38 results about "Conformal map" patented technology

A conformal seal (20) for sealing air flow between a cooling airflow path and a hot gas flow path within a combustion turbine engine. The conformal seal (20) may be fitted within cooperating side slots of adjacent vane segments (10) within the combustion turbine engine. The conformal seal (20) may include an elongated metallic substrate (22, 40) forming an upper surface and a lower surface. A conformal coating (26, 44) may be deposited over one or both surfaces of the substrate (22, 40). The conformal coating (26, 44) may be deposited to a depth so that a point contact between the conformal coating (26, 44) and respective interior walls of the side slots wears the conformal coating (26, 44) to establish surface area contact there between. The surface area contact improves a sealing function between the conformal coating (26, 44) and the respective interior walls during operation of the combustion turbine engine.

Systems and methods for generating 2D texture coordinates for 3D surfaces meshes may assign initial 2D texture coordinates to each node within a mesh using dead reckoning, compute a conformal mapping solution to revise the texture coordinates dependent on the initial mapping, and store the texture coordinates for subsequent use in a graphics application (e.g., applying a texture and/or re-meshing a surface). The methods may include designating one node as the origin, determining the shortest distance from each other node to the origin, and computing texture coordinates for each other node in order of increasing distance to the origin. The dead reckoning operation may compute texture coordinates of each node dependent on the distance and direction of a vector formed between the node and a neighbor node to which texture coordinates have already been assigned. Isometric terms reflecting stretching or compression may be introduced following convergence by the conformal mapping.

A system and method for scanning for an object within a region using a conformal scanning scheme. The system may comprise a computer which includes a CPU and a memory medium which is operable to store one or more programs executable by the CPU to perform the method. The method may: 1) determine the characteristic geometry of the region; 2) generate a conformal scanning curve based on the characteristic geometry of the region by performing a conformal mapping between the characteristic geometry and a first scanning curve to generate the conformal scanning curve, i.e., mapping points of the first scanning curve to the characteristic geometry of the region; and 3) scan the region using the conformal scanning curve. These measurements of the region produce data indicative of one or more characteristics of the object. The method may also generate output indicating the one or more characteristics of the object.

An electromagnetic interference (EMI) and/or electromagnetic radiation shield is formed on a plurality of encapsulated modules by attaching a molded package panel to a process carrier (10) using a double side adhesive tape (12) before singulating the individual modules without separating them from the double side adhesive tape. By forming a conductive layer (50) over a mold encapsulant (16) and on the sidewalls of grooves (40-47) that are cut through the mold encapsulant (16) and underlying circuit substrate (14), the conductive layer (50) may be electrically coupled to one or more conductive connection pads (61-66) by virtue of the placement of the conductive connection pads at the periphery or side of the circuit substrate (14).

Methods of forming conformal films with increased density are described. The methods may be used to improve gap fill in semiconductor device manufacturing by eliminating seams and voids. The methods involve operating at high reactant partial pressure. Additionally, film properties may be further enhanced by optimizing the temperature of the substrate during exposure to the metal-containing and/or silicon-containing precursor gases commonly used in conformal film deposition techniques such as ALD and PDL.

The embodiment of the invention discloses an image correcting method and a camera. The image correcting method comprises the steps as follows: determining a target image shot by the camera; obtaining a field angle parameter of the camera; converting first right angle coordinates of target pixel points of the target image into first polar coordinates, wherein the target pixel points are all pixel points of the target image or partial pixel points meeting a first preset requirement; performing conformal mapping to the target pixel points so as to determine second polar coordinates of the target pixel points. The correcting method described in the embodiment could be used for automatically correcting the target image. The conformal mapping performed to the target image can hold the shape of the shot object so as to avoid the distortion of the shot object. If the target image contains a facial image, the correcting method showed by the embodiment could be used for automatically correcting the facial image without manual manipulation of a user.

ACA based-MLFMA-accelerated fast simulation modeling method for domain decomposition non-conformal mesh comprises the following steps: S1, according to the structure and material characteristics of the target, the target is divided into regions, and discretizing then the mesh on each different region, and separately dividing the mesh between adjacent regions to form non-conformal mesh; S2, separating the mesh between adjacent regions to form non-conformal mesh; S2, selecting appropriate basis function to simulate local electromagnetic current, and using integral equation operator to form matrix equation; S3, using ACA-MFLMA algorithm compresses the matrix equation and iterates quickly to accelerate the solution of the matrix equation, obtains the position induction coefficients of the local electromagnetic current, and then obtains the distribution of the induced electromagnetic current on the target. S4, taking the induced electromagnetic current as the secondary radiation source, theelectromagnetic field distribution in the near region and the scattering characteristics of the far field are calculated, and the electromagnetic field response characteristics of the target are analyzed. The advantages of the method are that it makes full use of the advantages of ACA and MLFMA, and greatly improves the capability of solving the engineering electromagnetic field characteristics.

The invention provides a method for parameterizing a quadrilateral grid in a conformal mode. The method is used for directly parameterizing a curved surface of the quadrilateral grid, and comprises the following steps that S11 a quadrilateral grid is input, S12 borders of the quadrilateral grid are parameterized with the length maintained to obtain a border condition, S13 an angle system of the quadrilateral grid is solved to obtain angle input of a conformal energy function, and S14 the conformal energy function is constructed, and the quadrilateral grid is grid-parameterized according to the conformal energy function. According to the method for parameterizing the quadrilateral grid in the conformal mode, the quadrilateral grid can be directly parameterized, not every quadrilateral needs to be divided to two triangles, and the curved surface is parameterized according to a triangular grid parameterizing method.

The invention relates to a quick analysis method of the electric performance of a conformal load-bearing array antenna under a dynamic load. The quick analysis method comprises the following steps of: (1) establishing a structural finite element model; (2) extracting the central position coordinate rn of an array antenna unit; (3) loading a position constraint to the finite element model, and extracting each-order frequency [Omega]i and a mode-of-vibration vector after modal analysis is carried out; (4) expressing the dynamic structure deformation of an antenna array as [Delta]r([Beta], t)=Pq(t); (5) extracting the central position offset amount of the antenna unit; (6) substituting the central position coordinate rn of the antenna unit and the central position offset amount [Delta]rn([Beta, t]) of the antenna unit into the far-field pattern computational formula of the conformal load-bearing array antenna, and obtaining a relational expression which expresses the influence of the structure deformation on the far-field pattern of the antenna under the dynamic load; and (7) carrying out taylor expansion on an exponential term exp(jk.[Delta rn]([Beta, t])) in the relational expression, taking first three orders, and writing the far-field pattern of the antenna into a form of the linear combination of the structure relevant item and the load relevant item of the antenna.

The invention discloses an exponential mapping-based design method of a retro-reflective optical invisibility cloak. Firstly, a two-dimensional x-y plane coordinate system is established, and conformal mapping is carried out on coordinates in a range of which a radius is R2; a plane wave is emitted in parallel from an x-axial negative direction to an x-axial positive direction; linear mapping under polar coordinates is carried out on a second quadrant and a third quadrant of the coordinate system, where the invisibility cloak is located, to enable the radius range to be mapped to R1-R2 from 0-R2; a first quadrant of the coordinate system is mapped, and a fourth quadrant of the coordinate system is mapped; then a metric tensor of deformed space and a dielectric tensor and a permeability tensor of an impedance matching medium provided by transformation optics are calculated according to the impedance matching medium and equivalent relationships of space geometry; and finally, a Z component in the permeability tensor is normalized, and an artificial metamaterial is selected and used according to dielectric tensor distribution and permeability distribution to manufacture the optical invisibility cloak. The method solves problems of invisibility for objects and extraction of information of retro-reflection behind the objects.

A method for fabricating a memory device with a self-aligned trap layer which is optimized for scaling is disclosed. In the present invention, a non-conformal film is deposited over the charge trapping layer to form a thick film on top of the core source/drain region and a pinch off and a void or a narrow channel at the top of the STI trench. An etch is performed on the non-conformal film to open pinch-off or widen the narrow channel in the non-conformal. The trapping layer is then completely or partially etched between the core cells. The non-conformal film is removed. And a top oxide is formed. The top oxide converts the remaining trap layer to oxide if the trapping layer is partially etched and thus isolate the trap layer.

There is provided a laser processing method of forming via holes 23 and 24 by removing processed layers including a flexible insulating base member 1, in which conformal masks 7 and 8a are provided on the surface, and an adhesive layer 12 having a higher absorbance in a wavelength area of processing laser and a lower decomposition temperature than the insulating base member 1, the method including radiating one shot of pulse light having a first energy density that can remove the insulating base member 1 by one shot without causing the deformation and penetration of a conducting film 2A, and subsequently radiating pulse light having a second energy density that is lower than the first energy density and can remove the rest of the processed layers by a predetermined number of shots without causing the deformation and penetration of the conducting film 2A.

The invention discloses a feature analysis method for a three-dimensional point cloud under hyperbolic conformal mapping. A universal framework and algorithm for conformal structure measurement in hyperbolic geometric space are provided, so that three-dimensional point clouds of any depletion can be conformally mapped into a hyperbolic Poincare model consistently, and a hyperbolic conformal feature descriptor is constructed by calculating coordinates of a basic domain in a Taihe miller space. Finally, the method provided by the invention is applied to a public face data set BU3DFER to realizeface expression recognition. Experimental results show that compared with conformal features of the Euclidean geometric space, the feature descriptors in the hyperbolic space provided by the inventionare not sensitive to singular point selection, and the recognition rate of facial expressions is effectively improved; compared with other non-conformal feature descriptors, the method provided by the invention has the advantage that the number of required facial feature points is remarkably reduced under the condition of keeping the same recognition rate.

The invention provides a conformal dual-band receiving and transmitting antenna which comprises an antenna radiating element, a metal base and a dielectric substrate. The antenna radiating element comprises a first metal piece and a second metal piece. The first metal piece with the resonance of 2205 MHz serves as a receiving antenna. The second metal piece with the resonance of 2295 MHz serves as a transmitting antenna. The metal base is located on the back of the dielectric substrate. The first metal piece and the second metal piece are connected to the front of the dielectric substrate through feeding points. The first metal piece and the second metal piece are each provided with a metal via hole I used for short circuits. The dielectric substrate is provided with metal via holes II corresponding to the metal via holes I in position. The conformal dual-band receiving and transmitting antenna has the fairly high isolation degree within the two frequency bands of 2.198-2.218 GHz and 2.273-2.320 GHz, namely, the return loss of a port of the antenna is smaller than minus 10 dB, and the isolation degree is smaller than minus 17 dB.

The invention discloses an electromechanical comprehensive analysis method for a conformal load-bearing antenna. The method comprises the steps of 1, obtaining surface test data of the conformal load-bearing antenna; 2, building an error information mathematic model in MATLAB; 3, importing the error information mathematic model in CAD to generate a three-dimensional polygonal curved surface grid model; 4, obtaining an error structure model in a *.igs format through polygonal grid-grid-curved surface-entity four-step conversion; 5, building an ideal antenna electromagnetic analysis model, and importing the error structure model to obtain an antenna electromagnetic analysis model; and 6, according to the antenna electromagnetic analysis model, calculating electric performance parameters of the antenna, and if calculation precision requirements are met, finishing calculation, otherwise, repeating the steps 1-6 until the requirements are met. The method has the benefits that (1) the problem of separation of structure analysis and electromagnetic analysis of a planar slot antenna is effectively solved; (2) the modeling cycle of a whole complex antenna is shortened; and (3) the problem of mismatch between structure grids and electromagnetic grids of the conformal load-bearing antenna is effectively solved.

The invention belongs to the field of computer vision, and discloses a three-dimensional model deformation algorithm based on quasi-conformal mapping. The method comprises the following steps of firstly, parameterizing a three-dimensional model to a two-dimensional plane disc by utilizing the quasi-conformal mapping, secondly, adopting a quasi-common iterative algorithm to calculate the mapping between the two planes, and obtaining a deformed two-dimensional model, and finally, restoring the deformed two-dimensional model into a three-dimensional model meeting constraint conditions as much aspossible by adopting a 2D-to-3D model restoration algorithm. According to the present invention, the problems that an existing model is low in utilization rate, the number of control points needing tobe operated by a deformation algorithm is large, the model processing effect on skeletons is poor, the differential coordinate deformation technology is sensitive to rotation, and the direct deformation on a three-dimensional model is difficult, are solved. Compared with a traditional mapping method, the method is simple, and keeps more local details of the source mode. The method is suitable forthe three-dimensional model deformation based on a single image, and is suitable for the deformation of a model with any boundary. The method can be applied to the fields of animation, cosmetic surgery, medicine, geometric modeling and the like.

The invention discloses a miniaturized cylindrical conformal microstrip array antenna. The miniaturized cylindrical conformal microstrip array antenna comprises a metal cylindrical conformal body (1),a rectangular dielectric substrate (2) and a metal reflection grounding layer (3) fully attached to the lower surface of the dielectric substrate (2), wherein the dielectric substrate (2) is bent tobe on the outer surface of the metal cylindrical conformal body (1) in a conformal mode in the length direction; even number of E-shaped metal matching units (41, 42 until 438) are uniformly distributed on the upper surface of the dielectric substrate (2) along the circumferential direction of the metal cylindrical conformal body (1); and the antenna also comprises a feeding network which consistsof a feeding port (8), microstrip matching lines (5, 7) and a microstrip connecting line (6). The miniaturized cylindrical conformal microstrip array antenna is small in size, simple and compact in structure and high in gain.

The invention provides an image video scene content conformal mapping sparse representation method. The method comprises the following steps: 1) inputting an original image or video and carrying out sampling in a characteristic space; 2) calculating K nearest neighbor of each sample and establishing a local full adjacent map and calculating the distance between adjacent samples; 3) according to conformal mapping rules, combining the conformal mapping rules with the sparse representation method and learning a dictionary having a conformal property; and 4) carrying out reconstruction on the original image or video by utilizing the dictionary. According to the method, by introducing the conformal mapping rules, angle information between the adjacent samples is kept to the maximum degree, and the dictionary having more powerful presentation capability is obtained. Meanwhile, conformal mapping drives the adjacent samples to use the similar dictionary to carry out reconstruction, so that the dictionary is allowed to be more concise and compact. The method has a wide application prospect in the technical field of picture processing, computer vision and reality augmentation.

An embodiment of the invention provides a transmission type passive repeater having two or more antenna arrays, each array comprised of a plurality of antenna elements. Each antenna array has an associated region. An aperture is defined by the antenna arrays with which energy at respective antenna arrays passes between each of the regions. Another embodiment of the invention provides a reflective passive repeater having an aperture. Energy received at the aperture is reflected back from the aperture. The aperture is configured to provide a conformal mapping between two regions as determined by complex coupling by individual antenna elements.

Methods for determining a target thickness of a conformal film with reduced uncertainty, and an integrated circuit (IC) chip having a conformal film of the target thickness are provided. In an embodiment, a first critical dimension of a structure disposed on a wafer is measured. Said structure has at least one vertical surface. A first conformal film is deposited over the structure covering each of a horizontal and the vertical surface of the structure. A second critical dimension of the covered structure is then measured. The target thickness of the conformal film is determined based on difference between the first CD measured on the structure and the second CD measured on the covered structure.