Abstract: A screw-driven control system includes a driving mechanism fixed in a cross beam, a guide locking piece and a limiting mechanism.

Abstract: An apparatus for negative stiffness including one or more solenoids for generating a magnetic field. A moveable magnet is moveable relative to the one or more solenoids through the one or more solenoids. The one or more solenoids are configurable to generate an at least substantially quadratic magnetic field about an equilibrium position at which the resultant force on the moveable magnet is zero. Depending on the respective pole orientation, generating a quadratic magnetic field about an equilibrium position provides a substantially linear negative stiffness characteristic with displacement.

Abstract: A positioning server may acquire at least one candidate AP set from an initial AP set, wherein each of the at least one candidate AP set includes a preset number of APs enclosing a terminal which is to be positioned. The positioning server may select a target AP set from the at least one candidate AP set, wherein a distance from each of the APs included in the target AP set to the terminal is less than a preset threshold. The positioning server may determine the preset number of APs included in the target AP set as positioning APs for positioning the terminal.

Abstract: According to an example, a Virtual Switch Instance (VSI) in a provider edge (PE) device is obtained and an encapsulation Virtual Local Area Network (VLAN) ID corresponding to the VSI is obtained. A service VLAN (SVLAN) ID in VLAN mapping information in a customer edge (CE) device adjacent to the PE device in the VSI is also obtained, and the CE device is determined to be an access CE device of the PE device in the VSI in response to a determination that the SVLAN ID is identical to the encapsulation VLAN ID.

Abstract: An encapsulation apparatus for encapsulating data includes an input to receive the data, a machine to generate information related to the encapsulation of data and a logic coupled to the machine. A processing machine is coupled to the input and the logic.

Abstract: The invention relates to a power grid visualization system and a power grid visualization method based on a three-dimensional geographic information system (GIS) technology. Models to be loaded are divided into different model loading subtasks according to the difference of object types included in a scene to be loaded, and model files are called in parallel from a plurality of subtasks in a multi-thread mode; and meanwhile, on the basis that loading tasks are divided into a plurality of model loading subtasks according to the loaded object types, model files of objects of each type are only read once, moreover, reuse of the model files is not limited to a client loading task, different clients can reuse the read model files, and the characteristics of limited type and relatively consistent specification of power equipment are fully considered, so that rereading of the model files of the same type is avoided.

Abstract: An encapsulation apparatus for encapsulating data includes an input to receive the data, a machine to generate information related to the encapsulation of data and a logic coupled to the machine. A processing machine is coupled to the input and the logic.

Abstract: A powerless helical locking mechanism for a door includes a screw with a variable lead angle connected with a power source, and a self-adaptive nut connected to the door. The helical slot of the screw is divided into a working segment with the helical lead angle greater than the friction angle, a closing segment with the helical lead angle smaller than the friction angle, and a transition segment between the closing and working segments. The power source actuates the screw to rotate bidirectionally.

Abstract: A device includes a universal serial bus (USB) port comprising a data terminal and a power terminal to receive power from a remote USB port. The device includes a controller coupled to the data terminal of the USB port to provide a USB initialization signal.

Abstract: A device includes a universal serial bus (USB) port comprising a data terminal and a power terminal to receive power from a remote USB port. The device includes a controller coupled to the data terminal of the USB port to provide a USB initialization signal.

Abstract: A multi-dimensional training device for training arm and wrist and capable of changing weight includes a connection member, a first turning member connected to the connection member, a first handle pivoted on the first turning member, a second turning member pivoted on the connection member, and a second handle pivoted on the second turning member. The second turning member may be disassembled to mount weight member on the connection member or take the weight member off from the connection member. User may hold the first and second handles to turn or move the training device of the present invention for training more muscles and joints.

Abstract: A powerless helical locking mechanism for door includes a screw (1) with variable lead angle connected with a power (11) and a self-adaptive nut (19) connected to the door (10), in which, the helical flux of the screw is divided into three segments: one segment is a working segment with the helical lead angle greater than the friction angle, one segment is a closing segment with the helical lead angle smaller than the friction angle, and transition segment between the two segments, the power (11) actuates the screw to corotation and reverse, the self-adaptive nut (19) consists a spindle sleeve (7), a wrist (5) and other part, the nut and the screw is assembled to a helical kinematic-pair, wherein the wrist is dipped into the helical flutes of the screw and line contacts with the flute making the wrist and random helical flute of helical lead angle form mating helical pair to translate power and movement.

Abstract: A data stream bonding device comprises a first unit to receive or transmit first data of a first data stream from a first communication link and a second unit to receive or transmit second data of a second data stream from a second communication link. A first interface is coupled to the first unit and a second interface is coupled to the second unit to establish a frame-based communication link between the first and second unit. A processor is provided to generate information related to bonding.

Abstract: A multi-dimensional training device for training arm and wrist and capable of changing weight includes a connection member, a first turning member connected to the connection member, a first handle pivoted on the first turning member, a second turning member pivoted on the connection member, and a second handle pivoted on the second turning member. The second turning member may be disassembled to mount weight member on the connection member or take the weight member off from the connection member. User may hold the first and second handles to turn or move the training device of the present invention for training more muscles and joints.

Abstract: An all optical network for optical signal traffic provides at least a first ring with at least a first clockwise fiber, a second counter-clockwise fiber and a plurality of network nodes. Each node has at least a WDM transponder that with a line-side transmitter and a client-side receiver in a first direction, and a line-side receiver and a client-side transmitter in an opposing second direction. The line-side receiver includes a fixed or a tunable optical wavelength filter. At least a first add and a first drop broadband couplers are positioned on each fiber. Each coupler has first and second ports for through traffic and a third port for adding or dropping local traffic. The first add and first drop broadband couplers are configured to minimize a pass-through loss in each fiber. If there are multiple WDM transponders, their wavelengths are added to the ring either in series or in parallel. All wavelengths dropped from the ring are selected by each individual WDM transponder in a parallel or serial manner.

Abstract: An encapsulation apparatus for encapsulating data includes an input to receive the data, a machine to generate information related to the encapsulation of data and a logic coupled to the machine. A processing machine is coupled to the input and the logic.

Abstract: A data stream bonding device comprises a first unit to receive or transmit first data of a first data stream from a first communication link and a second unit to receive or transmit second data of a second data stream from a second communication link. A first interface is coupled to the first unit and a second interface is coupled to the second unit to establish a frame-based communication link between the first and second unit. A processor is provided to generate information related to bonding.

Abstract: An optical signal transmitter is disclosed that transmits an optical signal with corresponding Wavelength Division Multiplexing (WDM) channels and Time Division Multiplexing (TDM) channels. The transmitter is comprised of a laser, a dispersion system, and a modulator. The laser generates and transmits a narrow laser pulse comprised of a plurality of wavelength channels. The dispersion system broadens the narrow laser pulse into a wide laser pulse. The modulator modulates the wide laser pulse based on an electric modulation signal comprised of a plurality of time slot channels wherein the time slot channels in the electric modulation signal correspond to the wavelength channels in the wide laser pulse respectively. The modulator transfers a modulated wide laser pulse. Channels of the modulated wide laser pulse are hybrid wavelength and time slot channels. The transmitter singularly transmits a WDM optical signal comprised of multiple wavelength channels.

Abstract: A system for reducing the influence of polarization mode dispersion (PMD) in high speed fiber optical transmission channels. A signal is forward error correction (FEC) encoded according to an FEC code that defines a specified error tolerance per codeword. The invention then effectively randomizes the input polarization of the signal before transmission, in order to reduce the likelihood that PMD will distort one or more codewords beyond the allowed error tolerance. The invention will thereby increase the PMD-limited transmission distance in an optical transmission system.

Abstract: A PMD mitigation system is disclosed that is comprised of an interface coupled to a control system. The interface receives an optical signal and transfers the optical signal to the control system. The control system receives the optical signal from the interface, recovers a clock signal from the optical signal, optically reshapes the optical signal using the clock signal to generate a PMD mitigated signal, and transfers the PMD mitigated signal to the interface. The interface transmits the PMD mitigated signal. The PMD mitigation system advantageously mitigates PMD in the optical signal by optically reshaping the optical signal.