摘要:
Various systems and methods for remote multi-touch control are described herein. A system may include a mode controller to enter an orientation mode for a user interface displayed by a presentation device, the orientation mode configured to allow a user of the presentation device to orient an input point on the user interface with a remote device, and an input/output module to receive an input from the user to trigger the presentation device to transition from the orientation mode to a pass-through mode, the pass-through mode configured to allow the user to control an application at the presentation device using a touch point on the remote device, the mode controller is to enter the pass-through mode at the presentation device, the input/output module is to receive input from the user via the remote device, and the presentation device is to pass the input through to the application.
摘要:
A combining arrangement comprises a power combiner 3 having at least four ports; a first match-dependent oscillator 1 connected to input power at a first frequency to a first input port of the power combiner 3; a second match-dependent oscillator 2 connected to input power at a second frequency to a second input port of the power combiner 3; and a mismatch 4 connected to a third port of the power combiner. The power combiner 3 is operative to combine power from the first and second oscillators and, when the first and second frequencies are different, to apply a fraction of the combined power to the mismatch 4. The mismatch 4 reflects at least some of the fraction to the first and second oscillators to phase and frequency lock their outputs. A fourth output port of the power combiner is connected to receive the combined power. The power combiner attenuation is variable to adjust the proportion of the combined power split between the third port and fourth output port from 0% to 100% of the total combined power for any power values at the first input port and second input port. The oscillators may be magnetrons. The arrangement may include a plurality of power combiners connected in series, in parallel or in an arrangement including both in series and in parallel connections.
摘要:
A method for identifying impedance related parameters in a wireless power transfer (WPT) system including n coils is disclosed. Said method includes determining optimum values of the impedance related parameters based on a set of measured input impedance by applying an evolutionary algorithm to solve optimum solutions. Wherein the set of measured input impedance includes an input impedance vector {right arrow over (Z)}=(Z1, Z2, . . . , Zm-1, Zm), each input impedance in the vector (Zk) measured at different frequencies fk, (k=1, 2, . . . m); and the impedance related parameters includes dll+1 representing a distance between the l-th coil and the l+1 coil (l=1, 2, . . . n−1) and Ci representing a capacitance of the capacitor connected to the i-th coil (i=1, 2, . . . n).
摘要:
Embodiments of an adaptive power supply are disclosed for accommodating instances in which too much power is generated for a load demand and instances in which too little power is generated for a load demand.
摘要:
A spectrometer comprises a substrate and a waveguide on the substrate, the waveguide including an elongate part and a tapered input for guiding electromagnetic radiation to the elongate part. The tapered input includes an input end for receiving the electromagnetic radiation and an output end coupled to the elongate part, the input end being wider than the output end. The spectrometer may further comprise a plurality of resonators coupled to the elongate part of the waveguide.
摘要:
A kite for a system for extracting energy from the wind, the kite comprising: a body having a wing for providing lift; means for connecting the wing to a tether; and means for controlling the flight of the kite in the wind, wherein the wing is asymmetric in a spanwise direction from a first end of the wing to a second end of the wing. The asymmetry may be provided to optimise the shape of the wing for a flight pattern in which one end of the wing has a higher speed than the other end of the wing. For example, the asymmetry may be optimised to allow the kite to follow a flight pattern resembling a circle, from the point of view of a base unit of the system.
摘要:
A terminal for communicating with a communication satellite A terminal comprising: a first transceiver for communicating with at least one device in a short range network; a second transceiver for communicating with a geostationary communication satellite in a network deploying a plurality of forward channels for the communication satellite to transmit data to said terminal and a plurality of return channels for the terminal to transmit data to said communication satellite, the second transceiver being configured to transmit data from said at least one device in one of said plurality of return channels. The at least one device may comprise a plurality of utility meters and other sensors. A large system comprising a plurality of the terminals, a communication satellite and a data authority may provide a system for collecting utility meter readings across a geographical region.
摘要:
A receiving device for receiving a satellite broadcast comprising: a receiver for receiving a sustaining satellite beam; and a controller for switching the receiver to receive a high power content beam in response to a determination that the high power content beam can be received by the receiving device. A communication satellite transmits the high power content beam to different geographical areas at different times. The sustaining beam allows the receiving device to remain synchronised with the communication satellite when the high power content beam is directed elsewhere. The sustaining beam may be a lower power beam. The determination that the high power content beam can be received may be performed based on information in the sustaining beam. Alternatively or additionally, the determination that the high power content beam can be received may be made by monitoring the signal strength of a frequency associated with the high power content beam.
摘要:
According to the present invention, there is provided an apparatus comprising a hybrid network comprising at least one hybrid coupler, and a plurality of circulators, each circulator having a first port connected to the hybrid network, and further having a second port and a third port. Each circulator is arranged to direct a signal received via the second port to the hybrid network via the first port, and to direct a signal received from the hybrid network towards the third port.
摘要:
The invention provides a method and apparatus for applying test signals to a multiport amplifier (MPA) and a method, apparatus and system for determining parameter adjustments for an MPA. Applying test signals to an MPA is performed so as to provide an output signal indicative of parameter adjustments for the MPA, the multiport amplifier arrangement comprising an input network, an amplifier unit and an output network, where the method includes providing a test signal directly to a point in the multiport amplifier arrangement between an output of the input network and an input of the amplifier unit. The method of determining parameter adjustments for a multiport amplifier arrangement includes receiving first and second output signals associated with an output of the multiport amplifier arrangement, the first output signal corresponding to a first signal path through the multiport amplifier arrangement and the second output signal corresponding to a second signal path through the multiport amplifier arrangement and determining parameter adjustments based on the first and second output signals.