116results about How to "Maximize transfer efficiency" patented technology

A multi-sector in-building repeater, including: a master transmitting unit for receiving multi-sector signals of a carrier from a base station, mixing the multi-sector signals with different transmission intermediate frequency signals, and outputting mixed multi-sector signals to a same transmission line; a plurality of slave transmitting units for extracting sector signals assigned to the multi-sector signals from the master transmitting unit, converting extracted sector signals into high frequency signals, and transmitting converted high frequency signals through an antenna to a mobile terminal.

The wireless power transmission system of this invention transmits power over a resonant magnetic field. The system includes a power-transmitting resonator 105 and a power-receiving resonator 107, at least one of which is a series resonant circuit with an inductor including spiral wiring 201 and extended wires 213, 207a, 207b and 207c. The extended wire 213 connects a point 203 of the spiral wiring 201 to a power supplying structure, while the extended wires 207a, 207b and 207c connect other points of the spiral wiring 201 to the power supplying structure. Capacitors 209a, 209b and 209c and switches 211a, 211b and 211c are connected to the extended wires 207a, 207b and 207c, respectively. The series resonant circuit has its inductance varied according to which current path has been chosen by selectively turning ON one of the switches. A wiring portion 201a of the spiral wiring 201 has a low-resistance portion 2010, of which the wiring resistance per unit length at a resonant frequency is set to be lower than in at least a part of the rest of the spiral wiring.

The present invention provides an optical fiber connector for making high-precision optical connections between optical fibers. During assembly, a ferrule is rotationally adjusted around its axis 360° without stepping. The assembly, including this rotational adjustment, can be performed easily and reliably.An optical fiber connector 1 comprises: a housing 2 that can be mounted on and removed from an adapter A; a ferrule 3 through which a cladding portion F1 at the end of an optical fiber F is inserted is rotatably housed in the housing 2 so that it can move along the axial direction; a compression coil spring 4 biasing the ferrule 3 in the axial end direction; and a rotation-restricting slide mechanism 5 that restricts rotation of the ferrule 3 relative to the housing 2 at the base-end side of the housing 3 and that allows the ferrule 3 to slide in the axial direction.

Provided is a transmitting / receiving apparatus and method for an IDMA system. The receiving apparatus includes a channel estimator, an estimator, and a determiner. The channel estimator estimates a channel using a multi-user signal received through at least one RX antenna. The estimator estimates the noise power and the signal power for each transmission layer of each user by using the estimated channel value from the channel estimator. The determiner determines the number of transmission layers for each user and an MCS level for each transmission layer by using the signal power and the noise power estimated by the estimator.

In a device system, and method for inductive charging, an efficiency of transmission of electromagnetic induced power may be maximized. Specifically, a control portion of a charging device may change an attribute, such as position or area, of a primary coil as to be more aligned with a secondary coil of to be charged device.

There is provided a Multi-Input Multi-Output (MIMO) communication system including a transmitter for combining at least four transmit antennas according to each of at least two sub-channels, and transmitting space-time-coded signals and at least one receiver for receiving the signals through at least two antennas, wherein the receiver includes an antenna coordination information generator for generating and feeding back optimal transmit antenna coordination information according to said each sub-channel by means of the received signals, and the transmitter includes an antenna coordination controller for controlling coordinations of the transmit antennas according to each sub-channel based on the transmit antenna coordination information fed back from the receiver.

A method is disclosed for controlling a rate of flow of cooling oil to a friction launch clutch and electric motor in a hybrid electric vehicle powertrain. The rate of flow is determined by changes in clutch temperature and motor temperature. Cooling oil flow in excess of the flow required to maintain a desired temperature is avoided.

A multi-ported orthogonal data memory (16) for effecting a corner-turning function, where for example data input as a sequence of bit-parallel word-serial data transfers are converted to data output in a bit-serial, word-parallel fashion, is described. The memory (16) is arranged to transfer data words comprising a plurality of data items and comprising: a plurality of data memory cells (36) arranged in the form of a matrix having rows and columns, and a plurality of groups (A, B, C, D) of memory cells (36) within the matrix, each group (A, B, C, D) being defined across multiple rows and columns and being individually addressable to effect transfer of a data word thereto; and enabling means having dedicated strobe connections (PDTEN) to each of the plurality of groups (A, B, C, D) of memory cells (36) and being arranged to enable selected ones of the plurality of groups (A, B, C, D) of memory cells (36) to read data present at their inputs, or to write stored data to their outputs, in a single transfer operation.

A wireless power transmitter according to an embodiment includes a coil and a capacitor which resonate with a wireless power receiver. The coil includes a plurality of cell groups and a core which connects the cell groups with each other. Each of the cell groups includes a plurality of cells. Each of the cells is configured such that magnetic field generated by currents flowing through the cells are formed in a same direction. Each of the cell groups is adjacent to at least one cell group. Each of the cell groups and the core are configured as one conductive wire.

An ion transfer tube for a mass spectrometer comprises a core member and a first jacket tube member at least partially enclosing the core member and providing one or more channels therethrough. A method of forming an ion transfer tube, comprises: providing a first jacket tube member having a length and an internal bore, the internal bore passing along the length and defining an interior surface of circular cross section; removing at least one portion of the first jacket tube member adjacent to the interior surface so as to form at least one groove, channel, slot, recess or embayment of or in the interior surface; and providing a core member within the bore of the jacket tube member such that remnant portions of the interior surface of circular cross section mate against portions of an exterior surface of the core member.

The invention discloses a correlated imaging device and a correlated imaging method based on an optical parametric process. The method comprises the steps as follows: modulating the spatial intensity of detection laser to make the laser of which the spatial intensity is distributed randomly be irradiated on a target object; enhancing or converting the frequency of a collected signal reflected or transmitted by the target through an optical parameter conversion module, and using a barrel detector to detect the signal to increase the detection sensitivity of weak signals; and carrying out correlated imaging of the laser signal after optical parameter conversion to obtain a target imaging result. By combining correlated imaging and optical parameter conversion, the advantages of high sensitivity, high resolution and frequency conversion are achieved, and both horizontal image information and vertical distance information of the target object can be provided.

The present invention relates to a method and apparatus for processing a signal. An object of the present invention devised to solve the problem lies on a method and apparatus for processing a signal, which allows a signal having optimized signal transmission efficiency to be transmitted / received. According to an aspect of the present invention, there is provided a method of processing a signal including receiving a broadcasting signal including audio data coded using a pilot reference value and a pilot difference value, demodulating the broadcasting signal in consideration of a scattered pilot which varies over time and a continual pilot which is fixed over time in a frame of the received broadcasting signal and decoding the demodulated signal to obtain a broadcasting transmission stream, demultiplexing the broadcasting transmission stream to obtain coded audio data in an Internet protocol (IP) packet and an identifier for identifying a method of decoding the audio data, obtaining the pilot reference value corresponding to a plurality of data and the pilot difference value corresponding to the pilot reference value from the coded audio data and obtaining the audio data using the pilot reference value and the pilot difference value.

The invention discloses a image processing method based on an FPGA accelerated convolution neural network framework, which mainly solves the problems of low resource utilization rate and slow speed ofthe prior art. The plan comprises the following steps of:1) calculating a picture division fixed value according to the designed picture parameter and the FPGA resource parameter; 2) determining theDDR3 number according to the picture fixed value and distributing the block ram resource; 3) constructing a convolution neural network framework according to 1) and 2), wherein the framework comprisesa picture storage module, a picture data distribution module, a convolution module, a pool module, a picture storage back DDR3 module and an instruction register group; 4) obtaining a control instruction from the instruction register set through a handshake signal and interacts with each other, and processing the picture data according to the control instruction. The invention improves the resource utilization and acceleration effect through the FPGA-accelerated convolutional neural network framework, and can be used for image classification, target recognition, speech recognition and naturallanguage processing.

Disclosed herein is a method for protecting and restoring a link in an OBS network. The method includes a step of transmitting / receiving a liveness-confirming message for confirming liveness of the link between an up-node and a down-node respectively connected to both ends of the link at a predetermined message transmission period, to judge whether a fault is generated on the link, a step in which the up-node and down-node respectively update link information when it is judged that the link fault is not generated, and a step of restoring the link having the fault using predetermined restoration channel information based on an offered load measured when the link is in a normal state when it is judged that the link fault is generated. Accordingly, a link having a problem can be effectively protected and restored in the OBS network.

A specialty food-processing knife includes a rigid handle, a circular blade axis, a blade axis holder, a blade axis holder lock, and a blade axis safety cover. The handle provides a blade axis upper housing to cut protect the user's hand and is configured with guide grooves, coupling pivot holes, and a guide tunnel. The guide grooves restrict the blade axis movement to a circular motion, the pivot holes allow swiveling of the blade axis holder, and the guide tunnel provides unidirectional motion to the blade axis holder lock. The blade axis is composed of several parallel circular blades, which are held in position by spacer bushings and lock nuts that encapsulate a stiffener rod. The blade axis holder presents a parallel slotted array to prevent food fragments from entering the blade axis housing and allow the axis blades to be partially exposed and rotate freely. The blade axis holder lock includes barriers, which limit the lock to an open or closed position. The blade axis cover has a locating lip that allows coupling with the knife handle.

Provided is a method of file synchronizing. The method includes: determining whether there is a changed matter in a file which is divided into a plurality of chunk files; calculating a hash value for each of plurality of divided chunk files when it is determined that there is a changed matter in file; transmitting a hash value list configured by calculated hash values to a server; receiving a transmission request for a chunk file corresponding to a hash value which is not stored in server, among hash values included in hash value list; and transmitting chunk file to the server in response to the transmission request.

A power added efficiency optimizer apparatus is provided for measuring and monitoring input and output power of an amplifying device, and adjusting the load impedance seen by the amplifying device so that power added efficiency is maintained at optimum levels. A power added efficiency optimizing device includes a variable load impedance that can be controlled, at least one power detection device located after the load, a difference forming apparatus, and at least one coupling device. The power added efficiency optimizing device provides an ability to maintain an amplifier at peak efficiency in a dynamic way and in the presence of changing electromagnetic load conditions.

The invention discloses a hydraulic driving component comprising a torque converter and a coupler. The hydraulic driving component comprises an input shaft, an intermediate shaft, an output shaft, the coupler and the torque converter, wherein the coupler and the torque converter are arranged at two ends of the intermediate shaft respectively. The coupler comprises a coupler pump wheel, a coupler worm gear, and a coupler back shell. One end of the input shaft is connected with the coupler pump wheel. One end of the intermediate shaft is provided with a shaft sleeve which is in interference fit with the intermediate shaft. The coupler back shell is connected with both the shaft sleeve and the coupler worm gear. The torque converter comprises a converter pump wheel, a converter worm gear and a guide wheel. The converter worm gear is connected with the intermediate shaft. The other end of the input shaft is connected with the converter pump wheel. The intermediate shaft and the output shaft are interconnected and coaxially located. The hydraulic driving component has the advantages that driving efficiency is improved, power loss is decreased and resources are saved.

A split-pressure, dual-pump system for supplying hydraulic fluid to a multi-speed transmission is provided. The system includes a low-pressure work circuit operatively connected to a fixed displacement pump, and a high-pressure work circuit operatively connected to a variable displacement pump. The system also includes a regulator valve fluidly coupled to the variable displacement pump via a decrease circuit and an overage circuit for regulating the flow of fluid to the high-pressure work circuit. The invention consists of separating the high-pressure needs of the system into a separate work circuit from the low-pressure needs of the system, and optimizing pump design separately for each work circuit to maximize transmission efficiency and reduce parasitic losses. A method of supplying hydraulic fluid to a multi-speed transmission at variable flow and pressure is also provided.

The purpose of the present invention relates to a network-based wireless power control method, and a device and a system therefor. A wireless power control method, in a wireless power transmission device which wirelessly transmits power to a wireless power reception device, according to a first embodiment of the present invention, comprises the steps of: transmitting a first signal via a first frequency band when a power source is applied; when a second signal corresponding to the first signal is received via a second frequency band, measuring the first reception sensitivity of the second signal; receiving second to n-th reception sensitivities corresponding to the second signal from at least one other wireless power transmission device connected via a network; and determining whether power has been wirelessly transmitted to the wireless power reception device, on the basis of the first to n-th reception sensitivities. As such, the present invention has an advantage of being capable of more effectively transmitting power wirelessly by using a wireless power transmission device connected via a network.

A joint scheduling apparatus and method for increasing frequency efficiency and fairness in a distributed antenna system using frequency reuse and common control power Packets are selected for transmission to be transmitted to MSs are selected, taking into account QoS in at least one of a BS and an RS and grouped into packet groups. The packets are selected from the packet groups, links corresponding to the packets are grouped into a link group, a joint power control is performed on the link group, link elimination and link addition are performed for the link group until optimal solutions are achieved for the links of the link group in the joint power control. Channels are allocated to the links when the optimal solutions are achieved for the links, and the status of a user queue of at least one of the BS and the RS is updated.

Disclosed is a power supply apparatus of a wireless power transmitting apparatus wirelessly transmitting power to a wireless power receiving apparatus. The power supply apparatus includes a power supply to supply DC power, an oscillator to generate an AC signal having a predetermined frequency and an AC power generator to generate AC power using the AC signal and the DC power. The power supply apparatus controls an operating time of the AC power generator to adjust the power supplied to the wireless power transmitting apparatus.

A power supply device for a wireless power transmitting apparatus according to an embodiment of the present invention includes a power supply unit to supply DC power, an AC power generating unit to generate AC power by using the DC power, and a harmonic component reduction unit to reduce a magnitude of power for a harmonic frequency component in the generated AC power.

Disclosed is a signal processing method for realizing the data compression and resumption with high transmission efficiency and an apparatus, wherein pertinence is used to execute the data coding and entropy coding, and grouping is used to advance the coding efficiency. According to the signal processing method of the invention, the method comprises: de-packaging the signal received from the Internet protocol; obtaining the identification information of the data code from the de-packaged signal; and performing the data decoding on the data according to the data coding scheme indicated by the identification information of the data code, wherein the data coding scheme at least includes a pilot coding scheme which decodes the data through the pilot reference value and the pilot difference corresponding to a plurality of data, and the pilot difference is generated through the data and the pilot reference value.

The invention provides a decode-and-forward strategy based multi-antenna relay beam forming method which includes the steps: in the first time slot, obtaining a beam forming vector of a signal source node S, enabling the signal source node S to send signals s1 to a relay node R and a destination node D simultaneously, and enabling the relay node R and the destination node D to receive the signals s1 simultaneously; and in the second time slot, enabling the relay node R to receive and decode the signals s1, recoding information to signals s2 and sending the signals s2 to the destination node D. By the decode-and-forward strategy based multi-antenna relay beam forming method, the design that the beam forming vector of the signal source node S is obtained in the first time slot is provided, so that transmission efficiency is maximized, and channel interrupt probability is minimized; and the relay technology and the multi-antenna beam forming technology are combined together, the optimal beam forming vector is designed, and accordingly transmission efficiency and reliability can be improved, and transmitting power is saved.