Patents by Inventor Junfeng Yu

Junfeng Yu 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).

  • Publication number: 20200027230
    Abstract: A method for controlling a movable object includes obtaining current location information of an obstacle while the movable object tracks a target, and determining whether a location of the obstacle corresponds to a reactive region relative to the movable object based on the current location information of the obstacle. In response to determining that the location of the obstacle corresponds to the reactive region, one or more movement characteristics of the movable object is adjusted in a reactive manner to prevent the movable object from colliding with the obstacle. In response to determining that the location of the obstacle does not correspond to the reactive region, the one or more movement characteristics of the movable object is adjusted in a proactive manner to maintain a distance between the movable object and the obstacle to be larger than a predefined distance.
    Type: Application
    Filed: August 28, 2018
    Publication date: January 23, 2020
    Inventors: Cong ZHAO, Shaojie SHEN, Jie QIAN, Xuyang FENG, Minjian PANG, Junfeng YU
  • Publication number: 20200006848
    Abstract: Base station antennas are provided herein. A base station antenna includes first and second wiper phase shifters. In some embodiments, the base station antenna includes first and second wiper supports that are on the first and second wiper phase shifters, respectively, and the first wiper support includes a portion that is beside and interlocked with a portion of the second wiper support. In some embodiments, the base station antenna includes a first linkage that is on the second wiper phase shifter, and a second linkage that intersects, and is coupled to, the first linkage and is configured to adjust the first and second wiper phase shifters via the first linkage. In some embodiments, the first and second wiper phase shifters are a mirror-image pair of wiper phase shifters. Related methods of operating a base station antenna are also provided.
    Type: Application
    Filed: June 24, 2019
    Publication date: January 2, 2020
    Inventors: Guomin Ding, Martin Zimmerman, Junfeng Yu, Haifei Qin
  • Publication number: 20190392597
    Abstract: An imaging method includes determining a target position in an imaging frame of an image capturing mechanism connected with a positioning mechanism, outputting a capturing instruction to control the image capturing mechanism to capture a scene including a human face after the target position is determined, detecting the human face from the captured scene, and outputting a control instruction to position the detected human face at the target position by moving the positioning mechanism to move the image capturing mechanism.
    Type: Application
    Filed: September 9, 2019
    Publication date: December 26, 2019
    Inventors: Xuyang FENG, Cong ZHAO, Junfeng YU, Jie QIAN
  • Publication number: 20190326663
    Abstract: A linkage device of a linkage mechanism for a base station antenna is integrally formed with: a body; a flange extending outwardly from the body; a mounting portion suspended from the body and configured to mount the linkage device into the base station antenna, and a coupling portion disposed on the body and configured to couple the linkage device to a drive mechanism of the base station antenna, wherein the flange is formed with a guide configured to cause operation of a phase shifter of the base station antenna.
    Type: Application
    Filed: April 2, 2019
    Publication date: October 24, 2019
    Inventors: Maosheng Liu, ZhaoHui Liu, PuLiang Tang, Ruixin Su, Jun Sun, Junfeng Yu
  • Patent number: 10438568
    Abstract: A display method is applied in a first electronic device and a second electronic device, wherein, the first electronic device includes a first display unit having a plurality of edges, and the second electronic device includes a second display unit also having a plurality of edges. The method includes the first electronic device and the second electronic device are tiled and placed in alignment, with a first edge as a first tiling shaft; a predetermined display content is displayed on the first display unit and the second display unit after tiling; when the first electronic device and/or the second electronic device is/are changed in position and re-tiled, a second edge is re-determined as a second tiling shaft; and according to the second tiling shaft, a third display content is displayed on the first display unit, and a fourth display content is displayed on the second display unit.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: October 8, 2019
    Assignee: LENOVO (BEIJING) CO., LTD.
    Inventors: Qian Zhao, Hao Chen, Junfeng Yu, Yuru Jin, Haibin Ke, Danfeng Zhang, Bing Xie
  • Patent number: 10368804
    Abstract: A method of detecting a level of fluid accumulation in an internal organ of a subject is proposed, as well as a system for carrying out the method. The method comprises: providing at least one classifier trained to distinguish between two or more levels of fluid accumulation; acquiring an audio signal (110) generated by said internal organ; and processing, using at least one processor (134), said audio signal (110) by: performing feature extraction to generate at least one feature vector from the audio signal; and assigning a fluid level from the two or more levels to the audio signal by passing the at least one feature vector to the at least one classifier.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: August 6, 2019
    Assignee: NANYANG TECHNOLOGICAL UNIVERSITY
    Inventors: Wee Ser, Feng Yang, Junfeng Yu
  • Publication number: 20190212742
    Abstract: A control method includes determining a relative relationship between a tracked object and a tracking device. The control method also includes acquiring motion information of the tracked object. The control method further includes based on the motion information and the relative relationship, controlling movement of a carrying device that carries the tracking device to enable the tracking device to track the tracked object.
    Type: Application
    Filed: March 18, 2019
    Publication date: July 11, 2019
    Inventors: Jie QIAN, Cong ZHAO, Junfeng YU, Xuyang FENG, Ang LIU
  • Publication number: 20190028432
    Abstract: The present invention relates to a shared domain-name registration method and system for unified scheduling and management. A unified authentication unit receives registration request for domain-name registration from domain-name registration service providers, and verifies the registration requests. After verification is successful, a registration messages are sent to a corresponding message queue in a forwarding control unit. The forwarding control unit provides the message queue to the domain-name registration service providers and delivers the registration messages in the message queue to a registration processing unit for processing, wherein the domain-name registration is implemented. A scheduling and management unit monitors request flows from the domain-name registration service providers and the processing status of the registration processing units.
    Type: Application
    Filed: December 23, 2016
    Publication date: January 24, 2019
    Inventors: Xiaodong Li, Yukun Liu, Yuedong Zhang, Junfeng Yu, Feng Leng
  • Publication number: 20190011922
    Abstract: A method includes obtaining an image frame captured by an imaging device carried by an unmanned vehicle and containing the target object, extracting one or more features of a target object from a region selected by a user on the image frame, and determining whether the target object is a predetermined recognizable object type based on a comparison of the one or more features with one or more characteristics associated with the predetermined recognizable object type. If the target object is the predetermined recognizable object type, tracking functions associated with the predetermined recognizable object type are initiated. IF the target object does not belong to the predetermined recognizable object type, tracking functions associated with a general object type are initiated.
    Type: Application
    Filed: August 29, 2018
    Publication date: January 10, 2019
    Inventors: Xuyang FENG, Cong ZHAO, Jie QIAN, Junfeng YU
  • Publication number: 20180362185
    Abstract: A method for controlling a movable object includes receiving a user input indicative of a command to adjust a perception of a target while tracking the target, determining a subsequent perception of the target based on the user input, and generating one or more control signals to move the movable object based on the subsequent perception of the target.
    Type: Application
    Filed: August 28, 2018
    Publication date: December 20, 2018
    Inventors: Jie QIAN, Cong ZHAO, You ZHOU, Xuyang FENG, Junfeng YU
  • Publication number: 20180269563
    Abstract: A small base station antenna is disclosed, said small base station antenna having a length less than 0.4 m, and comprising a carriage, an antenna core assembly and an antenna shell, said small base station antenna capable of being mounted to a holding pole at one point through a mounting rack, characterized in that said small base station antenna further comprises a shock absorption part disposed between the carriage and the antenna shell so as to reduce the vibration frequency transmitted into the antenna core assembly. A method for reducing vibration frequency transmission in a small base station antenna is further disclosed. The present invention addresses the issue that a small base station antenna operates normally under high frequency vibration, such that the small base station antenna can pass the sinusoidal vibration test and random vibration test required by the industry, and can even pass the stricter impact test.
    Type: Application
    Filed: August 5, 2015
    Publication date: September 20, 2018
    Inventors: Hongjun QIAN, Yongzhong LI, Junfeng YU
  • Patent number: 10031159
    Abstract: A test fixture for testing performance of a trimmed cable and/or antenna components. The test fixture may be connected without the use of solder allowing for accurate testing or tuning of one or more the antenna components.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: July 24, 2018
    Assignee: CommScope Technologies LLC
    Inventors: Jinchun He, HuaFeng Su, Qiang Wang, Junfeng Yu, Peter J. Bisiules
  • Publication number: 20170052215
    Abstract: A test fixture for testing performance of a trimmed cable and/or antenna components. The test fixture may be connected without the use of solder allowing for accurate testing or tuning of one or more the antenna components.
    Type: Application
    Filed: August 19, 2016
    Publication date: February 23, 2017
    Inventors: Jinchun He, HuaFeng Su, Qiang Wang, Junfeng Yu, Peter J. Bisiules
  • Patent number: 9575710
    Abstract: An electronic device, an information processing method and a method for determining display region are described and they include obtaining location relationship information of each slave electronic device with respect to the master electronic device, when connecting with at least one slave electronic device; obtaining a first size of the first display screen of the master electronic device, and a second size of the second display screen of each slave electronic device; determining a display region consisting of the first display screen and the second display screen, based on the location relationship information, the first size and the second size; and determining a first effective display region of the first display screen and a second effective display region of the second display screen which form an effective display region, based on a predetermined condition.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: February 21, 2017
    Assignee: LENOVO (BEIJING) CO., LTD.
    Inventors: Junfeng Yu, Haibin Ke, Yuru Jin, Danfeng Zhang, Bing Xie
  • Publication number: 20160218411
    Abstract: A tilt indicator constructed from a flexible material allows the tilt indicator to bend without breaking when subjected to bending loads. The tilt indicator may take the form of an elongated rod with indicia imprinted thereon. The indicia may be indicative of the degree of tilt of an antenna to which the tilt indicator is attached.
    Type: Application
    Filed: August 13, 2015
    Publication date: July 28, 2016
    Inventors: Junfeng YU, Honghui CHEN, Haidan TANG, Zhaohui LIU, Jonathon C. VEIHL
  • Publication number: 20150190091
    Abstract: A method of detecting a level of fluid accumulation in an internal organ of a subject is proposed, as well as a system for carrying out the method. The method comprises: providing at least one classifier trained to distinguish between two or more levels of fluid accumulation; acquiring an audio signal (110) generated by said internal organ; and processing, using at least one processor (134), said audio signal (110) by: performing feature extraction to generate at least one feature vector from the audio signal; and assigning a fluid level from the two or more levels to the audio signal by passing the at least one feature vector to the at least one classifier.
    Type: Application
    Filed: August 14, 2013
    Publication date: July 9, 2015
    Inventors: Wee Ser, Feng Yang, Junfeng Yu
  • Publication number: 20130241954
    Abstract: An electronic device, an information processing method and a method for determining display region are described and they include obtaining location relationship information of each slave electronic device with respect to the master electronic device, when connecting with at least one slave electronic device; obtaining a first size of the first display screen of the master electronic device, and a second size of the second display screen of each slave electronic device; determining a display region consisting of the first display screen and the second display screen, based on the location relationship information, the first size and the second size; and determining a first effective display region of the first display screen and a second effective display region of the second display screen which form an effective display region, based on a predetermined condition.
    Type: Application
    Filed: March 18, 2013
    Publication date: September 19, 2013
    Applicant: LENOVO (BEIJING) CO., LTD.
    Inventors: Junfeng Yu, Haibin Ke, Yuru Jin, Danfeng Zhang, Bing Xie