2480 results about "Coincidence" patented technology

Medical diagnostic apparatus and methods are disclosed. Ultrasound radiation pressure selectively modulates a target area within a body. One or more pulses of radiation containing temporally correlated groups of photons are generated. The photons are characterized by two or more different wavelengths that are selected to have specific interaction with a target chromophore. The two or more different wavelengths are also selected to have substantially similar scattering cross-sections and anisotropy parameters in the target and its surroundings. The pulses of radiation are injected into the body proximate the target area being modulated by the radiation pressure field. Photon groups at each of the different wavelengths that are backscattered from the target area are detected in temporal coincidence. Time-gated background-free amplification of the return signal is used to exclude photons which could not by virtue of their arrival time have interacted with the radiation-pressure-modulated target. Photon groups are selected with a modulation component at the modulation frequency of the radiation pressure modulation field, or at a harmonic of the modulation frequency. From the arrival rate of the detected temporally correlated photon pairs or multiplets, chemical information about the target area, such as an oxygenation or pH level can be inferred. Cardiac output may be computed from measurements of venous and / or arterial oxygenation using this technique.

The present invention relates to a method for manufacturing a tooth prosthesis, for insertion in a jawbone, including an implant and an abutment on top of the implant. The method includes: defining a shape of the prosthesis and its location in the jawbone by using first data from a first CT scan image of the jawbone and second data from a second image of a gypsum cast, correlating first and second data by extracting from the first data first position reference data of a first reference in the first image, and from the second data second position reference data of a second reference in the second image, the second reference being identical to the first reference; performing a geometric transformation on the second data and / or the first data to have a coincidence of the second image with the first image and to combine the first and second data into composite scan data.

A method of playing a modified twenty-one card game by at least a dealer includes the steps of placing a wager awarded when the player bets that the dealer will score at least one of a predetermined number of dealer outcomes, and playing the twenty-one game. The method also includes the steps of determining the score of the dealer, and comparing the score of the dealer to the predetermined number of dealer outcomes bet by the player. The player is awarded responsive to the wager and a coincidence between the dealer score and one of the predetermined number of dealer outcomes.

Audiovisual reproduction system triggered by payment from a user, developed around a microprocessor device, said system comprising memory containing, in compressed digital form, audio and visual information to be used, a display and digital audio reproduction unit enabling formation of a multimedia environment, wherein the display comprises a video monitor and an interactive interface with the user by an interface program which reacts to external events and translates the external events for a multitasking operating system as events which trigger, via a graphical module of a library of integrated tools and services, a display of windows or frames providing a modification of physical operating parameters of the audiovisual reproduction system, said external events comprising at least a down event interpreting coincidence of a placement of pointing device with the position of at least a representation displayed by the graphic module, and an event which triggers modification of the physical operating parameters by storing these parameters in said memory.

The inventive golf club comprises a head of a metal having a face and a flexural range, defined in the face, where the quantity of flexure in a direction perpendicular to the face is at least 45% of the maximum quantity of vertical flexure of the face. The flexural range is arranged in coincidence with a hitting spot distribution range of a player in the face. Alternatively, a flexural range having a spring constant of at least 2 kN / mm and not more than 4 kN / mm is present in the face of the inventive golf club.

A gamma camera having a scintillation detector formed of multiple bar detector modules. The bar detector modules in turn are formed of multiple scintillation crystal bars, each being designed to have physical characteristics, such as light yield, to achieve a sufficient spatial resolution for nuclear medical imaging applications. According to another aspect of the invention, the bar detector modules are arranged in a three-dimensional array, where each module is made up of a two-dimensional array of bar detectors with at least one photosensor optically coupled to each end of the module. Such a camera can be used for both PET (coincidence) and single photon imaging applications. According to another aspect of the invention, a bar detector gamma camera is provided, which utilizes an improved positioning algorithm that greatly enhances spatial resolution in the z-axis direction (i.e., the direction along the length of the scintillation crystal bar).

A three-dimensional virtual-touch human-machine interface system (20) and a method (100) of operating the system (20) are presented. The system (20) incorporates a three-dimensional time-of-flight sensor (22), a three-dimensional autostereoscopic display (24), and a computer (26) coupled to the sensor (22) and the display (24). The sensor (22) detects a user object (40) within a three-dimensional sensor space (28). The display (24) displays an image (42) within a three-dimensional display space (32). The computer (26) maps a position of the user object (40) within an interactive volumetric field (36) mutually within the sensor space (28) and the display space (32), and determines when the positions of the user object (40) and the image (42) are substantially coincident. Upon detection of coincidence, the computer (26) executes a function programmed for the image (42).

Coverage metrics are expressed with an intuitive graphical interface based upon data flow. Coverage analysis and presentation objects are integrated to produce coverage results which enable device functionality in a device under test to be modeled as objects, subject to event occurrence. Event objects are introspected at run-time, allowing the user to determine the event object's attributes with specification of coverage metrics subject to a selected combination of the event object's attributes. The event objects are serialized into permanent storage, allowing the user to specify and execute new coverage metrics at any time after simulation. Operations used to describe coverage metrics are modeled as analysis objects. Such analysis objects accept event objects as inputs, using a predetermined, well-defined interface. The combination of event objects and analysis objects allows coverage metrics to be specified in a simple data flow manner. With such a coverage metric, the user attaches or wires (metaphorically) the analysis objects together in a visual builder environment. Using the analysis objects, the user specifies desired coverage metrics, such as coverage of sequences of events and / or coverage of events that occur during the same time window of a simulation. The display functionality of the coverage tool is expandable because the presentation objects use the same event object interface as the analysis operator objects. Coverage metrics are subject to specification either before or after event occurrence. The user specifies coverage metrics using an intuitive graphical interface based upon data flow, without any specific programming language skills being necessary. Functional events in the device under test are treated as event objects. Each event object may be passed to selected analysis tools chosen by the user, such as analyzers, logic gates, and coincidence counters.

A speech recognition system for transforming an acoustic signal into a stream of phonetic estimates includes a frequency analyzer for generating a short-time frequency representation of the acoustic signal. A novelty processor separates background components of the representation from region of interest components of the representation. The output of the novelty processor includes the region of interest components of the representation according to the novelty parameters. An attention processor produces a gating signal as a function of the novelty output according to attention parameters. A coincidence processor produces information regarding co-occurrences between samples of the novelty output over time and frequency. The coincidence processor selectively gates the coincidence output as a function of the gating signal according to one or more coincidence parameters. A vector pattern recognizer and a probability processor receives the gated coincidence output and produces a phonetic estimate stream representative of acoustic signal.

An imaging system comprises: a ring of positron emission tomography (PET) detectors; a PET housing at least partially surrounding the ring of PET detectors and defining a patient aperture of at least 80 cm; a coincidence detection processor or circuitry configured to identify substantially simultaneous 511 keV radiation detection events corresponding to electron-positron annihilation events; and a PET reconstruction processor configured to reconstruct into a PET image the identified substantially simultaneous 511 keV radiation detection events based on lines of response defined by the substantially simultaneous 511 keV radiation detection events. Radiation planning utilizing such an imaging system comprises: acquiring PET imaging data for a human subject arranged in a radiation therapy position requiring a patient aperture of at least about 80 cm; reconstructing said imaging data into a PET image encompassing an anatomical region to undergo radiation therapy; and generating a radiation therapy plan based on at least the PET image.

The invention provides a safe fingerprint verification method and a system, and a safe fingerprint verification system is constructed by using an image acquisition unit, a verification characteristic extraction unit, an assisted characteristic extraction unit, a template encryption unit, a template storage unit, a registration parameter computing unit, a template decryption unit and the like. The method and the system provided by the invention take a fuzzy safety box method as a basic framework, adopt the number of ridge lines between the position of a fingerprint detailed point and the adjacent three detailed points thereof as verification characteristics, extract stable reference points from fingerprints and blocking direction fields of the peripheral specific neighborhoods thereof as assisted characteristics, use a method based on the direction field mutual information to evaluate the coincidence degree of the fingerprint registration, and search the optimum parameters by a searching strategy from roughness to refinement, namely, the optimum parameters are the registration parameter for the template fingerprint and the querying fingerprint. The registration parameters are used to convert the querying fingerprint characteristics, and encryption and verification operation are carried out on the template fingerprint by using the converted querying fingerprint verification characteristics.

A dual-port SRAM operates for read and write operations in a single clock cycle. The SRAM has a comparator for comparing the read address and the write address to detect a coincidence therebetween. A bypass circuit bypasses the write data as a read data upon detection of a coincidence, whereas a timing circuit delays the write control signal with respect to the read control signal upon detection of no coincidence. The timing control between the read operation and the write operation reduces signal interference between the write data and the read data and enables a higher speed operation of the computer system.

The invention provides a Mongolian-Chinese machine translation method for enhancing semantic feature information based on a Transformer model. The method comprises the following steps: firstly, starting from the language characteristics of Mongolian, finding out the characteristics of the additional components of the Mongolian in terms of stem, affixes and lattices, and merging the language characteristics into the training of a model; secondly, distributed representation for measuring the similarity between the two words is taken as a research background, and the influence of depth, density and semantic coincidence degree on the concept semantic similarity is comprehensively analyzed; in the translation process, a Transformer model is adopted, and the Transformer model is a multi-layer encoder which performs position encoding by using a trigonometric function and is constructed on the basis of an enhanced multi-head attention mechanism. A decoder architecture, which completely dependson the mechanism of attention to draw the global dependency between the input and the output, eliminates recursion and convolution.

A method for validating received positional data in vehicle surveillance applications wherein vehicles transmit positional data indicating their own position to surrounding vehicles. A a radio direction finding antenna arrangement of a receiving unit receives a signal carrying positional data indicating an alleged position of a vehicle, transmitted from a radio source. The bearing from the receiving unit to the radio source is estimated utilizing the radio direction finding antenna arrangement and the received signal. The distance between the receiving unit and the radio source is estimated based on the time of flight for a signal travelling there between at known speed. An estimated position of the radio source is calculated based on the estimated bearing and the estimated distance. A deviation value indicating the deviation / coincidence between the alleged position of a vehicle is determined according to the received positional data and the estimated position of the radio source.

A system for advancing a needle through a vasculature to an injection site at the heart of a patient includes a guide catheter with a reflective distal tip. Also included is an imaging unit that is mounted on the catheter to radiate an energy field. Structurally, a distal portion of the catheter is biased to bend into a predetermined configuration that will position the distal end of the catheter for interception by the energy field. If necessary, coincidence of the reflective tip with the energy field is established by moving the energy field along the length of the guide catheter. With coincidence, the reflective tip reflects a signal that is useful for advancement of the needle 34b from the guide catheter and into the injection site.

A system and method for the measurement of multiple fluorescence emissions in a flow cytometry system is disclosed where each excitation light source is modulated with a different frequency. A single detector is used to collect the fluorescent emissions excited by all light sources, and the emissions are segregated using Fourier Transform techniques. Systems and methods for the correction of inter-beam coincidence are also disclosed.

An analytical device for rapid, non-invasive nuclear magnetic resonance (NMR) spectroscopy of multiple samples using a single spectrometer is provided. A modified toroid cavity / coil detector (TCD), and methods for conducting the simultaneous acquisition of NMR data for multiple samples including a protocol for testing NMR multi-detectors are provided. One embodiment includes a plurality of LC resonant circuits including spatially separated toroid coil inductors, each toroid coil inductor enveloping its corresponding sample volume, and tuned to resonate at a predefined frequency using a variable capacitor. The toroid coil is formed into a loop, where both ends of the toroid coil are brought into coincidence. Another embodiment includes multiple micro Helmholtz coils arranged on a circular perimeter concentric with a central conductor of the toroid cavity.

The invention provides novel Compton camera detector designs and systems for enhanced radiographic imaging with integrated detector systems which incorporate Compton and nuclear medicine imaging, PET imaging and x-ray CT imaging capabilities. Compton camera detector designs employ one or more layers of detector modules comprised of edge-on or face-on detectors or a combination of edge-on and face-on detectors which may employ gas, scintillator, semiconductor, low temperature (such as Ge and superconductor) and structured detectors. Detectors may implement tracking capabilities and may operate in a non-coincidence or coincidence detection mode.

Method and device is proposed herein for unattended detection of deliberate or unintentional breaches caused by an operator of a routinely executed procedure comprising transference of objects and their mandatory presenting to the item-sensing device for registration or testing or classification. The invention can be used for detecting fraud of a cashier in checkout retail environments by omitting registration of items placed on the take-away belt. The invention is based on detecting motion and presence events in the predetermined workspace areas and comparing their temporal sequence with the predetermined scenarios. In the case of coincidence with the scenario, the sensing device signal in the due time is checked to be received. In the case of a wrong or no signal received, the procedure is recognized as incorrectly executed. Motion and presence events are detected by computer analysis of live video from the camera and / or by applying the motion and the presence detectors.

A method and apparatus is provided for diagnosing and correcting rotating stall and surge in rotating machines by monitoring dynamic shaft precession and comparing this precession with a standard and altering the precession as the machine approaches a destabilizing condition when indicated by the comparison step. Axial vibration monitoring means is also provided for monitoring and comparing a dynamic axial vibration of the machine with a standard and altering the axial vibration as the machine approaches a destabilizing condition. Furthermore, the instant invention measures the complex dynamic stiffness of the machine and computes the direct dynamic stiffness and the quadrature dynamic stiffness for use as a destabilizing warning device by monitoring for a drop in direct dynamic stiffness and / or a coincidence of zero crossing of both the direct dynamic stiffness and the quadrature dynamic stiffness components. One embodiment for altering the rotating stall and / or surge is by a controlled active servobearing.

A method for acquiring PET images with reduced time coincidence window limits includes obtaining a preliminary image of a patient within a radiation field of view (FOV), determining the spatial location of the patient within the FOV based on the preliminary image, calculating a different time coincidence window based on the spatial location of the patient for each possible pair of oppositely disposed detectors, scanning the patient with a PET scanning system to detect a pair of gamma photons produced by an annihilation event, determining whether the detection of the pair of gamma photons occurs within the time coincidence window, accepting the detected event only if the detection of the gamma photons occurs within the time coincidence window, calculating the spatial location of accepted annihilation event, and adding the calculated spatial location of the annihilation event to a stored distribution of calculated annihilation event spatial locations representing the distribution of radioactivity in the patient.

An interactive holographic display system includes a holographic generation module configured to display a holographically rendered anatomical image. A localization system is configured to define a monitored space on or around the holographically rendered anatomical image. One or more monitored objects have their position and orientation monitored by the localization system such that coincidence of spatial points between the monitored space and the one or more monitored objects triggers a response in the holographically rendered anatomical image.

There is provided a method for classifying and counting leukocytes with abnormal DNA amount, which comprises: (1) a step of staining cells in a sample obtained from a hematological sample by treatment with a hemolytic agent to lyse erythrocytes, with a fluorescent dye which can make a difference in the fluorescence intensity at least among mature leukocytes, leukocytes with abnormal DNA amount and immature leukocytes; (2) a step of introducing the sample containing the stained cells into a flow cytometer to measure scattered light and fluorescence of the respective cells; (3) a step of classifying leukocytes and coincidence cells / platelet clumps utilizing a difference in the intensity of a scattered light peak and a difference in the scattered light width; (4) a step of classifying and counting mature leukocytes, leukocytes with abnormal DNA amount and immature leukocytes, utilizing a difference in the scattered light intensity and a difference in the fluorescence intensity of leukocytes classified in the step (3).

By use of charged particle beam images picked up in different conditions, a positional displacement caused by parallax is analyzed, and an optics of an apparatus for charged particle beam microscopy is corrected automatically. An analysis method using phase difference of Fourier transform images and having analytic accuracy lower than that for one pixel is adopted for the displacement analysis. In addition, a degree of coincidence between images calculated in this analysis method is used as a criterion for evaluating the reliability of an analysis result. Since the analysis method based on parallax is low in specimen dependency, the operation range is expanded. In addition, by adopting a high-accuracy displacement analysis method, the apparatus correction accuracy is improved by one digit. A malfunction preventing flow is added using the degree of coincidence as a judgement criterion. Thus, the apparatus can deal with unmanned operation. In addition, the degree of coincidence can be used as a monitor of inspection states or a record of states in an inspection apparatus.

An audience measurement system generates signatures of unknown pieces of content viewed by panel members, and generates reference signatures of known pieces of content. The signatures of the unknown pieces of content are stored and transmitted to a central processing site, where they are compared with the reference signatures for their identification. A scanning engine finds matches between the signatures of the unknown and the known contents, and stores matches so as to build “tracking segments”, i.e., strings of matches that indicate a coincidence between the unknown content and one or more known pieces of content for a certain period of time, and associates the unknown content to the known piece of content with the longest tracking segment.

It is possible to provide an image processing apparatus capable of carrying out calibration easily and precisely without requiring a special facility and provide an imaging apparatus making use of the image processing apparatus. The imaging apparatus comprises at least two cameras 4a and 4b. The image processing apparatus or the image processing apparatus comprises a corresponding-area computing section 23 for finding a relation between areas on images taken by the cameras 4a and 4b; a coincidence-degree computing section 24 for finding a degree of coincidence of information obtained from corresponding areas on the images taken by the cameras 4a and 4b; and a camera-parameter computing section 25 for finding camera parameters on the basis of the coincidence degree computed by the coincidence-degree computing section 24.

Document retrieval system and method are disclosed which can diminish a gap between the user's retrieval intention in information retrieval and the configuration of a query as well as document representations in database and which permits easy retrieval reflecting the user's retrieval intention. The user enumerates a group of words which the user hits upon, as a primary query. Upon receipt of the primary query, the system estimates relational representations which the words (group) of the primary query can possess, and then makes expansion of the query through a partial coincidence of the relational representations and sample spaces extracted from document data to prepare a query candidate representation group. The expanded query candidate representation group is presented to the user. The user then simply chooses a relational representation candidate in accordance with his or her intention. A retrieval execution query is constituted by the thus-selected representation.

The invention relates to a high-speed electromagnetic valve driver circuit. An input signal buffer unit mainly performs buffering shaping on an input signal from an external central control unit and improves the antijamming capacity thereof; a high side current detection unit realizes current detection by detecting differential voltage of one resistor in a load branch circuit; a PWM signal generator mainly generates a PWM wave with fixed frequency, the current is controlled and kept by regulating the duty cycle of the waveform; a power drive unit mainly supplies enough power drive for a power NMOS tube so that the power NMOS tube can fully operate in a switch state and reduce switch loss and heating; a signal time delay unit outputs a time delay for a current detection signal; in the delay time, the power NMOS tube is cut off, so that a coil can have afterflow; a logical gate circuit unit is a coincidence gate and generates a synchronizing signal required by the PWM signal generator after performing phasing on the current detection signal and a time delay signal thereof.

Disclosed is a position calculating system for a haulage vehicle including wheels and a body frame mounted on the wheels. The system includes an attitude detection sensor fixed on the body frame, a wheel rotational speed sensor, a loading status information acquiring unit, a correction amount setting unit, a velocity vector calculating unit, and a position calculating unit. The loading status information acquiring unit acquires loading status information indicating whether the body frame is in a loaded state or in an unloaded state . The correction amount setting unit calculates, based on the attitude information, a correction amount required for bringing detection axes in the loaded state into coincidence with corresponding detection axes in the unloaded state. The velocity vector calculating unit calculates the velocity vector of the haulage vehicle. The position calpulating unit calculates a position of the haulage vehicle by using the velocity vector.