Patents by Inventor Xiaofeng Wang

Xiaofeng Wang 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).

  • Synchronization signals for narrowband operation
    Patent number: 10833826
    Abstract: Aspects of the present disclosure provide techniques for design of synchronization signals for narrowband operation, which can be used for stand-alone/in-band/guard-band deployment. An example method is provided for operations which may be performed by a base station (BS). The example method generally includes generating a primary synchronization signal (PSS) utilizing a first code sequence and a cover code applied to the first code sequence over a first number of symbols within one or more subframes, generating a secondary synchronization signal (SSS) based on a second code sequence over a second number of symbols within one or more subframes, and transmitting the PSS and the SSS in the first and second subframes to a first type of a user equipment (UE) that communicates on one or more narrowband regions of wider system bandwidth.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: November 10, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Jing Lei, Peter Gaal, Hao Xu, Wanshi Chen, Yongbin Wei, Xiaofeng Wang, Renqiu Wang, Seyed Ali Akbar Fakoorian, Madhavan Srinivasan Vajapeyam, Alberto Rico Alvarino, Juan Montojo
  • SYSTEM FOR DECENTRALIZED OWNERSHIP AND SECURE SHARING OF PERSONALIZED HEALTH DATA
    Publication number: 20200327250
    Abstract: The system disclosed implements a secure method for facilitating secure exchange of health information among various stakeholders, including data owners or contributors, data requestors or miners, and medical providers, including hospitals, clinics, and research laboratories. Additional aspects of the system provide means for conducting secure research on health data collected from data contributors. Health information is exchanged using a decentralized system that incentivizes data contributors to provide health data to data miners. The data miners, which may be pharmaceutical companies, medical laboratories, or hospitals, use various methods in order to perform research on aggregated contributor data, while maintaining contributor privacy.
    Type: Application
    Filed: May 2, 2019
    Publication date: October 15, 2020
    Inventors: Shuang Wang, Xiaofeng Wang, Haixu Tang, Wenhao Wang, Ali Farahanchi, Hao Zheng
  • AEROSOL GENERATING ARTICLE HAVING A LOW TEMPERATURE BURNING HEAT SOURCE
    Publication number: 20200315255
    Abstract: Disclosure is an aerosol generating article having a low temperature burning heat source, including a low temperature burning smoking set and a matching cigarette, the smoking set includes a heat insulation sleeve, an annular heat conductive barrel, a cover and a heat source cigarette lighter; the barrel is provided in an annular mounting groove at a left section of an inner wall of the sleeve, the cover is provided at a left end of the sleeve, a cavity of the barrel is filled with the heat source in a sealed manner; a plurality of electric heating columns are provided at a right end of the lighter; the cover is provided with a plurality of insertion holes, and after the plurality of electric heating columns are inserted into the plurality of insertion holes, the lighter gets in contact with the barrel to ignite the heat source in the barrel.
    Type: Application
    Filed: June 19, 2020
    Publication date: October 8, 2020
    Inventors: Shun ZHOU, Xiaofeng WANG, Chenghu WANG, Jin ZHANG, Qing HE, Xiaoyu ZHANG, Yaping ZHANG
  • Tool for mining chat sessions
    Patent number: 10783180
    Abstract: A method comprises counting, in a transcript of a chat session between a first user and a second user, for each theme of a plurality of themes, a number of occurrences of each keyword of a plurality of keywords assigned to a theme of a plurality of themes. The method further comprising identifying one or more themes of the chat session based on the number of occurrences of each keyword, counting the number of occurrences of a word of a first set of words and a word of a second set of words in the transcript, and assigning the transcript into a first group or a second group based on the one or more identified themes and the number of occurrences of first words and second words.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: September 22, 2020
    Assignee: Bank of America Corporation
    Inventors: Mandeep Singh, Xiaofeng Wang, Lei Chen, Tianyu Feng
  • Method, circuit and apparatus for energy management in triboelectric nanogenerator
    Patent number: 10778120
    Abstract: The present disclosure relates to nanogenerator technology, and discloses a method and a circuit for energy management in a Triboelectric Nanogenerator (TENG), as well as an apparatus including the circuit. The method includes: storing electrical energy outputted from the TENG temporarily in a temporary energy storage; and transferring the electrical energy stored temporarily in the temporary energy storage to an energy storage. With the above solution, the temporary energy storage can be charged and discharged periodically, so as to charge the energy storage. It is possible to achieve impedance match between the TENG and the energy storage and thus a significantly improved energy storage efficiency, such that an AC outputted from the TENG can be converted into a constant-voltage DC output efficiently.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: September 15, 2020
    Assignee: BEIJING INSTITUTE OF NANOENERGY AND NANOSYSTEMS
    Inventors: Simiao Niu, Xiaofeng Wang, Zhonglin Wang
  • Electronic display emission scanning using row drivers and microdrivers
    Patent number: 10762836
    Abstract: An electronic display row drivers or column drivers that send reference currents or voltages to microdrivers to be used to drive micropixels to particular levels. The microdrivers, in turn, ship current to micropixels that display images based at least in part on the shipped current.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: September 1, 2020
    Assignee: Apple Inc.
    Inventors: Hopil Bae, Wei H. Yao, Mohammad B. Vahid Far, Yafei Bi, Xiaofeng Wang, Thomas Charisoulis, Hasan Akyol, Henry C. Jen, Derek K. Shaeffer
  • METHOD FOR REMOVING PPCPS IN DRINKING WATER TREATMENT PROCESS
    Publication number: 20200262723
    Abstract: A method for removing PPCPs in a drinking water treatment process, includes the following operations: introducing, by using a manner of bottom microporous aeration, a mixture gas of O2 and O3 in which a volume percentage of O3 is 5% to 10% to an ozone contact reaction column (1) in which a cathode (3) and an anode (2) are disposed at the bottom, and a direct current is applied to the cathode and the anode; while the mixture gas is being introduced, adding, to the ozone contact reaction column (1), PPCPs containing water to be treated, with a hydraulic retention time of 10 s to 40 min, and discharging the water in real time. Further disclosed is the use of the method for removing PPCPs in a drinking water treatment process in preparation of drinking water.
    Type: Application
    Filed: February 14, 2016
    Publication date: August 20, 2020
    Inventors: Yujue WANG, Hongwei YANG, Yongkun LI, Weikun YAO, Xiaofeng WANG
  • ACCURATE LOAD SHEDDING SYSTEM AND METHOD BASED ON A POWER-DEDICATED WIRELESS NETWORK
    Publication number: 20200252833
    Abstract: Provided is an accurate load shedding system and method based on a power-dedicated wireless network. The system includes: a control master station layer, a control substation layer and a terminal user access layer. The control master station layer includes a control master station apparatus and an optical/E1 conversion device. The control substation layer includes an optical/E1 conversion device, a control substation apparatus and a wireless access device. The terminal user access layer includes a wireless core network, a base station and a control terminal. The wireless access device is connected to the wireless core network through Ethernet. The wireless core network is connected with the base station through an optical fiber. The control terminal is connected to a wireless network of the base station through customer premise equipment (CPE).
    Type: Application
    Filed: May 10, 2019
    Publication date: August 6, 2020
    Inventors: Jijun YIN, Qing CHEN, Zheng WU, Xiaofeng WANG, Xiao LU, Jianyu LUO, Xueming LI, Kaiming LUO, Jianbo LUO, Yunsong YAN
  • BATTERY ENERGY STORAGE GRID-LOAD INTERACTIVE METHOD, TERMINAL, SYSTEM AND MEDIUM FOR SUPERIMPOSED CONTROL
    Publication number: 20200251904
    Abstract: Provided is a battery energy storage grid-load interactive method, terminal, system and medium for superimposed control. The method includes: receiving, by the battery energy storage grid-load interactive terminal, a load shedding instruction sent by a master station; sending, by the battery energy storage grid-load interactive terminal, the load shedding instruction to the power conversion system to enable the power conversion system to switch the operating state of the power conversion system from a charging state or a standby state or a discharging state to a maximum power discharging state according to the load shedding instruction; and sending, by the battery energy storage grid-load interactive terminal, the load shedding instruction to the energy managing system to enable the energy managing system to control the power conversion system.
    Type: Application
    Filed: April 3, 2019
    Publication date: August 6, 2020
    Inventors: Jijun YIN, Yong XIA, Xiaofeng WANG, Yaohong LI, Xiao LU, Jianyu LUO, Jinhu WANG, Zhenyu CHEN, Haifeng LI, Chengliang WANG, Jie FAN, Cheng LI, Hongxing WANG, Yujun LU, Hao CHEN, Jiajia CAO, Ning WANG, Yonggao GE
  • CACHE SECURING METHOD AND DEVICE CAPABLE OF RESISTING SIDE CHANNEL ATTACK
    Publication number: 20200242243
    Abstract: A method and a device for securing a cache against side channel attacks are provided. An allocator identifier ALLOCATOR field is added to each cache entry in the present disclosure. Whenever an entry is allocated in the cache, the identifier of the software domain currently running on the processor is filled into the ALLOCATOR field of the allocation entry. When accessing the cache, the cache entry can be hit only if the identifier of the software domain currently running on the processor is identical to the ALLOCATOR field in the cache entry. If the cache entry to be replaced is invalid or its ALLOCATOR field is identical to the identifier of the software domain currently running on the processor, then the existing entry in the cache is replaced directly; otherwise, the entire cache is emptied.
    Type: Application
    Filed: December 30, 2018
    Publication date: July 30, 2020
    Applicant: PHYTIUM TECHNOLOGY CO.,LTD.
    Inventors: Qiang DOU, Tianlei ZHAO, Chengyi ZHANG, Jun GAO, Hongbo XUE, Xiaoyan LIU, Wenzhe LI, Yujiao WANG, Jiahong YUAN, Longpeng SUN, Shuijingtao LI, Zhe DING, Xiaofeng WANG, Xiaodao WANG, Wenhui CAO, Shuaike ZHENG, Boqing YOU, Yuan YUAN, Xiaoli ZOU
  • System for dynamically rendering a graphical user interface
    Patent number: 10719202
    Abstract: A system for dynamically rendering a graphical user interface is disclosed. The system is configured to receive a login information associated with a user. The system then identifies a persona associated with the user based on the received login information. The identified persona is associated with a set of action commands and each action command includes a condition and a content item identifier. The system proceeds to identify the action commands associated with the identified persona, evaluate the conditions associated with the identified set of action commands, and determine the conditions that are satisfied based on the evaluating. Next, the system identifies the content item identifiers associated with the satisfied conditions and retrieves the content items associated with the identified content item identifiers. Then, the system renders the retrieved content items in a graphical user interface.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: July 21, 2020
    Assignee: Bank of America Corporation
    Inventors: Chandan K. Pankaj, Vijaykumar Goyal, Yacine Arbani, Xiaofeng Wang, Santosh Mali, Patrick Kevin Kane
  • External resource control of mobile devices
    Patent number: 10685142
    Abstract: The present disclosure provides a security enhanced channel control system useable on a wireless device comprising a policy module including at least one processor and memory, the policy module configured to store, in the memory, one or more security policies and apply a compliance check to a first system layer and a second system layer; and a first policy base stored in the memory of the policy module, the first policy base being associated with a mandatory access control (“MAC”) base and defining one more security polices for access to a plurality of channels associated with the first and second system layers. The policy module cooperates with the first policy base to establish one or more access control rules that are applied to at least one of the plurality of channels to preclude an unauthorized application from accessing at least one of the channels.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: June 16, 2020
    Assignees: Indiana University Research and Technology Corporation, The Board of Trustees of the University of Illinois
    Inventors: XiaoFeng Wang, Kan Yuan, Xiaoyong Zhou, Muhammad Naveed, Soteris Demetriou, Carl Gunter
  • CLEAN-SLATE SYNCHRONIZATION SIGNAL DESIGN AND CELL SEARCH ALGORITHMS
    Publication number: 20200178189
    Abstract: Aspects of the present disclosure provide techniques for design of synchronization signals for narrowband operation and other clean-slate, OFDM based systems such as enhanced component carrier (eCC) systems. An example method is provided for operations which may be performed by a BS to generate and transmit a dual-layer PSS, and correspondingly, techniques for a UE to detect the dual-layer PSS. The PSS may be generated utilizing a binary code cover and at least one sequence applied to a number of symbols within one or more subframes of a frame.
    Type: Application
    Filed: February 4, 2020
    Publication date: June 4, 2020
    Inventors: Jing LEI, Hao XU, Peter GAAL, Xiaofeng WANG, Wanshi CHEN, Yongbin WEI, Juan MONTOJO, Alberto RICO ALVARINO
  • Data transmission method, apparatus and system for shunting transmission of local service
    Patent number: 10616791
    Abstract: Disclosed are a data transmission method, apparatus and system for realizing, when a UE is in a non-connected state, that shunting transmission of a local service can be completed, and that the use efficiency of a wireless resource can be improved. The data transmission method comprises: after a data packet sent by a local service server is received by an MEC server, when it is determined that a UE for receiving the data packet is in an RRC non-connected state, sending the data packet corresponding to the UE to a P-GW so as to trigger a paging process of the UE; and the MEC server querying, in a pre-set duration, downlink bearer information for transmitting the data packet to the UE, and when the downlink bearer information is found, sending the data packet according to the downlink bearer information.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: April 7, 2020
    Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.
    Inventors: Jianghai Duan, Guodong Ding, Xiaofeng Wang
  • GLYCOSYLATED OXALATE DECARBOXYLASE AND PREPARATION AND APPLICATION THEREOF
    Publication number: 20200080070
    Abstract: The present invention discloses a glycosylated oxalate decarboxylase. The oxalate decarboxylase is derived from edible basidiomycetes, the glycosylated oxalate decarboxylase has an enzyme activity at the pH value of 1.5-7.5, the activity at the pH value of 1.5-2.0 is 10% greater than the optimum activity, and a specific activity is more than 2 U/mg. The present invention also discloses preparation and application of the glycosylated oxalate decarboxylase. The glycosylated oxalate decarboxylase disclosed by the present invention can keep the activity under a low pH value, and can effectively prevent and treat kidney stones.
    Type: Application
    Filed: July 7, 2017
    Publication date: March 12, 2020
    Applicant: WUHAN KANGFUDE BIOTECHNOLOGY CO., LTD.
    Inventors: Haifeng LIU, Baoping SONG, Xianqiao CHEN, Huoqing CHEN, Pei TONG, Wei WANG, Xiaofeng WANG
  • Method of operating a fuel cell stack having a temporarily disabled bleed valve
    Patent number: 10581100
    Abstract: A method of operating a fuel cell stack is described. The fuel cell stack includes a cathode, an anode, and a temporarily disabled bleed valve that is otherwise configured to transition from a first position to a second position and thereby modulate nitrogen drained from the anode. The method includes increasing a first pressure in the anode via a controller and, concurrent to increasing, decreasing a second pressure in the cathode via the controller. A system and a device including the fuel cell stack are also described.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: March 3, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Manish Sinha, Chad Dubois, Xiaofeng Wang, Sergio E. Garcia
  • Systems and methods for indirect threshold voltage sensing in an electronic display
    Patent number: 10573209
    Abstract: An electronic device includes a display panel with pixels arranged in at least one row and at least one column. The electronic device also includes a sensing channel coupled to the at least one column. The sensing channel indirectly calculates a threshold voltage of the plurality of pixels based on an application of a first current level and a second current level to a data line of a first column of the at least one column of the pixels.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: February 25, 2020
    Assignee: Apple Inc.
    Inventors: Yafei Bi, Xiaofeng Wang, Haifeng Li, Mohammad B. Vahid Far, Hopil Bae, Hung Shen Lin, Hyunwoo Nho, Wei H. Yao
  • STROLLER
    Publication number: 20200010106
    Abstract: Embodiments include, but are not limited to, a stroller with a collapsible frame where an upper end of the side armrest rotatably connected to a slider, the lower end of the side armrest rotatably connected to an upper end of the rear leg set, a middle portion of the rear leg set rotatably connected to a lower end of the handlebar set, the upper end of the rear leg set and the lower end of the side armrest rotatably connected to the upper end of the front leg set, the middle portion of the front leg set rotatably connected to the front end of the seat set, the rear end of the seat set rotatably connected to the lower end of the handlebar set, and the slider capable of sliding along the length of the handlebar set, wheel assemblies, and a locking mechanism, between the handlebar set and the slider.
    Type: Application
    Filed: July 9, 2019
    Publication date: January 9, 2020
    Inventors: Xiaofeng WANG, Shunping Yang
  • Spectrum shaping voltage to current converter
    Patent number: 10523153
    Abstract: A voltage controlled oscillator (VCO) is disclosed. The VCO includes an amplifier that receives a control signal and a feedback signal and generates an amplified output signal based on the difference between the control signal and the feedback signal. The VCO also includes circuitry to generate an oscillating output signal based on the amplifier output signal. Additionally, the VCO includes a feedback amplifier that generates the feedback signal based on the output of the amplifier. The feedback amplifier includes a first resistor connected in parallel with a second resistor, the second resistor having an adjustable resistance.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: December 31, 2019
    Assignee: Lattice Semiconductor Corporation
    Inventors: Qiming Wu, Yibin Fu, Yu Shen, Zhi Wu, Kai Lei, Kai Zhou, Kexin Luo, Xiaofeng Wang
  • HYBRID ARCHITECTURE FOR ZERO BORDER DISPLAY
    Publication number: 20190385509
    Abstract: Hybrid architectures and method methods of operating a display panel are described. In an embodiment, row driver and pixel driver functions are combined in a group of backbone hybrid pixel driver chips, wherein global signal lines are distributed to the backbone hybrid pixel driver chips, where the global signals are manipulated and distributed to a row of pixel driver chips.
    Type: Application
    Filed: March 18, 2019
    Publication date: December 19, 2019
    Inventors: Xiang Lu, Mahdi Farrokh Baroughi, Xiaofeng Wang, Derek K. Shaeffer, Henry C. Jen, Hopil Bae