Patents by Inventor Xun Chen

Xun Chen 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: 20190176956
    Abstract: A detachable multiaxial aircraft is related. The aircraft includes a fuselage and a number of lift arm assemblies. The lift arm assembly includes a landing chassis, an electric motor mounted on the landing chassis, and a propeller fixed on the electric motor. The lift arm assembly further includes a shell located on the landing chassis and surrounding the propeller. The fuselage includes a first connector, and the shell includes a second connector. The lift arm assembly is detachably connected to the fuselage by the first connector and the second connector.
    Type: Application
    Filed: January 31, 2018
    Publication date: June 13, 2019
    Inventor: HAN-XUN CHEN
  • Patent number: 10320745
    Abstract: An apparatus and method of an attachment device for interfacing with an on-board diagnostic system of a vehicle is provided. The device includes an application processor configured to receive input from a terminal, control processing of the input by the on-board diagnostic system, transmit a result of the processing of the input by the on-board diagnostic system to the terminal, and a secure element interposed in the communication path between the application processor and the on-board diagnostic system, the secure element configured to filter the input of an on-board diagnostic operation that is untrusted.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: June 11, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Peng Ning, Stephen E McLaughlin, Michael C Grace, Ahmed M Azab, Rohan Bhutkar, Wenbo Shen, Xun Chen, Yong Choi, Ken Chen
  • Patent number: 10247642
    Abstract: A device comprises a contact reaction chamber, a circulating water inlet, a clear water basin, a circulating pump, a circulating water outlet, a solid phase extractant collecting tank, a magnetic holder, an electromagnet, a solid-liquid separation area, a drain valve, a wall sprinkling water inlet, and a wall sprinkling pipe, wherein, the contact reaction chamber is in a conical shape, and utilizes hydraulic power to perform stir to ensure no dead corner exists during contact stir; the obconical solid-liquid separation area increases the action area between a magnetic solid phase extractant and the electromagnet; the solid phase extractant collecting tank is in a downwards protruding dish shape to prevent the solid phase extractant from losing.
    Type: Grant
    Filed: June 10, 2017
    Date of Patent: April 2, 2019
    Assignee: NANJING UNIVERSITY
    Inventors: Qing Zhou, Wei Wang, Aimin Li, Qingqing Zhao, Minglu Wang, Rui Gao, Xiaowen Ma, Peng Shi, Xun Chen
  • Publication number: 20190094714
    Abstract: The present invention also discloses a multi-DOF (Degree of Freedom) large-stroke high-precision motion platform system using the guide mechanism. A large load-bearing guide mechanism comprises: a rigid frame for generating a large-stroke displacement to realize high-speed motion; a core motion platform connected with a motion portion of a non-contact actuator, connected with the rigid frame by a primary flexible hinge group and a secondary flexible hinge group, and used for generating a small-stroke precise displacement by elastic deformation of the flexible hinge groups under driving of the actuator.
    Type: Application
    Filed: December 24, 2017
    Publication date: March 28, 2019
    Inventors: ZHIJUN YANG, QIAN LI, YOUDUN BAI, XIN CHEN, XUN CHEN, YAOBIN HE, HAN SUN, GUANXIN HUANG, BAISHENG WU
  • Patent number: 10206018
    Abstract: A transmission method and system for an optical burst transport network are disclosed in the present document. The method includes: acquiring a topology of a mesh OBTN network, and generating one or more logical sub-networks according to the topology of the mesh OBTN network; a predetermined master node in the mesh OBTN network updating bandwidth maps for all logical sub-networks; the predetermined master node is a node, which all control channels pass through, in all the nodes of the mesh OBTN network.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: February 12, 2019
    Assignee: XI'AN ZHONGXING NEW SOFTWARE CO., LTD
    Inventor: Xun Chen
  • Publication number: 20190034624
    Abstract: An apparatus includes a display, a processor coupled to the display and a memory coupled to the processor, wherein the memory includes instructions executable by the processor to identify an access attempt to a monitored resource by an application, the identification occurring after an access permission check is performed. The memory further includes instructions executable by the processor to determine whether the access attempt involves suspicious activity by evaluating a potential risk associated with the application accessing the monitored resource, and in response to determining that the access attempt involves suspicious activity to provide a graphical user interface (GUI) to the display, the GUI providing a notification of the access attempt.
    Type: Application
    Filed: January 12, 2018
    Publication date: January 31, 2019
    Inventors: Xun Chen, Seonghun Moon, HyungDeuk Kim, Jisu Kim
  • Patent number: 10150685
    Abstract: A water reclamation method on the basis of integrated use of magnetic resin adsorption and electrosorption is provided. It belongs to the water reclamation field, including the following steps: pump the biotreated effluent into a reactor that is filled with magnetic resin particles so that the chromaticity, organic pollutants, total nitrogen, total phosphorus contained in the wastewater can be effectively reduced; channel the fully reacted mixture into a precipitation tank for separation; part of the separated magnetic resin is pumped back into the reactor while the rest of the separated magnetic resin flows into a regeneration tank; the wastewater treated by magnetic resin adsorption then flows into an electrosorption unit for a desalting process; the remaining organic pollutants and inorganic pollutants are further removed.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: December 11, 2018
    Assignees: NANJING UNIVERSITY, NANJING UNIVERSITY YANCHENG ENVIRONMENTAL PROTECTION TECHNOLOGY AND ENGINEERING RESEARCH INSTITUTE, EST WATER AND TECHNOLOGIES CO., LTD
    Inventors: Aimin Li, Changming Wang, Haiou Song, Bojun Wang, Xiaowei Sun, Yeli Jiang, Zhaolian Zhu, Xun Chen, Jun Wang, Zhijian Yao, Chendong Shuang, Haibo Li, Yu Huang
  • Publication number: 20180342911
    Abstract: A wireless charging lighting device includes a charging transmitter and a charging receiver. The charging transmitter includes transmitter coil for transmitting power and a transmitter base for supporting the transmitter coil. The transmitter base includes two first positioning magnets. The two first positioning magnets are respectively placed on two sides of the transmitter coil. The charging receiver includes a receiver coil for receiving power, a fighting device electrically connected to the receiver coil, and a housing for packaging the receiver coil and the lighting device. Two sides of the receiver coil have a second positioning magnet, respectively. The magnetic attraction between the first positioning magnets and the second positioning magnets aligns the transmitter coil to the receiver coil.
    Type: Application
    Filed: May 25, 2018
    Publication date: November 29, 2018
    Inventors: Junhui Zhuang, Xun Chen, Yubing Zhu
  • Publication number: 20180275997
    Abstract: The present disclosure discloses a method and system for restarting a network service. The method comprises: in response to receiving a preparation signal for restarting a network service process, configuring a packet enqueueing rule for Iptables in a Linux operating system, and caching a pending packet from a kernel space to a user space; and through implementing a packet releasing program in the user space, releasing the pending packet cached in the user space to the kernel space in response to receiving a completion signal of completing restarting the network service process, such that a connection between the pending packet and a new process of the network service is established. An IP packet filtering system caches the pending packet from the kernel space to the user space, based on NFQUEUE or QUEUE.
    Type: Application
    Filed: November 16, 2016
    Publication date: September 27, 2018
    Inventor: Xun CHEN
  • Publication number: 20180217852
    Abstract: The present invention discloses a system service reloading method including receiving a call request for calling a system service, wherein the system service includes at least two service processes having same configuration information recording at least port information and socket information; according to a pre-configured service reloading state, determining whether to perform a system service reloading, wherein the service reloading state includes at least an open state and a close state; when the service reloading state is the open state, obtaining a process attribute corresponding to the service processes, wherein the process attribute is used to record a creation order of the service processes; and according to the process attribute, choosing one of the service processes in the system service to respond to the call request. The present invention solves the technical problem of the prolonged system service time delay during the reloading period caused by the system service reloading.
    Type: Application
    Filed: November 16, 2016
    Publication date: August 2, 2018
    Applicant: Wangsu Science & Technology Co., Ltd.
    Inventor: Xun CHEN
  • Patent number: 9984255
    Abstract: A method for verifying data integrity of a block device is provided. The method includes providing a secure world execution environment configured to monitor changes to data blocks of a block device, within the secure world execution environment, generating a hash for changed data blocks of the block device, and within the secure world execution environment, verifying and generating a cryptographic signature.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: May 29, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jitesh Shah, Song Wei, Ahmed Azab, Xun Chen, Peng Ning, Wenbo Shen, Michael Grace
  • Publication number: 20180069755
    Abstract: The present disclosure discloses a method and system for restarting the network service with zero downtime, comprising: a) listening, by an original process of the network service, on a first port; (b) configuring and initiating a transition process, wherein the configuring includes causing the transition process to listen on a second port different from the first port of the original process; (c) running a connection tracking module and, meanwhile adding an iptables rule to redirect a connection directed to the first port to the second port; (d) waiting until existing connections on the original process are processed completely, then exiting the original process; (e) initiating a new process on the first port according to a new configuring file; (f) reconfiguring the iptables rule to cancel port redirection; and (g) waiting until existing connections on the transition process are processed completely, then exiting the transition process.
    Type: Application
    Filed: May 30, 2016
    Publication date: March 8, 2018
    Inventor: Xun CHEN
  • Publication number: 20170371909
    Abstract: Persisting data in logical tiers of an in-memory database based on aging rules of the database system. The database system can be configured to age data by moving the data from a first logical tier supporting high performance data access to a second logical tier supporting lower performance data access, thereby improving the operational efficiency of the database system.
    Type: Application
    Filed: November 25, 2016
    Publication date: December 28, 2017
    Inventors: Mihnea Andrei, Christian Bensberg, Alexander Boehm, Adrian Draguseanu, Xun Chen, Reza Sherkat, Ani Nica, Martin Heidel, Rolando Blanco
  • Patent number: 9836822
    Abstract: The invention relates to a method and technical means for rotating an original image in an image frame by an angle to have a rotated image in said image frame, wherein said image frame comprising said rotated image having empty corners lacking image data; comparing the rotated image to the original image to identify remaining corners; adding content of the remaining corners to the empty corners of the image frame comprising said rotated image.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: December 5, 2017
    Assignee: Nokia Technologies Oy
    Inventor: Xun Chen
  • Publication number: 20170339474
    Abstract: A transmission method and system for an optical burst transport network are disclosed in the present document. The method includes: acquiring a topology of a mesh OBTN network, and generating one or more logical sub-networks according to the topology of the mesh OBTN network; a predetermined master node in the mesh OBTN network updating bandwidth maps for all logical sub-networks; the predetermined master node is a node, which all control channels pass through, in all the nodes of the mesh OBTN network.
    Type: Application
    Filed: December 8, 2015
    Publication date: November 23, 2017
    Applicant: ZTE CORPORATION
    Inventor: Xun CHEN
  • Publication number: 20170276576
    Abstract: A device comprises a contact reaction chamber, a circulating water inlet, a clear water basin, a circulating pump, a circulating water outlet, a solid phase extractant collecting tank, a magnetic holder, an electromagnet, a solid-liquid separation area, a drain valve, a wall sprinkling water inlet, and a wall sprinkling pipe, wherein, the contact reaction chamber is in a conical shape, and utilizes hydraulic power to perform stir to ensure no dead corner exists during contact stir; the obconical solid-liquid separation area increases the action area between a magnetic solid phase extractant and the electromagnet; the solid phase extractant collecting tank is in a downwards protruding dish shape to prevent the solid phase extractant from losing.
    Type: Application
    Filed: June 10, 2017
    Publication date: September 28, 2017
    Inventors: Qing ZHOU, Wei WANG, Aimin LI, Qingqing ZHAO, Minglu WANG, Rui GAO, Xiaowen MA, Peng SHI, Xun CHEN
  • Patent number: 9690474
    Abstract: A user interface module for a device having a touch display arranged with virtual keys and at least one first area. The device is adapted to execute at least one application adapted to receive text input and the touch display is arranged to display content associated with the application. The touch display is also arranged to display a text input area upon activation of the application's receiving of text input. The text input area, at least partially, overlaps the at least one first area. The touch display is also arranged to display the content being displayed in the first area as shaded and arranged to display text input received through the text input area clearly.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: June 27, 2017
    Assignee: Nokia Technologies Oy
    Inventors: Xun Chen, Roope Rainisto, Mohammad Anwari
  • Publication number: 20170098070
    Abstract: An apparatus and method of a hardware isolated secure element protecting a plurality of mission critical subsystems are provided. The method includes performing an actuation operation received across an unsecure path that modifies the state of a mission critical subsystem, performing a diagnostic operation received across the unsecure path that requests state information of the mission critical subsystem, storing information used to determine which of the diagnostic operation and the actuation operation received across the unsecure path are performed, and flashing an execution image of an electronic control unit when the execution image of the electronic control unit is received across the unsecure path.
    Type: Application
    Filed: February 19, 2016
    Publication date: April 6, 2017
    Inventors: Peng NING, Stephen E. MCLAUGHLIN, Michael C. GRACE, Ahmed M. AZAB, Rohan BHUTKAR, Wenbo SHEN, Xun CHEN, Yong CHOI, Ken CHEN
  • Publication number: 20170044039
    Abstract: A water reclamation method on the basis of integrated use of magnetic resin adsorption and electrosorption is provided. It belongs to the water reclamation field, including the following steps: pump the biotreated effluent into a reactor that is filled with magnetic resin particles so that the chromaticity, organic pollutants, total nitrogen, total phosphorus contained in the wastewater can be effectively reduced; channel the fully reacted mixture into a precipitation tank for separation; part of the separated magnetic resin is pumped back into the reactor while the rest of the separated magnetic resin flows into a regeneration tank; the wastewater treated by magnetic resin adsorption then flows into an electrosorption unit for a desalting process; the remaining organic pollutants and inorganic pollutants are further removed.
    Type: Application
    Filed: November 18, 2014
    Publication date: February 16, 2017
    Inventors: AIMIN J. LI, CHANGMING WANG, HAIOU SONG, BOJUN WANG, XIAOWEI SUN, YELI JIANG, ZHAOLIAN ZHU, XUN CHEN, JUN WANG, ZHIJIAN YAO, CHENDONG SHUANG, HAIBO LI, YU HUANG
  • Publication number: 20170044031
    Abstract: A method for harmless disposal and resource utilization of resin desorption liquid generated in the ion exchange process is provided. Resin desorption liquid is channeled into an electrolytic tank, which is arranged with an inlet and an outlet; the anode and the cathode within the electrolytic tank are separately connected to a stabilized power supply; both the direct and indirect oxidation process and occurred at the anode can decompose the organic pollutants in the desorption liquid; with necessary replenishment of fresh regeneration agent, the treated desorption liquid can exert excellent performance in regenerating saturated resin; the recycled use of resin desorption liquid is therefore realized, which consequently avoids unnecessary waste of regeneration agent and reduces the final yield of the desorption liquid. This method is characterized by being convenient in operation, without addition of extra reagents, without secondary pollution, and suitable for the desorption liquid with wide pH variations.
    Type: Application
    Filed: November 7, 2014
    Publication date: February 16, 2017
    Inventors: AIMIN J. LI, BOJUN WANG, CHANGMING WANG, YELI JIANG, ZHAOLIAN ZHU, HAIOU SONG, JUN WANG, XUN CHEN