Patents by Inventor Chen Xiong

Chen Xiong 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: 10863188
    Abstract: A method for non-uniform mapping for quantization matrix coefficients between different sizes of quantization matrices in image/video coding includes obtaining a first quantization matrix and identifying a second quantization matrix to be formed therefrom. The second quantization matrix is a factor of two larger than the first quantization matrix. The second quantization matrix is populated with values from the first matrix through non-uniform mapping of the first quantization matrix. Non-uniform mapping to populate the second quantization matrix includes directly mapping values of all or a portion of the first quantization matrix into a most upper left portion of the second quantization matrix and mapping up-sampling values of the first quantization matrix into a remaining portion of the second quantization matrix.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: December 8, 2020
    Assignee: Futurewei Technologies, Inc.
    Inventors: Jianhua Zheng, Chen-Xiong Zhang
  • Patent number: 10860944
    Abstract: A phase shifter, a quantum logic gate apparatus, an optical quantum computing apparatus, and a phase shift method, where the phase shifter includes an optical resonant cavity and a quantum point, where a resonance frequency of the optical resonant cavity is ?c, the quantum point is located in the optical resonant cavity, and a transition frequency of the quantum point is ?x, the quantum point and the optical resonant cavity are coupled to form a coupled system, and a transition energy difference of the coupled system is determined by ?c, ?x, and a coupling strength between the quantum point and the optical resonant cavity (g), and ?x is set.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: December 8, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Wen Zhang, Chen-Xiong Zhang
  • Publication number: 20200289849
    Abstract: This invention provides a method applied for the new dynamic arc radiotherapy treatment planning to calculate an optimal arc angle. With this invention, an operator without rich experience is able to reach the expected low dose in lungs easily and quickly. This invention can not only estimate the distribution of low radiation dose in lungs but also reduce the shortcomings like consumption of time and inaccuracy caused by manual trial and error.
    Type: Application
    Filed: March 13, 2020
    Publication date: September 17, 2020
    Inventors: Tung-Hsin WU, Pei-Wei SHUENG, Chen-Xiong HSU, Jing-Yi SUN, Kuan-Heng LIN
  • Patent number: 10764577
    Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for performing intra coding predictions. An intra-coding process applied to pixels in a frame of media is determined. The intra-coding process is determined whether to corresponding to at least one of most probable modes. In response to determining the intra-coding process does not correspond to the at least one of the most probable modes, four angular prediction modes are extracted from a list of prediction modes. A set of candidates based on the four angular prediction modes are determined. A pre-defined order of the set of candidates is determined, wherein each candidate mode of the set of candidate modes is included in a ranked order and signaled with a particular fixed length coding, and wherein a length of the particular fixed length coding increases based on the pre-defined order of the set of candidate modes.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: September 1, 2020
    Assignees: Futurewei Technologies, Inc., Santa Clara University
    Inventors: Minqiang Jiang, Taru Kanchan, Jianhua Zheng, Nam Ling, Chen-Xiong Zhang
  • Publication number: 20200204830
    Abstract: An apparatus including a memory operably coupled to a processor. The processor is configured to determine whether to use an intra smoothing filter for a rectangular prediction unit (PU), wherein a width of the rectangular PU is different from a height of the rectangular PU.
    Type: Application
    Filed: March 2, 2020
    Publication date: June 25, 2020
    Inventors: Guichun Li, Lingzhi Liu, Changcai Lai, Nam Ling, Jianhua Zheng, Chen-Xiong Zhang
  • Patent number: 10692835
    Abstract: A method for forming a ball bond for an integrated circuit formed on a semiconductor die includes forming a ball at a first send of a conductive wire inserted in a capillary tool and lowering the capillary tool toward a pad on the semiconductor die positioned on a support surface. The method further includes moving, using a motor, the support surface relative to the capillary tool to thereby bond the ball, without using ultrasound, to the pad and then raising the capillary tool.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: June 23, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Han Zhong, Zi Qi Wang, Chen Xiong, Yong Qiang Tang, Xi Lin Li, Xiao Lin Kang
  • Patent number: 10645422
    Abstract: An apparatus including a memory operably coupled to a processor. The processor is configured to select an intra smoothing filter for a rectangular prediction unit (PU) based on a lookup table (LUT) used for square PUs, wherein a width of the rectangular PU is different from a height of the rectangular PU.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: May 5, 2020
    Assignee: Futurewei Technologies, Inc.
    Inventors: Guichun Li, Lingzhi Liu, Changcai Lai, Nam Ling, Jianhua Zheng, Chen-Xiong Zhang
  • Publication number: 20200137385
    Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for performing intra coding predictions. An intra-coding process applied to pixels in a frame of media is determined. The intra-coding process is determined whether to corresponding to at least one of most probable modes. In response to determining the intra-coding process does not correspond to the at least one of the most probable modes, four angular prediction modes are extracted from a list of prediction modes. A set of candidates based on the four angular prediction modes are determined. A pre-defined order of the set of candidates is determined, wherein each candidate mode of the set of candidate modes is included in a ranked order and signaled with a particular fixed length coding, and wherein a length of the particular fixed length coding increases based on the pre-defined order of the set of candidate modes.
    Type: Application
    Filed: October 25, 2019
    Publication date: April 30, 2020
    Inventors: Minqiang JIANG, Taru KANCHAN, Jianhua ZHENG, Nam LING, Chen-Xiong ZHANG
  • Patent number: 10600881
    Abstract: The present disclosure relates to a tunneling field-effect transistor and a fabrication method. One example transistor includes a semiconductor substrate, a semiconductor nanosheet, a source region and a drain region, a dielectric layer, and a gate metal layer. The semiconductor nanosheet is vertically disposed on the semiconductor substrate. The source region and the drain region are connected using a channel. The drain region, the channel, and the source region are disposed on the semiconductor nanosheet in turn. The drain region is in contact with the semiconductor substrate. The source region is located at an end, of the semiconductor nanosheet, far away from the semiconductor substrate. The dielectric layer comprises at least a gate dielectric layer, is disposed on a surface of the semiconductor nanosheet, and surrounds the channel. The gate metal layer is disposed on a surface of the gate dielectric layer and surrounds the gate dielectric layer.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: March 24, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xichao Yang, Chen-Xiong Zhang
  • Patent number: 10600917
    Abstract: A field effect transistor and a manufacturing method thereof are provided. The field effect transistor includes two top gate structures (1031C and 1031D) and two bottom gate structures (1032A and 1032B). The top gate structures (1031C and 1031D) and the bottom gate structures (1032A and 1032B) are opposite to each other in pair. This increases a quantity of control-voltage-induced carriers in the field effect transistor, and therefore increases an output current of the field effect transistor, improves a power gain limit frequency in high-frequency use, and makes an electric field between the top gate structures (1031C and 1031D) and the bottom gate structures (1032A and 1032B) more adequately cover a channel layer (106) between source structures (1041 and 1042) and a drain (105), thereby reducing a parasitic effect in a high frequency, and further improving a frequency characteristic of the field effect transistor.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: March 24, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xudong Qin, Huilong Xu, Chen-Xiong Zhang
  • Patent number: 10587900
    Abstract: System and method embodiments for image coding are disclosed. In an embodiment, a method in a data processing system for image encoding includes determining a sparsity constraint according to a dimension of an input image signal. The method also includes iteratively determining a plurality of approximations to the input image signal. Each iteration provides an approximation of the input image signal. Each approximation includes a set of dictionary element indices and coefficients. The dictionary is an over-complete dictionary. Iterations of the determining step are terminated when a number of iterations is equal to the sparsity constraint. The method also includes selecting one of the plurality of approximations according to a minimum rate-distortion cost. The method also includes determining an encoded image signal according to non-zero coefficients and corresponding indices for each non-zero coefficient in the selected approximation.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: March 10, 2020
    Assignees: FUTUREWEI TECHNOLOGIES, INC., Santa Clara University
    Inventors: Minqiang Jiang, Jianhua Zheng, Madhusudan Kalluri, Nam Ling, Chen-Xiong Zhang
  • Publication number: 20200068645
    Abstract: A wireless communications method, apparatus, and system including a terminal is provided. The terminal sets up a connection to a first base station, and stays in always connected mode. When the terminal moves in a dense network, handovers of the first base station can be reduced. Further, when the terminal moves in the dense network, frequent signaling interaction is reduced, paging load in the entire network is reduced, and an end-to-end delay in service setup and transmission is reduced.
    Type: Application
    Filed: November 4, 2019
    Publication date: February 27, 2020
    Inventors: Junren CHANG, Yuchun WU, Shulan FENG, Chen-Xiong ZHANG
  • Patent number: 10554967
    Abstract: An apparatus comprises a receiver configured to receive video views comprising a reference view and a current view, wherein the reference view comprises a reference block and the current view comprises a current block, and a processor coupled to the receiver and configured to determine neighboring reference pixels associated with the reference block, determine neighboring current pixels associated with the current block, determine a first positional pairing between the neighboring reference pixels and the neighboring current pixels, determine a second positional pairing between the neighboring reference pixels and the neighboring current pixels, and determine an optimal pairing from between the first positional pairing and the second positional pairing.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: February 4, 2020
    Inventors: Zhouye Gu, Jianhua Zheng, Nam Ling, Chen-Xiong Zhang
  • Patent number: 10523430
    Abstract: An information processing method, includes calculating, using a first station, an estimated ratio of a quantity of pulses affected by a photon-number splitting (PNS) attack including a multi-photon in the pulses to a total quantity of the pulses, performing, using the first station, error correction processing on key information based on the estimated ratio to obtain a shared key of the first station and a second station when the estimated ratio is less than a preset threshold. Hence, a degree to which the photon is affected by the PNS attack can be estimated in order to perform error correction on the key information, thereby improving security of a key distribution.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: December 31, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Wei Geng, Chen-Xiong Zhang
  • Publication number: 20190392871
    Abstract: A voltage regulation circuit includes a first comparison and control unit and a second comparison and control unit. The first comparison and control unit is connected to a first switch unit, determine a first bias voltage based on a first output voltage, a first reference voltage, and a second reference voltage, and control a value of an equivalent resistance of the first switch unit using the first bias voltage. The second comparison and control unit is connected to a third switch unit and the second switch unit, determine a second bias voltage based on the first output voltage, a second output voltage, and a third reference voltage, and control values of equivalent resistances of the third switch unit and the second switch unit using the second bias voltage.
    Type: Application
    Filed: September 4, 2019
    Publication date: December 26, 2019
    Inventors: Yangyang Tang, Enyi Yao, Chen-Xiong Zhang
  • Publication number: 20190378814
    Abstract: A method for forming a ball bond for an integrated circuit formed on a semiconductor die includes forming a ball at a first send of a conductive wire inserted in a capillary tool and lowering the capillary tool toward a pad on the semiconductor die positioned on a support surface. The method further includes moving, using a motor, the support surface relative to the capillary tool to thereby bond the ball, without using ultrasound, to the pad and then raising the capillary tool.
    Type: Application
    Filed: October 25, 2018
    Publication date: December 12, 2019
    Inventors: Han Zhong, Zi Qi Wang, Chen Xiong, Yong Qiang Tang, Xi Lin Li, Xiao Lin Kang
  • Patent number: 10483381
    Abstract: A semiconductor device and a method for fabricating a semiconductor device are disclosed. The semiconductor device includes a tunnel field-effect transistor and a planar device. The tunnel field-effect transistor includes a first substrate and a first electrical element, and the first electrical element is formed on one side of the first substrate; the planar device includes a second substrate and a second electrical element, the second substrate and the first substrate are an integrated structure and form a main substrate, the second electrical element is formed on one side of the second substrate, and the second electrical element and the first electrical element are disposed on a same side of the main substrate; and the planar device includes any one of a metal oxide semiconductor transistor, a capacitor, and a resistor.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: November 19, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jing Zhao, Chen-Xiong Zhang
  • Patent number: 10477611
    Abstract: Embodiments of the present invention provide a wireless communications method, apparatus, and system. A terminal is provided. The terminal sets up a connection to a first base station, and stays in always connected mode. Therefore, when the terminal moves in a dense network, handovers of the first base station can be reduced. Further, when the terminal moves in the dense network, frequent signaling interaction is reduced, paging load in the entire network is reduced, and an end-to-end delay in service setup and transmission is reduced.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: November 12, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Junren Chang, Yuchun Wu, Shulan Feng, Chen-Xiong Zhang
  • Patent number: 10446672
    Abstract: A tunnel field-effect transistor (TFET) is provided. In the TFET, a channel region (202) connects a source region (201) and a drain region (203); a pocket layer (204) and a gate oxide layer (205) are successively produced between the source region and a gate region (206); a metal layer (208) is produced in a first area in the source region, the first area is located on a side on which the source region is in contact with the pocket layer, and the pocket layer covers at least a part of the metal layer; and the pocket layer and a second area in the source region form a first tunnel junction of the TFET, and the pocket layer and the metal layer form a second tunnel junction of the TFET.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: October 15, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xichao Yang, Chen-Xiong Zhang
  • Publication number: 20190273427
    Abstract: A voltage regulation circuit includes an obtainer that is configured to obtain load information of a corresponding load and output the load information to a corresponding controller. The corresponding controller generates a switch control signal based on the load information and outputs the switch controller to at least one switch. The at least one switch regulates, based on the accurate switch control signal, a voltage input to the corresponding load.
    Type: Application
    Filed: May 20, 2019
    Publication date: September 5, 2019
    Inventors: Yangyang Tang, Jian Zhang, Hu Liu, Cong Yao, Xinru Wang, Chen-Xiong Zhang