Patents by Inventor Kai Xu

Kai Xu 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: 20230032798
    Abstract: In an exemplary aspect, a method for visual media processing includes identifying a boundary at a vertical edge and/or a horizontal edge of two video blocks; calculating a boundary strength of a filter based on at least one of the two video blocks crossing a vertical edge or a horizontal edge is coded using a combined intra-inter prediction (CIIP) mode; deciding whether to turn on or off the filter; selecting a strength of the filter in case the filter is turned on; and performing, based on the selecting, a deblocking filter (DB) process to the video blocks.
    Type: Application
    Filed: September 28, 2022
    Publication date: February 2, 2023
    Inventors: Li Zhang, Weijia Zhu, Kai Zhang, Hongbin Liu, Jizheng Xu
  • Publication number: 20230035268
    Abstract: Methods for delivering treatment chemicals into a subterranean formation using treatment fluids that include nanoemulsions are provided. In some embodiments, the methods include providing a treatment fluid including an aqueous base fluid and a nanoemulsion including a water-soluble internal phase, a water-soluble external phase, and a surfactant, the nanoemulsion being formed by mechanically-induced shear rupturing; and introducing the treatment fluid into at least a portion of a subterranean formation at or above a pressure sufficient to create or enhance at least one fracture in the subterranean formation.
    Type: Application
    Filed: June 3, 2022
    Publication date: February 2, 2023
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Liang Xu, Kai He, Zhiwei Yue, Yang Peng
  • Patent number: 11569951
    Abstract: A wireless device receives one or more radio resource control messages comprising configuration parameters for a cell. The configuration parameters indicate a plurality of coreset groups corresponding to a plurality of transmission and reception points (TRPs). Each coreset in the plurality of coreset groups is associated with a transmission configuration indicator (TCI) state. A coreset group of the plurality of coreset groups is selected for a radio link monitoring of the cell. The selection is in response to the coreset group comprising a coreset with a pre-defined index value. One or more reference signals are monitored based on one or more TCI states of one or more coresets of the coreset group.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: January 31, 2023
    Assignee: Ofinno, LLC
    Inventors: Yunjung Yi, Esmael Dinan, Hua Zhou, Ali Cagatay Cirik, Youngwoo Kwak, Kyungmin Park, Kai Xu, Hyoungsuk Jeon
  • Patent number: 11570458
    Abstract: A method for video bitstream processing includes generating a prediction block for a first video block of a video related to a first component, where the prediction block is selectively generated according to a criterion by applying a two-step cross-component prediction mode (TSCPM), and performing a conversion between the first video block and a bitstream representation of the video using the prediction block, wherein a first field in the bitstream representation corresponds to the TSCPM.
    Type: Grant
    Filed: June 21, 2021
    Date of Patent: January 31, 2023
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Jizheng Xu, Yue Wang
  • Patent number: 11570464
    Abstract: A method for video processing is provided to include: making a determination that a coding mode is enabled for a conversion between a current video block of a video and a coded representation of the video; and performing the conversion using a palette prediction mode wherein at least a palette of representative sample values is used for the current video block, and wherein, in the coding mode, the current video block is constructed based on samples in a first domain and a second domain and/or chroma residue is scaled in a luma-dependent manner.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: January 31, 2023
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Jizheng Xu, Yue Wang
  • Patent number: 11570441
    Abstract: Devices, systems and methods for digital video coding, which includes matrix-based intra prediction methods for video coding, are described. In a representative aspect, a method for video processing includes performing a conversion between a current video block of a video and a bitstream representation of the current video block using a matrix based intra prediction (MIP) mode in which a prediction block of the current video block is determined by performing, on previously coded samples of the video, a boundary downsampling operation, followed by a matrix vector multiplication operation, and followed by an upsampling operation, where the upsampling operation is performed, in both a vertical direction and a horizontal direction in a fixed order, on samples obtained from the matrix vector multiplication operation.
    Type: Grant
    Filed: September 20, 2021
    Date of Patent: January 31, 2023
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Zhipin Deng, Kai Zhang, Li Zhang, Hongbin Liu, Jizheng Xu
  • Patent number: 11570477
    Abstract: Methods and systems are provided for implementing preprocessing operations and augmentation operations upon image datasets transformed to frequency domain representations, including decoding images of an image dataset to generate a frequency domain representation of the image dataset; performing a resizing operation based on resizing factors on the image dataset in a frequency domain representation; performing a reshaping operation based on reshaping factors on the image dataset in a frequency domain representation; and performing a cropping operation on the image dataset in a frequency domain representation. The methods and systems may further include performing an augmentation operation on the image dataset in a frequency domain representation. Methods and systems of the present disclosure may free learning models from computational overhead caused by transforming image datasets into frequency domain representations.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: January 31, 2023
    Assignee: Alibaba Group Holding Limited
    Inventors: Kai Xu, Fei Sun, Minghai Qin, Yen-kuang Chen
  • Publication number: 20230028423
    Abstract: A wireless device may increment a beam failure instance counter based on detecting a first beam failure instance associated with one or more first reference signals, RSs, for beam failure detection. The wireless device may receive a medium access control control element, MAC CE, activating one or more second RSs for beam failure detection. The wireless device may resetting the beam failure instance counter in response to receiving the MAC CE. increment the beam failure instance counter based on detecting a second beam failure instance associated with the one or more second RSs. The wireless device may initiate a beam failure recovery based on the beam failure instance counter being equal to or greater than a first value.
    Type: Application
    Filed: September 30, 2022
    Publication date: January 26, 2023
    Applicant: Ofinno, LLC
    Inventors: Kai Xu, Esmael Hejazi Dinan, Hua Zhou, Yunjung Yi, Jonghyun Park, Hyoungsuk Jeon
  • Publication number: 20230027555
    Abstract: Techniques for video processing, including video coding, video decoding and video transcoding are described. One example method includes performing a conversion between a video including a video picture including a video tile including one or more slices and a bitstream of the video according to a rule. The rule specifies that a second slice in a tile that includes a first slice in a picture has a height that is represented in a unit of coding tree units. The first slice has a first slice index, and the second slice has a second slice index that is determined based on the first slice index and a number of explicitly provided slice heights in the video tile. The height of the second slice is determined based on the first slice index and the second slice index.
    Type: Application
    Filed: August 22, 2022
    Publication date: January 26, 2023
    Inventors: Kai Zhang, Li Zhang, Ye-kui Wang, Zhipin Deng, Kui Fan, Jizheng Xu, Hongbin Liu
  • Publication number: 20230025335
    Abstract: An allergen reduction device may include a body, a dust cup removably coupled to the body, a plurality of agitators rotatably coupled to the body and disposed within respective agitator cavities defined in the body, a suction motor disposed within the body and configured to cause air to flow along corresponding cleaning airflow paths from the agitator cavities into the dust cup, a hot air outlet fluidly coupled to the suction motor, the suction motor being configured to urge the air through the hot air outlet along a heated exhaust airflow path, and a heater positioned within the heated exhaust airflow path between the suction motor and the hot air outlet, the heater being configured to heat the air that is urged from the hot air outlet.
    Type: Application
    Filed: October 6, 2022
    Publication date: January 26, 2023
    Inventors: Kai XU, Peter HUTCHINSON
  • Publication number: 20230028898
    Abstract: A frame rate adjustment method, apparatus and device, a computer-readable storage medium and a computer program product. The method includes: acquiring running data of a client during running in a foreground when the client in the terminal device supports dynamic frame rate switching; determining a running scenario of the client based on the running data; determining a target running frame rate of the client based on the running scenario; and performing, by the client, image outputting according to the target running frame rate, and triggering an operating system of the terminal device to adjust a refresh rate of a screen according to the target running frame rate.
    Type: Application
    Filed: September 28, 2022
    Publication date: January 26, 2023
    Applicant: Tencent Technology (Shenzhen) Company Limited
    Inventors: Shili XU, Kai HONG, Haiyang WU, Qitian ZHANG, Zhuan LIU, Jingjing CHEN
  • Patent number: 11564163
    Abstract: A wireless device receives one or more indications including: a wake-up indication indicating downlink control channel monitoring during a discontinuous reception (DRX) on duration of a DRX cycle; and a dormancy indication indicating a switching to a dormant bandwidth part of a cell. Based on the dormancy indication and the wake-up indication, during the DRX on duration, the wireless device: monitors a downlink control channel on the cell is stopped, while maintaining the cell activated; and transmits a channel state information report for the dormant bandwidth part.
    Type: Grant
    Filed: August 12, 2021
    Date of Patent: January 24, 2023
    Assignee: Ofinno, LLC
    Inventors: Hua Zhou, Esmael Hejazi Dinan, Ali Cagatay Cirik, Yunjung Yi, Youngwoo Kwak, Hyoungsuk Jeon, Kai Xu
  • Patent number: 11563972
    Abstract: Devices, systems, and methods for digital video coding, which includes constructing separate motion candidate lists for video coding, are described. An exemplary method for video processing includes constructing, for a first video block of a video, a first motion candidate list using a first motion candidate list construction method that excludes motion candidates that are only derived from temporal blocks, and performing a conversion between the first video block and a bitstream representation of the video including the first video block according to the constructed first motion candidate list.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: January 24, 2023
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Jizheng Xu, Yue Wang
  • Patent number: 11563973
    Abstract: Methods, devices and systems for intra-block coding based decoding or encoding of video while using block vector signaling and/or merge candidates are disclosed. An example method for video processing includes performing a conversion between a video region of a video and a bitstream representation of the video, wherein the bitstream representation selectively includes motion vector difference (MVD) related syntax elements for an intra block copy (IBC) advanced motion vector prediction (AMVP) mode based on a maximum number of a first type of IBC candidates used during the conversion of the video region, wherein, when an IBC mode is applied, samples of the video region are predicted from other samples in a video picture corresponding to the video region.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: January 24, 2023
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Jizheng Xu, Kai Zhang, Hongbin Liu
  • Publication number: 20230019256
    Abstract: A wireless device receives a medium access control control element (MAC CE) indicating activation of one or more secondary cells (SCells) of a plurality of SCells. A first downlink control channel of a first SCell of the one or more SCells is monitored. A downlink control information including a bitmap for power saving indication is received. Each bit of the bitmap corresponds to an SCell, of the plurality of SCells, in an ascending order of SCell indexes. A value of each bit indicates whether to monitor a downlink control channel on the corresponding SCell. Monitoring of the first downlink control channel is stopped, with the first SCell maintained as activated, in response to a bit, of the bitmap, corresponding to the first SCell and indicating not to monitor the first downlink control channel.
    Type: Application
    Filed: September 14, 2022
    Publication date: January 19, 2023
    Applicant: Ofinno, LLC
    Inventors: Hua Zhou, Esmael Hejazi Dinan, Ali Cagatay Cirik, Alireza Babaei, Hyoungsuk Jeon, Kyungmin Park, Kai Xu
  • Publication number: 20230014129
    Abstract: A method of visual media processing includes determining, for a conversion between a current video block of visual media data and a bitstream representation of the current video block, a buffer that stores reference samples for prediction in an intra block copy mode; for a sample spatially located at location of the current video block relative to an upper-left position of a coding tree unit including the current video block and having a block vector, computing a corresponding reference in the buffer at a reference location, wherein the reference location is determined using the block vector and the location; and upon determining that the reference location lies outside the buffer, re-computing the reference location based at least in part on a location of the current video block relative to the coding tree unit including the current video block.
    Type: Application
    Filed: August 26, 2022
    Publication date: January 19, 2023
    Inventors: Jizheng Xu, Li Zhang, Kai Zhang, Hongbin Liu, Yue Wang
  • Publication number: 20230019459
    Abstract: A method of visual media processing includes determining, for a conversion between a current video block of visual media data and a bitstream representation of the current video block, a buffer that stores reference samples for prediction in an intra block copy mode; for a sample spatially located at location of the current video block relative to an upper-left position of a coding tree unit including the current video block and having a block vector, computing a corresponding reference in the buffer at a reference location, wherein the reference location is determined using the block vector and the location; and upon determining that the reference location lies outside the buffer, re-computing the reference location based at least in part on a location of the current video block relative to the coding tree unit including the current video block.
    Type: Application
    Filed: August 30, 2021
    Publication date: January 19, 2023
    Inventors: Jizheng XU, Li ZHANG, Kai ZHANG, Hongbin LIU, Yue WANG
  • Publication number: 20230020655
    Abstract: A method of digital media processing includes performing a conversion between a media segment and a bitstream of the media segment. The conversion conforming to a format rule and an encryption rule. The format rule specifying that verification information, which includes an indication of an integrity of a portion of the media segment, is signaled in the bitstream.
    Type: Application
    Filed: September 12, 2022
    Publication date: January 19, 2023
    Inventors: Jizheng XU, Ye-kui WANG, Li ZHANG, Kai ZHANG
  • Publication number: 20230020259
    Abstract: Methods and apparatus for video processing are described. One example method includes determining, for a conversion between a video block of a video and a bitstream of the video, that the video block satisfies a condition. The video block is coded in the bitstream using an intra block copy mode. The method further includes performing the conversion based on the determining. Here, due to the video block satisfying the condition, a portion of an intra block copy buffer is reset during the conversion.
    Type: Application
    Filed: September 19, 2022
    Publication date: January 19, 2023
    Inventors: Jizheng Xu, Li Zhang, Kai Zhang, Hongbin Liu
  • Patent number: 11558644
    Abstract: Devices, systems and methods for digital video coding, which includes: determining whether a sample is located at sub-block transform boundaries in case that a sub-block transform is applied; applying deblocking filter process if it is determined that the sample is located at sub-block transform boundaries; and performing a conversion between the video and a bitstream representation of the video.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: January 17, 2023
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Jizheng Xu, Yue Wang