 20240082966
    Abstract: A cross-coupling control method for moving beam of gantry machine tool is disclosed, which relates to the technical field of CNC machine tool control. The cross-coupling control method includes: Step 1: establishing a crossbeam dynamics model considering a ram on the crossbeam, and at the same time simplifying the model for an observer design; step 2: realizing a PID control parameter adjustment of motors at both ends in accordance with a method of parameter tuning of a unilateral servo control system; using a servo system with the same control parameters to jointly drive the crossbeam up and down, realizing the synchronous control and realizing PID control parameter tuning for both end motors. The disclosure not only reduces the synchronization error caused by the torsion of the crossbeam, but also solves the synchronization error caused by the asymmetric load on both sides, and improves the system robustness and stability.
    Type: Application
    Filed: November 14, 2023
    Publication date: March 14, 2024
    Inventors: Chuanhai Chen, Zhifeng Liu, Jinyan Guo, Tongtong Jin, Xinyuan He, Shuo Zhao, Baobao Qi, Chunshi Liu, Zhaojun Yang, Zhijie Li, Chunlei Hua, Liang Zhang, Haoming Yan
  • Patent number: 11930171
    Abstract: The present disclosure provides an encoding apparatus and a decoding apparatus, as well as an encoding method and a decoding method. In particular, the present disclosure relates to block partitioning and signaling the partitioning parameters in a bitstream. An override flag in a slice header indicates whether or not a block is to be partitioned according to a first partition constraint information. The override flag is included in the bitstream and the block is partitioned accordingly.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: March 12, 2024
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Han Gao, Semih Esenlik, Jianle Chen, Anand Meher Kotra, Biao Wang, Zhijie Zhao
  • Patent number: 11909978
    Abstract: A deblocking filter of an image processing device is provided. The deblocking filter is used in an image coding process, for deblocking a block edge between a first coding block and a second coding block of an image. The first block has SA samples perpendicular to the block edge by N samples parallel to the block edge, and the second block has SB samples perpendicular to the block edge by N samples parallel to the block edge. No more than IA samples of the first coding block are used as first filter input values, and no more than IB samples of the second coding block are used as second filter input values. No more than MA samples of the first coding block are modified as first filter output values, and no more than MB samples of the second coding block are modified as second filter output values.
    Type: Grant
    Filed: January 27, 2022
    Date of Patent: February 20, 2024
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Anand Meher Kotra, Semih Esenlik, Zhijie Zhao, Han Gao
  • Patent number: 11910027
    Abstract: The present disclosure relates generally to video coding and picture partitioning methods. In particular, the disclosure is concerned with relations between partition constraint elements, by setting partitioning rules for different picture partitioning methods. The disclosure provides devices and corresponding methods for generating or processing a bitstream including encoded pictures, particularly for setting and including partition constraint element into the bitstream. One of the devices is configured to determine a minimum luma size of a leaf block resulting from quadtree splitting (MinQtSizeY), determine a maximum luma size of a coding block where partitioning using a binary tree splitting is allowed (MaxBtSizeY) based on the MinQtSizeY, and include information for the determined MinQtSizeY into the bitstream.
    Type: Grant
    Filed: September 28, 2022
    Date of Patent: February 20, 2024
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Han Gao, Semih Esenlik, Jianle Chen, Anand Meher Kotra, Biao Wang, Zhijie Zhao
  • Publication number: 20240031571
    Abstract: A partitioning method comprises determining whether a current block of a picture is a boundary block and whether the size of the current block is larger than a minimum allowed quadtree leaf node size; and if the current block is the boundary block and the size of the current block is not larger than the minimum allowed quadtree leaf node size (MinQTSize), applying forced binary tree (BT) partitioning to the current block. A method comprises making a determination that a current block of a picture is a boundary block and that a size of the current block is less than or equal to a minimum allowed quadtree (QT) leaf node size (MinQTSize); and applying, in response to the determination, forced binary tree (BT) partitioning to the current block.
    Type: Application
    Filed: August 4, 2023
    Publication date: January 25, 2024
    Inventors: Han Gao, Jianle Chen, Semih Esenlik, Zhijie Zhao, Anand Meher Kotra
  • Patent number: 11870986
    Abstract: A method of filtering a sample value of a picture is provided, with an integer t that is less than k and with an integer j in the range of 1 to m: generating, with an integer i in the range of 1 to k?t?1, a filtered sample value by applying a filter to the value of the sample p(i,j), wherein the filter is supported by a set of filter support samples, the set of filter support samples does not comprise any samples p(i?,j?) with row index i? greater than k?t?1, and/or generating, with an integer i in the range of k?t to k, a filtered sample value by applying a filter to the value of the sample p(i,j), the filter is supported by a set of filter support samples, wherein the set of filter support samples does not comprise any samples p(i?,j?) with row index i? less than k?t.
    Type: Grant
    Filed: November 29, 2022
    Date of Patent: January 9, 2024
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Anand Meher Kotra, Semih Esenlik, Jianle Chen, Han Gao, Biao Wang, Zhijie Zhao
  • Patent number: 11838520
    Abstract: A device for encoding and a device for decoding a picture, respectively, and corresponding methods relating to the field of picture coding are provided. The devices are respectively configured to partition the picture into one or more slices, each slice comprising one or more tiles, and one or more slices holding coded picture data. Further, the devices are configured to encode the one or more slices holding coded picture data, thereby improving coding and decoding of pictures with uncoded buffer space.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: December 5, 2023
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Johannes Sauer, Ye-Kui Wang, Zhijie Zhao, Semih Esenlik
  • Publication number: 20230388493
    Abstract: An apparatus and a method for filtering reconstructed images, in particular, video images, with adaptive multiplicative filters. The efficiency of the filtering operation is increased by restricting the allowable values of the filter coefficients to those that have only a limited number of “ones” in the binary representation.
    Type: Application
    Filed: August 15, 2023
    Publication date: November 30, 2023
    Inventors: Semih Esenlik, Anand Meher Kotra, Zhijie Zhao, Jianle Chen
  • Publication number: 20230370587
    Abstract: A coding apparatus configured to select an intra prediction mode for a current block, encode the selected intra prediction mode using truncated binary coding every time the selected intra prediction mode is a remaining mode, and encode the selected intra prediction mode using N bits when the selected intra prediction mode is included in a first portion from remaining modes and using N+1 bits when the selected intra prediction mode is included in a second portion of the remaining modes.
    Type: Application
    Filed: May 23, 2023
    Publication date: November 16, 2023
    Inventors: Anand Meher Kotra, Jianle Chen, Semih Esenlik, Zhijie Zhao, Han Gao, Biao Wang, Ivan Krasnov
  • Publication number: 20230353778
    Abstract: The present invention relates to the performance of motion vector refinement in a search space for multi-reference inter-prediction. Two or more reference pictures are selected, one of those used for motion vector refinement. Based on an initial estimate of a motion vector to the reference picture for motion vector refinement, a search space in this reference image is constructed. Using template matching, the first motion vector is refined. The second motion vector to another reference picture is calculated using its initial estimate, the initial estimate of the first motion vector and the refined first motion vector.
    Type: Application
    Filed: May 5, 2023
    Publication date: November 2, 2023
    Inventors: Semih Esenlik, Anand Meher Kotra, Zhijie Zhao
  • Patent number: 11805270
    Abstract: The present disclosure relates to motion vector refinement. As a first step, an initial motion vector and a template for the block are obtained. Then, the refinement of the initial motion vector is determined by template matching with said template in a search space. The search space is located on a position given by the initial motion vector and includes one or more fractional sample positions, wherein each of the fractional sample positions belonging to the search space is obtained by interpolation filtering with a filter of a predefined tap-size assessing integer samples only within a window, said window being formed by integer samples accessible for the template matching in said search space.
    Type: Grant
    Filed: January 23, 2023
    Date of Patent: October 31, 2023
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Semih Esenlik, Anand Meher Kotra, Zhijie Zhao, Han Gao
  • Patent number: 11800154
    Abstract: An image processing device for use in an image encoder and/or an image decoder, for deblocking a block edge between a first block and a second block of an image encoded with a block code, is provided. The image processing device comprises a filter for filtering the block edge, configured to, for at least some of the pixels to be filtered, within a deblocking range from the block edge, the deblocking range being perpendicular to the block edge, determine a filtered pixel value from an original pixel value of the pixel and at least one further pixel value, determine a clipping value of the pixel, dependent upon a distance of the pixel from the block edge, and clip the filtered pixel value, using the clipping value resulting in a deblocked pixel value.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: October 24, 2023
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Anand Meher Kotra, Semih Esenlik, Biao Wang, Han Gao, Zhijie Zhao, Jianle Chen
  • Publication number: 20230319322
    Abstract: A video processing method, comprising: initializing a HMVP list for a current CTU row when the current CTU is the beginning CTU of a current CTU row; and processing the current CTU row based on the HMVP list. By performing the method, the encoding efficiency and decoding efficiency are improved.
    Type: Application
    Filed: April 5, 2023
    Publication date: October 5, 2023
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Anand Meher KOTRA, Semih ESENLIK, Jianle CHEN, Biao WANG, Han GAO, Zhijie ZHAO
  • Patent number: D1024185
    Type: Grant
    Filed: October 18, 2022
    Date of Patent: April 23, 2024
    Assignee: Chongqing Pinsheng Technology Co., Ltd.
    Inventors: Bo Yu, Zhijie Zhao, Hua Li, Hewen Long