Patents by Inventor Qing Zhao

Qing Zhao 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: 10461563
    Abstract: Embodiments of the present disclosure provide a screen and a device comprising the screen. The screen comprises: an induction current generation circuit configured to generate an induction current; an induction current transmission circuit connected to the induction current generation circuit and configured to transmit the induction current; and a control circuit connected to the induction current transmission circuit and configured to control the transmission of the induction current. The device comprises the screen described above, and the device further comprises a charging circuit connected to the induction current transmission circuit and the battery and configured to rectify the induction current so as to charge the battery. The screen according to the embodiments of the present disclosure and the device comprising the screen can provide a charging current for the battery of the electronic product by using a circuit built in the screen.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: October 29, 2019
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Zhiyong Wang, Qing Zhao, Shuai Xu, Lei Guo, Zhengxin Zhang
  • Publication number: 20190326655
    Abstract: Embodiments of the present invention provide a tunable filter and a tunable filtering device. The tunable filter includes: a cavity, a filtering component that is in the cavity and that is provided on a first surface thereof with at least one through hole, a drive mechanism, and at least one first adjustable component and at least one second adjustable component that are connected to the drive mechanism and that run through the first surface of the cavity; one end of one first adjustable component is disposed opposite to one of the at least one through hole; one end of one second adjustable component is disposed opposite to a position between two adjacent through holes in the at least one through hole; and the drive mechanism controls the at least one first adjustable component to synchronously move, and controls the at least one second adjustable component to synchronously move.
    Type: Application
    Filed: June 28, 2019
    Publication date: October 24, 2019
    Inventors: Hui WANG, Qing ZHAO, Guoxiang CAO, Jinyuan XIE
  • Patent number: 10422967
    Abstract: An optical coupling apparatus and method are described. An embodiment of an optical coupling apparatus may include a first optical chip, a second optical chip, and an optical writing waveguide block. In the apparatus, the first optical chip is coupled to the optical writing waveguide block in a first coupling manner, and the second optical chip is coupled to the optical writing waveguide block in a second coupling manner. Furthermore, in the apparatus, the first optical chip is optically interconnected to the second optical chip by using the optical writing waveguide block. Compatibility between a plurality of coupling manners is therefore enabled by using the technical solutions described herein.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: September 24, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Qing Zhao, Xiaolu Song, Li Zeng, Ruiqiang Ji, Yanbo Li
  • Patent number: 10419491
    Abstract: A system is provided that includes one or more computing servers and a processing circuit for analyzing data transactions of the computing servers. Each of the computing servers is configured to provide respective services to remote users. The processing circuit is configured to analyze data transactions of at least one of the computing servers, which is associated with a user account. A security policy of the user account includes conditions that are indicative of unauthorized access when the conditions are satisfied by various characteristics of the analyzed data transactions. The processing circuit is configured to determine a threat level as function of the characteristics of the data transactions and the conditions of the security policy. In response to the threat level exceeding a first threshold level indicated in the security policy of the user account, the processing circuit performs an action for the user account that is associated with the first threshold level.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: September 17, 2019
    Assignee: 8x8, Inc.
    Inventors: Bryan Martin, Zhishen Liu, Qing Zhao
  • Patent number: 10389883
    Abstract: Processing of communications routed by an IPBX server are disclosed. At least one processing circuit is communicatively coupled to an Internet-Protocol Private Branch Exchange (IPBX) server that is configured and arranged to route calls for a plurality of agents in a communications/call center. The processing circuit is configured to receive communications event messages from the IPBX server for communications routed by the IPBX server, generate, during a communication to a first agent of the plurality of agents, a set of data metrics including communications summary metrics based on the communications event messages; and redirect, during the communication to the first agent, the communication to a second agent of the plurality of agents in response to the set of data metrics satisfying a set of criteria indicated in a policy.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: August 20, 2019
    Assignee: 8x8, Inc.
    Inventors: Zhishen Liu, Qing Zhao, Bryan R. Martin
  • Patent number: 10381286
    Abstract: A power module is disclosed. The power module includes a first substrate, a first metal layer, at least one conductive structure and at least one power device. The first metal layer is disposed on the first substrate. The first metal layer has a first thickness d1. The first thickness d1 satisfies: 5 ?m?d1?50 ?m. The conductive structure is disposed at a position different to the first metal layer on the first substrate. The conductive structure has a second thickness d2. The second thickness d2 satisfies: d2?100 ?m. The power device is disposed on the first substrate, the first metal layer or the conductive structure. The driving electrode of the power device is electrically connected to the first metal layer. The power electrode of the power device is electrically coupled to the conductive structure.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: August 13, 2019
    Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
    Inventors: Shou-Yu Hong, Gan-Yu Zhou, Jian-Hong Zeng, Zhen-Qing Zhao
  • Patent number: 10375582
    Abstract: A mobile device transmits data over a shared spectrum in an uplink channel to a base station in a contention-based access scheme. The mobile device obtains data to be wirelessly transmitted over the shared spectrum in the uplink channel to the base station. The uplink channel is formatted with a frame/subframe structure with a predetermined timing. The mobile device determines whether the shared spectrum is free for transmission according to a listen before transmit procedure. When the shared spectrum is free for transmission, the mobile device contends with other mobile device to gain access to the uplink channel. After gaining access to the uplink channel, the mobile device transmits the data over the shared spectrum in the uplink channel to the base station.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: August 6, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Vikram Chandrasekhar, Kedar Shirali, Qing Zhao, Rajesh Pazhyannur
  • Publication number: 20190237225
    Abstract: A composite thermistor material, a preparation method and an application thereof. The perovskite structure oxide and the pyrochlorite structure oxide are composite by solid state reaction method, which comprise process of ball milling, drying, and calcining. Then the thermistor ceramics with high temperature resistance and controllable B value are sintered at high temperature after mould forming, then the thermistor disks are coated by platinum paste, and then the platinum wire is welded as the lead wire to form thermistor element. The thermistor of the invention can realize temperature measurement from room temperature to 1000° C. and has good negative temperature coefficient thermistor characteristics. The thermistor coefficient B can be adjusted by changing the two-phase ratio to meet the requirements of different systems.
    Type: Application
    Filed: December 25, 2018
    Publication date: August 1, 2019
    Inventors: Li NI, Shenglin JIANG, Dong SU, Mingya LI, Anqi FENG, Chao ZHANG, Qing ZHAO, Bo ZHANG, Yang ZHOU, Ju FANG, Lilong FANG
  • Publication number: 20190227280
    Abstract: The present disclosure provides a camera lens which has good optical properties, is ultra-thin, and includes five lenses having a bright F-number of less than 2.05. The camera lens includes, from an object side to an image side, a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a negative refractive power, a fourth lens having a positive refractive power and a fifth lens having a negative refractive power. The camera lens satisfies specified relational expressions.
    Type: Application
    Filed: August 10, 2018
    Publication date: July 25, 2019
    Inventors: Qing Zhao, Hiroyuki Teraoka
  • Publication number: 20190227283
    Abstract: The present disclosure provides an ultrathin 5-lensed camera lens having excellent optical characteristics, and a F number less than 2.05. Starting from the object side, the camera lens comprises in order: a first lens with positive refractive power, a second lens with negative refractive power, a third lens with negative refractive power, a fourth lens with positive refractive power and a fifth lens with negative refractive power. The lenses meet designated conditional formulas.
    Type: Application
    Filed: December 30, 2018
    Publication date: July 25, 2019
    Inventors: Qing Zhao, Hiroyuki Teraoka
  • Patent number: 10333189
    Abstract: A tunable filter includes a first waveguide body, a second waveguide body, a metal plate, a tuning piece, and a driving piece. A first cavity is disposed in the first waveguide body, and a second cavity is disposed in the second waveguide body. The metal plate is sandwiched between the first waveguide body and the second waveguide body, multiple windows are disposed on the metal plate, and the first cavity and the second cavity are in communication and are symmetrically distributed on both sides of the metal plate. The tuning piece includes a dielectric pull-rod and multiple metal sheets connected to the dielectric pull-rod, the dielectric pull-rod protrudes out of the first waveguide body and is connected to the driving piece, the multiple metal sheets are disposed inside the first cavity, and the multiple metal sheets are disposed corresponding to the multiple windows.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: June 25, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Qing Zhao, Tao Tian, Jibin Zhou
  • Patent number: 10334614
    Abstract: Various methods and apparatus are disclosed for mitigating interference between communications between different radio access technologies in a communication device. Methods and apparatus include communicating between a first communication device and a second communication device according to a first communication protocol, and communicating between the first communication device and a third communication device according to a second communication protocol. The methods and apparatus further include determining a first time interval associated with when data is to be transmitted between the first communication device and the second communication device according to the first communications protocol. The methods and apparatus also include sending to the third communication device, an indication of a second time interval to prompt the third communication device not transmit to the first communication device during the second time interval, wherein the second time interval corresponds to the first time interval.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: June 25, 2019
    Assignee: Marvell International Ltd.
    Inventors: Jihwan P. Choi, Hui-Ling Lou, Leilei Song, Yakun Sun, Qing Zhao
  • Patent number: 10314178
    Abstract: A package module includes a circuit board, an electronic component disposed on the circuit board, a frame disposed next to at least one side of the electronic component, and an encapsulant. A gap is formed between the frame and the electronic component. The encapsulant includes a first portion covering at least a part of the circuit board, and a second portion filling into at least a part of the gap. The first portion has a first height relative to the circuit board, and the second portion has a second height relative to the circuit board, in which the second height is greater than the first height.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: June 4, 2019
    Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
    Inventors: Hai-Bin Xu, Tao Wang, Shou-Yu Hong, Zhen-Qing Zhao
  • Publication number: 20190140791
    Abstract: In one embodiment, a system includes a processor to determine a number P of how many multi-user groups are to be formed to promote airtime fairness for N client devices in which each one client device of the N client devices will be equally represented in the to-be-formed multi-user groups and in which each of the to-be-formed groups is to be actively considered by a scheduler for transmission purposes, the N client devices being associated with N wireless connections with an access point having multi-user simultaneous communication multiple-input multiple-output technology, define P multi-user groups with each one multi-user group of the P multi-user groups having a capacity for M client devices from the N client devices, N being greater than M, and allocate the N client devices to the P multi-user groups with each one client devices of the N client devices being equally represented in the P multi-user groups.
    Type: Application
    Filed: November 5, 2017
    Publication date: May 9, 2019
    Inventors: Qing ZHAO, Benjamin Jacob CIZDZIEL, Jin XIE, David KLOPER
  • Patent number: 10276522
    Abstract: The disclosure discloses a power module. The power module includes a substrate, a power chip, a bonding material, and at least one spacer. The substrate includes a circuit-patterned layer. The power chip bonded to the circuit-patterned layer by the bonding material. The spacer is located between the circuit-patterned layer and the power chip, so as to keep the power chip away from the circuit-patterned layer in a distance.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: April 30, 2019
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Tao Wang, Zhen-Qing Zhao, Kai Lu, Zheng-Fen Wan, Hai-Bin Xu
  • Patent number: 10218416
    Abstract: Embodiments herein describe a network device (e.g., an access point) that dynamically arranges multi-user (MU) multiple input multiple output (MIMO) compatible client devices into MU-MIMO groups. That is, the network device uses network metrics and historical data to change the assignment of client devices in the MU-MIMO groups which may improve MU-MIMO efficiency by reducing the amount of power that leaks between the clients devices in the group. In one embodiment, the AP identifies a MU-MIMO group based on a performance evaluation such as evaluating network metric or determining if the group is underutilized. The AP can replace the identified MU-MIMO group with a substitute MU-MIMO group where the substitute MU-MIMO group is selected based on historical data corresponding to the client devices assigned to the substitute MU-MIMO group.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: February 26, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Matthew A. Silverman, Paul J. Stager, David S. Kloper, Brian D. Hart, Qing Zhao
  • Patent number: 10212721
    Abstract: The present disclosure describes systems and techniques relating to wireless communications. A described system includes a first radio configured to wirelessly transmit to a first station in accordance with a first wireless communication technology via uplink periods that are scheduled by the first station; a second radio configured to wirelessly communicate with a second station in accordance with a second wireless communication technology; and a controller coupled with the first and second radios, the controller being configured to select for puncturing one or more of the uplink periods based on information about types of data to be transmitted respectively in the uplink periods, puncture, independently of the first station, the one or more selected uplink periods by causing the first radio to terminate transmissions to the first station during the selected uplink period(s), and cause the second radio to receive data from the second station during the selected uplink period(s).
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: February 19, 2019
    Assignee: MARVELL WORLD TRADE LTD.
    Inventors: Yi-Ling Chao, Qing Zhao, Leilei Song, Hui-Ling Lou, Yakun Sun
  • Patent number: 10204882
    Abstract: A package module includes a power module, a first thermal dissipating component and a packaging plastic. The power module includes a substrate and at least one power semiconductor component disposed on the substrate. The first thermal dissipating component is disposed over the power module. The packaging plastic covers the power module and the first thermal dissipating component, wherein a portion of the first thermal dissipating component is exposed from the packaging plastic.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: February 12, 2019
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Le Liang, Shou-Yu Hong, Zhen-Qing Zhao
  • Patent number: 10195996
    Abstract: An image display method for vehicle rearview mirrors is provided. The method includes obtaining at last two images to be displayed by an image obtaining module, and displaying the at least two images in a split-screen manner on at least one rearview mirror of the vehicle rearview mirrors.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: February 5, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Shuai Xu, Lei Guo, Zhiyong Wang, Qing Zhao, Hong Zhu
  • Publication number: 20190037706
    Abstract: A package module includes a circuit board, an electronic component disposed on the circuit board, a frame disposed next to at least one side of the electronic component, and an encapsulant. A gap is formed between the frame and the electronic component. The encapsulant includes a first portion covering at least a part of the circuit board, and a second portion filling into at least a part of the gap. The first portion has a first height relative to the circuit board, and the second portion has a second height relative to the circuit board, in which the second height is greater than the first height.
    Type: Application
    Filed: September 27, 2018
    Publication date: January 31, 2019
    Inventors: Hai-Bin XU, Tao WANG, Shou-Yu HONG, Zhen-Qing ZHAO