Patents by Inventor Xi Zhang

Xi 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).

  • Patent number: 10931266
    Abstract: A flip-flop element is configured to gate the clock inversions within a master-slave flip-flop element. The flip-flop element reduces the number of circuit elements within the flip-flop element by collapsing elements with common functionality into a single circuit element. Further, by making the actions of judiciously selected circuit elements conditional upon the state of the input data, the flip-flop element circuit reduces the number of internal transitions. In this manner, by reducing the number of circuit elements as well as the number of transitions, the flip-flop element achieves substantial reduction in overall system power consumption, resulting in a more efficient system.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: February 23, 2021
    Assignee: NVIDIA Corporation
    Inventors: Ilyas Elkin, Ge Yang, Xi Zhang, Jiani Yu
  • Patent number: 10918289
    Abstract: Disclosed herein is a ring-shaped wearable device for detecting biometrics with a light source and a photodetector directed towards a digit wearing the ring-shaped device. The ring can thus detect oxygen saturation of a wearer based on light transmitted through the wearer's finger. The ring can include power saving measures to extend the battery life. A motion sensor can help determine opportune moments for data collection such as when the wearer is still. The motion sensor can be used to remove noise from the data caused by motion. After data is collected or during data collection, the ring can wirelessly communicate the data to another portable electronic device such as a phone or watch.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: February 16, 2021
    Assignee: FITBIT, INC.
    Inventors: Jaclyn Leverett Wasson, Peter W. Richards, Lindsey Michelle Sunden, Corey Stephen O'Connor, Conor Joseph Heneghan, Xi Zhang, Hamed Vavadi, Chris Hanrahan Sarantos, Peter Colin Dess
  • Publication number: 20210042403
    Abstract: A fingerprint unlocking method and a terminal are provided. The method may be applied to a terminal having an in-screen fingerprint detection function. When the terminal is in a screen-locked state, the terminal determines whether an operation of a user meets a preset condition. If the operation of the user meets the preset condition, a fingerprint recognition identifier is displayed on a touch display screen of the terminal. A display area of the fingerprint recognition identifier is an area in which fingerprint recognition can be performed. The method resolves a problem that the user cannot perform fingerprint unlocking because the user cannot see a position of a fingerprint detector.
    Type: Application
    Filed: March 26, 2018
    Publication date: February 11, 2021
    Inventors: Jin Zhou, Xi Zhang
  • Patent number: 10901437
    Abstract: An unmanned aerial vehicle is described herein. The unmanned aerial vehicle includes a fuselage body, a lift mechanism coupled to the fuselage body, and a depth sensing and obstacle avoidance system coupled to the fuselage body. The depth sensing and obstacle avoidance system includes a platform assembly, a pair of stereovision cameras coupled to a platform assembly, and a motor assembly coupled to the fuselage body and to the platform assembly. The platform assembly includes a support member extending between a first end and an opposite second end along a longitudinal axis. The pair of stereovision cameras includes each stereovision camera positioned at an opposite end of the support member. The motor assembly is configured to rotate the platform assembly with respect to the fuselage body about a rotational axis perpendicular to the longitudinal axis of the platform assembly.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: January 26, 2021
    Assignee: Hangzhou Zero Zero Technology Co., Ltd.
    Inventors: Tong Zhang, Lei Zhang, Zhaozhe Wang, Xi Zhang, Mengwen Tan
  • Patent number: 10897579
    Abstract: A photographing method includes entering a slow shutter photographing mode, dividing each frame of image of the photographed object into a light trail region, a background light source region, and a non-light-source region, merging the light trail regions of the frames of images, setting a merged light trail region as a light trail region of a target image, setting the background light source regions of one or more of the frames of images as a background light source region of the target image to avoid overexposure, merging the non-light-source regions of one or more of the frames of images, setting a merged non-light-source region as a non-light-source region of the target image to enhance brightness of the non-light-source region, and storing the target image after obtaining a photographing instruction.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: January 19, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yun Zhao, Yining Huang, Xi Zhang
  • Patent number: 10893429
    Abstract: The present disclosure relates to example uplink measurement signal indication methods and apparatuses. One example method includes receiving, by a terminal device, signaling sent by a network device, where the signaling carries indication information that indicates a transmit beam for sending an uplink measurement signal by the terminal device, and sending, by the terminal device, the uplink measurement signal to the network device based on the indication information by using the transmit beam.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: January 12, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xiaoyong Tang, Xi Zhang, You Li
  • Publication number: 20210003055
    Abstract: A thermal shock resistant and asymmetric honeycomb ceramic wall-flow filter, comprising: an inlet honeycomb ceramic surface and an outlet honeycomb ceramic surface. Inlet channels (1) and outlet channels (2) are provided on both the inlet honeycomb ceramic surface and the outlet honeycomb ceramic surface. The inlet channels (1) are in communication with the outlet channels (2). Outlet ends of the inlet channels (1) and inlet ends of the outlet channels (2) are sealed. An inner diameter of the inlet channel (1) is greater than that of the outlet channel (2). A cross-section of the inlet channel (1) is a square, and is provided with a fillet, or two adjacent edges are connected by two connecting lines, or two adjacent edges are connected by two connecting lines or a circular arc located between the two connecting lines. A cross-section of the outlet channel (2) is a square, and is also provided with a fillet or a chamfer.
    Type: Application
    Filed: November 21, 2018
    Publication date: January 7, 2021
    Applicant: SHANDONG SINOCERA FUNCTIONAL MATERIAL CO., LTD
    Inventors: Xibin SONG, Bing ZHANG, Xi ZHANG
  • Publication number: 20210000426
    Abstract: A classification system of epileptic EEG signals based on non-linear dynamics features includes a preprocessing module, a feature extraction module, a feature sorting module, a feature selection module and a classification module: the preprocessing module uses discrete wavelet transformation to remove noise in the EEG data and obtain effective EEG signal data without noise; the feature extraction module uses multiple entropy algorithms to calculate the non-linear dynamics features of each EEG signal; the feature sorting module sorts features with analysis of variance; the feature selection module selects the optimal feature subset that has the most significant impact on the accuracy of the model uses a uses a forward sequential feature selection algorithm; the classification module transforms the judgment of EEG during the period of epilepsy and EEG during the interval period of epilepsy into a binary classification problem by use of a least squares support vector machine algorithm.
    Type: Application
    Filed: March 17, 2020
    Publication date: January 7, 2021
    Applicant: Peking University
    Inventors: Shan'en CHEN, Xi ZHANG
  • Patent number: 10874308
    Abstract: An aspect of the disclosure pertains to a blood pressure measurement device and methods of obtaining pulse information from a blood pressure measurement. An inflatable bladder defines, at least in part, a pressurizable volume. The inflatable bladder may be inflated to pressurize a user's appendage and temporarily occlude blood flow in the user's appendage, where the inflatable bladder is inflated to a pressure greater than a maximum amplitude pressure from oscillometric data in a pressure profile. The inflatable bladder may be deflated and then re-inflated to a target pressure and held at the target pressure to generate pulse information, or the inflatable bladder may be deflated to the target pressure and held at the target pressure to generate the pulse information.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: December 29, 2020
    Assignee: Fitbit, Inc.
    Inventors: Xi Zhang, Keith Adam Wong, Andrew Larsen Axley, Dan Stefan Tudose, Conor Joseph Heneghan, Radu Dobroiu, Alexandru-Mihai Şolot
  • Publication number: 20200399177
    Abstract: Disclosed herein are building products comprising a polyurethane formed by the reaction of at least one isocyanate selected from the group consisting of diisocyanates, polyisocyanates and mixtures thereof and at least one polyol in the presence of fly ash and a non-silicone surfactant, wherein, the fly ash is present in an amount from 40% to 90% by weight based on the total weight of the building product; and wherein, the non-silicone surfactant is present in an amount from 0.5% to 2.2% by weight of polyol used to form the polyurethane. The building products possess desirable surfaces that are substantially free of pinholes, while also possessing a modulus, and other properties, that is comparable to or greater than that of building products substantially free of a non-silicone surfactant. Also disclosed are methods for producing the building products.
    Type: Application
    Filed: February 26, 2018
    Publication date: December 24, 2020
    Applicant: BORAL IP HOLDINGS (AUSTRALIA) PTY LIMITED
    Inventors: Edward F. CASSIDY, Ying ZHANG, Xi ZHANG
  • Patent number: 10873382
    Abstract: Embodiments provide a beam switching method and a related device. Under the method a first subframe sent by a base station by using a first beam can be received by a terminal device. The first subframe includes first-order downlink control information and second-order downlink control information. The terminal device can search for the second-order downlink control information based on the first-order downlink control information. The first-order downlink control information includes location indication information of the second-order downlink control information in the first subframe. the terminal device can switch from the first beam to a second beam based on the found second-order downlink control information to receive a second subframe. The downlink control information includes a switching indication field of the second beam. In this way, flexibility of beam switching is improved, load balancing of a control channel is implemented, and a latency of beam switching is reduced.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: December 22, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xi Zhang, Peng Guan
  • Publication number: 20200361557
    Abstract: A control method and device for a motorcycle and a motorcycle are disclosed that include obtaining a current environment parameter where the motorcycle is currently located and controlling the power output of the motorcycle according to the environment parameter.
    Type: Application
    Filed: July 28, 2020
    Publication date: November 19, 2020
    Inventor: Xi Zhang
  • Publication number: 20200355437
    Abstract: A second-level liquid slag cache system with flow and temperature monitoring and control functions is disclosed. A slag inlet is located at an upper portion of the slag ladle casing; at least one slag discharging unit is located at a side of a lower portion of the slag ladle casing; one slag discharging unit is corresponding to one stopper; the stopper includes a stopper head, a stopper rod and a stopper control mechanism; the stopper control mechanism is configured to control the flow area between the stopper head and the sizing nozzle; a sealing cover is disposed outside the sizing nozzle; a slag control tube is installed at a bottom of the sealing cover. The present invention is able to achieve liquid slag buffer, flow control and heat compensation, so as to allow liquid slag to continuously stably perform a subsequent granulation process.
    Type: Application
    Filed: April 13, 2017
    Publication date: November 12, 2020
    Inventors: Shuzhong Wang, Zhongqing Zhang, Xi Zhang, Liwei Ma, Lin Chen, Haiyu Meng, Zefeng Jing, Jianjun Cai, Pengfei Yu
  • Publication number: 20200353840
    Abstract: A bicycle information prompting method, a device, a server, and a user terminal are disclosed. The method comprises obtaining current power information of a target bicycle and sending the target bicycle to a user terminal associated with the target bicycle according to the current power information, so that the user terminal displays prompt information associated with the target bicycle.
    Type: Application
    Filed: July 23, 2020
    Publication date: November 12, 2020
    Inventors: Xi Zhang, Yuxin Zhai, Xiaotao Xiao
  • Publication number: 20200358954
    Abstract: The present disclosure discloses a method for image or video shooting. The method is applied to a terminal that includes a first camera, a second camera, and a third camera. The second camera is a black-and-white camera, and the first camera, the second camera, and the third camera are cameras using prime lenses. The third camera is a color camera using a tele-photo lens. The method includes determining at least one camera from the first camera, the second camera, and the third camera based on a target zoom ratio as a target camera. The method further includes capturing, by using the target camera, at least one image that includes a target scene. The method further includes obtaining an output image of the target scene based on the at least one image that includes the target scene. According to the present disclosure, an approximately 5x lossless zoom effect is achieved.
    Type: Application
    Filed: July 23, 2020
    Publication date: November 12, 2020
    Inventors: Yinting WANG, Xi ZHANG, Yifan ZHANG, Jinwei CHEN, Haidong GAO, Changqi HU, Ruihua LI
  • Publication number: 20200336354
    Abstract: An information transmission method related to the field of communications technologies includes: generating an orthogonal frequency division multiplexing (OFDM) symbol, where the OFDM symbol includes a pi/2-BPSK modulated data signal and a pi/2-binary phase shift keying (BPSK) modulated phase tracking reference signal (PTRS); and sending the OFDM symbol. This method may be applied to an uplink single carrier transmission scenario or a downlink single carrier transmission scenario.
    Type: Application
    Filed: July 7, 2020
    Publication date: October 22, 2020
    Inventors: Xi ZHANG, Minghui XU, Lei CHEN
  • Publication number: 20200280386
    Abstract: This application discloses a data reporting method, a data receiving method, and a related apparatus. In this application, a terminal device reports, to a network device, one group of information used to indicate scheduling bandwidth thresholds and/or scheduling MCS thresholds. Compared with directly reporting thresholds, in this application, fewer bits can be occupied, thereby reducing overheads.
    Type: Application
    Filed: May 18, 2020
    Publication date: September 3, 2020
    Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
    Inventors: Minghui Xu, Xi Zhang
  • Publication number: 20200280473
    Abstract: The present invention provides an apparatus for constructing a pre-DFT sample sequence for an OFDM-signal, comprising: a processor configured to construct a pre-DFT sample sequence with a pre-defined length such that it comprises data; and a PTRS-group, wherein the last sample of the PTRS-group is placed within the pre-DFT sample sequence at a pre-defined position located B samples before the end of the pre-DFT sample sequence.
    Type: Application
    Filed: May 15, 2020
    Publication date: September 3, 2020
    Inventors: Yoav LEVINBOOK, Ezer MELZER, Doron EZRI, Minghui XU, Xi ZHANG
  • Publication number: 20200276958
    Abstract: A bicycle parking management method and system which receives, by a user terminal, a temporary parking instruction triggered by a user; sends, by the user terminal, the temporary parking instruction to a cloud management platform; sends, by the cloud management platform, a first temporary locking instruction to a bicycle terminal after receiving the temporary parking instruction sent by the user terminal; and locks, by the bicycle terminal, a locking device on the bicycle, after receiving the first temporary locking instruction sent by the cloud management platform. The solution provided by the present disclosure does not require the user to manually lock the bicycle, thus improving the user's experience, and also providing a new solution for managing the parking of the bicycle.
    Type: Application
    Filed: May 19, 2020
    Publication date: September 3, 2020
    Inventors: Xi ZHANG, Wei FENG, Xiaotao XIAO, Yang SONG
  • Publication number: 20200279485
    Abstract: The disclosure provides a parking management system and a parking management method. The parking management system can comprise one or more servers in communication with one or more vehicles. The one or more vehicles can be configured to be shared and utilized by one or more users for transportation. The one or more servers can be configured to receive location data from the one or more vehicles, and determine, based on the received location data and for each vehicle, whether the vehicle is located within one or more predefined parking areas when (1) the vehicle is not in use or (2) upon completion of a transportation trip by the vehicle.
    Type: Application
    Filed: May 6, 2020
    Publication date: September 3, 2020
    Inventors: Xi ZHANG, Yuxin ZHAI, Xiaotao XIAO