1561 results about "Quadrilateral" patented technology

Several inventions are disclosed. A cell architecture using hexagonal shaped cells is disclosed. The architecture is not limited to hexagonal shaped cells. Cells may be defined by clusters of two or more hexagons, by triangles, by parallelograms, and by other polygons enabling a variety of cell shapes to be accommodated. Polydirectional non-orthogonal three layer metal routing is disclosed. The architecture may be combined with the tri-directional routing for a particularly advantageous design. In the tri-directional routing arraingement, electrical conductors for interconnecting terminals of microelectronic cells of an integrated circuit preferrably extend in three directions that are angularly displaced from each other by 60°. The conductors that extend in the three directions are preferrably formed in three different layers. A method of minimizing wire length in a semiconductor device is disclosed. A method of minimizing intermetal capacitance in a semiconductor device is disclosed. A novel device called a "tri-ister" is disclosed. Triangular devices are disclosed, including triangular NAND gates, triangular AND gates, and triangular OR gates. A triangular op amp and triode are disclosed. A triangular sense amplifier is disclosed. A DRAM memory array and an SRAM memory array, based upon triangular or parallelogram shaped cells, are disclosed, including a method of interconnecting such arrays. A programmable variable drive transistor is disclosed. CAD algorithms and methods are disclosed for designing and making semiconductor devices, which are particularly applicable to the disclosed architecture and tri-directional three metal layer routing.

A honeycomb structured body in which a plurality of porous ceramic members are combined with one another by interposing an adhesive layer, each of the porous ceramic members having a plurality of cells placed in parallel with one another in a longitudinal direction with a cell wall therebetween and having an outer edge wall on the outer edge surface thereof, wherein each of the porous ceramic members has a filling body which is provided so as to fill in at least one corner portion of at least one outermost cell of the porous ceramic members, a cross-sectional shape of the outermost cell at the face orthogonal to the longitudinal direction of the cells is an almost tetragon, and a cross-sectional shape of the filling body at the face orthogonal to the longitudinal direction of the cells is an almost right triangle.

A shock absorbing vehicle body structure in a vehicle includes a substantially quadrilateral front subsidiary frame comprised of left and right side members extending in a longitudinal direction of a vehicle body and connected at their front and rear ends to each other by a front cross member and a rear cross member. The front subsidiary frame is supported at its four corners on main frames for the vehicle body through rubber mounts and bolts. Upon full-lap collision of the vehicle, the left rear bolt is first broken, whereby the rear end of the left side member is separated from the main frame and then, the right rear bolt is broken, whereby the rear end of the right side member is separated from the main frame. The right and left side members are formed with different rigidities to a longitudinal load applied thereto, which causes the right and left rear bolts to break at different times, or with a time lag therebetween. Such a time lag decreases the peak value of deceleration of the vehicle at a time when the front subsidiary frame is separated from the main frames due to a full-lap collision of the vehicle.

A website display configured to emulate the look and feel of an application program is created using a border webpage and a content webpage. The border webpage comprises a table having a plurality of border cells surrounding a center cell. The center cell includes an inline frame configured for displaying the content webpage. The border cells each display a corresponding border image. The border images combine to form a border around the inline frame. The border surrounding the inline frame is preferably a four-sided border. The table and its cells are invisible when the border webpage is displayed. When a navigation command is received for accessing and displaying a second content webpage, the second content webpage is displayed in the inline frame in place of the first content webpage, while the border webpage remains static. A resize command for resizing the display area of the web browser, causes the display area and the border webpage and the content webpage to be proportionately resized. Preferably, scroll bars are suppressed by not allowing the display area to be resized below a minimum point at which scroll bars would normally be displayed. Each border image displayed in the border cells of the table may comprise repeated images that are tiled. Tiling the border images in this manner avoid distortion when the border images are resized. In response to resizing the border cells, the repeated images are retiled accordingly.

An ultrasonic imaging array has two independent, interleaved linear subarrays occupying a common array face. The subarrays are independently steerable and focusable in different imaging planes. The subelements making up the elements in of the subarrays is preferably quadrilateral. Adjacent subelements in each element are electrically connected via an interconnect portion such that the interconnect portion connecting each pair of adjacent subelements in each element is substantially linear and is aligned with the diagonals of the adjacent subelements. A preferred acoustic lens is curved in both azimuth and elevation directions, whereby the subarrays are independently focusable. By transmitting in one plane and simultaneously receiving in a different, orthogonal plane, a system including the array can image a 3-D region of interest (ROI). In a volumetric embodiment of the invention two orthogonal B-mode images of a structure within the ROI are displayed simultaneously. The user may then trace the outlines of the images and the system therefrom calculates the volume of the structure.

A floating power generation assembly has at least three floating units (3400) provided with power generation means (3402, 3404) and floating in a body of water. At least one of the three floating units (3400) is a tension leg platform. The assembly also comprises first anchors secured to a surface beneath the water, and first cables (3414, 3416) connecting the buoyant body (3400) to the first anchors. Second anchors are secured to the underwater surface and connected by second cables (3412) to the floating units (3400). The floating units (3400) are arranged substantially at the vertices of at least one triangle or quadrilateral.

A combined mobile container inspection system, comprising: a radiation source; a chassis; a rotatable deck provided at an end of the upper surface of said chassis and rotatable with respect to said chassis, provided with a parallelogram bracket formed by a hingedly-connected four-bar linkage mechanism, wherein the cross link of the parallelogram bracket extends to form a horizontal cross arm with detectors, the other end of said horizontal cross arm is connected with a vertical upright arm, which is vertical or parallel to said horizontal cross arm; and a sliding deck provided at the rear end of the rotatable deck and movable upwardly and downwardly, said sliding deck is provided, in turn, with the radiation source, the X-ray therefrom is always right in the face of the detectors provided in the horizontal cross arm and vertical upright arm, calibrator and collimator.

An image processing device (10) includes: a line segment extracting section (14) for generating a line segment image obtained by extracting contour line segments contained in a contour of a subject in a captured image; a candidate quadrilateral calculating section (15) for (i) putting at least one virtual line segment in the line segment image (ii) selecting four line segments from a set containing the at least one virtual line segment and the contour line segments, and (iii) identifying a quadrilateral defined by four straight lines containing respective selected four line segments; and an image correcting section (17) for correcting a distortion in perspective transformation of the captured image based on the quadrilateral identified by the candidate quadrilateral calculating section (15). With the configuration, the distortion of the subject can be corrected without manually adjusting a degree of correction, even in a case where the subject having sides is partially not contained in the captured image or the subject is not a document image.

Embodiments automatically generate an accurate network of watertight NURBS patches from polygonal models of objects while automatically detecting and preserving character lines thereon. These embodiments generate from an initial triangulation of the surface, a hierarchy of progressively coarser triangulations of the surface by performing a sequence of edge contractions using a greedy algorithm that selects edge contractions by their numerical properties. Operations are also performed to connect the triangulations in the hierarchy using homeomorphisms that preserve the topology of the initial triangulation in the coarsest triangulation. A desired quadrangulation of the surface can then be generated by homeomorphically mapping edges of a coarsest triangulation in the hierarchy back to the initial triangulation. This quadrangulation is topologically consistent with the initial triangulation and is defined by a plurality of quadrangular patches. These quadrangular patches are linked together by a (U, V) mesh that is guaranteed to be continuous at patch boundaries. A grid is then preferably fit to each of the quadrangles in the resulting quadrangulation by decomposing each of the quadrangles into k2 smaller quadrangles. A watertight NURBS model may be generated from the resulting quadrangulation.

The invention provides a spraying robot driven by multiple parallelogram links in parallel. The spraying robot comprises a pedestal (3), a big-arm driving motor (4), a small-arm driving motor (10), a pitch adjusting motor (8), a movable platform (18) and three paralleled parallelogram link mechanisms. The spraying robot is characterized in that the big-arm driving motor (4), the small-arm driving motor (10), and the pitch adjusting motor (8) are all arranged on one end of the pedestal (3), and the three paralleled parallelogram link mechanisms cooperate with one another to drive the movable platform (18). According to the invention, a three-parallelogram-link driving manner is employed, when the three parallelogram link mechanisms are designed, the maximum pressure angle is limited, in the working range, no matter the robot rotates to any position, the transmission performance of movements and forces can remain excellent.

The invention relates to a hydraulically-driven four-foot robot which belongs to the field of robots. The robot comprises a machine body (1) and four legs arranged on the machine body, wherein each leg consists of a first hydraulic cylinder body (2), a first hydraulic cylinder telescopic rod (3), a first parallelogrammic I connecting rod (4), a first parallelogrammic II connecting rod (5), a pelvic part (6), a second hydraulic cylinder body (7), a second hydraulic cylinder telescopic rod (8), a second parallelogrammic I connecting rod (9), a second parallelogrammic II connecting rod (10), thighs (11), a third hydraulic cylinder body (12), a third hydraulic cylinder telescopic rod (13), a third parallelogrammic I connecting rod (14), a third parallelogrammic II connecting rod (15), a crus (16), a spring (17), telescopic feet (18) and a soles (19). A telescopic four-connecting-rod joint transmission mechanism based on a parallelogram is adopted by the joint design of the hydraulically-driven four-foot robot, the joint control is simplified, and the moving performance of the foot type robot joints is improved.

A tetragonal ring shape aperture is formed in the common electrode on one substrate and a cross shape aperture is formed at the position corresponding to the center of the tetragonal ring shape aperture in the pixel electrode on the other substrate. A liquid crystal layer between two electrodes are divided to four domains where the directors of the liquid crystal layer have different angles when a voltage is applied to the electrodes. The directors in adjacent domains make a right angle. The tetragonal ring shape aperture is broken at midpoint of each side of the tetragon, and the width of the aperture decreases as goes from the bent point to the edge. Wide viewing angle is obtained by four domains where the directors of the liquid crystal layer indicate different directions, disclination is removed and luminance increases.

An integrated graphics pipeline system is provided for graphics processing. Such system includes a tessellation module that is positioned on a single semiconductor platform for receiving data for tessellation purposes. Tessellation refers to the process of decomposing either a complex surface such as a sphere or surface patch into simpler primitives such as triangles or quadrilaterals, or a triangle into multiple smaller triangles. Also included on the single semiconductor platform is a transform module adapted to transform the tessellated data from a first space to a second space. Coupled to the transform module is a lighting module which is positioned on the single semiconductor platform for performing lighting operations on the data received from the transform module. Also included is a rasterizer coupled to the lighting module and positioned on the single semiconductor platform for rendering the data received from the lighting module.

A technology for recognizing one or more quadrangles from an input image is disclosed. Edge areas are detected from the input image, lines corresponding to the edge areas are extracted, a line pair selected from the extracted lines is categorized according to a positional relationship between two lines included in the line pair, a line pair evaluation value is calculated for the line pair, a combination of two line pairs is selected, a quadrangle is generated from four lines included in the two line pairs selected, a quadrangle evaluation value is calculated for the quadrangle based on the categories and the line pair evaluation values of the two line pairs forming the quadrangle, and a quadrangle is selected based on the calculated quadrangle evaluation value.

A non-torque reactive air suspension exhibiting excellent roll stability characteristics is shown to include frame hangers mounted to frame rails extending longitudinally on opposite sides of a vehicle. Longitudinally extending beams are connected to the frame hangers at one end and extend parallel to the frame rails. At their other ends, the beams are joined by a crossbrace extending laterally across the vehicle centerline. In a central portion thereof, the beams have an axle pivot bore to which an axle clamp assembly is connected, the axle clamp assembly clamping a drive axle housing for the vehicle. The axle pivot bore is generally aligned with the drive axle. A control rod assembly is connected to suspension or frame components. Together with the beams, the control rod assembly forms a parallelogram configuration wherein the beams form the lower linkages of that configuration and the control rods included within the control rod assembly form the upper linkages of that configuration.

A system and method for shape recognition of hand-drawn objects is provided. A shape recognizer may recognize a drawing such as a diagram or chart from ink input by recognizing closed containers and / or unclosed connectors in the drawing. The closed containers may represent any number of shapes that may be recognized including circles, ellipses, triangles, quadrilaterals, pentagons, hexagons, and so forth. The unclosed connectors may be any type of connector including lines, curves, arrows, and so forth. Polylines may be used to approximate a skeleton of a connector for handling continuation strokes, overlapping strokes and over-tracing strokes of the skeleton. By using the present invention, a user may draw diagrams and flow charts freely and without restrictions on the hand-drawn input.

A sensing system is adapted to sense a pointer and calculate a location of the pointer. The sensing system includes a panel, a reflective element, an image sensor and a processor connected to the image sensor. The panel has a first plane and a first area located at the first plane. The first area is quadrangular and has a first boundary, a second boundary, a third boundary and a fourth boundary connected in order. The reflective element is disposed at the first boundary and located on the first plane. A second plane of the reflective element which is a reflective plane is substantially perpendicular to the first plane and mirrors the first area to form a second area. The image sensor sensing the first and the second areas is disposed at a corner at which the third boundary and the fourth boundary intersects and located on the first plane.

A combined mobile container inspection system, comprising: a radiation source; a chassis; a rotatable deck provided at an end of the upper surface of said chassis and rotatable with respect to said chassis, provided with a parallelogram bracket formed by a hingedly-connected four-bar linkage mechanism, wherein the cross link of the parallelogram bracket extends to form a horizontal cross arm with detectors, the other end of said horizontal cross arm is connected with a vertical upright arm, which is vertical or parallel to said horizontal cross arm; and a sliding deck provided at the rear end of the rotatable deck and movable upwardly and downwardly, said sliding deck is provided, in turn, with the radiation source, the X-ray therefrom is always right in the face of the detectors provided in the horizontal cross arm and vertical upright arm, calibrator and collimator.

A surface light source device and display utilize a light guide plate provided with micro-reflectors arranged in an orientation suitable for a plurality of input portions having point-like light emitters, respectively. A light guide plate 15 has a back face divided into areas ARA to ARC to each of which each input portion having each of LEDs 14A to 14C is shared. Micro-reflectors 19 in each of areas ARA to ARC are orientated as to be directed to each of LEDs 14A to 14C correspondingly, effecting an effective direction conversion. Emitted light is incident to a liquid crystal display panel generally at a right angle via a light diffusion sheet. Some micro-reflectors 19 in each of areas ARA to ARC may be arranged as to be directed to an adjacent input portion. Micro-reflectors may be shaped like quadrangle pyramid projections, cylindrical dents or V-shaped dents.

The invention provides a bionic anti-sticking lyophobic and oleophobic pasting film and belongs to the technical field of a polytetrafluoroethylene product. The surface of a thin film layer is provided with a first-grade convex hull type structure and a second-grade convex hull type structure, wherein each convex hull type structure is formed by convex hull structure units; the bottoms of the convex hull structure units are circular, regularly triangular, regularly quadrilateral or regularly hexagonal; and a convex hull is in a bowl shape, a cylinder shape, a cone shape, a triangular prism shape, a quadrangular shape or a hexagonal prism shape. The bionic anti-sticking lyophobic and oleophobic pasting film can be randomly bent, and is used on an irregular surface to convert a previous hydrophilic and oleophilic surface into a lyophobic and oleophobic surface, so that the bionic anti-sticking lyophobic and oleophobic pasting film can be widely applied to fields including automobiles, kitchen utensils, electronic products and the like.

Methods and systems for compressing and decompressing 3-D geometry data which includes regularly tiled surface portions. One compression method includes representing a surface portion as a "vertex raster", which comprises specifying an extent value and encoding the vertex parameter values of vertices within the surface portion. The extent of the surface portion specifies the arrangement of vertices within the surface portion, and allows the vertices to be properly assembled into drawing primitives during decompression. The encoded vertex parameter values may be encoded globally (by setting initial values and corresponding delta values), locally (on a per-vertex basis), or using a combination of these techniques. Absolute, delta encoding, or delta-delta encoding may be utilized for these parameter values. Vertex parameters which may be encoded in this manner include position, color, normals, z-displacement values, texture map coordinates, and surface material properties. Additionally, connectivity information may also be encoded using this compression method by specifying quad split bits and half-resolution edges. Quad split bits are used to tessellate a quadrilateral formed by neighboring vertices of a surface portion according to the direction of the strongest color change. Half-resolution edges are utilized to gradually shift from an area of high resolution to an adjacent surface portion represented in lower resolution. For graphical objects which include a plurality of adjacent surface portions, a step command is disclosed which allows data from one surface portion to be advantageously reused. Decompression of a vertex raster representation may comprise decoding the extent value, global parameter values, and a per-vertex stream of local parameter values.

A method having application for petroleum exploration or geological storage of generating a mesh of a faulted underground medium, comprising generating a hex-dominant mesh from faults and horizons in a form of a 3D triangulated surfaces. Each 3D triangulated surface is converted to a 2D triangulated surface onto which the faults are projected by an isometric unfolding technique. A regular two-dimensional grid pattern is generated for each 2D triangulated surface. The faults are accounted for by deforming quadrilaterals of the grid pattern intersected by projected faults. The deformed regular grid pattern is then converted to a 3D gridded surface and each quadrilateral which is crossed by a fault is converted into two triangles at a level of a diagonal. Finally, after iterating for all the 3D triangulated surfaces, the mesh is generated by creating links between the nodes of neighboring three-dimensional gridded surfaces with respect to the faults.

An expanded heat sink for transferring heat from an electronic display component to a path of cooling air is disclosed. A continuous sheet may define a series of channels where the cooling air is blown through the channels and along the continuous sheet. When viewed along the path of the cooling air and oriented horizontally, the continuous sheet may define a series of four-sided polygons having top, bottom, left side, and right side portions where either the top or bottom portions are absent from each polygon. The absent top portions may be supplied by a front plate or the rear portion of an electronic display. The absent bottom portions maybe supplied by a rear plate. One or more components of the electronic display may be placed in thermal communication with the sheet and / or front / rear plates to transfer heat from the components to the cooling air.

A tangential milling cutting insert having two identical opposing end surfaces with two identical opposing major side surfaces of a generally parallelogrammatic shape and two identical opposing minor side surfaces extending between them. Each end surface has a peripheral edge containing cutting edges and four corners of which two diagonally opposed corners are lowered and the other two are raised. Each end surface is provided with an abutment member having an abutment surface. In each cross section of the cutting insert taken in a plane parallel to a minor plane of the cutting insert, the abutment surface is closer to the median plane than a respective leading section of a major cutting edge.

A reticle has a vertical line; a horizontal line intersecting the vertical line at a center point; and a plurality of quadrilaterals. Each of the plurality of quadrilaterals intersects either the vertical line or the horizontal line to form first and second measuring points. Each of the first and second measuring points is spaced a predetermined distance from the center point.

Apparatus (10) for generating motion around a remote center of motion (RCM), comprising a distal link (L12, LR) arranged to revolve about the remote center of motion and to translate through the remote center of motion, a proximal link (L10, LI) arranged to revolve about a proximal center of motion (LCM), coupled to a base link, through a rotational joint (150) and a sliding joint (181), a first mechanism comprising a first link (L9, BE) pivotally coupled to the proximal link (L10) and to the distal link (L12) and operable to transfer motion of the proximal link relative to the proximal center of motion to a motion of the distal link relative to the remote center of motion by maintaining a parallelogram (PAR1), and a second mechanism operable to move the first link with two degrees of freedom in a plane parallel to the plane of motion of the proximal link, characterised in that the second mechanism comprises one link or a serial connection of links (L4, L8, L3, L7, L2, L6) connecting the base link to the first link, configured to have an orientation of instant motion which is different from an orientation of instant motion of the proximal link (L10), relative to the base link.

A sensing system includes a panel, a reflective element (RE), an image sensor (IS) and a processor electrically connected to the IS. The panel has a plane, a first area (FIA) having the first, second, third and fourth boundaries connected in order and a third area (TA) at the plane. The TA in the FIA is smaller than the FIA. The FIA and TA are quadrilaterals. The RE on the plane is disposed at the first boundary. A reflective mirror plane (RMP) of the RE perpendicular to the plane mirrors the FIA and TA to form a second area (SA) and a fourth area (FOA). The IS sensing the TA and FOA on the plane is disposed at the intersection of the third and fourth boundaries. An imaginary line passing through the IS, being perpendicular to the RMP and being located on the plane is outside the TA and FOA.