3275 results about "Design technology" patented technology

A design methodology is provided for creating biomaterial scaffolds optimized for in vivo function with any 3D anatomic shape. The method creates all designs using voxel based design techniques. It also provides for optimization of implant and scaffold microstructure to best match functional and biofactor delivery (including cells, genes and proteins) requirements. The voxel based design techniques readily allow combination of any scaffold or implant microstructure database with any complex 3D anatomic shape created by CT or MRI scanners. These designs can be readily converted to formats for layered manufacturing or casting.

A semiconductor structure includes a first semiconductor die and a second semiconductor die identical to the first semiconductor die. The first semiconductor die includes a first identification circuit; and a first plurality of input / output (I / O) pads on the surface of the first semiconductor die. The second semiconductor die includes a second identification circuit, wherein the first and the second identification circuits are programmed differently from each other; and a second plurality of I / O pads on the surface of the second semiconductor die. Each of the first plurality of I / O pads is vertically aligned to and connected to one of the respective second plurality of I / O pads. The second semiconductor die is vertically aligned to and bonded on the first semiconductor die.

An integrated circuit is provided with a scan chain including a scan flip-flop and a dummy block. The dummy block has a clock terminal receiving a clock signal, a scan input terminal connected to a scan data line within the scan chain, and a scan output terminal connected to another scan data line within the scan chain. The dummy block is configured to output data on the scan output terminal in response to input data fed to the scan input terminal, not responsively to the clock signal.

Signal construction, detection and estimation techniques for use in uplink timing synchronization and access control in an orthogonal frequency division multiplexed (OFDM) wireless system or other type of wireless communication system. In accordance with an illustrative embodiment of the invention, timing and access signals to be transmitted in designated timing and access intervals are constructed from orthogonal multitone signals. The multitone signals may be similar to multitone signals used in OFDM data transmission, except that a cyclic prefix associated with reception of the signals in a base station is extended to cover the timing errors of mobile stations not yet synchronized. The invention also provides design techniques which optimize the time resolvability and peak-to-average ratio of the multitone signals, an efficient fast Fourier transform (FFT) based technique for maximum likelihood timing estimation, and a robust linear filtering technique for averaging timing estimates from different synchronizations.

There are many inventions described and illustrated herein. In one aspect, the present invention is directed to a technique of, and system for simulating, verifying, inspecting, characterizing, determining and / or evaluating the lithographic designs, techniques and / or systems, and / or individual functions performed thereby or components used therein. In one embodiment, the present invention is a system and method that accelerates lithography simulation, inspection, characterization and / or evaluation of the optical characteristics and / or properties, as well as the effects and / or interactions of lithographic systems and processing techniques. In this regard, in one embodiment, the present invention employs a lithography simulation system architecture, including application-specific hardware accelerators, and a processing technique to accelerate and facilitate verification, characterization and / or inspection of a mask design, for example, RET design, including detailed simulation and characterization of the entire lithography process to verify that the design achieves and / or provides the desired results on final wafer pattern. The system includes: (1) general purpose-type computing device(s) to perform the case-based logic having branches and inter-dependency in the data handling and (2) accelerator subsystems to perform a majority of the computation intensive tasks.

In contrast to a conventional planar CMOS technique in design and fabrication for a field-effect transistor (FET), the present invention provides an SGT CMOS device formed on a conventional substrate using various crystal planes in association with a channel type and a pillar shape of an FET, without a need for a complicated device fabrication process. Further, differently from a design technique of changing a surface orientation in each planar FET, the present invention is designed to change a surface orientation in each SGT to achieve improvement in carrier mobility. Thus, a plurality of SGTs having various crystal planes can be formed on a common substrate to achieve a plurality of different carrier mobilities so as to obtain desired performance.

A transmitter employing a sigma delta modulator having a noise transfer function adapted to shift quantization noise outside at least one frequency band of interest. A technique is presented to synthesize the controllers within a single-loop sigma delta modulator such that the noise transfer function can be chosen arbitrarily from a family of functions satisfying certain conditions. Using the novel modulator design technique, polar and Cartesian (i.e. quadrature) transmitter structures are supported. A transmitter employing polar transmit modulation is presented that shapes the spectral emissions of the digitally-controlled power amplifier such that they are significantly and sufficiently attenuated in one or more desired frequency bands. Similarly, a transmitter employing Cartesian transmit modulation is presented that shapes the spectral emissions of a hybrid power amplifier such that they are significantly and sufficiently attenuated in one or more desired frequency bands.

MEMS-based, computer system, clock generation and oscillator circuits and LC-tank apparatus for use therein are provided and which are fabricated using a CMOS-compatible process. A micromachined inductor (L) and a pair of varactors (C) are developed in metal layers on a silicon substrate to realize the high quality factor LC-tank apparatus. This micromachined LC-tank apparatus is incorporated with CMOS transistor circuitry in order to realize a digital, tunable, low phase jitter, and low power clock, or time base, for synchronous integrated circuits. The synthesized clock signal can be divided down with digital circuitry from several GHz to tens of MHz—a systemic approach that substantially improves stability as compared to the state of the art. Advanced circuit design techniques have been utilized to minimize power consumption and mitigate transistor flicker noise upconversion, thus enhancing clock stability.

The invention relates to a temperature rise analytical method for predicting temperature of a permanent magnet in a permanent magnet synchronous motor (PMSM), belonging to the application electrical engineering design field; the method is characterized in that: distributed heat source of a motor is analyzed by a filed-circuit compact coupling method, comprising eddy current loss in the permanent magnet, iron loss in an iron core and copper loss in armature; on the consideration of precision requirements, the coupling analysis of a magnetic field and a temperature filed can be realized by single-way coupling mode. A thermal model of the permanent magnet synchronous motor is built based on a mixing method of a novel equivalent heat network and a finite element, heat parameters are rationally selected by adopting a combining mode of experimental measurement and empirical formula, the heat transferring coefficient and cooling condition of the motor are described completely, a stator and a rotor can be systematically combined by adopting air gap joints in the heat network, the stator and rotor unified temperature rise model is formed, the difficulty of measuring air gap temperature is avoided, material parameters are adopted at the practical working temperature, so as to lead the analysis to be rational; the accurate and optical method for predicting the temperature of the permanent magnet is realized by special correction processing in experimental links; in addition, the design method is used to give suggestions for model selection of the permanent magnet material in the motor.

An automated system adaptation technique for computer systems, networks and subsystems generally and, more particularly, for data storage systems. The invention programmatically designs, configures and manages a system, such as a data storage system. This is accomplished by performing a sequence of steps in an iterative loop, including analyzing the operation of the system under a workload, generating a new design based on the analysis and migrating the existing system to the new design. By systematically exploring a large design space and developing designs based on analyses of the workload, the invention generates designs that are improved in comparison to conventional design techniques. By programmatically repeating these tasks, the invention causes the system to converge to one that supports the workload without being over-provisioned.

A powder distributing method for the fuel battery and accumulator mixed power system includes determining the respective locally optimal power distributions for fuel battery and accumulator, and optimal power regulation for whole system for optimal power distribution.

The invention relates to a human body measurement method, in particular to the non-contact human body measurement method for clothing design which belongs to the technical field of clothing design. The digital images of the front surface and the side surface of the human body are firstly obtained; the extraction of the image edges are carried out by adopting the color segmentation, the best threshold segmentation, the hole filling, the opening operation and the pixel communication image processing method, thereby obtaining the image edges of the front surface and the side surface of the human body; the human body measurement feature points and the lines are determined, the corresponding height and width measurement data of the human body for the clothing design are obtained by calculation; a mathematical model is established by applying the width and the thickness data of the human body to obtain the related circumference data, and the human body circumference measurement data for the clothing design is obtained by BP neural network simulation and regression prediction treatment. The method has simple device, convenient operation and low measurement cost, thereby being capable of meeting the requirements on the design and the production of the clothing industry and having broad popularization and application prospects.

Methods, systems and apparatus for filter design, analysis and adjustment are provided. Various embodiments may include, for example, methods, systems and apparatus for electric signal filter tuning. Embodiments may also include design techniques for planar electric signal (e.g., RF signals) filter tuning. In at least an embodiment of the present invention a technique for filter tuning is provided which may include parameter extraction, optimization and tuning recipes techniques that may require only a single permanent filter tuning. In at least another embodiment a system and method of filter design, analysis and adjustment according to the present invention includes use of tuning that may be set using a mechanical scribing tool or a laser trimming device. In at least one other embodiment, a filter tuning technique may be provided and include providing trimming tabs on a resonator edge that may be disconnected or trimmed for filter tuning.

A semiconductor structure includes a first semiconductor die and a second semiconductor die identical to the first semiconductor die. The first semiconductor die includes a first identification circuit; and a first plurality of input / output (I / O) pads on the surface of the first semiconductor die. The second semiconductor die includes a second identification circuit, wherein the first and the second identification circuits are programmed differently from each other; and a second plurality of I / O pads on the surface of the second semiconductor die. Each of the first plurality of I / O pads is vertically aligned to and connected to one of the respective second plurality of I / O pads. The second semiconductor die is vertically aligned to and bonded on the first semiconductor die.

The present invention belongs to the field of medical instrument structure design technology. The endoscopic optical tomographic imaging scanning probe device based on micro motor includes transparent jacket, light guide unit and transverse scanning unit, and features that it has also fixing unit for fixing separately the light guide unit and the transverse scanning unit in the same shaft. The transverse scanning unit consists of micro motor and connected reflector, and the reflector is driven by the motor to reflect light to the sample for scanning. The present invention utilizes micro motor to provide OCT transverse scanning so as to obtain the high resolution cross section image of human internal organ. The probe unit has the features of small size, simple operation, etc. and utilizes the high resolution and fast imaging of OCT imaging, so that it has excellent application foreground in medicine field.

A current-mode direct conversion RF receiver is presented. In one set of embodiments the RF receiver comprises a simple transconductor input stage to create a current-mode modulated signal from a voltage-mode modulated signal. A downconversion mixer may be coupled to the transconductor input stage via a low impedance current cascode stage, and may operate to create a set of current-mode quadrature baseband signals from the current-mode modulated signal. The downconversion mixer may be implemented with a transistor-switching network, which may be driven by a phase locked loop (PLL) with quadrature outputs. The set of current-mode quadrature baseband signals may be converted back to the voltage domain by a transimpedance filter, which may perform channel selection for the receiver. The transimpedance filter may additionally include a low frequency zero to remove DC offsets. The receiver may be implemented using CMOS design technologies and operated with minimal self-mixing effects, minimal DC offset in the baseband signal, and utilizing low voltages.

The invention relates to reactor design technology, in particular to a passive heat removal device for dealing with a station blackout accident. The passive heat removal device structurally comprises a secondary side passive residual heat removal system and a passive containment heat export system, and the secondary side passive residual heat removal system is used for exporting residual heat of a reactor core and sensible heat of various devices of a reactor coolant system, so that a reactor is maintained to be in a safe shutdown state. The passive containment heat export system is used for exporting heat in a containment released by the reactor core so as to maintain integrity of the containment. The secondary side passive residual heat removal system and the passive containment heat export system share a hot water tank. The passive heat removal device for dealing with the station blackout accident is capable of exporting decay heat of the reactor core and heat in containment space released by the reactor core under the working condition of the station blackout accident, and melting probability of the reactor core and probability of radioactive substances released to the environment are evidently lowered.

Bender devices are demonstrated by developing non-uniform fields within a homogeneous, non-planar single slab active member material of non-uniform thickness through geometrical constraints and electrode placement. Single slab actuators are demonstrated for semiconductor designs including MEMS applications. Single slab bender periodic designs are demonstrated to be well suited for MEMS fabrication. Shaped actuators having a topological pattern formed across at least one portion are demonstrated to induced strain at the patterned portion of the actuator, causing the patterned portion to flare into open and close positions upon application of an external field. Voltage transformers, spark generators, power sources, and sensors are developed using the non-planar, homogeneous, single slab active member material of non-uniform thickness. Last, semiconductor process design techniques are demonstrated for periodic and other non-planar single slab actuators.

The invention relates to an integration circuit design, checking and testing integrated process which is realized by a computer-controlled integral system comprising, an automation design subsystem for presenting the key technical points of each steps from design input to printing chart, a verification subsystem for presenting rule inspection from electricity connected relation checking to geometry design and verification each key technical points, and a testing subsystem for presenting key points of testing survival and fault simulation.

The invention relates to the technical field of interior design, and discloses a method for generating a three-dimensional panoramic interior design scheme based on a data union platform. The method comprises the following steps of: (1), acquiring all kinds of materials for interior design needed by clients; (2), selecting all kinds of models through data union cloud design client side software, and adjusting the models in combination with designs of designers; (3), forming a digital hardcover design scheme including budget and purchase link; (4), outputting all kinds of digital effect pictures in different stages of interior finishing; and (5), making three-dimensional panoramic stereo display of the interior digital hardcover scheme to consumers through display equipment of a liquid store. By means of the method disclosed by the invention, the design scheme for uniting design and a supply chain as one and realizing what you see is what you get is provided for big household industries; various design software technical link points are broken through; multilateral link of various industries in the household field can be realized; a big household production line is formed; consumers personally participate in the design; therefore, the marketing cost is reduced; and the design cost is saved.

The invention relates to a small electric unmanned helicopter aerial photography system based on a front-end triaxial-type pan-tilt. The small electric unmanned helicopter aerial photography system is a small unmanned helicopter aerial photography system design mainly comprising a front-end triaxial-type pan-tilt design, a small unmanned helicopter platform design, a ground station design, and a communication system design, and belongs to the technical field of aircraft designs. The aerial photography system is light and flexible, high in integration level, low in noise, small in vibration, good in use maneuverability, low in requirements on the conditions of use environments, site and the like, and capable of realizing the omnibearing photography. The aerial photography system has a high practical value and a wide application prospect in the field of unmanned aircrafts.

The present invention discloses a refrigerator hinge which can pass through wire beam. It belongs to refrigerator design technical field. It provides a refrigerator hinge which can be hidden, can pass through wire beam, does not affect appearance and has long use life. It consists essentially of hinge seat used for fixing screw hole, cantilever connected with hinge seat and hinge axle of cantilever end, it is characterized by: it is equipped with a channel which can be used for laying wire beam from hinge seat, cantilever, axle seat to hinge axle, said channel consists of the access slit on the hinge seat, the threading groove connecting the access slit and the axle seat on the cantilever, the wire leading mouth on the lateral surface of hinge axle and the threading hole on the center of hinge axle sequentially. The distance between the wire beam leaded out the threading hole of the hinge axle and the display is longer, wire beam has full freedom degree, so the wreckage failure will not happen. The advantages are: compact structure, good concealment performance and versatility, long use life. It is mainly used for the hinge in the refrigerator.

The invention relates to a security access control method for a vehicle diagnosis system and belongs to the technical field of vehicle electronics and vehicle security system design. According to the security access control method, security access levels are increased, and an electronic control unit is additionally arranged to be used as a judgment criterion of the security access control, so the safety and reliability are improved.

The invention relates to a low-sidelobe emission directional diagram design method improving DOA estimated performance of a MIMO radar. The method comprises the following steps: setting an interesting area; ensuring column vectors of a beam space weighting matrix to satisfy pairing characteristics; ensuring signals at a receiving end to satisfy rotation invariance; constructing an optimized model of a beam space weighting matrix with directional diagram coupling characteristics, rotation invariance of the signals and equality of various array element emission powers as constraint conditions; introducing an auxiliary variable and relaxing a rank-1 constraint to be a positive semidefinite constraint through utilization of the semidefinite relaxing technology; and through utilization of an interior point method, obtaining an optimal solution of the relaxing problem; through a Gaussian randomization method, the beam space weighting matrix is solved; and DOA estimation is carried out on a target at the receiving end through the ESPRIT algorithm. The MIMO radar waveform design technology which is good in performance in the invention can raise the signal to noise ratio at the receiving end, provide an important theoretical basis and a specific realization method for raising the precision of MIMO radar angle estimation.

The invention discloses a knowledge-engineering-based automatic scheme generation and evaluation system. The automatic scheme generation and evaluation system comprises a project management subsystem, a demand management subsystem, a product database subsystem, a collaborative design subsystem and an electronic product design technology platform, wherein the project management subsystem is in charge of providing solving ideas and tools; the demand management subsystem is used for decomposing the product design demand, converting into task indicators and multi-level task sequences, realizing dependence mapping and providing real-time monitoring of the indicators; the product database subsystem is used for managing design data and setting data standards and regulations; the collaborative design subsystem plays the role of a bridge; the electronic product design technology platform is in charge of generalizing and managing typical data, design methods and digital prototype models of all products and pushing information to the collaborative design subsystem. A method comprises the steps of knowledge extraction and classification, professional knowledge base setting, knowledge-engineering-based platform construction and automatic design scheme generation and evaluation. According to the invention, knowledge engineering is introduced into the electronic product design, so that the reuse rate of knowledge and other resources is effectively improved, automatic generation and evaluation of product schemes are realized, the product research and development time is shortened and the intelligence degree is high.

The invention discloses a recognition method of a critical geometrical error source of a machine tool and belongs to the technical field of machine precision designing. The recognition method of the critical geometrical error source of the machine tool is characterized by comprising the steps that the machine tool is abstracted into a multi-body system according to the structure and motion characteristics of the machine tool, relevance of parts of the machine tool is described by a topological structure and a low-order body array, a generalized coordinate system is built in the multi-body system, coupling relationship of error amounts of parts of the machine tool is described by a homogeneous transformation matrix, a characteristic matrix and a motion equation of the relative movement between two adjacent bodies of the machine tool are elicited, a precision model of a machining center is built, an ordinary mathematical model used for error sensitivity analysis of a four-shaft machine tool is built with a matrix differential method according to the precision model of the precision horizontal machining center, influence degrees on the whole space error of all error elements are compared by calculating the geometrical error sensitivities of all parts, and finally the critical error source influencing the machining precision of the machine tool is recognized.

The invention belongs to the flex-wing miniature aircraft auxiliary design technical field. The invention is characterized in that: the following modules which are respectively a structure-flow field entity modeling and basic assumption module, a k-epsilon turbulent flow model flow field analysis module, a linear elastic structure analysis module and a structure-flow field coupling interface module are set in a computer, wherein, the structure-flow field entity modeling and basic assumption module is provided with flexible wings and a three-dimensional model in a circumferential flow field; the k-epsilon turbulent flow model flow field analysis module is used for obtaining distribution pressure on a fluid-solid coupling surface of the flow field under different flight conditions; the linear elastic structure analysis module obtains displacement and speed of flex-wing structure meshes; the structure-flow field coupling interface module obtains deformation of the meshes of the flow field from the obtained displacement of the flex-wing structure meshes, and the deformation is taken as an input condition of the k-epsilon turbulent flow model flow field analysis module and then outputted; distribution pressure on wing surfaces of the flexible wings is obtained according to the distribution pressure of the flow field and taken as an input condition of the linear elastic structure analysis module and then outputted. The flex-wing miniature aircraft has the advantages that: higher accuracy than two dimensional analysis is guaranteed and simultaneously the efficiency of simulation calculation can be improved.

The invention relates to the technical field of the design of chemical reactors and discloses a novel high-throughput micro-channel reactor provided with multiple layers of spirally winding tubes. The reactor mainly comprises reactant inlet and outlet sections, inlet and outlet glands, flanges, inlet and outlet tube plates, stainless steel capillary tubes, a fixed pad strip, a drum, a winding drum, constant-temperature medium inlet and outlet sections, baffles, left and right supports, a central support tube and a support piece, wherein two ends of the central support tube are connected with the inlet and outlet tube plates, and the winding drum and the central support tube are located on a same axis and welded and connected through the support piece; the stainless steel capillary tubes spirally wind around the winding drum in a multi-layer manner, spiral directions of adjacent winding layers are opposite, multiple reaction tube bundles which take the winding drum as the circle center and have different circle diameters are formed, and two ends of each stainless steel capillary tube are connected onto the inlet and outlet tube plates respectively; the inlet and outlet glands are connected with the inlet and outlet tube plates respectively through the flanges. The reactor has the advantages of high throughput, high heat transfer capacity, high synthetic rate, safety, high efficiency, low machining cost, capability of realizing continuous production, easiness in parallel enlargement and the like.

The invention discloses a low-elasticity-modulus titanium-based jawbone implant and a preparation method of the implant. The preparation method mainly comprises the six steps that CT-scanned jawbone section image data are obtained; a rebuilt jawbone three-dimensional digital model is obtained; a jawbone implant digital model of a multi-hole structure is designed and obtained; a machining file of slice layered cross section data is obtained; the selective laser melting technology is adopted for preparing the jawbone implant; and surface treatment is carried out on the implant. The implant is used for treating a patient with jawbone defects, and the CAD digital design technology is used in the design of the implant; and jawbone repairing individualized design and multi-hole support structure design are combined, and through the selective laser melting technology, the low-elasticity-modulus titanium-based jawbone implant is prepared. The implant can meet the individual needs of the patient, and meanwhile can reduce the elastic modulus; and the problems of stress concentration and stress shielding of a traditional jawbone implant are solved, the preparation time is shortened, and the machining difficulty and the production cost are reduced.

The invention discloses an embedded oilwell parameter real-time acquisition system, relates to the fields of information technology and automation and information processing technology, and is an oilwell data real-time acquisition and storage device completed by ARM embedded design technology. The acquisition system consists of an ARM acquisition unit, a wireless communication module, a power supply and a sensor, and combines an embedded operation system with opening source codes and embedded application programs to form an embedded data acquisition and storage terminal. The acquisition system can autonomously complete set data acquisition and storage tasks, perform communication with far end computers in a wireless mode, be used as a distributed monitoring terminal of an oilwell production control platform in ocean or desert environment, and acquire and store multiple kinds of data of the sensor such as pressure, temperature, and the like, has the maximum storage capacity of tens of millions of data records, and can improve the real-time characteristic of parameter monitoring in the oilwell production process, reduce occurrence possibility of blowout accidents, and improve working benefits of oil exploration and safety production.