78results about How to "Avoid matching problems" patented technology

A computerized trading system for facilitating transactions of financial instruments between a plurality of traders. A bid and offer recorder records bids and offers on financial instruments from traders. A matching engine is configured to match complementary bids and offers. A trade restrictor is configured to detect bids and offers that are automatically entered and restrict matching of the bids and offers by the matching engine. The trade restrictor may block trades between traders where both the bids and the offers are based on automated price feeds, encouraging banks to supply such automated price feeds and enhance the liquidity of the market. Price feed based trades can be detected by locating data in the bid or offer indicating automation or from the structure of the bid or offer, which may also contain a cancellation request for a previous bid or offer made within a short time period.

A content matching engine (CME) uses a content addressable memory (CAM) array that stores a plurality of strings in separate entries. The strings define one or more rules to be matched. The strings of each rule are linked, thereby providing a required order. The strings of each rule can be linked by per-entry counters associated with each string, or by a state machine. The strings in the CAM array are compared with a packet, which is shifted one symbol at a time (because the strings can start on any boundary). When the CAM detects a match, the CAM skips over the string that resulted in the match, thereby preventing erroneous matches. The CAM allows parallel matching to be performed for multiple rules. If the contents of a packet match all of the strings of a rule, in order, then the CME asserts a match/index signal that identifies the matched rule.

In recent years, much effort has been placed on improving the performance of timing and jitter measurement devices using Delay Locked Loop (DLL) and Vernier Delay Line (VDL) techniques. However, these approaches require highly matched elements in order to reduce differential non-linearity timing errors. In an attempt to reduce the requirement on element matching, a component-invariant VDL technique is disclosed that enables the measurement device to be synthesized from an RTL description. The present invention is based on a single-stage VDL structure, which is used to mimic the behavior of a complete VDL. Furthermore, as test time is an important consideration during a production test, a method and system is provided that reduces test time at the expense of additional hardware.

The invention relates to a method for decoding coding mark points of a measuring stick based on skeleton extraction. The method comprises the following steps: segmenting an image by an self-adaptive threshold method and extracting foreground regions which comprise non-coding mark point regions; eliminating a noise region by utilizing the area of each foreground region to acquire a region to be extracted; performing local sub-pixel edge extraction on the region to be extracted in the original image and then positioning an oval outline; fitting an oval by oval outline points, extracting a coding mark point region and intercepting an image of the coding mark point region; performing inverse affine on the oval in the image to enable the oval to become a circle, so as to acquire a image to be decoded; performing partial differential processing and extracting the skeleton of a coding ring region; decoding the coding mark points and performing rotate right on 10 binary codes, wherein the minimal decimal value is the coding mark point decoding value; performing one-to-one correspondence on determined feature point codes on the measuring stick of left and right images, namely matching point pair. The method has the advantages that the defect that three-dimensional matching calculation is complex in the traditional algorithm is overcome, the matching precision is improved, and the important application value is achieved in the field of binocular vision three-dimensional measurement.

The invention discloses a speckle-pattern-based method for calibrating a monocular measurement system. The method comprises the following steps: calibration plate image collection, calibration plate image detection, speckle pattern collection, projector calibration image generation, and self-calibration of a measurement system formed by a single camera and a projector. The invention also discloses a calibration device. The calibration device comprises a digital grating projector (1), an industrial charge-coupled device (CCD) camera (3), and a computer (5), wherein the computer comprises an image collection control unit, a projector projection control unit, a calibration plate image detection unit and a camera parameter calibration unit. By adopting the method and the device, the high-accuracy calibration on the monocular measurement system can be quickly and efficiently finished, and the method and the device have the characteristics of being simple and convenient to operate, practical, flexible, and accurate and reliable in result.

The invention provides a multi-target near-and-far field mixed source positioning method and belongs to the field of the array signal processing technology. According to the method, firstly, a symmetric and homogeneous linear sensor array is arranged to receive a target signal, and then the observation signal form of a near-and-far field mixed source is determined. Secondly, a special third-order cyclic matrix is constructed based on the output of a properly selected sensor, and a direction matrix thereof only contains the azimuth information of a far-field source and the azimuth information of a near-field source. Thirdly, the eigenvalue of the third-order cyclic matrix is decomposed, so that a corresponding noise sub-space is obtained. Fourthly, a cyclic autocorrelation matrix based on the observation data of the entire matrix is calculated, and the eigenvalue of the cyclic autocorrelation matrix is decomposed. In this way, a corresponding noise sub-space is obtained. Fifthly, an already estimated azimuth is substituted to the two-dimensional MUSIC spectrum peak searching process, so that the estimation on the distance of the near-field source is realized. The application of four-order cumulants is avoided, and the calculation complexity of the algorithm is effectively reduced. The operation time of the algorithm is shortened. Meanwhile, the cyclic steady interference and the steady background noise are effectively suppressed. Moreover, the extra parameter matching process is avoided.

A method of displaying a navigation map includes preprocessing photorealistic three- dimensional data offline. A location of a vehicle is automatically determined online. A portion of the preprocessed photorealistic three-dimensional data is identified that is associated with objects that are disposed within a geographic area. The geographic area includes the location of the vehicle. A nonphotorealistic image is rendered based on the identified portion of the preprocessed data. The nonphotorealistic image is electronically displayed to a user within the vehicle.

A compact keypad is provided for inputting data into an electronic device. With the addition of a minimum of just four more keys than found on a telephone keypad, direct single-press-per-character data entry is made possible by the use of adjecent combination keypress entries. The keys are sufficiently sized and spaced to enable the direct activation of any of a set of characters comprised of numbers, letters and symbols with a single finger stroke of either one individual key, or an adjacent combination of keys. The present compact keypad conforms to the number-letter association of a standard telephone keypad. Such numerous combinations are made possible because of combinations arising from individual keys being arranged in a close-ordered hexagonal pattern. Seven or more characters can be directly selected with a single press of a single key actuated in combination with any or none of its six adjacent keys. Each individual key is connected to an electro-mechanical contact to produce an electrical impulse corresponding to the individual key being activated. The various combinations are subsequently decoded to generate an input of the single selected character. The number of such direct data entry combinations far exceeds the number of individual keys, so substantially fewer keys are needed than those found on a full set of non-combination enabled keyboards, such as the typical QWERTY keyboard, while still maintaining the same key coding equivalency and a one-to-one key stroke to key code correspondence. Alternate embodiments of the present invention offer two handed touch-typing speed of data entry along with being compatible with current expanded function telephonic keypads.

A fingerprint matching apparatus includes a fingerprint distortion detection unit for detecting whether or not a correlation object intentionally distorts the finger put on the fingerprint reading face by, for example, applying excessively large force to the finger, or dragging or rolling the finger. With this configuration, it is possible to prevent a distorted fingerprint image from flowing into the fingerprint matching apparatus and therefore the probability of accurate fingerprint correlation can be increased.

A data processing apparatus including processing circuitry having a secure domain and a further different secure domain and a data store for storing data and instructions. The data store includes a plurality of regions each corresponding to a domain, and at least one secure region for storing sensitive data accessible by the data processing circuitry operating in the secure domain and not accessible by the data processing circuitry operating in the further different secure domain and a less secure region for storing less sensitive data. The processing circuitry is configured to verify that a region of the data store storing the program instruction corresponds to a current domain of operation of the processing circuitry and, if not, to verify whether the program instruction includes a guard instruction and, if so, to switch to the domain corresponding to the region of the data store storing the program instruction.

Search engine method includes: receiving a user query request input; searching candidate results matching with the query request; determining a semantic relatedness between the query request and each candidate result based on a click-escape model; sorting the candidate results according to the semantic relativity. The click-escape model has an escape dictionary, a non-escape dictionary, or a combination thereof. Sorting candidate results of a search in accordance with a semantic relatedness can enhance the sorting effect of the searched results, avoid searched results which do not match the user's query appearing in the forefront of the searched result list, and guarantee a good user experience.

A method and device for extract laser stripe cent of rail contour under dynamic driving environment A laser stripe image of a rail profile to be extracted is input to a depth learning network structure segmentation model, and the light stripe image is segmented into a plurality of sub-region images accord to the gray level characteristics and the gradient direction characteristics of the light stripe; Determining the normal principal direction of each sub-region based on the gradient histogram of the light stripe; Each sub-region corresponds to a normal principal direction; According to the main normal direction of each sub-region, constructing the corresponding direction template for each sub-region. According to the direction template, the sub-pixel coordinates of the center of the lightstrip in each sub-region are determined. According to the sub-pixel coordinates of the center of the light strip in each sub-region, the sub-pixel coordinates of the center of the laser stripe of therail contour in the dynamic driving environment are extracted. The technical scheme improves the efficiency, accuracy and robustness of the laser stripe center extraction under the dynamic driving environment.

The invention discloses a space non-cooperative target pose measurement method based on a model. The space non-cooperative target pose measurement method is characterized by comprising the following main steps: obtaining a deep edge and a texture edge of a target model according to a relative pose at the last moment so as to obtain a visible edge model; extracting a Harris characteristic of a current scene image according to a KLT (Karhunen-Loeve Transform) algorithm; projecting the target visible edge model in an image scene, searching an image edge in a normal direction along the edge model and calculating a residual error of a corresponding characteristic point pair; estimating 3D coordinates of the Harris characteristic of a last frame through deep buffer, projecting the 3D coordinates in a current image in a current estimation pose, and calculating a residual error of a corresponding characteristic point pair; determining weights of characteristic point pairs according to an M estimator robust method and distributing the weights of characteristic points according to the average residual error obtained in the two steps; and iteratively calculating a relative pose according to a visual servo method. According to the method provided by the invention, the measurement of a relative pose of a space non-cooperative target can be realized, and the advantage of low calculating amount is achieved.

A semiconductor IC device includes an electrostatic protective circuit connected to an internal circuit connected between two pads. The internal circuit includes a matching circuit for adjusting the impedance between the two pads. The matching circuit includes n (n is a positive number of 2 or more) resistance elements connected in parallel between the two pads; n×m (m is a positive number of 2 or more) transistors, each m transistors connected in parallel being connected in series to the n resistance elements, respectively; and an adjustor for selectively allowing the transistors to perform an ON-operation. The resistance of each resistance element is set to a larger value than the impedance to be adjusted. Accordingly, a surge-current control effect is enhanced and breakdown of the transistors can be prevented.

The invention discloses a bus type identifying method, belonging to the technical field of processing a computer video. The bus type identifying method comprises the following steps of: carrying out mixed Gaussian modeling on a monitoring video, and carrying out bus type initial identification on a vehicle; secondly, establishing a corresponding 3D (three-dimensional) model according to the position information of the vehicle and the characteristics of a bus; meanwhile, extracting a characteristic segment by using an LSD (Large Screen Display) segment extracting algorithm; and finally, matching the 3D model of the vehicle and the segment characteristics by using a comprehensive algorithm of combining template matching and shortest distance matching. According to the bus type identifying method provided by the invention, the 3D model is established by using the vehicle position information and the bus type characteristics, so that the preparation work of a car type database can be avoided; meanwhile, the vehicle to be judged is initially judged by using the bus type characteristics, so that the 3D modeling and matching process can be carried out on all vehicles in the scene, and the calculation amount is reduced. Finally, the calculation accuracy is improved, and the calculation amount can be reduced by using a combined matching algorithm.

The invention discloses a digital phase-locked loop frequency synthesis device. The device comprises an orthogonal voltage-controlled oscillator, an output buffer, an eight-division frequency-divider,a phase interpolator, a digital processor, a digital time converter, a sampler, an analog-to-digital converter, a digital loop filter, a digital-to-analog converter and a frequency locking module. The digital phase-locked loop frequency synthesis device disclosed by the invention can generate 28-32 GHz continuous coverage millimetre-wave orthogonal signal output, and can satisfy the local oscillation requirement of a transceiver in the frequency band; furthermore, voltage signals are converted into digital signals through the analog-to-digital converter; the equivalent time resolution is improved; the in-band phase noise of output signals is improved; the required delay coverage range of the digital time converter is reduced; the linearity of the digital time converter is improved; and the spurious performance of output signals is improved.

The present invention relates to a method and an arrangement for optimizing the efficiency of a power amplifier (1) that is utilized for transmission of radio signals in a portable radio communication device, such as a mobile phone. The impedance loading the power amplifier (1) is controlled by a controller (5) in dependence on a transmission power of the portable radio communication device, wherein the radiating impedance of an antenna element (2) loading the power amplifier is controlled in dependence of the desired load impedance. Preferably, the changing of radiating impedance is performed by changing a capacitive coupling between the antenna element and a ground element or by changing the size of the antenna element. Better efficiency and bandwidth are thereby attained.

Embodiments of the present invention provide a microstrip-coupled dipole antenna. A microstrip of the antenna may be formed on top of a printed circuit board (PCB) and coupled to a transmission line such that the microstrip is operable to transfer electromagnetic energy fed to it by the transmission line to a dipole structure on the bottom of the PCB that, in turn, radiates a broadband electromagnetic signal.

The invention discloses a method for realizing piezoelectric pressure detection touch screen piezoelectric response uniformity by using a neural network. Themethod for realizing piezoelectric pressuredetection touch screen piezoelectric response uniformity by using the neural networkcomprises the steps that a multilayer structure piezoelectric touch screen comprising an electrode array layer anda piezoelectric thin film layer is produced, a user operates according to prompt requirements,a voltage response signal of the touch screen electrode array layer is generated and collected, after a collected signal is subjected to data preprocessing, a neural network is trained based on a gradient descent method, and thusmapping relations between a non-uniform piezoelectric response and the position and strength of touch screen of the user are established correspondingly; then, during the using by the user, when the user touches a screen, the piezoelectric response signal is acquired, and thetrained neural network is used for mapping the piezoelectric response totouch screen position and touch screen pressure. According to the method for realizing piezoelectric pressure detection touch screen piezoelectric response uniformity by using the neural network, the complicated matching process before leaving a factory and the memory consumption caused by the establishment of a huge databaseare avoided, time, energy consumption, production line testing are saved, and detection precision is greatly improved.

In a fingerprint matching processor which has an electrostatic capacity semiconductor sensor 14 for detecting fingerprint information based on electrostatic capacities between a plurality of detection electrodes 21 arranged on a semiconductor substrate 24 at a predetermined interval in a two dimensional manner and a target object, and which executes a fingerprint matching process for the detected fingerprint information, a water repellent film 30 is formed on a protective film 26, the protective film 26 protecting ground electrodes 22 that are disposed between the detection electrodes 21 and configured to ground the target object and the detection electrodes 21, and serves as a surface of the semiconductor sensor 14 for placement of the target object.

The invention provides an inorganic ecologic wood. The inorganic ecologic wood is prepared through using, by weight, 100.0 parts of inorganic gelling powder, 6.0-42.0 parts of a dispersible vegetable fiber, 8.0-25.0 parts of amorphous SiO2 mineralization powder, 0.0-5.5 parts of a modification aid, and 23.5-26.2 parts of a complex formulation solution. The inorganic ecologic wood reserves the good plasticity and environmental protection characteristic of the inorganic material, and has the ecologic functions of formaldehyde cleaning, antibiosis, mildew resistance and negative ion generation. The invention also provides a preparation method of the inorganic ecologic wood, and applications of the inorganic ecologic wood as building materials comprising ecologic board, wood floors, interior and exterior decorative boards or decorative modeling boards and the like.

The invention discloses a high-voltage transmission line camera image abnormality automatic judgment method. The method comprises the following steps that: step 1, images are scaled to a fixed size, and gray-scale processing is performed on the images; step 2, the gray-scale mean values of each image is calculated, and whether abnormalities exist in the images is judged according to the gray-scalemean values; step 3, an LBP operator is adopted to calculate the texture information of the images; step 4, the variances of the images are calculated, and whether abnormalities exists in the imagesis judged according to the variances of the images; step 5, binarization is performed on the images; step 6, the proportion of pixels in each binarized upper 1/2 image which have gray values that arenot 0 in the corresponding upper 1/2 image is calculated, and whether abnormalities exist in the images is judged according to the proportions; and step 7, the number of images where abnormalities exist continuously is calculated, if the number reaches a certain number, it is determined that an image abnormal phenomenon occurs. With the method of the invention adopted, calculation amount can be effectively reduced; abnormal fault detection can be simplified; and the detection effect of the image abnormal phenomenon of a camera can be greatly improved.

The invention discloses an automatic design method of a drilling jig and a tool for machining multi-lug-flake component holes. The automatic design method comprises the following steps that (1) a data base is formed according to aviation standards; (2) the holes in all lug flakes of a component are identified; (3) a main structure of the drilling jig is preliminarily designed; (4) design parameters of a twist drill are determined; (5) design parameters of an expanding drill are determined; (6) design parameters of a reamer are determined; (7) the specific size of the drilling jig is calculated; and (8) a three-dimensional mathematical model is generated. The automatic deign method depends on the component structure to complete automatic overall design of the drilling jig and the tool, so that the component, the tool and the drilling jig are matched with one another, the coordination problem is solved, and the effect that the component is machined successfully is ensured.