94results about How to "Flexibility advantage" patented technology

A method for executing a video conference is provided that includes receiving one or more audio streams associated with a video conference from one or more end points and determining an active speaker associated with one of the end points. Audio information associated with the active speaker may be received at one or more media switches. One or more video streams may be suppressed except for a selected video stream associated with the active speaker, the selected video stream propagating to one or more of the media switches during the video conference. The selected video stream may be replicated such that it may be communicated to one or more of the end points associated with a selected one of the media switches.

A power supply system for illuminating an LED lamp unit 5, having a normal mode of operation in which a mains input 4 of a driver 3 of the LED lamp unit is supplied by mains power 1, and an emergency mode of operation, in which the LED lamp unit is supplied by a charge storage device 19, is disclosed. The system includes an emergency mode converter 21 operable to step-up the voltage from the charge storage device and to supply the mains driver input for illuminating the LED lamp unit.

Generic rights expression language allowing interoperability across different computing environments including resource usage of different applications. A formal framework for usage management provides scaffolding upon which interoperable usage management systems can be built. Certain features of the framework are standardized, such as the operational semantics, including areas free of standards that necessitate choice and innovation to achieve a balance of flexibility and usability for interoperability in usage management systems.

A network is protected against interruption of service while one or more faulty switches or optical fiber transmission lines are repaired or replaced, by an interconnecting configuration of small N×N optical input/output switches, where N is 2 or greater than 2. The switches are configured among protection and working transmission lines. The small number of fibers for each switch improves repair and installation connection reliability and permits configurations that flexibly meet differing requirements. Also the fault is monitored with a fault check signal.

The invention discloses an adaptive generalized spatial modulation (AGSM) method and a simplified method thereof. Through the adaptive generalized spatial modulation method, different antenna combinations in GSM (Generalized Spatial Modulation) can use different constellation modulation orders more flexibly, and an optimal combination is selected through antennas to enhance the BER (Bit Error Rate) performance of a system. In LA-GSM, a plurality of system constellation modulation orders are simplified into two orders on the basis of AGSM, and an antenna combination number in the GSM is utilized fully. A total antenna number, unified time slot activation antenna number and a constellation modulation order are compromised flexibly according to system requirements. Compared with ordinary GSM, AGSM has the advantages that a certain performance gain is achieved in comparison to the GSM since an adaptive antenna selection algorithm is added under the same spectrum efficiency. The LA-GSM has a certain performance gain in comparison to the GSM under the same spectrum efficiency and antenna combination. When the total number of antennas in the LA-GSM is smaller than that of the GSM, the algorithm is used for adapting to the constellation modulation order. The error bit rate is also close to the GSM.

A method and apparatus are provided for transmitting a multicarrier spread-spectrum signal formed by a temporal succession of multicarrier symbols, using OQAM modulation and a plurality of inter-orthogonal spreading codes. The method includes spreading at least one complex-value data symbol, representative of a source data signal to be transmitted, over a set of sub-carriers of at least one multicarrier symbol, each of the sub-carriers modulating a complex value.

The invention relates to a coating composition for rapidly repairing a damaged skin coat of a spacecraft. The coating composition comprises a component A and a component B, wherein the component A comprises the following components in percentages by mass: 15%-25% of medium-high molecular weight epoxy resin, 2%-12% of modified resin, 15%-30% of conventional-type pigment and filler, 15%-30% of environment-friendly anti-corrosion paint, 0.5%-1% of additive and the balance of the solvent; the component B comprises the following components in percentages by mass: 60%-90% of epoxy-amine adduct, 10%-40% of epoxy-polyaminoalkoxysilane adduct, and the sum of epoxy-amine adduct and epoxy-polyaminoalkoxysilane adduct is 100%; before construction, the component A and the component B are evenly mixed at a mass ratio of (4 to 6): 1. The coating composition has excellent comprehensive performance which is comparable to that of the novel coating system, the repair time is shortened, the repair efficiency is increased, the wastes of energy and resources are decreased and the labor intensity of workers is reduced.

An axial machine having a wedge that drives a plurality of pistons and a retainer plate for maintaining the slipper shoes in contact with the wedge. A center positioning mechanism for the retainer plate in which the slipper shoes placed on the wedge have a portion extending through a respective hole in the retainer plate, with each of the slipper shoes engaging a point on the side of its respective hole to restrain the retainer plate from movement parallel to the planar angular surface of the wedge. Also described is an oil separation system for removing oil from the gas to be compressed such that the removed oil drains into the oil sump. An oil lubrication system has a cavity around the drive shaft to receive oil from the sump, and disburse the oil through a passageway to discharge ports in the wedge to disburse oil on the planar angular surface of the wedge.

The invention discloses a non-reference video stability quality evaluation method based on inter-frame motion smoothness, and belongs to the field of video processing. The method comprises the following steps: extracting adjacent frame feature points by using a SURF (Speed Up Robust Features) algorithm; performing grid processing on video frames; calculating grid homograph matrixes; constructing binding paths by the homograph matrixes; calculating the smoothness of the binding paths; and synthesizing the smoothness of all the binding paths to obtain a final video stability quality evaluation result. Compared with an existing method, the method has the advantages that the smoothness degrees of the paths are represented by intrinsic geodesic curvatures of binding motion paths, so that very high consistence with subjective quality evaluation, and relatively high robustness, flexibility and efficiency are achieved.

A high strength pipeline is formed by polybutylene material, wherein the polybutylene material is added with additive, and the additive is toughening agent, light stabilizer, antioxidant or pigment. The invention also provides a method for preparing the high strength pipeline, which includes the following steps: firstly the toughening agent, the light stabilizer, the antioxidant and the pigment are weighted according to the weight percentage followed by mixing and extrusion granulation to obtain master batch; then the master batch and the polybutylene are distributed and blended followed by extrusion, cooling and cutting to obtain the product. The pipeline of the invention has high heat resistance, good flexibility, and has much better resistance to pressure compared with conventional plastic pipes under the same service temperature.

The invention discloses a gas protection device for the front side of a titanium alloy material weld joint. The gas protection device comprises a threaded rod and two ventilation sliding blocks. The two ventilation sliding blocks are connected through the threaded rod, and the distance between the two ventilation sliding blocks is adjusted through nuts matched with the threaded rod. Each ventilation sliding block is provided with an air inlet, and an air inlet channel is machined in the ventilation sliding block along the air inlet. One or more vent hole sets are machined in the opposite faces of the two ventilation sliding blocks. Each vent hole set comprises one or more vent holes. The vent holes communicate with the air inlet channels. The axes of the vent holes of each vent hole set are distributed in a radial mode on the section perpendicular to the axis of the corresponding air inlet channel with the projection point of the axis of the air inlet channel as the center. By the adoption of the gas protection device, the effect that the gas protection device is separated from a welding gun is achieved, welding operation is not affected by the gas protection device, and flexible operation as conventional welding can be achieved.

The invention discloses a surgical forceps interface device for virtual surgery training to achieve human-computer interaction. The surgical forceps interface device comprises a mounting base (1) and a surgical forceps device (6) arranged on the mounting base (1). The surgical forceps interface device is characterized in that the mounting base (1) is further provided with a plurality of active/passive hybrid drives and a link mechanism, and the surgical forceps device (6) is connected with the mounting base (1) through the active/passive hybrid drives and the link mechanism. The surgical forceps interface device provides a good solution scheme that active drives are used for compensating non-beneficial comprehensive damping force of passive force touch sense interaction equipment, and effectively solves the problem that the passive force touch sense interaction equipment can not simulate energy storage elements.

A lead frame with patterned conductive runs on the top surface to accept a wire bonded or flip-chip or COL configuration is disclosed. The top pattern is completed and the bottom is etched away creating cavities. The cavities are filled with a pre-mold material that lend structural support of the lead frame. The top is then etch through the lead frame to the pre-mold, except with the top conductive runs exist. In this manner the conductive runs are completed and isolated from each other so that the placement of the runs is flexible. The chips are mounted and the encapsulated and the lead frames are singulated. The pattern on the top and the bottom may be defined by first plated the patterns desired.

The invention discloses a multilevel modulation ultrasonic encoding single excitation method based on Golay complementary convolutional codes. The method includes the steps that a multi-element code C=A*B is generated for single encoding excitation by means of convolution operation of an orthocomplementation Golay (A,B) code binary sequence; amplitude modulation and phase modulation of the multi-element code C are achieved through an encoding controller, code element symbols are mapped into electric pulse signals with certain phases and amplitudes, and an ultrasonic probe is excited; excitation conversion factor conversion from C to A and from C to B is conducted on echo signals subjected to encoding excitation, two paths of echo signals are formed, the C code excited once indirectly generates the effect achieved by independent dual excitation of the A code and the B code, and the quasi single excitation technology is formed; the two paths of echo signals are subjected to pulse compression, and ideal encoding is achieved through vector synthesis; finally, complementary Golay (A,B) with the code length Lc being 8 is subjected to encoding excitation and decoding, the functions are simulated, and the encoding excitation effect is verified through FPGA hardware. Compared with a traditional method, echo gain and excitation efficiency are indirectly improved, and the method also has great advantages in the aspects of signal-to-noise ratio, flexibility and implementation performance.

A support rail for a robotic platform having a support structure of concrete, a lower metallic connection flange and an upper connection flange or a guide rail disposed on an external side of the support structure. The lower connection flange, on the one hand, and the upper connection flange or the guide rail, respectively, on the other hand, are connected by a rigid metallic exoskeleton structure provided on the external side of the support structure and surrounding at least partially or completely the support structure.

The invention discloses a scalpel interface device for virtual surgery training to achieve human-computer interaction. The scalpel interface device comprises a mounting base (1) and a scalpel device (14) arranged on the mounting base (1). The mounting base (1) is further provided with a plurality of active/passive hybrid drives and a link mechanism. The scalpel device (14) is connected with the mounting base (1) through the active/passive hybrid drives and the link mechanism. The scalpel interface device for virtual surgery training to achieve human-computer interaction is high in fidelity, and capable of simulating the phenomena of cutting and needling body tissue and other phenomena in the surgery process; the scalpel interface device provides a good solution scheme that active drives are used for compensating non-beneficial comprehensive damping force of passive force sense interaction equipment, and effectively solves the problem that the passive force sense interaction equipment can not simulate energy storage elements.

The invention discloses a portable foldable flight-adsorption inspection unmanned aerial vehicle. The portable foldable flight-adsorption inspection unmanned aerial vehicle comprises an unmanned aerial vehicle body, an optoelectronic system and an adsorption device, wherein the optoelectronic system and the adsorption device are disposed on the unmanned aerial vehicle body; the photoelectric system comprises a camera arranged on the unmanned aerial vehicle body and a corresponding control module; the adsorption device comprises a gripper seat, a plurality of flexible fingers, a drive rope anda gripper drive motor; the gripper seat is disposed at the top of the unmanned aerial vehicle body; and the multiple flexible fingers are uniformly distributed at the top of the gripper seat in the circumferential direction and kept in a collapsed state; a rotating shaft of the gripper drive motor can pull the flexible fingers to spread by driving a reel to wind the rope; and unmanned aerial vehicle wings can be automatically folded and opened through a folding mechanism. The unmanned aerial vehicle is easy to carry, and can be sucked and docked by the adsorption device, and the problems suchas poor cruising ability and low work efficiency of the unmanned aerial vehicle are fundamentally solved.

The embodiment of the invention discloses a method and system for converting a natural language into a structured query language. The method comprises the steps of obtaining a natural language question text input by a user; determining a conversion result of converting the input natural language question text into a structured query language according to the similarity between the input natural language question text and a natural language question in a preset data set; and if the target natural language problem does not exist in the preset data set, converting the input natural language problem text into a structured query language through a conversion algorithm model. By adopting the method of the invention, the access threshold of the structured database can be reduced, and non-technical personnel can conveniently and directly inquire and use the structured database.