Patents by Inventor Lei Huang

Lei Huang 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: 11317348
    Abstract: According to an aspect of the present invention, a communication apparatus is provided. The communication apparatus may include: a Wake Up Receiver (WURx) which, in operation, receives Wake-Up Radio (WUR) Physical Layer Protocol Data Units (PPDU) from an Access Point (AP); determination circuitry which, in operation, determines an unexpected event related to the reception of the WUR PPDU; and a Primary Connectivity Radio (PCR) transmitter which, in operation, transmits to an access point (AP) information based on the determined unexpected event.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: April 26, 2022
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Rojan Chitrakar, Lei Huang, Yoshio Urabe
  • Publication number: 20220124810
    Abstract: A method and system for LBT or CCA threshold setting for directional reception and transmission are provided. In an embodiment, a method in a wireless device for determining if a channel is clear in an unlicensed band channel in a wireless network includes detecting, with the wireless device, an energy along a first beamforming direction. The method also includes determining, with the wireless device, an energy detection threshold. The method also includes determining, with the wireless device, whether the unlicensed band channel is clear in at least the first receiving direction according to the energy and the energy detection threshold.
    Type: Application
    Filed: December 29, 2021
    Publication date: April 21, 2022
    Inventors: Jiayin Zhang, Lei Huang, Yingpei Lin, Yan Xin
  • Patent number: 11309726
    Abstract: An adapter comprises an input port being coupleable with a single-voltage output interface of a single-voltage battery pack or a multi-voltage output interface of a multi-voltage battery pack, an output port electrically connected to the input port and being coupleable with a single-voltage input interface of a first power tool or a multi-voltage input interface of a second power tool, a switching mechanism being switchable between a first state and a second state. When the switching mechanism is in the first state, the input port is coupled with the single-voltage output interface and the output port is coupled with the multi-voltage input interface of the second power tool, when the switching mechanism is in the second state, the input port is coupled with the multi-voltage output interface and the output port is coupled with the single-voltage input interface of the first power tool.
    Type: Grant
    Filed: December 12, 2020
    Date of Patent: April 19, 2022
    Assignee: Globe (Jiangsu) Co., Ltd
    Inventors: Lei Huang, Xinzhong Guo, An Yan
  • Publication number: 20220116255
    Abstract: A transmission method comprises: generating a transmission signal including OFDM symbols, wherein the last OFDM symbol of the OFDM symbols can be partitioned into four segments, and wherein the generating includes: computing an initial padding factor value associated with one of the four segments and computing an initial number of OFDM symbols; determining a user with a longest packet duration among plural users; determining a common padding factor value being the initial padding factor value and a common number of OFDM symbols being the initial number of OFDM symbols of the determined user with the longest packet duration; adding pre-FEC padding bits toward one of four possible boundaries of the last OFDM symbol, the one of four possible boundaries being represented by the determined common padding factor value; and adding post-FEC padding bits in remaining segment(s) of the last OFDM symbol; and transmitting the generated transmission signal.
    Type: Application
    Filed: December 21, 2021
    Publication date: April 14, 2022
    Inventors: LEI HUANG, YOSHIO URABE, MICHAEL HONG CHENG SIM
  • Publication number: 20220110005
    Abstract: An MIMO training method including performing transmission sector sweeping using an initiator including a plurality of transmitting antennas, selecting a set of at least one transmission sector for each of the transmitting antennas using a responder including a plurality of receiving antennas; performing reception sector sweeping using the initiator, selecting a set of at least one reception sector for each of the plurality of receiving antennas using the responder, performing beam combination training using the initiator; and selecting a determined number of sector pairs consisting of a transmission sector and a reception sector from among the selected set of transmission sectors and the selected set of reception sectors using the responder, wherein the transmitting antennas in the selected sector pairs differ from one another, and the receiving antennas in the selected sector pairs differ from one another.
    Type: Application
    Filed: December 14, 2021
    Publication date: April 7, 2022
    Inventor: Lei Huang
  • Publication number: 20220105189
    Abstract: The disclosure relates to the technical field of medicine and in particular to a polyethylene glycol conjugated drug of formula I or a pharmaceutically acceptable salt thereof. The disclosure further relates to a method for preparation and an intermediate of the polyethylene glycol conjugated drug or a pharmaceutically acceptable salt thereof, a pharmaceutical composition comprising the polyethylene glycol conjugated drug or a pharmaceutically acceptable salt thereof, and use of the polyethylene glycol conjugated drug or a pharmaceutically acceptable salt thereof in preparation of a medicament.
    Type: Application
    Filed: June 3, 2019
    Publication date: April 7, 2022
    Inventors: Gaoquan LI, Dajun LI, Qian ZHANG, Xiaoling DING, Diedie LI, Lei HUANG, Jinping WAN, Yue LIU, Yusong WEI, Xiangwei YANG, Yongchen PENG, Jiao LIU, Jianhuan LI, Qiang LUO, Xi LIU, Bin WANG, Hui GONG, Yu CHEN, Yunjie JIANG, Zhongquan LIU, Kun XU, Jie LOU, Huiyu CHEN, Yue YANG, Yuanqiang WANG
  • Publication number: 20220094398
    Abstract: An initiator device is provided with a generation circuit for supporting Single User (SU)-Multiple Input Multiple Output (MIMO) operation and generating a first signal including a value that indicates which of a reciprocal MIMO phase and a non-reciprocal MIMO phase is to be applied to SU-MIMO BF training, and a transmission circuit for transmitting the first signal to a responder device. The responder device is provided with a reception circuit for receiving the first signal from the initiator device, and a processing circuit for determining on the basis of the value which of the reciprocal MIMO phase and the non-reciprocal MIMO phase is to be applied to SU-MIMO BF training.
    Type: Application
    Filed: December 2, 2021
    Publication date: March 24, 2022
    Inventors: Lei HUANG, Hiroyuki MOTOZUKA, Takenori SAKAMOTO
  • Publication number: 20220095347
    Abstract: The present disclosure provides communication apparatus and communication method for user-specific persistent allocation. A communication apparatus comprises circuitry which, in operation, generates a transmission signal comprising a common field, a user specific field and a data field, the common field including RU information for each of one or more allocations in the data field and the user specific field including one or more user information, each indicating a user-specific allocation among the one or more allocations in the data field; and a transmitter, which, in operation, transmits the generated transmission signal; wherein the user specific field is free from at least one user information for a persistent allocation containing a recurring transmission among the one or more allocations.
    Type: Application
    Filed: November 29, 2019
    Publication date: March 24, 2022
    Inventors: Lei HUANG, Yoshio URABE, Rojan CHITRAKAR, Yanyi DING
  • Patent number: 11284436
    Abstract: The present invention discloses a data sending method and a communications device. The method includes: sensing, by a communications device, a carrier located in a first unlicensed frequency band, where the first unlicensed frequency band includes at least one carrier; and sending, by the communications device, data on a carrier whose channel state is sensed to be idle. The communications device senses a first carrier in the first unlicensed frequency band, and sends the data on the first carrier that is successfully sensed to be idle. Another communications device may also sense in the first unlicensed frequency band, and send data in the first unlicensed frequency band when sensing successfully. Therefore, users of different services may fairly contend and coexist in an unlicensed frequency band.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: March 22, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yingpei Lin, Lei Huang, Yang Liu
  • Patent number: 11283498
    Abstract: A communication apparatus includes a PHY frame generating circuit that generates a PHY frame including either of a short Sector Sweep frame and a Sector Sweep frame; and an array antenna that selects, based on the PHY frame, any sector from among a plurality of sectors and transmits the PHY frame. In a case where, in the PHY frame including the short Sector Sweep frame, a Direction field of the short Sector Sweep frame indicates Initiator Sector Sweep, the PHY frame generating circuit replaces a Short Sector Sweep Feedback field indicating a number of a selected best short Sector Sweep with a Short Scrambled Basic Service Set ID field indicating an abbreviated address generated from an address of a destination communication apparatus.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: March 22, 2022
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Hiroyuki Motozuka, Masataka Irie, Takenori Sakamoto, Naganori Shirakata, Yao Huang Gaius Wee, Michael Hong Cheng Sim, Lei Huang
  • Patent number: 11277865
    Abstract: A method and system for LBT or CCA threshold setting for directional reception and transmission are provided. In an embodiment, a method in a wireless device for determining if a channel is clear in an unlicensed band channel in a wireless network includes detecting, with the wireless device, an energy along a first beamforming direction. The method also includes determining, with the wireless device, an energy detection threshold. The method also includes determining, with the wireless device, whether the unlicensed band channel is clear in at least the first receiving direction according to the energy and the energy detection threshold.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: March 15, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jiayin Zhang, Lei Huang, Yingpei Lin, Yan Xin
  • Patent number: 11277352
    Abstract: A method of adjusting a resource competition threshold for qualifying resource competition participants in resource competition is described. Processing circuitry of an apparatus obtains first competition data associated with a first time period, obtains a first optimal threshold according to the first competition data, and set the resource competition threshold according to the first optimal threshold. The processing circuitry obtains second competition data associated with a second time period, and obtains a second optimal threshold according to the second competition data. When a difference between the second optimal threshold and the resource competition threshold is greater than a difference threshold, the processing circuitry obtains third competition data and updates the resource competition threshold according to the third competition data.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: March 15, 2022
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Zhuolin Xiang, Zhengyong Zou, Ruichao Shi, Xuekai Li, Qiyun Su, Shifei Lin, Yan Zhao, Lei Huang
  • Patent number: 11277293
    Abstract: A transmission apparatus of the present disclosure comprises a packet generator which, in operation, generates a packet and a transmitter which, in operation, transmits the generated packet. The packet includes a legacy short training field, a legacy long training field, a legacy signal field (L-SIG), a repeated legacy signal field (RL-SIG), a first non-legacy signal field, a second non-legacy signal field, a non-legacy short training field, a non-legacy long training field and a data field, wherein the second non-legacy signal field is optionally present. The packet generator generates the packet by configuring the RL-SIG in different ways according to a presence or absence of the second non-legacy signal field in the packet.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: March 15, 2022
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Lei Huang, Michael Hong Cheng Sim, Yoshio Urabe
  • Patent number: 11272524
    Abstract: A transmitting apparatus generates at least one of a first type of schedule element supporting an allocation involving a single channel and a second type of schedule element supporting an allocation involving a plurality of channels and transmits a MAC frame including the generated at least one schedule element over a first channel. When the allocation involving the plurality of channels includes the first channel, the transmitting apparatus generates a first type of schedule element including information regarding the allocation involving the plurality of channels and generates the second type of schedule element including difference information, and when the allocation involving the plurality of channels does not include the first channel, the transmitting apparatus omits the generation of the first type of schedule element and generates the second type of schedule element including all the information regarding the allocation involving the plurality of channels.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: March 8, 2022
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Lei Huang, Hiroyuki Motozuka, Yao Huang Gaius Wee, Takenori Sakamoto
  • Patent number: 11269835
    Abstract: A computer-implemented method, according to one embodiment, is used to creating customized templates and template recommendations. The computer-implemented method includes: extracting text content from user information which corresponds to a user, and using the text content extracted from the user information to generate feature vectors. The feature vectors are further used to form one or more clusters of existing user editions. For each of the one or more formed clusters, a tree structure is generated for each user edition in the cluster. Moreover, the tree structures in the cluster are combined into a merged tree structure. A customized template is generated for each of the one or more formed clusters using the respective merged tree structure, and at least one of the customized templates is recommended to the user based on the user information.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: March 8, 2022
    Assignee: International Business Machines Corporation
    Inventors: Lei Huang, Guangjie Ren, Shun Jiang, Raphael I. Arar, Eric Young Liu
  • Publication number: 20220062191
    Abstract: The invention relates to the technical field of gene treatment and nano targeted delivery, in particular to a siRNA delivery system compound as well as a preparation method and application thereof.
    Type: Application
    Filed: April 12, 2021
    Publication date: March 3, 2022
    Inventors: Zhimin Wang, Chengshen Zhu, Wentao Liu, Xiangyang Zhang, Suqin He, Yaohe Wang, Hao Liu, Miaoming Huang, Chenglin Zhang, Bin Qin, Lei Huang
  • Publication number: 20220060362
    Abstract: A transmission apparatus of the present disclosure comprises a transmission signal generator which generates a transmission signal that includes a legacy preamble, a non-legacy preamble and a data field, wherein the non-legacy preamble comprises a first signal field and a second signal field, the second signal field comprising a first channel field and a second channel field, each of the first channel field and the second channel field comprising a common field that carries resource assignment information for one or more terminal stations and a user-specific field that carries per-user allocation information for the one or more terminal stations, and wherein a part of the user-specific field of one of the first channel field and the second channel field whichever is longer than the other channel field in length before appending padding bits is relocated to the other channel field; and a transmitter which transmits the generated transmission signal.
    Type: Application
    Filed: November 1, 2021
    Publication date: February 24, 2022
    Inventors: LEI HUANG, YOSHIO URABE, MICHAEL HONG CHENG SIM
  • Patent number: 11249736
    Abstract: A method and system of evaluating a user experience (UX) design are provided. A UX design is received. All objects that are identified to be part of a background of the input UI screen are removed to create a filtered input UI screen. The input UI screen is assigned to a cluster. A target UI screen of the input screen is determined and its background removed, to create a filtered target UI cluster. The target UI screen is assigned to a cluster. The filtered input UI screen is used as an input to a deep learning model to predict a target UI cluster. The predicted target UI cluster is compared to the filtered target UI cluster based on the clustering. Upon determining that the filtered target UI cluster is similar to the target UI screen, the UX design is classified as being successful.
    Type: Grant
    Filed: December 24, 2020
    Date of Patent: February 15, 2022
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Lei Huang, Shun Jiang, Peifeng Yin, Aly Megahed, Eric Liu, Guangjie Ren
  • Patent number: 11244649
    Abstract: Techniques are described for calibrating a device having a first sensor and a second sensor. Techniques include capturing sensor data using the first sensor and the second sensor. The device maintains a calibration profile including a translation parameter and a rotation parameter to model a spatial relationship between the first sensor and the second sensor. Techniques include determining a calibration level associated with the calibration profile at a first time. Techniques include determining, based on the calibration level, to perform a calibration process. Techniques include performing the calibration process at the first time by generating one or both of a calibrated translation parameter and a calibrated rotation parameter and replacing one or both of the translation parameter and the rotation parameter with one or both of the calibrated translation parameter and the calibrated rotation parameter.
    Type: Grant
    Filed: November 3, 2020
    Date of Patent: February 8, 2022
    Assignee: Magic Leap, Inc.
    Inventors: Yu-Tseh Chi, Jean-Yves Bouguet, Divya Sharma, Lei Huang, Dennis William Strelow, Etienne Gregoire Grossmann, Evan Gregory Levine, Adam Harmat, Ashwin Swaminathan
  • Patent number: 11245559
    Abstract: A transmission method comprises: generating a transmission signal including OFDM symbols, wherein the last OFDM symbol of the OFDM symbols can be partitioned into four segments, and wherein the generating includes: computing an initial padding factor value associated with one of the four segments and computing an initial number of OFDM symbols; determining a user with a longest packet duration among plural users; determining a common padding factor value being the initial padding factor value and a common number of OFDM symbols being the initial number of OFDM symbols of the determined user with the longest packet duration; adding pre-FEC padding bits toward one of four possible boundaries of the last OFDM symbol, the one of four possible boundaries being represented by the determined common padding factor value; and adding post-FEC padding bits in remaining segment(s) of the last OFDM symbol; and transmitting the generated transmission signal.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: February 8, 2022
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Lei Huang, Yoshio Urabe, Michael Hong Cheng Sim