Patents by Inventor An Xu

An 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: 20210385793
    Abstract: Aspects of the disclosure relate to downlink (DL) transmissions using various powers and assigning frequency resources based on the powers. An example base station may transmit, to a first user equipment (UE), an indication of a first transmit (Tx) power for one or more first DL transmissions to a first group of a plurality of groups. The first group may include the first UE. The first Tx power may have a first power level different from a second power level of a second Tx power for one or more second DL transmissions to a second group of the plurality of groups. Then, the base station may transmit, to the first UE, a first DL transmission of the one or more first DL transmissions using the first Tx power. Other aspects, embodiments, and features are also claimed and described.
    Type: Application
    Filed: May 27, 2021
    Publication date: December 9, 2021
    Inventors: Ahmed Attia ABOTABL, Muhammad Sayed Khairy ABDELGHAFFAR, Shimman Arvind PATEL, Wanshi CHEN, Huilin XU, Hwan Joon KWON, Krishna Kiran MUKKAVILLI, Tingfang JI
  • Publication number: 20210384066
    Abstract: The present application relates to a method for preparing a trench isolation structure and a method for preparing a semiconductor device. The method for preparing a trench isolation structure comprises opening a trench on a substrate, and filling a first dielectric layer of a preset thickness at the bottom of the trench; forming a compensation film on the sidewalls of the trench above the first dielectric layer; filling a second dielectric layer into the trench to form the trench isolation structure, with the compensation film be completely consumed after filling the second dielectric layer.
    Type: Application
    Filed: August 19, 2021
    Publication date: December 9, 2021
    Applicant: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventors: ChenMing XU, BEONSEOK CHA, WenJing GUAN
  • Publication number: 20210385840
    Abstract: A wireless device may determine that a reference signal associated with a first control resource set (coreset) pool index overlaps in time with a downlink signal associated with a second coreset pool index. Based on the first coreset pool index and the second coreset pool index being the same, the wireless device may receive the reference signal with a transmission configuration indicator (TCI) state of the downlink signal.
    Type: Application
    Filed: August 18, 2021
    Publication date: December 9, 2021
    Applicant: Ofinno, LLC
    Inventors: Ali Cagatay Cirik, Esmael Hejazi Dinan, Kai Xu, Yunjung Yi, Hua Zhou
  • Publication number: 20210383686
    Abstract: A roadside computing (RSC) system associated with a roadway obtains, a position of a connected road user. The RSC system is configured to identify at least one road user based on sensor data from one or more roadside sensors, determine a position of the at least one road user identified based on the sensor data, track by the RSC system, the position of the road user traveling on the roadway, determine a predicted trajectory of the road user based on the tracked position of the road user and a trajectory prediction model, and transmit information related to the predicted trajectory to the computing device associated with the connected road user.
    Type: Application
    Filed: March 29, 2021
    Publication date: December 9, 2021
    Applicant: DENSO International America, Inc.
    Inventors: Yunfei XU, Ravi AKELLA, Haris VOLOS
  • Publication number: 20210384849
    Abstract: A driving circuit for driving a piezoelectric load, can include: a rechargeable power supply; a power stage circuit coupled between the rechargeable power supply and the piezoelectric load; where during a first operation interval of an operation period, the rechargeable power supply charges the piezoelectric load through the power stage circuit, such that a power supply voltage signal provided to the piezoelectric load in the first operation interval corresponds to a reference voltage in a first interval; and where during a second operation interval of the operation period, the piezoelectric load charges the rechargeable power supply through the power stage circuit, such that the power supply voltage signal in the second operation interval corresponds to the reference voltage in a second interval.
    Type: Application
    Filed: June 4, 2021
    Publication date: December 9, 2021
    Inventors: Zhiwei Xu, Chiqing Fang, Chen Zhao
  • Publication number: 20210385905
    Abstract: An entity establishment processing method and an apparatus are provided. The processing method includes: A terminal side device receives first indication information from a first network side device, where the first indication information is used to trigger reestablishment of a first PDCP entity of the terminal side device. When a first bearer corresponding to the first PDCP entity is not a radio bearer used to perform duplication transmission between the terminal side device and a core network side device, in a process in which the terminal side device reestablishes the first PDCP entity based on the first indication information, the terminal side device sets a parameter of the first PDCP entity to an initial value.
    Type: Application
    Filed: August 13, 2021
    Publication date: December 9, 2021
    Inventors: Xiaoying Xu, Hui Ni, Zhenzhen Cao, Qufang Huang
  • Publication number: 20210378567
    Abstract: A blood separation device that allows high quality plasma to be generated using a single power source. The device includes a housing with an inlet port adapted to receive the blood sample, a first chamber having a first chamber flow channel in fluid communication with the inlet port, a second chamber having a second chamber flow channel, a separation member disposed between the first chamber and the second chamber. In some embodiments, the blood separation device detects or tests for the presence of a substance, such as an antigen or an antibody.
    Type: Application
    Filed: June 7, 2021
    Publication date: December 9, 2021
    Applicant: BECTON DICKINSON AND COMPANY
    Inventors: Kristin Weidemaier, Alexander G. Lastovich, Qihua Xu, Richard Abbott
  • Publication number: 20210384876
    Abstract: Power amplifiers with adaptive bias for envelope tracking applications are provided herein. In certain embodiments, an envelope tracking system includes a power amplifier that amplifies a radio frequency (RF) signal and that receives power from a power amplifier supply voltage, and an envelope tracker that generates the power amplifier supply voltage based on an envelope of the RF signal. The power amplifier includes a field-effect transistor (FET) for amplifying the RF signal, and a current mirror including an input that receives a reference current and an output connected to the power amplifier supply voltage. An internal voltage of the current mirror is used to bias the gate of the FET to compensate the FET for changes in the power amplifier supply voltage arising from envelope tracking.
    Type: Application
    Filed: May 17, 2021
    Publication date: December 9, 2021
    Inventors: Aleksey A. Lyalin, Huiming Xu, Shayan Farahvash, Georgios Palaskas
  • Publication number: 20210378561
    Abstract: A method of calculating at least one physiological parameter using a reticulocyte production index (RPI) value can include: measuring a plurality of first glucose levels over a first time period; measuring a first glycated hemoglobin (HbA1c) level corresponding to an end of the first time period; measuring the RPI value; calculating a red blood cell elimination constant (kage) based on the RPI value; and calculating the at least one physiological parameter selected from the group consisting of: a red blood cell glycation rate constant (kgly), a red blood cell generation rate constant (kgen), and an apparent glycation constant (K), based on (1) the plurality of first glucose levels, (2) the first HbA1c level, and (3) the kage. Further, one or more related analyses (e.g., personalized-target glucose range, personalized-target average glucose, cHbA1c, and the like) can be estimated and/or adjusted based on the at least one physiological parameter.
    Type: Application
    Filed: October 25, 2019
    Publication date: December 9, 2021
    Applicant: Abbott Diabetes Care Inc.
    Inventor: Yongjin Xu
  • Publication number: 20210385483
    Abstract: Devices, systems and methods for digital video coding, which includes deriving RMVF-based motion vector information, are described. An exemplary method for video processing includes deriving at least one motion model for a current video block, based on motion information of at least one non-adjacent spatial neighboring block or at least one temporal neighboring block of the current video block; deriving motion information for the current video block or at least one sub-block of the current video block based on the at least one motion model; and performing a conversion for the current video block based on the derived motion information.
    Type: Application
    Filed: August 18, 2021
    Publication date: December 9, 2021
    Inventors: Hongbin LIU, Li ZHANG, Kai ZHANG, Jizheng XU, Yue WANG
  • Publication number: 20210381367
    Abstract: A downhole system has a plurality of telemetry systems and a control system configured to obtain information from one or more sensors and transmit that information on one or more of the plurality of telemetry systems. The configuration of a controller may be changed so as to change which information is transmitted on a given telemetry system and how the information is to be transmitted on the given telemetry system.
    Type: Application
    Filed: June 17, 2021
    Publication date: December 9, 2021
    Inventors: Aaron W. LOGAN, David A. SWITZER, Jili LIU, Justin C. LOGAN, Mingdong XU
  • Publication number: 20210384754
    Abstract: A device in a wireless power system may be operable with a removable accessory such as a case. The device may transmit or receive wireless power through the case while the electronic device is coupled to the case. The case may have a folio shape with a front cover portion that covers the display of the electronic device. The case may have an embedded ferrimagnetic core that relays magnetic flux during wireless power transfer operations. Magnetic alignment structures in the case may position the ferrimagnetic core in the case in a high magnetic flux density region between the power transmitting device and the power receiving device. The ferrimagnetic core relays the magnetic flux between a transmitting coil in the power transmitting device and a receiving coil in the power receiving device. The ferrimagnetic core may be formed in a front portion, a sidewall, or a rear wall of a case.
    Type: Application
    Filed: February 19, 2021
    Publication date: December 9, 2021
    Inventors: Zelin Xu, Nan Liu, Zaki Moussaoui, Gianpaolo Lisi, Kunal Bhargava, Madhusudanan Keezhveedi Sampath, Matthew J. Chabalko, Robert Scritzky
  • Publication number: 20210385438
    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 according to a rule, where the rule specifies a relationship between samples of the current video block and matrices or offset values applied in a matrix weighted intra prediction (MIP) mode during the conversion, and where the MIP mode includes determining a prediction block of the current video block by performing, on previously coded samples of the video, a boundary downsampling operation, followed by a matrix vector multiplication operation, and selectively followed by an upsampling operation.
    Type: Application
    Filed: August 11, 2021
    Publication date: December 9, 2021
    Inventors: Zhipin DENG, Kai ZHANG, Li ZHANG, Hongbin LIU, Jizheng XU
  • Publication number: 20210385482
    Abstract: Devices, systems and methods for sample refinement and filtering method for video coding are described. In an exemplary aspect, a method for video processing includes modifying, for a conversion between a block of a video and a bitstream representation of the video, a refinement value for a prediction sample in the block by applying a clipping operation to refinement value. The refinement value is derived based on a gradient value of an optical flow coding process. An output of the clipping operation is within a range. The method also includes refining the prediction sample based on the refinement value and performing the conversion based on the refined prediction sample.
    Type: Application
    Filed: August 18, 2021
    Publication date: December 9, 2021
    Inventors: Hongbin LIU, Li ZHANG, Kai ZHANG, Jizheng XU, Yue WANG
  • Publication number: 20210385812
    Abstract: Aspects of the present disclosure provide techniques for uplink (UL) data channel design. An example method is provided for operations which may be performed by a first apparatus. The example method generally comprises determining a number of pilot symbols to transmit for one or more slots of a first subframe based, at least in part, on a coverage enhancement (CE) level, and transmitting at least one uplink data channel having the determined number of pilot symbols in the one or more slots of the first subframe.
    Type: Application
    Filed: August 2, 2021
    Publication date: December 9, 2021
    Inventors: Seyed Ali Akbar FAKOORIAN, Alberto RICO ALVARINO, Peter GAAL, Wanshi CHEN, Yongbin WEI, Juan MONTOJO, Renqiu WANG, Hao XU, Xiaofeng WANG
  • Publication number: 20210385475
    Abstract: Aspects of the disclosure provide a method and an apparatus including processing circuitry for video decoding. The processing circuitry can decode prediction information of a chroma coding block (CB) from a coded video bitstream. The prediction information indicates an intra block copy (IBC) mode for the chroma CB and the chroma CB includes one or more chroma units. The processing circuitry can determine a chroma block vector (BV) for one of the one or more chroma units based on at least one luma unit collocated with the one of the one or more chroma units. The at least one luma unit is coded in the IBC mode. The processing circuitry can reconstruct at least one sample in the one of the one or more chroma units based on the chroma BV. The at least one luma unit and the chroma CB can be associated with separate luma-chroma coding trees.
    Type: Application
    Filed: August 24, 2021
    Publication date: December 9, 2021
    Applicant: Tencent America LLC
    Inventors: Xiaozhong XU, Xiang Li, Shan Liu
  • Publication number: 20210384182
    Abstract: A micro multi-color LED device includes two or more LED structures for emitting a range of colors. The two or more LED structures are vertically stacked to combine light from the two more LED structures. Light from the micro multi-color LED device is emitted horizontally from each of the LED structures and reflected upward via some reflective structures. In some embodiments, each LED structure is connected to a pixel driver and/or a common electrode. The LED structures are bonded together through bonding layers. In some embodiments, planarization layers enclose each of the LED structures or the micro multi-color LED device. In some embodiments, one or more of reflective layers, refractive layers, micro-lenses, spacers, and reflective cup structures are implemented in the device to improve the LED emission efficiency. A display panel comprising an array of the micro tri-color LED devices has a high resolution and a high illumination brightness.
    Type: Application
    Filed: June 3, 2021
    Publication date: December 9, 2021
    Applicant: Jade Bird Display (Shanghai) Limited
    Inventors: Qunchao XU, Huiwen XU, Qiming LI
  • Publication number: 20210385433
    Abstract: A method of decoding an encoded video bitstream using at least one processor includes determining, based on the encoded video bitstream, that a single-value string matching mode is enabled; obtaining, from the encoded video bistream, an index indicating a reference sample within a set including a plurality of reference samples; based on the reference sample indicated by the index, determining a color value to be used for samples included in a current string of a current block; reconstructing the samples included in the current string based on the determined color value; and reconstructing the current block using the reconstructed current string.
    Type: Application
    Filed: April 15, 2021
    Publication date: December 9, 2021
    Applicant: TENCENT AMERICA LLC
    Inventors: Xiaozhong XU, Shan LIU
  • Publication number: 20210380496
    Abstract: An improved solvent system for the formulation and application of N-alkyl thiophosphoric triamide urease inhibitors. These formulations provide safety and performance benefits relative to existing alternatives and enable storage, transport and subsequent coating or blending with urea based or organic based fertilizers. These formulations are comprised primarily of environmentally friendly aprotic and protic solvents (particularly dimethyl sulfoxide and alcohols/polyols) to stabilize the urease inhibitor.
    Type: Application
    Filed: August 17, 2021
    Publication date: December 9, 2021
    Inventors: Gary David McKnight, David Bruce Parker, Yang Zehni, Ray Perkins, Wei Xu
  • Publication number: 20210381763
    Abstract: Enhancements to a dual column, nitrogen producing cryogenic air separation unit are provided. Such enhancements include an improved air separation cycle that uses multiple condenser-reboilers and recycles a portion of the vapor from one or more of the condenser-reboilers to the incoming feed stream and or the compressed purified air streams to yield improvements in such dual column, nitrogen producing cryogenic air separation units. The multiple condenser-reboilers preferably include an integrated condenser-reboiler arrangement comprising a heat exchanger having a set of nitrogen condensing passages, a first set and second set of boiling passages, and a phase separator.
    Type: Application
    Filed: April 19, 2021
    Publication date: December 9, 2021
    Inventors: Hanfei Tuo, Zhengrong Xu