Patents by Inventor Yongfeng Liu

Yongfeng Liu 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: 10313210
    Abstract: A method for acquiring monitoring data and a system thereof, a task distribution server and an agent are disclosed. The method for acquiring the monitoring data includes: receiving registrations of the agent and a gathering device by the task distribution server; receiving, by the task distribution server, an acquiring instruction sent by the gathering device; and sending, by the task distribution server, the acquiring instruction to the agent to instruct the agent to acquire the monitoring data. Hence, a flexibility in acquiring the monitoring data is improved.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: June 4, 2019
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventor: Yongfeng Liu
  • Publication number: 20180261256
    Abstract: A method and an apparatus for playing a video are described. In an example, processing circuitry of the apparatus acquires, when the video is switched from a first application interface to a second application interface, first progress information and first position information of the video in the first application interface. The first position information is indicative of a first video playback window in the first application interface. Then, the processing circuitry resumes playing the video in the second application interface according to the first progress information. Further, the processing circuitry acquires, when the video is switched from the second application interface to the first application interface, second progress information of the video in the second application interface.
    Type: Application
    Filed: April 26, 2018
    Publication date: September 13, 2018
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Yongfeng LIU, Hui WANG
  • Patent number: 9991536
    Abstract: The Invention discloses a self-supplied hydrogen fuel cell system and a working method thereof, the system comprising a diesel tank, a gas separator, a fuel cell, a low-temperature separation reactor, a high-temperature separation reactor, an auto-thermal reformer, a water tank and a catalytic burner; With the high-temperature separation reactor, the low-temperature separation reactor and the auto-thermal reformer, diesel is cracked into H2 and CO; as the fuel for the fuel cell, H2 may react with O2 in the air and generate electric energy; the unreacted H2 and CO enter into the catalytic burner for combustion, ensuring that the water is heated; thus, it not only provides H2 to the fuel cell, but also provides high-temperature water to the auto-thermal converter to produce H2; electric energy can be generated without burning diesel; since no NOx or particulate matters but CO2 is generated, the goal of ultra-low emission is achieved.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: June 5, 2018
    Assignee: Beijing University of Civil Engineering and Architecture
    Inventors: Yongfeng Liu, Hongbing Chen, Jianjun Qin, Pucheng Pei, Shengzhuo Yao
  • Publication number: 20180097815
    Abstract: An online system maintains characteristics for its users and may access characteristics of users maintained by a third party system. The online system may select content for a user of the third party system based on characteristics maintained by the third party system. If the third party system does not maintain a characteristic for its users, the generates a model predicting the characteristic for third party system users based on a set of online system users identified based on characteristics of third party system users. The online system clusters third party system users based on the predicted characteristic for other third party system users connected to the third party system user. Using verified characteristics for third party system users from a trusted third party system, the online system determines an accuracy of the predicted characteristic for third party system users in a cluster.
    Type: Application
    Filed: September 30, 2016
    Publication date: April 5, 2018
    Inventors: Weidong Wang, Erjie Ang, Yongfeng Liu, Liang Xu, Chaochao Cai
  • Patent number: 9766686
    Abstract: The embodiments disclosed herein provide a computing device that includes an upstream buffer and downstream data processing circuit that establish a data processing path where the data stored by upstream buffer is received and processed by the downstream data processing circuit. Using a buffer utilization characteristic of the upstream buffer such as its current availability (e.g., the buffer is 50% full) or an input data rate, the computing device adjusts the clock signal used to drive the downstream data processing circuit. For example, if the utilization of the upstream buffer is low, the number of clock edges in the clock signal may be reduced thereby reducing power consumption of the computing device. However, as the utilization of the buffer begins to increase, the computing device may increase the number of clock edges to prevent a buffer overflow.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: September 19, 2017
    Assignee: Cisco Technology, Inc.
    Inventors: Yi Wang, Ruikai Zhang, Yongfeng Liu, Zhou Yu
  • Patent number: 9727061
    Abstract: A method for controlling furnace pressure of a continuous annealing furnace is disclosed.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: August 8, 2017
    Assignee: Baoshan Iron & Steel Co., Ltd.
    Inventors: Yongfeng Liu, Huazhong Gu, Guoqiang Qian, Bin Yin, Dejian Wen, Hongxu Hei, Jun Zhang, Deyang Hu
  • Publication number: 20170146561
    Abstract: One embodiment provides a method, including: receiving, at electronic device, data from a wearable device; detecting that the received data relate to a sensor event of at least one sensor of the electronic device, the sensor event being generated and operable to effect an operation of the electronic device via an operating system of the electronic device; and effecting the operation of the electronic device based on the sensor event via the operating system. Other aspects are described and claimed.
    Type: Application
    Filed: March 29, 2016
    Publication date: May 25, 2017
    Inventors: Weifeng Zhuang, Yongfeng Liu
  • Publication number: 20170084943
    Abstract: The Invention discloses a self-supplied hydrogen fuel cell system and a working method thereof, the system comprising a diesel tank, a gas separator, a fuel cell, a low-temperature separation reactor, a high-temperature separation reactor, an auto-thermal reformer, a water tank and a catalytic burner; With the high-temperature separation reactor, the low-temperature separation reactor and the auto-thermal reformer, diesel is cracked into H2 and CO; as the fuel for the fuel cell, H2 may react with O2 in the air and generate electric energy; the unreacted H2 and CO enter into the catalytic burner for combustion, ensuring that the water is heated; thus, it not only provides H2 to the fuel cell, but also provides high-temperature water to the auto-thermal converter to produce H2; electric energy can be generated without burning diesel; since no NOx or particulate matters but CO2 is generated, the goal of ultra-low emission is achieved.
    Type: Application
    Filed: December 1, 2016
    Publication date: March 23, 2017
    Inventors: Yongfeng Liu, Hongbing Chen, Jianjun Qin, Pucheng Pei, Shengzhuo Yao
  • Patent number: 9580316
    Abstract: A method for preparing metal complex hydride nanorods, comprising the steps of: (1) preparing one-dimensional coordination polymers by mixing metal complex hydrides with organic solvents and subsequent drying; (2) preparing coordination polymer nanostructures by mechanical milling the one-dimensional coordination polymers that obtained from step (1), in which the one-dimensional coordination polymers are vaporized and then deposited onto the substrate; (3) preparing metal complex hydride nanorods by removing the organic ligands from the coordination polymer nanostructures that obtained from step (2). This method is simple and feasible, and exhibits excellent generality. Moreover, the purity of the metal complex hydrides nanostructures is high.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: February 28, 2017
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Yongfeng Liu, Yuepeng Pang, Hongge Pan, Mingxia Gao
  • Publication number: 20160244329
    Abstract: A method for preparing metal complex hydride nanorods, comprising the steps of: (1) preparing one-dimensional coordination polymers by mixing metal complex hydrides with organic solvents and subsequent drying; (2) preparing coordination polymer nanostructures by mechanical milling the one-dimensional coordination polymers that obtained from step (1), in which the one-dimensional coordination polymers are vaporized and then deposited onto the substrate; (3) preparing metal complex hydride nanorods by removing the organic ligands from the coordination polymer nanostructures that obtained from step (2). This method is simple and feasible, and exhibits excellent generality. Moreover, the purity of the metal complex hydrides nanostructures is high.
    Type: Application
    Filed: October 30, 2013
    Publication date: August 25, 2016
    Inventors: YONGFENG LIU, YUEPENG PANG, HONGGE PAN, MINGXIA GAO
  • Patent number: 9383745
    Abstract: A method for controlling furnace temperature of a fired heating furnace is disclosed, comprising: measuring furnace temperatures to obtain furnace temperature feedback values; calculating the differences between furnace temperature setting values and the furnace temperature feedback values as discrepancy values DV1, in accordance with the furnace temperature feedback values and the furnace temperature setting value; calculating the differences between the furnace temperature setting values and the furnace temperature feedback values in a unit time, i.e.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: July 5, 2016
    Assignee: Baoshan Iron & Steel Co., Ltd.
    Inventors: Yongfeng Liu, Guoqiang Qian, Huazhong Gu, Rong Chen, Zhicheng Wang, Chunguo Lv, Dejian Wen, Peili Zhang
  • Patent number: 9330265
    Abstract: Disclosed are a method for component access control and electronic device. The method comprises: acquiring a target component list corresponding to the first application, which list includes at least one target component required by the first application, with the at least one target component belonging to at least one basic component; after a component selection command is received, generating information about those basic components accessible by the first application from the target component list according to the component selection command; and storing the information about those basic components accessible by the first application.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: May 3, 2016
    Assignees: BEIJING LENOVO SOFTWARE LTD., LENOVO (BEIJING) CO., LTD.
    Inventor: Yongfeng Liu
  • Patent number: 9323908
    Abstract: Embodiments of the present disclosure provide an authentication method and an electronic device. The method includes: generating by a first device an authentication request if a predetermined condition exists between the first device and a second device, when the first device is in a locking state, wherein the first device has the locking state and a non-locking state; receiving by the first device authentication information, the authentication information being input in response to the authentication request; and authenticating the second device using the authentication information. Through the present disclosure, others cannot directly damage or copy data in the first device in a connection manner such as using a data line even if they get hold of the device, as long as the first device is in the locking state. Thus, the security of the data in the first device is ensured.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: April 26, 2016
    Assignees: Beijing Lenovo Software Ltd., Lenovo (Beijing) Limited
    Inventors: Yongfeng Liu, Jiangtao Shen, Jun Li
  • Patent number: 9176765
    Abstract: The present invention provides a virtual machine system and a method for sharing a graphics card amongst virtual machines. A VMM of the virtual machine system is provided with a resource-converting module, which converts data exchanged between a graphics card drive module of a GOS in the foreground and the graphics card based on a resource-converting table, and also intercepts accesses to the real graphics card by a GOS in the background and then responds to its operations on the graphics card. The VMM is further provided with a switching module, which alters a state of a VM based on a command for switching the VM, saves a graphics card state before the VM is switched to the background and restores the stored graphics card state to the graphics card when the VM is switched back to the foreground. Further, the GOSs each comprise a graphics card drive module corresponding to the real graphics card for accessing the real graphics card.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: November 3, 2015
    Assignee: Lenovo (Beijing) Limited
    Inventors: Jun Chen, Yongfeng Liu, Chunmei Liu, Ke Ke
  • Publication number: 20150198967
    Abstract: The embodiments disclosed herein provide a computing device that includes an upstream buffer and downstream data processing circuit that establish a data processing path where the data stored by upstream buffer is received and processed by the downstream data processing circuit. Using a buffer utilization characteristic of the upstream buffer such as its current availability (e.g., the buffer is 50% full) or an input data rate, the computing device adjusts the clock signal used to drive the downstream data processing circuit. For example, if the utilization of the upstream buffer is low, the number of clock edges in the clock signal may be reduced thereby reducing power consumption of the computing device. However, as the utilization of the buffer begins to increase, the computing device may increase the number of clock edges to prevent a buffer overflow.
    Type: Application
    Filed: January 14, 2014
    Publication date: July 16, 2015
    Applicant: Cisco Technology, Inc.
    Inventors: YI WANG, Ruikai ZHANG, Yongfeng LIU, Zhou YU
  • Publication number: 20150156087
    Abstract: A method for acquiring monitoring data and a system thereof, a task distribution server and an agent are disclosed. The method for acquiring the monitoring data includes: receiving registrations of the agent and a gathering device by the task distribution server; receiving, by the task distribution server, an acquiring instruction sent by the gathering device; and sending, by the task distribution server, the acquiring instruction to the agent to instruct the agent to acquire the monitoring data. Hence, a flexibility in acquiring the monitoring data is improved.
    Type: Application
    Filed: February 5, 2015
    Publication date: June 4, 2015
    Applicant: Tencent Technology (Shenzhen) Company Limited
    Inventor: Yongfeng LIU
  • Patent number: 8924962
    Abstract: The present invention provides a method and a computer system for sharing a graphics card among multiple Operation Systems (OSs). The method includes: detecting a first GOS to be displayed, the first GOS being a primary GOS or one of at least one secondary GOS; determining the kind of the first GOS, so that different display control register bank(s) and graphics card memory resources are allocated to the first GOS depending on whether it is a primary GOS or a secondary GOS; controlling the display control register bank(s) allocated to the first GOS to connect to a display output port; obtaining display contents based on the graphics card memory resources allocated to the first GOS; and displaying the display contents based on display mode parameters in the display control register bank(s) connected to the display output port. According to the present invention, it is possible to share the graphics card among the multiple OSs without modifying the drivers of the primary GOS.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: December 30, 2014
    Assignees: Beijing Lenovo Software Ltd., Lenovo (Beijing) Limited
    Inventors: Bibo Wang, Yongfeng Liu, Chunmei Liu, Jun Chen
  • Publication number: 20140364994
    Abstract: A method for controlling furnace temperature of a fired heating furnace is disclosed, comprising: measuring furnace temperatures to obtain furnace temperature feedback values; calculating the differences between furnace temperature setting values and the furnace temperature feedback values as discrepancy values DV1, in accordance with the furnace temperature feedback values and the furnace temperature setting value; calculating the differences between the furnace temperature setting values and the furnace temperature feedback values in a unit time, i.e.
    Type: Application
    Filed: April 27, 2011
    Publication date: December 11, 2014
    Applicant: Baoshan Iron & Steel Co., Ltd.
    Inventors: Yongfeng Liu, Guoqiang Qian, Huazhong Gu, Rong Chen, Zhicheng Wang, Chunguo Lv, Dejian Wen, Peili Zhang
  • Patent number: 8717376
    Abstract: The present invention provides a method for sharing a graphics card among multiple Operation Systems (OSs) and a computer system. The method comprises: detecting a first GOS to be displayed, the first GOS being one of at least two GOSs; calling a correspondence table to determine a first display control register bank corresponding to the first GOS, the first display control register bank including display mode parameters therein; controlling the first display control register bank to connect to a display output port; and displaying the first GOS based on the display mode parameters. According to the inventive method and computer system, it is possible to achieve sharing of the graphics card among the multiple OSs and quick display of the GOS to be displayed, without simulating registers of the graphics card.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: May 6, 2014
    Assignees: Lenovo (Beijing) Limited, Beijing Lenovo Software Ltd.
    Inventors: Bibo Wang, Yongfeng Liu, Chunmei Liu, Jun Chen
  • Publication number: 20130304263
    Abstract: A method for controlling furnace pressure of a continuous annealing furnace is disclosed.
    Type: Application
    Filed: April 14, 2011
    Publication date: November 14, 2013
    Inventors: Yongfeng Liu, Huazhong Gu, Guoqiang Qian, Bin Yin, Dejian Wen, Hongxu Hei, Jun Zhang