Patents by Inventor Qiang Yan

Qiang Yan 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: 20150081796
    Abstract: Embodiments of the present invention relate to a method, an apparatus and a system for transmitting a media stream. The method is executed by an access terminal, includes: establishing a real-time collaboration channel between the access terminal and a network computer; sending through a first VDI channel to the network computer an operation instruction input by a user; receiving a real-time collaboration message that is sent through the real-time collaboration channel by the network computer; performing, through the network computer, media negotiation with a communication device, so as to determine a media attribute parameter that is used to transmit a media stream between the access terminal and the communication device; and transmitting, by the access terminal, a media stream mutually with the communication device according to the media attribute parameter determined through the media negotiation.
    Type: Application
    Filed: November 25, 2014
    Publication date: March 19, 2015
    Inventors: Mingyuan XU, Qiang YAN
  • Patent number: 8885649
    Abstract: A method, an apparatus, and a system for implementing private network traversal are disclosed, where a message exchanged between a TURN server in a public network and a communications terminal in a local area network is transmitted through a pre-established websocket connection. The method includes: receiving, by the TURN server, a resource allocate request sent by the communications terminal, allocating a relay address and a resource port for the communications terminal; receiving a TURN data packet sent by the communications terminal, where the TURN data packet includes communication data and a multiplexing identifier, and sending the communication data to the remote node through the communications channel identified by the multiplexing identifier, thereby solving a problem in an existing TURN technology that in case that a firewall only opening an HTTP port is deployed, communication between a communications terminal in a local area network and a remote node cannot be implemented.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: November 11, 2014
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xin Chen, Qiang Yan
  • Publication number: 20140318757
    Abstract: An exemplary heat sink includes a plurality of fins interconnected together. Each of the fins includes a main body and at least an engaging portion extending outwardly from the main body. The engaging portions of every two adjacent fins are interlocked with each other. The engaging portion includes a base extending outwardly from the main body, an engaging groove defined at a lateral side of the base, and an inserting rib protruding outwardly from another lateral side of the base opposite to the engaging groove. In the two adjacent fins, the inserting rib of the engaging portion of one fin is fitly inserted into the engaging groove of the engaging portion of another fin.
    Type: Application
    Filed: June 11, 2013
    Publication date: October 30, 2014
    Inventors: QIANG YAN, JI-YUN QIN
  • Publication number: 20140226664
    Abstract: A method, an apparatus, and a system for implementing private network traversal are disclosed, where a message exchanged between a TURN server in a public network and a communications terminal in a local area network is transmitted through a pre-established websocket connection. The method includes: receiving, by the TURN server, a resource allocate request sent by the communications terminal, allocating a relay address and a resource port for the communications terminal; receiving a TURN data packet sent by the communications terminal, where the TURN data packet includes communication data and a multiplexing identifier, and sending the communication data to the remote node through the communications channel identified by the multiplexing identifier, thereby solving a problem in an existing TURN technology that in case that a firewall only opening an HTTP port is deployed, communication between a communications terminal in a local area network and a remote node cannot be implemented.
    Type: Application
    Filed: December 23, 2013
    Publication date: August 14, 2014
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Xin CHEN, Qiang YAN
  • Patent number: 8608449
    Abstract: A support for a large vertical axis wind turbine including a tower frame, a platform, a vertical central axis, and a vertical axis windmill including a plurality of blades and supporting arms. The platform is disposed on the tower frame for installing and fixing a generator. The vertical central axis and the vertical axis windmill are supported by the tower frame. The tower frame is a truss structure and includes at least three sub-tower frames which are in parallel with each other and form a regular polygon from top view. The sub-tower frames are hollow tubes. The ratio of a diameter of the vertical axis windmill to a distance between two adjacent sub-tower frames is between 2.5 and 6. The ratio of the diameter of the vertical axis windmill to a height of the tower frame is between 3 and 0.5.
    Type: Grant
    Filed: December 5, 2010
    Date of Patent: December 17, 2013
    Inventor: Qiang Yan
  • Patent number: 8567038
    Abstract: The invention relates to a vertical axis wind turbine, and in particular to an apparatus and method for transporting the vertical axis wind turbine. The method for transporting the vertical axis wind turbine, including the steps of: employing an apparatus to be a box or frame; situating a generator horizontally in the apparatus; fixing an upper flange and lower flange to a vertical shaft; fixing the base of the generator on the corresponding surface of the apparatus through holes at the base of the generator; and supporting the other end of the vertical shaft by a supporting object.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: October 29, 2013
    Inventors: Qiang Yan, Yihui Shen, Dong Zhang, Chaoqi Jiang, Haifeng Niu
  • Publication number: 20130264042
    Abstract: A heat dissipation device includes a first heat sink and a second heat sink. The first heat sink includes a first heat spreader and a plurality of fins. The first heat spreader includes a receiving structure having a first tooth and two second teeth. The first tooth is located between the second teeth to define two first grooves between the first tooth and the second teeth. The second heat sink includes a second heat spreader and a plurality of fins. The second heat spreader includes a protruding structure having two first inserting portions. When the second heat sink is assembled to the first heat sink, the each of the first inserting portions is inserted in the first groove of the first heat spreader and deformed to be firmly engaged in the first groove and clasped by the first tooth.
    Type: Application
    Filed: June 27, 2012
    Publication date: October 10, 2013
    Applicants: FOXCONN TECHNOLOGY CO., LTD., CHAMP TECH OPTICAL (FOSHAN) CORPORATION
    Inventors: JI-YUN QIN, QIANG YAN
  • Patent number: 8496433
    Abstract: A wind mill structure of a lift-type vertical axis wind turbine. The lift-type vertical axis wind turbine includes a vertical shaft and the wind mill includes a plurality of blades and supporting arms. The supporting arms hold the blades, and the blades are connected to the vertical shaft via the supporting arms. A setting angle, formed by a chord of the blades and a tangent line that goes through the center of the blades, ranges from ?12° to 12°. An angle, formed by the chord of the blade and the rotatable supporting arm, ranges from 7° to 100°. The wind mill can maintain relatively stable rotation speeds under wind speeds exceeding the rated wind speed by adjusting the angle of the supporting arms, thereby ensuring stable output from the vertical axis wind turbine.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: July 30, 2013
    Inventors: Qiang Yan, Yihui Shen, Dong Zhang, Chaoqi Jiang, Haifeng Niu
  • Publication number: 20130112387
    Abstract: A heat dissipation device includes a first heat sink and a second heat sink connected to each other. Each of the first and second heat sinks includes a base and a plurality of fins extending from the base. The base of the first heat sink forms a rib on a lateral face thereof, and the base of the second heat sink defines a groove in a lateral face thereof. The rib is received in the groove to connect the first heat sink with the second heat sink.
    Type: Application
    Filed: December 28, 2011
    Publication date: May 9, 2013
    Applicants: FOXCONN TECHNOLOGY CO., LTD., FU ZHUN PRECISION INDUSTRY (SHEN ZHEN) CO., LTD.
    Inventors: JI-YUN QIN, JIN-SONG FENG, QIANG YAN
  • Patent number: 8390142
    Abstract: A vertical axis wind turbine including: a vertical axis wind mill having a vertical shaft and a generator having a generator rotor shaft, wherein the vertical shaft of the wind mill share the same shaft with the generator rotor shaft. This arrangement simplifies the structure and increases the stability, reliability, and service lifetime of vertical axis wind turbines by making on-site assembly easy and cutting the on-site workload and cost, without undermining the wind resistance capability and safety prompting wider application of vertical axis wind turbines.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: March 5, 2013
    Inventors: Qiang Yan, Yihui Shen, Dong Zhang, Chaoqi Jiang, Haifeng Niu
  • Patent number: 8322035
    Abstract: A vertical axis wind turbine comprising: a plurality of support arms (2) connected with a vertical axis (1), a wind rotor comprising a plurality of blades (3) connected to the blade support arms (2), the wind rotor having a rotation radius and the blades (3) having a chord length; wherein an airfoil of the blade is an asymmetrical camber airfoil, the convex surface (31) of the blade (3) faces vertical axis (1), and a ratio of the rotation radius of the wind rotor (R) to the chord length of the blade (L) is between about 1.8 and about 4.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: December 4, 2012
    Inventor: Qiang Yan
  • Patent number: 8272840
    Abstract: A blade support limb structure of a vertical axis wind power generator includes a fixed support limb (1) and a rotatable support limb (2), one end (21) of the rotatable support limb is connected with one end (22) of the fixed support limb and the rotatable support limb may rotate around it. The structure keeps a wind wheel at stable rotation speed in the case the environmental wind speed exceeds the rated wind speed, thereby to ensure that vertical axis wind power generator outputs constant power. The structure solves a problem of constant power output of the vertical axis wind power generator from hundreds watts to thousands watts, so its applications are wide.
    Type: Grant
    Filed: April 13, 2009
    Date of Patent: September 25, 2012
    Inventor: Qiang Yan
  • Publication number: 20120003092
    Abstract: A wind mill structure of a lift-type vertical axis wind turbine. The lift-type vertical axis wind turbine includes a vertical shaft and the wind mill includes a plurality of blades and supporting arms. The supporting arms hold the blades, and the blades are connected to the vertical shaft via the supporting arms. A setting angle, formed by a chord of the blades and a tangent line that goes through the center of the blades, ranges from ?12° to 12°. An angle, formed by the chord of the blade and the rotatable supporting arm, ranges from 7° to 100°. The wind mill can maintain relatively stable rotation speeds under wind speeds exceeding the rated wind speed by adjusting the angle of the supporting arms, thereby ensuring stable output from the vertical axis wind turbine.
    Type: Application
    Filed: September 9, 2011
    Publication date: January 5, 2012
    Inventors: Qiang YAN, Yihui SHEN, Dong ZHANG, Chaoqi JIANG, Haifeng NIU
  • Publication number: 20110272224
    Abstract: A brake system for a vertical axis wind turbine including a brake device (3) that is connected with the rotor shaft of generator (1) or vertical shaft (2), brake shoes or brake calipers (4) which are controller by the electromagnetic actuator (11), a friction lining (6), as well as a safety pin (5) and a safety pin electromagnetic actuator (22) that controls the safety pin (5).The brake device (3) is a brake drum or a brake disc. The brake system of the invention is able to reduce the vibration of the vertical axis wind turbine in strong wind conditions effectively without the need of reinforcing the wind turbine's ability to withstand strong winds, thus increasing the safety and reliability of the vertical axis wind turbine. A method for braking a vertical axis wind turbine is also provided.
    Type: Application
    Filed: July 21, 2011
    Publication date: November 10, 2011
    Inventors: Qiang YAN, Yihui SHEN, Dong ZHANG, Chaoqi JIANG, Haifeng NIU
  • Publication number: 20110248510
    Abstract: A vertical axis wind turbine including: a vertical axis wind mill having a vertical shaft and a generator having a generator rotor shaft, wherein the vertical shaft of the wind mill share the same shaft with the generator rotor shaft. This arrangement simplifies the structure and increases the stability, reliability, and service lifetime of vertical axis wind turbines by making on-site assembly easy and cutting the on-site workload and cost, without undermining the wind resistance capability and safety prompting wider application of vertical axis wind turbines.
    Type: Application
    Filed: June 20, 2011
    Publication date: October 13, 2011
    Inventors: Qiang YAN, Yihui SHEN, Dong ZHANG, Chaoqi JIANG, Haifeng NIU
  • Publication number: 20110239460
    Abstract: The invention relates to a vertical axis wind turbine, and in particular to an apparatus and method for transporting the vertical axis wind turbine. The method for transporting the vertical axis wind turbine, including the steps of: employing an apparatus to be a box or frame; situating a generator horizontally in the apparatus; fixing an upper flange and lower flange to a vertical shaft; fixing the base of the generator on the corresponding surface of the apparatus through holes at the base of the generator; and supporting the other end of the vertical shaft by a supporting object.
    Type: Application
    Filed: June 20, 2011
    Publication date: October 6, 2011
    Inventors: Qiang YAN, Yihui SHEN, Dong ZHANG, Chaoqi JIANG, Haifeng NIU
  • Patent number: 7967569
    Abstract: This invention relates to a vertical shaft wind turbine, and particularly to an installation method of blades that can effectively improve the efficiency of a vertical shaft wind turbine. A supporting plane is connected to vertical shaft and a blade is installed on supporting plane. The airfoil of the blade is an asymmetrical camber airfoil. The convex surface of blade is installed facing the vertical shaft. The blade rotary angle is in the range of 0-15 degrees. This invention represents a remarkable progress in the field of wind power generation and is applicable industrially.
    Type: Grant
    Filed: September 22, 2008
    Date of Patent: June 28, 2011
    Inventor: Qiang Yan
  • Publication number: 20110076154
    Abstract: A support for a large vertical axis wind turbine including a tower frame, a platform, a vertical central axis, and a vertical axis windmill including a plurality of blades and supporting arms. The platform is disposed on the tower frame for installing and fixing a generator. The vertical central axis and the vertical axis windmill are supported by the tower frame. The tower frame is a truss structure and includes at least three sub-tower frames which are in parallel with each other and form a regular polygon from top view. The sub-tower frames are a hollow truss structure. The ratio of a diameter of the vertical axis windmill to a distance between two adjacent sub-tower frames is between 2.5 and 6. The ratio of the diameter of the vertical axis windmill to a height of the tower frame is between 3 and 0.5.
    Type: Application
    Filed: December 5, 2010
    Publication date: March 31, 2011
    Inventor: Qiang YAN
  • Patent number: 7780411
    Abstract: A device for adjusting an angle-of-attack (?) of blades in a lift-type vertical axis turbine comprising a vertical rotating axis, a rotatable cantilever support wing fixed on the vertical rotating axis, a wind rotor comprising a plurality of blades mounted on the cantilever support wing, at least one cam disposed along an axial direction of the vertical rotating axis, the axial direction of the cam being parallel to the rotating axis, and for any point in a contour line of the cam, the angle of attack ? being set according to the following formula: ?=???, wherein ? is the angle of attack; ? is an azimuth angle; ? is a rotating angle for blades; and ?, ?, and ? are preset values.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: August 24, 2010
    Inventor: Qiang Yan
  • Publication number: 20090196753
    Abstract: A blade support limb structure of vertical axis wind power generator includes a fixed support limb (1) and a rotatable support limb (2), one end (21) of the rotatable support limb is connected with one end (22) of the fixed support limb and the rotatable support limb may rotate around it. The structure keeps a wind wheel at stable rotation speed in the case of environmental wind speed exceeds rated wind speed, thereby to ensure that vertical axis wind power generator outputs constant power. The structure solves a problem of constant power output of vertical axis wind power generator from hundreds watt to thousands watt, so its applications are wide.
    Type: Application
    Filed: April 13, 2009
    Publication date: August 6, 2009
    Inventor: Qiang YAN