462 results about "Rapid scan" patented technology

The invention provides imaging apparatus and methods useful for obtaining a high resolution image of a sample at rapid scan rates. A rectangular detector array having a horizontal dimension that is longer than the vertical dimension can be used along with imaging optics positioned to direct a rectangular image of a portion of a sample to the rectangular detector array. A scanning device can be configured to scan the sample in a scan-axis dimension, wherein the vertical dimension for the rectangular detector array and the shorter of the two rectangular dimensions for the image are in the scan-axis dimension, and wherein the vertical dimension for the rectangular detector array is short enough to achieve confocality in a single axis.

A method for the detection of analytes using resonant mass sensors or sensor arrays comprises frequency encoding each sensor element, acquiring a time-domain resonance signal from the sensor or sensor array as it is exposed to analyte, detecting change in the frequency or resonant properties of each sensor element using a Fourier transform or other spectral analysis method, and classifying, identifying, and / or quantifying analyte using an appropriate data analysis procedure. Frequency encoded sensors or sensor arrays comprise sensor elements with frequency domain resonance signals that can be uniquely identified under a defined range of operating conditions. Frequency encoding can be realized either by fabricating individual sensor elements with unique resonant frequencies or by tuning or modifying identical resonant devices to unique frequencies by adding or removing mass from individual sensor elements. The array of sensor elements comprises multiple resonant structures that may have identical or unique sensing layers. The sensing layers influence the sensor elements' response to analyte. Time-domain signal is acquired, typically in a single data acquisition channel, and typically using either (1) a pulsed excitation followed by acquisition of the free oscillatory decay of the entire array or (2) a rapid scan acquisition of signal from the entire array in a direct or heterodyne configuration. Spectrum analysis of the time domain data is typically accomplished with Fourier transform analysis. The methods and sensor arrays of the invention enable rapid and sensitive analyte detection, classification and / or identification of complex mixtures and unknown compounds, and quantification of known analytes, using sensor element design and signal detection hardware that are robust, simple and low cost.

The invention provides imaging apparatus and methods useful for obtaining a high resolution image of a sample at rapid scan rates. A rectangular detector array having a horizontal dimension that is longer than the vertical dimension can be used along with imaging optics positioned to direct a rectangular image of a portion of a sample to the rectangular detector array. A scanning device can be configured to scan the sample in a scan-axis dimension, wherein the vertical dimension for the rectangular detector array and the shorter of the two rectangular dimensions for the image are in the scan-axis dimension, and wherein the vertical dimension for the rectangular detector array is short enough to achieve confocality in a single axis.

The present invention discloses a method and system for generating, analyzing and decoding a two-dimensional barcodes representing, for example, the contents of a business card or contact information in stored in a PDA or mobile phone. In an embodiment of the invention, a process is provided for generating a two-dimensional barcode from the contact information stored in a software database such as a Personal Information Manager (PIM), Customer Relationship Manager (CRM), PDA or mobile phone contact list. The contact data is exported from the database or handheld device into a standardized format such as vCard that is broadly used for exchanging contact information. The vCard data strings are encoded into Base64 and converted into the Unicode universal character set that provide wide ranging compatibility for various language scripts including many non-western character scripts. The data strings are encrypted and from which a unique two-dimensional barcode is generated that can be imprinted on business cards or on other printed material. In another embodiment of the invention, business cards and other printed material having a two-dimensional barcode generated by the invention can be quickly scanned such that the barcoded contact information is analyzed and converted for compatible use with numerous types of software such as personal information managers (PIM), Customer Relationship Managers (CRM), or electronic device contact lists without the need for supplementary user intervention.

An aerially deployed illumination system is provided which may be remotely operated or preprogrammed to illuminate a designated target, such as a geographic area, vehicle, or personnel. In particular, a remotely controlled UAV having an illumination system disposed thereon is provided, the illumination system comprised of a concentrated light source and light movement apparatus operable to rapidly scan the target with the light source, thereby providing an illusion of a large area of illumination. Preferably, a line is created from the light source, the line being rapidly moved over the target in specific patterns and at specific frequencies. The system may further include a plurality of UAV's capable of ad hoc networking, so as to illuminate both large areas, as well as stationary and moving targets. In addition, the UAV's having an illumination system disposed thereon may be disposed within a projectile, the projectile tube or gun launched, and the UAV ejected from the projectile over a designated target, thereby enabling quick delivery of the UAV to an area of interest.

An algorithm is quickly scans a digital image volume to detect density nodules. A first stage is based on a transform to quickly highlight regions requiring further processing. The first stage operates with somewhat lower sensitivity than is possible with more detailed analyses, but operates to highlight regions for further analysis and processing. The transform dynamically adapts to various nodule sizes through the use of radial zones. A second stage uses a detailed gradient distribution analysis that only operates on voxels that pass a threshold of the first stage.

The present invention relates to technology and apparatus with high energy beam to sinter or melt and deposit material successively to realize laminated solid manufacture. The present invention features that the electronic beam scan controller controls the electronic beam to scan fast in pattern projection mode for heating powder homogeneously. Each scanning of the electronic beam has short time in the selected area, so that the scan initiating point has no great temperature change generated during the whole scanning course. Through one or several frames of scanning, the material in the forming area has temperature synchronously raised to reach the sintering or re-melting temperature for deposition onto the forming area before synchronous cooling. The present invention has greatly reduced heat stress and raised forming precision and quality.

A scanner for obtaining an image of an object placed on an at least partially transparent platform, wherein the platform is defined by edge portions and has at least including a first scan area and a second scan area. In one embodiment, the scanner includes a white area formed at least partially around the edge portions of the platform with a plurality of markers, optical means for sequentially scanning consecutive partial images of the object from the first scan area and the second scan area, respectively, wherein each of the consecutive partial images include an image of at least one of the plurality of markers, and an image processing system for using the image of the at least one of the plurality of markers in each of the consecutive partial images as a reference to combine the consecutive partial images so as to form a substantially complete image of the object corresponding to a full scan of the first scan area and the second scan area.

A method for manufacturing a thin film photovoltaic module comprising series connected cells, the cells comprising a front contact, a back contact and a photovoltaically active region positioned between the front and back contacts, the series connected cell being formed by scribing a front contact layer, a photovoltaically active layer and a back contact layer on a substrate, the method comprising laser scribing at least one of the front contact layer, the photovoltaically active layer or the back contact layer to form laser scribes using a laser beam scanned rapidly over the layer.

A method of enhancing the readability of rapidly displayed text and with rapid apprehension, at a rate which is greater than the maximum unaided reading capability of that subject using the method. The method comprises a rapid and sequential moving of the words of text through a window on a screen of a computer monitor. In accordance with the method, the words are allowed to pass through or be displayed in the display window, one word at a time, and at a rate in which the time for display which is based on the number of characters in a word is related to and a function of the total amount of time required for all of the words in a segment of the text to be displayed. A time for display of each word of average character length is the same, and that certain words in a segment will be displayed for a longer period of time than other of the words. Usually, the words which contain more characters will have a longer display period. The present invention also provides an area on the screen of the monitor in which the previously read words of the segment of the text are printed as a full display, such that the reader may rapidly review the words of that segment previously presented on the window of the monitor, and then also rapidly scan entire portions of the text which have already been displayed. The method also involves the use of a selected color and patterned background, to enhance readability. In accordance with this method, the reading rate is substantially increased, and eye fatigue and strain is substantially reduced.

A system and method for managing access to a satellite-based transponder by a plurality of aircraft each having a mobile radio frequency (RF) system. The system employs a ground-based, central control system for managing access to the satellite-based transponder so that the aggregate power spectral density (PSD) of the RF signals of all the mobile systems does not exceed, at any time, limits established by regulatory agencies to prevent interference between satellite systems. This is accomplished by a dual control loop arrangement for monitoring the signal-to-noise ratio (Eb / No) of the RF signal transmitted by the satellite-based transponder. A ground-based control loop is used whereby a ground-based central controller monitors the Eb / No and transmits commands to the aircraft (via the satellite transponder) to maintain the Eb / No of the transmitted signal within a predetermined range. A fast scan angle compensation is used by the mobile system of the aircraft to implement another control loop to further adjust the transmit power. This control loop maintains the Eb / No of the signal transmitted to the satellite-based transponder at the commanded level inbetween updates from the ground-based central controller.

A tandem mass spectrometer includes a two-dimensional ion trap that has an elongated ion-trapping region extending along a continuously curving path between first and second opposite ends thereof. The elongated trapping region has a central axis that is defined substantially parallel to the curved path and that extends between the first and second opposite ends. The two-dimensional ion trap is configured for receiving ions through the first end and for mass selectively ejecting the ions along a direction that is orthogonal to the central axis, such that the ejected ions are directed generally toward a common point. The tandem mass spectrometer also includes a collision cell having an ion inlet that is disposed about the common point for receiving the ions that are ejected therefrom and for causing at least a portion of the ions to undergo collisions and form product ions by fragmentation. A mass analyzer in communication with the collision cell receives the product ions from the collision cell and obtains product ion mass spectra with a rapid scan rate. In this way, a plurality of product ion spectra may be obtained for a large number of precursor ions in a sample without the need for data-dependent operation.

A LADAR system for coherently imaging a target within a volume has a modulated laser transmitter at a frequency and a receiver. The receiver has a plurality of lenses, each with its own detector. Each detector is supplied by a centrally located local oscillator tuned to the frequency. The paths from the local oscillator to each detector, as well as the delay within each lens / detector combination are measured during a calibration. A calibrating reflector reflects a test signal during the calibration at many frequencies, temperatures and accelerations. Measurements of paths and delays obtained during the calibration are stored, and used to phase compensate subsequent target reflections for coherent processing.

The invention provides a laser radar interference immunity enhancing method comprising the following steps: carrying out non-continuous multiple scanning for a random single target point, and carryinglaser fast coding for each time scanned laser signal. The multiple measuring behaviors aiming at each target point are non-continuous under fast scanning conditions, thus ensuring the measuring result high refresh rate and reliability; the laser fast coding is to convert the pulse signals in a single pulse period of the existing pulse laser into continuous and / or discrete subpulses with at leasttwo different pulse intensities and / or pulse widths; a series of subpulses as a whole body in the single pulse period can form a detection signal unit of the single target point emitted by the laser radar. The fast coding method is applied to each measuring time of the single target multiple measures, thus further enhancing the laser radar measuring reliability in each time, reducing the single target measuring frequency on said basis, and further improving the measuring result refresh rate.

Methods and apparatus for providing dynamic signal processing with, in one exemplary embodiment, a fast swipe image scanner. Dynamic signal processing comprises determining the rate of motion of a dataform, for example a barcode, which is passed in front of the scanner's data collection module. Then, based on the rate of motion, applying a signal processing method to the dataform. The complexity of the selected signal processing method used to decode the dataform can be chosen based on the detected rate of motion of the dataform. In alternate embodiments two or more algorithms are processes concurrently.

An improved soil-working implement. The implement comprises a shank having a free-end portion; a one-piece adapter defining a recess, wherein the adapter is removably affixed to the shank free-end portion; a one-piece shovel; and an elastomeric element frictionally removably retained within the recess of the adapter.

An apparatus for electronically controlling a quadrupole in a mass spectrometer, comprises radio frequency (RF) drive circuitry and direct current (DC) drive circuitry coupled to a quadrupole, an RF control loop associated with the RF drive circuitry, a DC control loop associated with the DC drive circuitry, and control loop circuitry associated with the DC control loop, the control loop circuitry configured to alter a response of the DC control loop during a settling time period of a step response such that ion transmission through the quadrupole is greater during the settling time than if the response of the DC control loop during the settling time is unaltered.

A method for determining a surface in a material is described. During this method, arrival times of a wavefront at a first depth in the material are calculated using an Eikonal equation. Note that the first depth is proximate to an outer surface of the material. Next, arrival times of the wavefront at a second depth in the material are calculated using the Eikonal equation and the calculated arrival times at the first depth. Then, the surface in the material is determined based on the calculated arrival times at the first depth, the calculated arrival times at the second depth, and a given time interval. Note that arrival times at a given depth in the material, which includes the first depth or the second depth, are calculated by directly determining a steady-state solution of the Eikonal equation.

The invention provides a photo-curing 3D forming system adopting an LED array micro-projection light source. LEDs in the LED array light source are equidistantly distributed in the y direction and equidistantly staggered in the x direction. Lower LED array light sources are gathered to form a micro-projection beam array with dense distribution through a lens array group and a photomask plate to facilitate quick scanning and curing of a part model with small structural size. Moreover, single LEDs in the LED array light source are independently controlled through computer-single chip microcomputer parallel communication, the number of LEDs needing to be driven in the LED array light source is regulated in real time through a computer according to two-dimensional section information of each layer in the scanning process, and the scanning and curing are finished with an X-Y mobile platform controlling the micro-projection beam array to move in the X-Y horizontal direction. By taking original photo-curing 3D forming equipment as an application basis, the photo-curing forming system can improve the manufacturing efficiency and reduce the cost while guaranteeing the prototype manufacturing accuracy.

An optical coherent chromatographic system using micro-lens array to carry out scanning consists of light source, collimation lens, splitting prism, fibre coupling unit with multi-path, three micro-lens or micro-prism arrays , quick delay line , detector array and micro-shift device. It is featured as using above devices to change spot light source to be parallel beam , focusing it on object , meeting reflection light of object with reflection light from delay line on splitting prism for generating interference focused to detector array .

The invention relates to a data recovery method and system for recovering the HFS+file system under MAC OSX of Apple. The method comprises the following steps: A, reading a log; B, analyzing the log; and C, recovering a file by use of the file description information contained in the log. The file description information comprises file name, file path, creation time and data area of the file; andthe file path comprises the ID of the directory entry of the file as well as the ID of parent directory entry. The data recovery method and system provided by the invention have the beneficial effects that: data recovery is performed through the HFS+file system according to the log, the effect of quick scanning under MAC is realized, the shortcomings of no original file name, no file path and thelike in data file recovery under MAC are overcome, and the speed is many times faster than that of the deep scanning.

The invention relates to a quick laser cladding device of flat metal parts. The quick laser cladding device comprises five modules, namely an electrostatic powder spraying device, a quick laser galvanometer scanning device, a gas protection module, a parts conveying module, and a parts fixing clamp. The quick laser cladding device has the advantages of low equipment building and operating costs, fast powder adding method, fast cladding speed, good cladding layer surface quality, accurate and controllable cladding layer thickness and the like. According to the quick laser cladding device, the system building and operating costs are reduced, the production efficiency is improved, and good cladding quality is also obtained. By adopting the method, the requirements of cladding the flat metal parts at low cost, large batch, high speed and high quality can be met.

The invention discloses a system and a method for processing dynamic focusing scanning spot track of optical fiber laser or disk laser. Aiming at the defects in scanning technology of the current laser scanning welding system, an optical fiber laser or a disk laser, a PSD displacement sensor, and a dynamic focusing fast scanning head driven by a high-accuracy hollow-shaft linear motor are adopted for implementing loop closing and real-time control of a dynamic focusing module, in order to perform spot scanning processing of fast spot track on workpiece. The system and the method have the advantages of large processing scope, high quality, fast welding or spotting speed and high efficiency, in addition, accuracy and welding quality of the system are enhanced effectively, 3D welding can be realized, and extensive application value in the field of advanced manufacture is achieved.

Methods and apparatus for providing dynamic signal processing with, in one exemplary embodiment, a fast swipe image scanner. Dynamic signal processing comprises determining the rate of motion of a dataform, for example a barcode, which is passed in front of the scanner's data collection module. Then, based on the rate of motion, applying a signal processing method to the dataform. The complexity of the selected signal processing method used to decode the dataform can be chosen based on the detected rate of motion of the dataform. In alternate embodiments two or more algorithms are processes concurrently.

A beam scanner is operable to scan light in two or more axes, typically in a raster pattern that includes a fast scan axis and a slow scan axis. Plural beams of light are scanned, each beam of light producing a scanned region that at least partially overlaps at least one adjoining scanned region. Scanned regions may be aligned to adjoin and overlap along a dimension corresponding to the slow scan axis. The beam scanner may comprise a scanned beam display and / or a scanned beam image capture device. In a display, the power level of overlapping displayed pixels may be scaled to provide smooth transitions between adjoining regions to improve the image quality presented to a viewer. In an image capture device, one or more detectors is operable to collect light scattered from adjoining regions and a controller is operable to produce an image from the scanned regions.

The invention relates to the technical field of laser cladding, in particular to a laser quick repair process method for a large rotary machine bearing bush. According to the laser quick repair process method, a layer of purpose-made powdered materials capable of meeting operating requirements is arranged on the surface of a part in advance; then, high-energy laser beams are used for quick scanning processing on the coating; the powdered materials arranged in advance melt instantaneously and solidify; base metal below the coating melts into a thin layer along with the coating, molecular or atomic interdiffusion quickly occurs in a quite narrow area in a boundary between the thin layer and the coating, and solid metallurgical bonding is formed at the same time; a substrate is extremely little affected by heat under a rapid heating condition and does not deform. The laser quick repair process method for the large rotary machine bearing bush achieves the effect that a local and whole-area Babbitt metal laser cladding layer is formed on the substrate made of cast steel and bronze alloy, a Babbitt metal layer which is 1.0-15 mm is formed as required, and metallurgical bonding between Babbitt metal and various substrates is realized; the laser cladding layer is low in dilution, compact in structure and free of delaminating, air holes, slag inclusion, cracks and other quality defects.

Automatic coil selection is based on determining an index gauge for a corresponding k-space data line acquired for each preselected coil during a prescan. Reliance on manual coil selection and markers is eliminated by adaptively determining the coils of an MR system that produce a preferred sensitivity to a desired field-of-view (FOV). The fast scan data is used to determine those coils most sensitive to the FOV and reject coil(s) least sensitive. Using only data acquired with the most sensitive coils, SNR is increased and unwanted artifacts are reduced in the final data acquisition and image reconstruction. Through automatic and adaptive selection / deselection, the invention reduces the susceptibility to human error, and therefore results in higher quality images.

A device for correcting YIG tuned filter scanning tuning nonlinearity in real time comprises an YTF, an YTF real-time calibration source part and an YTF tuning driving and compensating part, wherein the YTF real-time calibration source part and the YTG tuning driving and compensating part are connected to the YTF. Each frequency point has a single scanning tuning compensation value, therefore, compensation is finer, and the YTF is beneficial to being rapidly scanned and tuned. The device for correcting YIG tuned filter scanning tuning nonlinearity in real time can conduct real-time correction and calibration and avoid the influences of environment temperature change, YTF aging and other factors.