463results about How to "Easy to decouple" patented technology

A system and method of controlling quadrotor air vehicles (QRAV) that may include an additional two degrees of freedom for each of the four propellers of the QRAV. Each of the four rotors may be allowed to rotate (tilt) around two local axes selected from the x-axis (roll), y-axis (pitch), and z-axis (yaw). Control of the quadrotor including the additional two degrees of freedom allows thrust of each rotor to be direct in any direction of a semi-sphere. As a result, total control inputs of the QRAV may be increased to twelve, enabling smooth control to achieve superior and precise maneuverability. Additionally, the system and method is fault tolerant and capable of handling failures of any of the rotors. Commands to the propellers may be fully decoupled and achieved independently thereby giving pilots better control to execute difficult maneuvers.

A method for efficient and fast implementation of context-based adaptive binary arithmetic encoding in H.264 / AVC video encoders is disclosed. The H.264 / AVC video standard supports two entropy coding mechanisms. These include Context Adaptive Binary Arithmetic Coding (CABAC) and Context Adaptive Variable Length Coding (CAVLC). The entropy coding efficiency of CABAC exceeds that of CAVLC by a clear margin. The method further provides techniques that make the implementation of CABAC on digital signal processors (DSPs) and other processing devices significantly faster. In one aspect, the method increases decoupling between the binarization process and the arithmetic encoding process from bit level to single or multiple syntax element(s) level. The binarized data is provided to the arithmetic encoding engine in bulk, thereby significantly reducing the overhead due to procedure calls. In another aspect, a CABAC arithmetic encoding engine format is provided which decreases data writing overhead and better exploits parallelism in the encoding process. This aspect is particularly advantageous to, for example, very long instruction word (VLIW) DSPs and media processors. In yet another aspect, the method discloses efficient CABAC binarization schemes for syntax elements.

A method and processor for providing context-based adaptive binary arithmetic CABAC coding. Binarization is performed on one or more syntax elements to obtain a binary sequence. Data bits of the said binary sequence are provided to an arithmetic encoding unit in bulk. Binarization is performed on one or more syntax elements to generate exp Golomb code by converting mapped syntax-element values to corresponding floating point type values. Re-normalization of CABAC encoding is performed by restructuring the re-normalization into two processing units including an arithmetic encoding unit and a bit writing unit. The bit writing unit is configured to format signal bits into a multiple-bit sequence, and write multiple bits simultaneously during an execution of a bit writing loop.

A headgear assembly is provided with an integrated music or other sound player supportable therein. The headgear assembly includes a headband or cap with pouches therein for various portions of the music player. In particular, a left speaker pouch is provided for a left speaker, a right speaker pouch is provided for a right speaker and a player pouch is provided for a sound player. A wire harness is also provided to preferably removably attach the speakers to the sound player. The headband or cap with the pouches therein holds the player and speakers directly adjacent a head of the user, and with the speakers directly over ears of the user. Controls on the player are accessed through a window in an outer panel of the headband or cap to allow user access. The player, wire harness and speakers are all substantially concealed within the headgear assembly.

Systems and methods which utilize a symmetrical partially coupled microstrip slot feed patch antenna element configuration to provide highly decoupled dual-polarized wideband patch antenna elements are shown. Embodiments provide a microstrip slot feed configuration in which a slot of a first signal feed is centered with respect to the patch and further provide a microstrip slot feed configuration in which slots of a second signal feed are symmetrically disposed with respect to the center of the patch and at positions near the edges of the patch. The microstrip feed utilized in communicating signals with respect to the slots of the second signal feed is adapted to provide signals of substantially equal amplitude and 180° out of phase with respect to each other according to embodiments. The second signal feed configuration utilized according to embodiments provides partial coupling between the patch and the second signal feed.

An LED chip comprising an electrically conductive and radioparent substrate, in which the epitaxial layer sequence (3) is provided on substantially the full area of its p-side (9) with a reflective, bondable p-contact layer (6). The substrate (2) is provided on its main surface (10) facing away from the epitaxial layer sequence (3) with a contact metallization (7) that covers only a portion of said main surface (10), and the decoupling of light from the chip (1) takes place via a bare region of the main surface (10) of the substrate (2) and via the chip sides (14). A further LED chip has epitaxial layers only. The p-type epitaxial layer (5) is provided on substantially the full area of the main surface (9) facing away from the n-conductive epitaxial layer (4) with a reflective, bondable p-contact layer (6), and the n-conductive epitaxial layer (4) is provided on its main surface facing away from the p-conductive epitaxial layer (5) with an n-contact layer (7) that covers only a portion of said main surface (8). The decoupling of light from the chip (1) takes place via the bare region of the main surface (8) of the n-conductive epitaxial layer (4) and via the chip sides (14).

The invention relates to an electric machine tool, in particular, having the construction of a pistol, comprising a drive unit (10) and a transmission unit (11). At least the drive unit (10) is mounted on an intermediate flange and is provided with a toothed shaft (14) in order to drive a drive train. According to the invention, the intermediate flange is distributed on the drive side and the transmission side of the bearing bridge element (12, 13), which are connected together via a vibration dampening device (15).

The invention provides a motion and still isolation master-slave cooperative control double superior satellite platform. The platform comprises a plurality of magnetic suspension mechanisms, a load cabin and a service cabin, wherein the load cabin is connected with the service cabin through the magnetic suspension mechanisms; the butt joint faces of the magnetic suspension mechanisms opposite to the load cabin and the service cabin are symmetrically spaced from one another in parallel or vertically; the center point connecting lines of symmetrically arranged magnetic suspension mechanisms are perpendicular to the mass center connecting line of the load cabin and the service cabin. The load cabin and the service cabin are independent of each other in structure, wherein the load cabin is provided with a magnetic suspension mechanism magnet part and is a still cabin section, the service cabin is provided with a magnetic suspension mechanism coil part and is a motion cabin section, the two cabins are not in contact through the non-contact magnetic suspension mechanisms, the service cabin vibrates and the interference is not transmitted to the load cabin, so that the effect that the effective load keeps still in a moving environment and the motion and the still of the two cabins are isolated is achieved.

An apparatus or mounting an optical element in an optical system, in particular a mirror or a lens, in a projection exposure machine, in particular a projection lens in semiconductor lithography, is connected to an external base structure with the aid of at least three articulation sites that are arranged on the circumference of the optical element and at which a bearing device acts in each case, wherein the bearing device has at least one bending element, resembling a leaf spring, arranged tangentially to the optical element, and at least one bending element, resembling a leaf spring, arranged in the radial direction relative to the optical element.

The invention discloses a field programmable gate array-based (FPGA-based) multi-axis servo motor current loop control system and a control method. The control system comprises a parallel bus communication module, an analog-digital (AD) sampling control module, a vector transformation module, a complex vector adjuster, a coder feedback signal processing module, a sine-cosine calculation module, a space vector pulse width modulation (SVPWM) operation module, a pulse width modulation (PWM) standard output module, a time sequence planning module and a current modulation module, pure hardware logic is adopted to realize, and the synchronous control of a multi-axis alternative-current servo motor current loop can be independently completed; meanwhile, integrating the concept of a production line and a time division multiplexing, the invention provides a multi-axis time sequence control method, which can improve the FPGA resource utilization rate and the operation speed; and due to the adoption of the control system and the control method, while the current loop adjusting time is remarkably shortened, different application requirements such as high-speed high-precision servo drive, multi-axis synchronous drive and control of a servo motor with small winding inductance can be met.

An LED chip comprising an electrically conductive and radioparent substrate, in which the epitaxial layer sequence is provided on substantially the full area of its p-side with a reflective, bondable p-contact layer. The substrate is provided on its main surface facing away from the epitaxial layer sequence with a contact metallization that covers only a portion of said main surface, and the decoupling of light from the chip takes place via a bare region of the main surface of the substrate and via the chip sides. A further LED chip has epitaxial layers only. The p-type epitaxial layer is provided on substantially the full area of the main surface facing away from the n-conductive epitaxial layer with a reflective, bondable p-contact layer, and the n-conductive epitaxial layer is provided on its main surface facing away from the p-conductive epitaxial layer with an n-contact layer that covers only a portion of said main surface. The decoupling of light from the chip takes place via the bare region of the main surface of the n-conductive epitaxial layer and via the chip sides.

The invention discloses a Chinese massage robot, relating to the field of Chinese massage mechanical and automatic devices. The Chinese massage robot is characterized by comprising a bed body (16), a spatial six degrees of freedom main body mechanism and a massage hand (15) and can realize a palm-rubbing technique, a scrubbing method, a pushing manipulation, a wiping manipulation, a pressing manipulation, a pointing method, a finger-nail pressing method, a clapping method, a striking method, a rebounding method, a rolling method, a palm-kneading method, a finger-kneading method, a tremble manipulation, a shaking manipulation, a holding method, a kneading method, a plucking method, a pushing method, a twisting method, a pulling and turning method, a stretching method and other general single-hand and dual-hand massage methods. The invention has the advantages of simple structure, high rigidity, small size, light weight, low cost, large motion space, sensitive and quick action, favorable decoupling, real-time and dynamic response characteristics of system control, and the like.

An energy conditioner structure comprising a first electrode (120), a second electrode (80), and a shield structure (70, 110, 150) provides improved energy conditioning in electrical circuits. The structures may exist as discrete components or part of an integrated circuit. The shield structure in the energy conditioner structure does not electrically connect to any circuit element.

The invention relates to a device for displacing and positioning an object in a space, having at least three actuating arms that can pivot about a transmission axis. Each arm is connected to a motor unit / transmission unit. A carrier element is provided in order to arrange at least one gripping element for gripping the object. Each actuating arm, on the free ends thereof, has a first articulated axis that is parallel to the transmission axis with first articulated parts arranged at a distance from each other, of a first ball joint. The carrier element has a second articulated axis associated with each actuating arm with first articulated parts that are arranged at a distance in relation to each other, of a second ball joint. The first articulated axis is connected to the second articulated axis by a pair of connecting bars which include terminal second articulated parts. The terminal second articulated parts of the connecting bars form the first and second ball joints with the first articulated parts on the first articulated axis and the first articulated parts on the second articulated axis. The connecting bars for stabilizing the ball joints are connected together. According to the invention, the connecting bars are made of an essentially elastic material and are connected together by at least one prestressing element made of an essentially stiff material.

A medical massage robot for the surgical department of traditional Chinese medicine is composed of 5-freedom parallel mechanism, sensors and control system. Said 5-freedom parallel mechanism consists of fixed platform, movable platform and 5 branches consisting of 4 same ones and one different for simulating 6 massage operations. Its advantages are high rigidity, dynamic characteristics, sensitivity and flexibility.

The invention relates to a device (1) for damping torsional vibrations, having a driving and a driven component (4, 7). Provision is made in this case to provide between the components individual magnets (16, 17) which lie opposite each other and can be displaced in a limited manner with respect to each other in an angular range, the torsional capacity of the two components with respect to each other being limited by mechanical stops (22).

An interposer, located between an integrated circuit having power, ground and signal connections and a ceramic substrate having power, ground and signal connections, that includes an oxide layer formed on a polished surface of a silicon substrate, a thin film dielectric capacitor formed on the oxide layer, a plurality of metallized that electrically connect to either of the electrodes of the thin film dielectric capacitor, and vias than conduct power, ground and signals between a the ceramic substrate and the integrated circuit. The interposer connects the metallized vias to the integrated circuit by solder connections and also connects the vias conducting power, ground and signals from the ceramic substrate to the interposer by solder connections. The dielectric of the thin film dielectric capacitor may be selected from the group of high-K titanates, such as, barium zirconate titanate, barium strontium titanate, pure barium titanate, barium titanate modified with Pb, Nb, W, Ca, Mg, and Zn, lead titanate, lead zirconate titanate, and polycrystalline lanthanum-modified lead zirconate titanate, or other high-K dielectrics, such as, lead niobate and its derivatives, and lead tungstate and its derivatives.

The object of the present invention is a crosspolar multiband panel antenna comprising, within a single chassis, at least two antenna arrays operating within different frequency bands, each antenna array comprising at least two cross-polarization radiating elements separated by a distance inter-elements, each radiating element comprising a first polarization and a second polarization, the second polarization being orthogonal to the first polarization. The first polarization and the second polarization of each antenna array are physically separated by a distance equal to or greater than the distance inter-elements. The first polarizations and the second polarizations of each antenna array being respectively separated by one another by the distance inter-elements.

Embodiments of the present invention describe a MALDI (matrix-assisted laser desorption and ionization) sample plate body that includes a reusable sample plate and a sample plate adapter that are releasably coupled to one another. In one particular embodiment, the sample plate and the sample plate adapter are releasably coupled to one another to form the MALDI sample plate body by a latch formed by a spring-loaded hook within the sample plate adapter and a recess shaped to accept the hook within the sample plate. The MALDI sample plate body may be formed by aligning the sample plate with the sample plate adapter and coupling the sample plate to the sample plate adapter to releasably couple the sample plate to the sample plate adapter.

The invention discloses a spoke type parallel piezoelectricity six-dimensional force sensor and a measuring method. The spoke type parallel piezoelectricity six-dimensional force sensor comprises an upper cover and a lower cover. The spoke type parallel piezoelectricity six-dimensional force sensor is characterized in that a first annular groove is formed in the lower surface of the upper cover, symmetrical wire guiding holes are formed in the lower surface of the upper cover, eight groups of first spokes are evenly distributed on the upper cover in a concentric mode, a second square groove is formed in the lower surface of each spoke, eight groups of second spokes are evenly distributed on the lower cover in a concentric mode, a third groove symmetrical with each corresponding second square groove is formed in the upper surface of each second spoke, a force sensitive element is arranged on the upper surface of each third groove, the upper surface of each force sensitive element is in contact with the surface of each corresponding second square groove, a hollow screw is installed in each wire guiding hole, four first screw holes are evenly formed in the upper cover in a symmetrical and concentric mode, four first screw holes are evenly formed in the lower cover in a symmetrical and concentric mode, and the upper cover, the force sensitive elements and the lower cover are fit together after four pre-tightening screws penetrate through the first screw holes. The spoke type parallel piezoelectricity six-dimensional force sensor is good in manufacturability and stability, easy to manufacture, long in service life, simple in operation, convenient to use, and low in cost.

The invention discloses a four-rotor flight control method based on a sliding mode variable structure. First, based on the fact that controlled variables respond to control input at different speeds, the controlled variables are classified as very fast variables, fast variables and slow variables, and a four-rotor unmanned helicopter dynamics model is divided into three subsystems, namely, a very fast loop system, a fast loop system and a slow loop system; then, a control law based on a dynamic inversion control method is designed for the very fast loop system, the fast loop system and the slow loop system respectively; and finally, a control law based on a variable sliding mode structure control method is designed for the very fast loop system, the fast loop system and the slow loop system respectively to enhance the robustness of the system to parameter perturbation and external disturbance. The method of the invention can improve the static characteristic and dynamic characteristic of four-rotor unmanned helicopters.

A three-component standard vibration table based on a lock type decoupling device is disclosed. The vibration table comprises: a pedestal, an X-direction electromagnetic vibration table, a Y-direction electromagnetic vibration table, a Z-direction electromagnetic vibration table and a three-dimensional vibration platform. The each electromagnetic vibration table is connected with the three-dimensional vibration platform through a motion decoupling apparatus. The motion decoupling apparatus comprises: a first frame and a second frame. The first frame and the second frame are formed by outer sides, inner sides, first connection sides and second connection sides, wherein the first connection sides and the second connection sides are located between the outer sides and inner sides. The outer sides are opposite to the inner sides. The inner side of the frame is inserted into the other frame. Minimal gaps exist between the inner side of the first frame and the inner side and the outer side of the second frame. An interval is arranged between the inner side of the second frame and the outer side of the first frame. An airflow channel is communicated with an external compressed air source. The outer side of the first frame is connected with the electromagnetic vibration tables and the outer side of the second frame is connected with the three-dimensional vibration platform. A structure is simple. Installation is convenient. A decoupling effect is good. The vibration table is suitable for a vibration calibration system.

The invention discloses an elastic measuring head in a three-dimensional micro-nano contact scanning probe. The elastic measuring head is characterized in that: a cross suspension piece is arranged in the center of a fixed circular ring; a cantilever spring plate is connected to the arm end of each cantilever in the cross suspension piece, and the other end of each cantilever spring plate is connected with the fixed circular ring to form a suspension structure of the cross suspension piece in the fixed circular ring; on a side plane, towards the inside of a cylinder body, of the cross suspension piece, a center plane reflective mirror is arranged in the center of the cross suspension piece, and a cantilever plane reflective mirror is arranged on the arm end part of at least one cantilever which is positioned at the cross suspension piece; and on a side plate, towards the outside of the cylinder body, of the cross suspension piece, a scanning probe is fixedly arranged in the center of the cross suspension piece, and a measuring ball positioned at the foremost end of the scanning probe is fixedly arranged on the end part of the scanning probe. The elastic measuring head disclosed by the invention can obtain detection effects with wide measuring range, high accuracy, high sensitivity and small measured force.

A positioning system for use in a wind turbine is described herein. The wind turbine includes a rotor, a drive train assembly that is supported from a support frame, and a drive shaft rotatably coupled between the rotor and the drive train assembly. The positioning system includes an alignment assembly that is coupled to a component of the drive train assembly. The alignment assembly is configured to adjust an orientation of the component with respect to the drive shaft with the drive shaft at least partially inserted within the component.

The invention discloses a piezoelectric type six-dimensional force sensor with an adjustable load sharing ratio and a test method thereof, which belongs to the field of sensors and measurement and control thereof. The invention particularly relates to the measurement of six-dimensional force on a shaft in different measuring ranges. The six-dimensional force sensor comprises an upper cover, four force sensing elements for sealing and leading out conducting wires, a lower body, load sharing rings, positioning rings and four pre-tightening screws. The adopted test method adjusts the ratio of the summation of stresses on the four force sensing elements to the stress on a tested shaft by adjusting the mounting positions of the four force sensing elements and selecting a series of modularized load sharing rings and positioning rings. The piezoelectric type six-dimensional force sensor adjusts the load sharing ratio to achieve the aim that the same sensor measures the six-dimensional force with different measuring ranges on the shaft in a certain shaft diameter range; and the piezoelectric type six-dimensional force sensor has good rigidity, high sensibility, a low cost and easy commercialization, and the test method is simple to operate, is convenient to use and is safe and reliable.

A diode-addressed color display comprising an UV-diode and a phosphor of the general formula LnL3X2, wherein Ln=Eu3+, Tb3+, Tm3+, Dys3+, Sm3+, L=4-R-4'-benzophenone carboxylic acid, wherein R=phenyl, benzyl, CH3, CF3, C2H5, F, Cl, OCH3, CH3CO; 4-R-4'-benzophenone acetylacetonate, wherein R=phenyl, benzyl, CH3, CF3, C2H5, F, Cl, OCH3, CH3CO; 4-acetophenone carboxylic acid, 4-trifluoroacetophenone carboxylic acid, 4-acetophenone acetylacetonate or 4-trifluoroacetophenone acetylacetonate and X=+E,fra 1 / 2+EE phenanthroline, +E,fra 1 / 2+EE diphenyl phenanthroline, +E,fra 1 / 2+EE 4-Cl-phenanthroline, +E,fra 1 / 2+EE bipyridine, +E,fra 1 / 2+EE ethylenediamine, triphenyl phosphineoxide, trimethyl phosphineoxide, triethyl phosphineoxide, +E,fra 1 / 2+EE diethylene glycol-dimethylether (diglyme) or ethanol.

The invention provides a four-vibration table two-direction joint vibration device. The device comprises a tested piece, a horizontal vibration table, a vertical vibration table, a test clamp which can be loaded bi-directionally, a mechanical decoupling device and a suspension device thereof, a vibration table switching adjustment device and a vibration table support seat. By using the device, horizontal vibration excitation and vertical vibration excitation can be applied to the tested piece at the same time; moreover, the movement in the two directions can be decoupled well by the mechanical decoupling device and the suspension device thereof so that the eccentric moment of the vibration table is avoided; simultaneously, the problem of freely adjusting the positions of the vibration tables in the two directions is also solved by the vibration table switching adjustment device; and therefore, the aim of performing a four-vibration table two-direction joint vibration test is fulfilled.