Patents by Inventor Yeqing (Juliet) Zhang

Yeqing (Juliet) Zhang 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: 20240056138
    Abstract: A method includes identifying ACF information by: obtaining channel information including multiple channels of expected operation scenarios; and based on the channel information for each of the channels, determining MMSE channel estimation (CE) weights expressed in a form of ACFs and an SNR, and covariance matrices. The method includes clustering the MMSE CE weights into K clusters. A center ACF weight of each of the K clusters represents a codeword. The method includes determining a distance metric based on a cluster distance after a re-clustering. The method includes, in response to a determination that cluster distances before and after the clustering differ from each other by a non-negligibly, iteratively re-clustering the ACF information thereby updating the center ACF weights and cluster distances. The method includes generating the codebook to include an index k of each of the K clusters and the center ACF weight of each of the K clusters.
    Type: Application
    Filed: August 4, 2023
    Publication date: February 15, 2024
    Inventors: Yeqing Hu, Xiaowen Tian, Yang Li, Tiexing Wang, Jianzhong Zhang
  • Publication number: 20240048776
    Abstract: Disclosed is a method that includes receiving an image frame having a plurality of coded blocks, determining a prediction unit (PU) from the plurality of coded blocks, determining one or more motion compensation units arranged in an array within the PU, and applying a filter to one or more boundaries of the one or more motion compensation units. Also disclosed is a method that includes receiving a reference frame that includes a reference block, determining a timing for deblocking a current block, performing motion compensation on the reference frame to obtain a predicted frame that includes a predicted block, performing reconstruction on the predicted frame to obtain a reconstructed frame that includes a reconstructed PU, and applying, at the timing for deblocking the current block, a deblocking filter based on one or more parameters to the reference block, the predicted block, or the reconstructed PU.
    Type: Application
    Filed: September 29, 2022
    Publication date: February 8, 2024
    Inventors: Yixin Du, Alexandros Tourapis, Alican Nalci, Guoxin Jin, Hilmi Enes Egilmez, Hsi-Jung Wu, Jun Xin, Yeqing Wu, Yunfei Zheng
  • Publication number: 20240048191
    Abstract: Calibration in distributed multiple input multiple output (MIMO) networks. A method performed by a first base station (BS) includes receiving a first uplink (UL) reference signal (RS) and determining, based on the first UL RS and a second UL RS, a first phase offset for transmission of a first downlink (DL) RS to a user equipment (UE). The second UL RS is associated with a second BS. The first phase offset of the first DL RS is relative to a second DL RS associated with the second BS. The method further includes transmitting the first DL RS with the first phase offset; receiving UE feedback associated with the first DL RS and the second DL RS; and determining, based on the first phase offset and the received feedback, for a DL data transmission to the UE, a second phase offset between transmissions of the first BS and the second BS.
    Type: Application
    Filed: June 6, 2023
    Publication date: February 8, 2024
    Inventors: Jianzhong Zhang, Yang Li, Gilwon Lee, Yeqing Hu, Shadi Abu-Surra, Md. Saifur Rahman
  • Publication number: 20240040124
    Abstract: A flexible coefficient coding (FCC) approach is presented. In the first aspect, spatial sub-regions are defined over a transform unit (TU) or a prediction unit (PU). These sub-regions organize the coefficient samples residing inside a TU or a PU into variable coefficient groups (VCGs). Each VCG corresponds to a sub-region inside a larger TU or PU. The shape of VCGs or the boundaries between different VCGs may be irregular, determined based on the relative distance of coefficient samples with respect to each other. Alternatively, the VCG regions may be defined according to scan ordering within a TU. Each VCG can encode a 1) different number of symbols for a given syntax element, or a 2) different number of syntax elements within the same TU or PU. Whether to code more symbols or more syntax elements may depend on the type of arithmetic coding engine used in a particular coding specification. For multi-symbol arithmetic coding (MS-AC), a VCG may encode a different number of symbols for a syntax element.
    Type: Application
    Filed: July 25, 2023
    Publication date: February 1, 2024
    Inventors: Alican NALCI, Yunfei ZHENG, Hilmi Enes EGILMEZ, Yeqing WU, Yixin DU, Alexandros TOURAPIS, Jun XIN, Hsi-Jung WU, Arash VOSOUGHI, Dzung T. HOANG
  • Publication number: 20240040120
    Abstract: Video coders and decoders perform transform coding and decoding on blocks of video content according to an adaptively selected transform type. The transform types are organized into a hierarchy of transform sets where each transform set includes a respective number of transforms and each higher-level transform set includes the transforms of each lower-level transform set within the hierarchy. The video coders and video decoders may exchange signaling that establishes a transform set context from which a transform set that was selected for coding given block(s) may be identified. The video coders and video decoders may exchange signaling that establishes a transform decoding context from which a transform that was selected from the identified transform set to be used for decoding the transform unit. The block(s) may be coded and decoded by the selected transform.
    Type: Application
    Filed: July 25, 2023
    Publication date: February 1, 2024
    Inventors: Hilmi Enes EGILMEZ, Yunfei ZHENG, Alican NALCI, Yeqing WU, Yixin DU, Guoxin JIN, Alexandros TOURAPIS, Jun XIN, Hsi-Jung WU
  • Publication number: 20240040151
    Abstract: Techniques are described for express and implied signaling of transform mode selections in video coding. Information derived from coefficient samples in a given transform unit (TU) or prediction unit (PU) may constrain or modify signaling of certain syntax elements at the coding block (CB), TU, or PU levels. For instance, based on the spatial locations of decoded coefficients, the spatial patterns of coefficients, or the correlation with the coefficients in neighboring blocks, various syntax elements such as the transform type and related flags/indices or secondary transform modes/flags indices, a residual coding mode, intra and inter prediction modes, and scanning order may be disabled or constrained. In another case, if the coefficient samples match a desired spatial pattern or have other desired properties then a default transform type, a default secondary transform type, a default intra and inter prediction mode or other block level modes may be inferred at the decoder side.
    Type: Application
    Filed: May 4, 2023
    Publication date: February 1, 2024
    Inventors: Alican Nalci, Yunfei Zheng, Hilmi E. Egilmez, Yeqing WU, Yixin Du, Alexis Tourapis, Jun Xin, Hsi-Jung Wu
  • Publication number: 20240025412
    Abstract: A trajectory planning method and a related device are provided, to plan a sub-lane-level trajectory, so that an autonomous vehicle drives along the sub-lane-level trajectory, and driving stability and safety of the autonomous vehicle are improved by using the sub-lane-level trajectory. Target information is obtained, where the target information includes at least one of a driving status of a target vehicle and first road condition information.
    Type: Application
    Filed: October 5, 2023
    Publication date: January 25, 2024
    Inventors: Lei ZHANG, Yeqing ZHANG, Zhousu LI, Xia ZENG, Siyuan CHENG, Xinyu WANG
  • Publication number: 20230421446
    Abstract: A virtual device management system for creating and implementing virtual devices and associated methods are provided herein. The system presents to a user a list of devices available for combining to create the virtual device. When the system receives from the user a selection of two or more devices that the user wishes to combine to create the virtual device, the system presents to the user a list of available functions that can be performed by the virtual device based on the selected devices. The system then receives from the user a selection of one or more functions and configures the virtual device to perform the selected functions. The system can also be configured to present, via a user interface via a mobile application running on a user device, a plurality of virtual devices with predetermined functionalities that are created by detecting the various connected devices within an IoT network.
    Type: Application
    Filed: June 30, 2023
    Publication date: December 28, 2023
    Inventors: Yeqing Lou, Mark Tan, Yun Zhang, Dongsheng Song
  • Publication number: 20230412428
    Abstract: A method and device for self-tuning scales of variables for processing in fixed-point hardware. The device includes a sequence of fixed-point arithmetic circuits configured to receive at least one input signal and output at least one output signal. The circuits are preconfigured with control scales associated with each of the input and output signals. A first circuit in the sequence is configured to receive a first input signal having a dynamic true scale that is different from the control scale associated with the first input signal. Each of the circuits is further configured to determine, for each of the output signals, an adaptive scale from the control scale associated with the output signal based on the true scale of the first input signal and the control scale associated with the first input signal, and generate, from the input signal, the output signal having the associated adaptive scale.
    Type: Application
    Filed: May 1, 2023
    Publication date: December 21, 2023
    Inventors: Junmo Sung, Tiexing Wang, Yeqing Hu, Yang Li, Jianzhong Zhang
  • Patent number: 11833584
    Abstract: Based on 100 wt % of the alloy aluminum paste, the alloy aluminum paste includes the following components in percentages by weight: 35-56.5% of an aluminum-silicon alloy powder, 17.5-37.5% of an aluminum powder, 1-2% of a lead-free glass powder, 15-20% of an organic solvent, 3-5% of ethyl cellulose, 0.05-0.1% of a thixotropic agent and 0.5-1.5% of a dispersant. The alloy paste can be applied to a PERC solar cell having a passivation coating opening consisting of 0.5-1% of the area of the solar cell. When the alloy aluminum paste is applied to a PERC solar cell having a low opening rate, particularly a rear electrode having a passivation coating opening consisting of 0.5-1% of the area of the solar cell.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: December 5, 2023
    Assignee: NANTONG T-SUN NEW ENERGY CO., LTD.
    Inventors: Peng Zhu, Guizhong Yang, Xinjian Chen, Haibo Xu, Yeqing Wang
  • Publication number: 20230388158
    Abstract: A method includes determining estimated features comprising second order statistics based on at least one received signal. The method also includes classifying, using a machine learning network, each channel of the at least one received signal into a channel profile based on the estimated features. The method also includes obtaining multiple minimum mean square error (MMSE) channel estimation weights from a database based on the estimated features, the database storing (i) representative MMSE estimation weights and (ii) channel cluster representatives indexed by the estimated features. The method also includes applying a respective MMSE channel estimation weight for each channel.
    Type: Application
    Filed: March 13, 2023
    Publication date: November 30, 2023
    Inventors: Yeqing Hu, Yang Li, Tiexing Wang, Junmo Sung, Jianzhong Zhang
  • Patent number: 11784277
    Abstract: A method for preparing a P-type crystalline silicon rear electrode, comprising: printing an all-aluminum paste on a P-type crystalline silicon rear passivation layer, then printing a linear interlayer-glass paste on the all-aluminum paste, and finally overprinting rear silver electrodes on the linear middle layer-glass paste. In a solar cell prepared using the method, good contact with silver and aluminum is kept without causing damage to the passivation layer and compromising the conductivity. In the present invention, a complete all-aluminum back surface field can be formed, leading to an improved field passivation property of an electrode region and reduced carrier recombination.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: October 10, 2023
    Assignee: NANTONG T-SUN NEW ENERGY CO., LTD.
    Inventors: Peng Zhu, Guizhong Yang, Yanmei Chen, Yeqing Wang
  • Publication number: 20230300341
    Abstract: Techniques are disclosed for generating virtual reference frames that may be used for prediction of input video frames. The virtual reference frames may be derived from already-coded reference frames and thereby incur reduced signaling overhead. Moreover, signaling of virtual reference frames may be avoided until an encoder selects the virtual reference frame as a prediction reference for a current frame. In this manner, the techniques proposed herein contribute to improved coding efficiencies.
    Type: Application
    Filed: January 20, 2023
    Publication date: September 21, 2023
    Inventors: Yeqing WU, Yunfei ZHENG, Alexandros TOURAPIS, Alican NALCI, Yixin DU, Hilmi Enes EGILMEZ, Albert E. KEINATH, Jun XIN, Hsi-Jung WU
  • Patent number: 11765399
    Abstract: An apparatus for video decoding includes processing circuitry. The processing circuitry decodes prediction information of a current block from a coded video bitstream. The prediction information is indicative of an intra block copy mode, the current block is one of a plurality of coding blocks in a coding tree block (CTB) with a right to left coding order being allowed within the current CTB. The processing circuitry determines a block vector that points to a reference block in a same picture as the current block. Then, the processing circuitry ensures the reference block being buffered in a reference sample memory based on at least a determination that a sample that is right of a leftmost sample of the reference block is buffered in the reference sample memory. Further, the processing circuitry reconstructs at least a sample of the current block based on reconstructed samples of the reference block.
    Type: Grant
    Filed: January 5, 2022
    Date of Patent: September 19, 2023
    Assignee: TENCENT AMERICA LLC
    Inventors: Yeqing Wu, Xiaozhong Xu, Xiang Li, Shan Liu
  • Patent number: 11729061
    Abstract: A virtual device management system for creating and implementing virtual devices and associated methods are provided herein. The system presents to a user a list of devices available for combining to create the virtual device. When the system receives from the user a selection of two or more devices that the user wishes to combine to create the virtual device, the system presents to the user a list of available functions that can be performed by the virtual device based on the selected devices. The system then receives from the user a selection of one or more functions and configures the virtual device to perform the selected functions. The system can also be configured to present, via a user interface via a mobile application running on a user device, a plurality of virtual devices with predetermined functionalities that are created by detecting the various connected devices within an IoT network.
    Type: Grant
    Filed: May 27, 2022
    Date of Patent: August 15, 2023
    Assignee: Wyze Labs, Inc.
    Inventors: Yeqing Lou, Mark Tan, Yun Zhang, Dongsheng Song
  • Patent number: 11683504
    Abstract: An apparatus includes processing circuitry, which determines a block vector that points to a reference block in a same picture as a current block in an intra block copy mode. The current block is one of a plurality of coding blocks in a coding tree block (CTB) with a right to left coding order being allowed within the CTB. The processing circuitry checks that two corner samples of the reference block have been reconstructed based on first outputs from a derivation process for block availability. The processing circuitry checks that a non corner sample of the reference block has been reconstructed based on a second output from the derivation process. The processing circuitry encodes the current block based on reconstructed samples of the reference block after a determination that the two corner samples of the reference block and the non corner sample of the reference block have been reconstructed.
    Type: Grant
    Filed: May 11, 2022
    Date of Patent: June 20, 2023
    Assignee: Tencent America LLC
    Inventors: Yeqing Wu, Xiaozhong Xu, Xiang Li, Shan Liu
  • Patent number: 11683712
    Abstract: Methods and apparatuses for hybrid hierarchical parameter tracking for CSI estimation in a wireless communication system. The methods and apparatuses include receiving uplink signals comprising a channel state information (CSI) report or a sounding reference signal (SRS); performing a channel parameter tracking operation to determine channel parameters that change less than a first threshold amount based on the received uplink signals; performing a channel parameter prediction operation to determine the channel parameters that change greater than a second threshold amount on an output of the channel parameter tracking operation; and performing a channel prediction operation for downlink channels based on an output of the channel parameter tracking operation and the channel parameter prediction operation.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: June 20, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Rui Wang, Yang Li, Junmo Sung, Yeqing Hu, Jianzhong Zhang
  • Publication number: 20230188738
    Abstract: In an example method, a decoder obtains a data stream representing video content. The video content is partitioned into one or more logical units, and each of the logical units is partitioned into one or more respective logical sub-units. The decoder determines that the data stream includes first data indicating that a first logical unit has been encoded according to a flexible skip coding scheme. In response, the decoder determines a first set of decoding parameters based on the first data, and decodes each of the logical sub-units of the first logical unit according to the first set of decoding parameters.
    Type: Application
    Filed: December 6, 2022
    Publication date: June 15, 2023
    Inventors: Alican Nalci, Alexandros Tourapis, Hilmi Enes Egilmez, Hsi-Jung Wu, Jun Xin, Yeqing Wu, Yixin Du, Yunfei Zheng
  • Publication number: 20230142771
    Abstract: A filtering system for video coders and decoders is disclosed that includes a feature detector having an input for samples reconstructed from coded video data representing a color component of source video, and having an output for data identifying a feature recognized therefrom, an offset calculator having an input for the feature identification data from the feature detector and having an output for a filter offset, and a filter having an input for the filter offset from the offset calculator and an input for the reconstructed samples, and having an output for filtered samples. The filtering system is expected to improve operations of video coder/decoder filtering systems by selecting filtering offsets from analysis of recovered video data in a common color plane as the samples that will be filtered.
    Type: Application
    Filed: November 2, 2022
    Publication date: May 11, 2023
    Inventors: Yixin DU, Alexandros TOURAPIS, Yunfei ZHENG, Jun XIN, Mukta S. Gore, Alican NALCI, Mei T. GUO, Yeqing WU, Hsi-Jung WU
  • Publication number: 20230143147
    Abstract: A cross-component based filtering system is disclosed for video coders and decoders. The filtering system may include a filter having an input for a filter offset and an input for samples reconstructed from coded video data representing a native component of source video on which the filter operates. The offset may be generated at least in part from a sample classifier that classifies samples reconstructed from coded video data representing a color component of the source video orthogonal to the native component according to sample intensity.
    Type: Application
    Filed: November 2, 2022
    Publication date: May 11, 2023
    Inventors: Yixin DU, Alexandros TOURAPIS, Yunfei ZHENG, Jun XIN, Alican NALCI, Mei T. GUO, Yeqing WU, Hsi-Jung WU