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Zen Radar Scan Converter (ZEN RSC) for Military, Defense and Police Forces Training ZEN Radar Scan Converter (ZEN RSC) interfaces with the radar receiver and processes signals to reduce noise and improve clarity. It performs the scan-conversation of the signals such that Radar Image can faithfully be presented on a raster scan display unit normally used with PCs, without the need for a specialized monitor. The versatile interface and processing enables ZEN Radar Scan Converter to scan simultaneously and present the image on a single display unit. zentechnologies.com /zen_radar_scan_converter.html   (178 words)

ANSDIT - The letter "R"   (Site not responding. Last check: ) A display image generated by a display device that uses a raster scan. A plotter that generates a display image on a display surface using a line-by-line scanning technique. A technique for generating or recording the elements of a display image by means of a line-by-line sweep across the entire display space. www.ncits.org /tc_home/k5htm/r1.htm   (2412 words)

Olympus FluoView Resource Center: Confocal Microscope Scanning Systems The capability to freely rotate the scan raster around the optical axis is a very important feature for confocal imaging as a means to optimize the scan direction with respect to specimen shape or other characteristics. The scanning mirrors are typically oscillated electromechanically by a moving-coil mechanism similar to that of a galvanometer, and are commonly referred to as galvo mirrors. Scanning a single mirror on two orthogonal axes is the simplest method of generating a two-dimensional scan raster (see Figure 6). www.olympusconfocal.com /theory/confocalscanningsystems.html   (3762 words)

Raster - Wikipedia, the free encyclopedia Raster graphics, graphical techniques using arrays of pixel values Raster scan, the pattern of image readout, transmission, storage, and recontruction in television and computer images. Rasterisation, or rasterization, conversion of a vector image to a raster image en.wikipedia.org /wiki/Raster   (135 words)

Apparatus for scan conversion - United States Patent 4,241,341 By accessing the information in the scan line buffer memory sequentially beginning with the piece of information describing the first position on the scan line, the information describing the attributes of the scan line is made available in the order in which it is required by the raster scan device. By calculating successive scan lines ahead of the scan of the display, the information describing the attributes of the screen is made available continuously to the raster scan device, forming a frame from successive scan lines and forming a visible image from successive frames. For each scan line to be displayed, those pieces of information describing a portion of the picture crossed by that scan line are passed to the display processor 102, to calculate their contributions to the appearance of the scan line. xrint.com /patents/us/4241341   (4409 words)

Olympus Microscopy Resource Center: Digital Imaging in Optical Microscopy - Fundamentals of Video Imaging Because the amplitude of the electrical signal is proportional to the brightness of the image being scanned, the current or voltage at a particular point in the signal corresponds to light intensity of the image at that point (voltage c(1) corresponds to intensity C(1)). Horizontal and vertical movements of the image scanning beams in a vidicon camera and monitor are generated by either magnetic or electrostatic deflectors, which provide the constant-velocity scans needed to drive the horizontal scan lines, vertical deflection, and rapid flybacks. Scanning frequencies for the H scan are much higher, producing faster rates and repeats that occur many times during a single vertical (V) scan. www.olympusmicro.com /primer/digitalimaging/videobasics.html   (2536 words)

Raster Scan Simulator's Graphical User Interface Definitions and Descriptions The period of the forward scan of the fast scan mirror is the width of the frame. The period of the forward and backward scans of the fast scan mirror is the width of the frame. For the rectangular and linear rasters, M = 1.1*N. If the see saw raster is selected, then M = N since the time period for the forward scan of the slow scan mirror is equal to the time period for the backward scan and even number frames are scanned during the backward scan. www.math.montana.edu /~parker/vision/Simulator/directions.html   (989 words)

Raster display smoothing technique   (Site not responding. Last check: ) An apparatus and method for smoothing the reproduction of digitized waveforms on a raster scan line display by providing control signals which increase and decrease the electron beam pattern along the scan line in a trapezoidal pattern which is representative of the amplitude of the sampled waveform along that scan line. All digital signals for a frame of raster scan lines are stored in a RAM during the frame blanking intervals, the addresses of the raster scan lines within the RAM being provided by passing them through a scroll counter during writing i.e., during the frame blanking intervals. After a delay along the raster scan dictated by the delay circuit, a switchable current source is switched by the delay circuit output signal to switch current into the increasing ramp circuit where output is provided to a combination output circuit. www.stickebana.com /scitech/failed_fuel_detection_arrangements/raster_display_smoothing_technique.html   (6475 words)

Graphics display systems - United States Patent 4,586,036 Conventional raster scan display systems, including TV receivers, utilize a horizontal raster scan wherein the display is defined by a plurality of horizontal lines, each defining the respective line of the overall image. Generally however, such systems are otherwise conventional, the vertical raster scan being used only as a consequence of rotating a conventional wider than tall display to achieve a display that is taller than it is wide. Since only one point per graph per raster scan is required, data compaction techniques may be used so that the amount of memory required to store the information to be displayed is grossly reduced over that required for conventional bit mapped raster scan systems. xrint.com /patents/us/4586036   (9774 words)

SDTS: Spatial Data Transfer Standard - Part 1, Logical Specification   (Site not responding. Last check: ) A raster object may consist of different layers, each layer being composed of a number of grid cells, pixels, voxels, or n-dimensional cells (See 2.3.4.3), henceforth to be referred to as cells, arranged in an array. A raster object consists of one or more related layers of cells arranged in such a way that corresponding cells between layers are registered to a common scan reference system (to be defined) and overlap, but need not be of the same spatial extent. The use of the raster portion of the standard is not restricted to raster transfer using a row-column layout. mcmcweb.er.usgs.gov /sdts/SDTS_standard_nov97/part1b27.html   (3524 words)

Raster scan digital display system with digital comparator means - Patent 4706079 In a bit mapped raster scan digital display system, a number of maps each contain a single component of the display data and are read together to provide sets of bytes, each set representing eight pel defining groups. In order to do this, the digital signals for each scan line must be compared with the color of the figure firstly as the scan line enters the figure, and then as it leaves it. It is, therefore, an object of the invention to provide, in a raster scan display system, means for comparing sets of picture element (pel) data with a reference data set without using separate bit manipulation or individual bit testing techniques. www.freepatentsonline.com /4706079.html   (2458 words)

Display Devices Raster scan crts (tv scan video monitors or display monitors) are used extensively in the display of alphanumeric data and graphics. When the vertical sweep reaches the bottom line of the raster, a vertical blanked retrace returns the sweep to the starting position of the raster, and the process is repeated. A sequential scan similar to a crt raster is used. www.tpub.com /neets/book22/92g.htm   (1943 words)

Video Imaging Draft2   (Site not responding. Last check: ) A raster scan involves scanning a narrow electron beam horizontally accross the camera target or the monitor screen in a sequential manner as illustrated in figure 4.14. The beam first scans from point A to point B, then is repositioned to point C and scans from there to point D, and this process is repeated to the bottom of the target/screen. The raster scan occurs on a continuous basis in most video systems and the rate of image capture is designed to give movements within an image a continuous appearance. www.bh.rmit.edu.au /mrs/kpm/EPCR/CR_VidImag.html   (1572 words)

Raster-Scan for Calibration of DNS Antennas Since this information is obtained from the two-dimensional Fourier transform of the two-dimensional amplitude and phase data obtained as the antenna beam is scanned, relative to the source, a square scanning pattern suggests itself as being the simplest in terms of both data analysis and mechanical motion of the antenna. Regardless of the scan geometry chosen, it is necessary to make these measurements as a function of antenna beam elevation and azimuth so that the dependence of antenna performance on these angles may be determined and compared with that expected from theory. A second important aspect of the method is that the source is scanned in a raster, or TV-type pattern by stepping from line to line, so that a complete data set corresponding to a complete raster contains all of the relevant data and not just a sampling of it along two orthogonal directions. deepspace.jpl.nasa.gov /technology/TMOT_News/aprl98/phr_drj.html   (1232 words)

ORBIT/FR - AL-4x06 Series Positioner Controllers The alternating motions of scanning in the primary axis and stepping the secondary axis continue until a predetermined sector in the secondary axis is covered. The initial and final position angle values of the scan sectors, both primary and secondary, are defined as well as the angular intervals at which increments are delivered. Raster A Mode The axis is brought to the scan starting position for both axes. www.orbitfr.com /?ItemID=153   (1701 words)

Circuit and method for producing a full-screen cross-hair cursor on a raster-scan type display - Patent 4190834 For example, with a display area comprising 480 (740 octal) raster lines of 640 (1200 octal) divisons each, register 22 and counter module 26 should each be at least ten bits wide and register 24 and counter module 28 should each be at least nine bits wide. When the electron beam reaches the end of the raster line, the LINE signal is caused to drop and the clock module 64 ceases operation. Upon reaching the end of the last raster line, the electron beam of the cathode ray tube 32 is repositioned to the upper left hand corner of the display area and the entire process is repeated. www.freepatentsonline.com /4190834.html   (2593 words)

Stroke Graphics and Raster Scan: the Old and the New - Computer Graphics Primer All television sets rely on a technique called “raster scanning.” In raster scanning the crt beam is deflected in a weaving pattern that sweeps across the screen and down many times per second as shown in Fig. The raster scanned television screen can thus be imagined as a superdense matrix of about 1024 dots by 512 lines that is sent to the tv line by line. On the minus side, raster scanning means we must store all the dots that make up a shape rather than just the end points of vectors as in stroke graphics. www.atariarchives.org /cgp/Ch02_Sec01.php   (710 words)

Raster scan radar with true motion memory (US4833475) A scan converter generates x,y addresses along azimuth sweeps from the x,y coordinates of own-ship relative to an arbitrary true reference origin. The x,y coordinates are coupled to a PROM which rolls over the x,y coordinates that are outside of the x,y address field of the memory thereby enabling the addressing of the memory for storing data derived from corresponding polar coordinate video data. Data in the memory is used to raster scan a visual display. www.delphion.com /details?pn10=US04833475   (480 words)

Autovectorization,AutoCAD,MicroStation Conversion Services, Raster To Vector(R2V),Scan 2 Cad Autovectorization,AutoCAD,MicroStation Conversion Services, Raster To Vector(R2V),Scan 2 Cad We have the ability to scan paper, aperture cards, film to AutoCAD, MicroStation, D-Tools, ArcInfo, Catia, and most other CAD systems - literally any CAD product you have. Please call us for further details about raster to vector conversion. www.cadcam.org   (190 words)

Document Scanning - Document Scanners @ AA Scan AA Scan can help you capture your large drawings into a digital format that can be used for modification and electronic drawing management. Vector scanning is designed for topographic maps, and is usually not acceptable for most applications. If you would like a sample of a vector scanned drawing, please contact Director of Sales and Marketing at (330) 794-6940 or at sales@aascan.com and he will be happy to further describe the differences in these two services and e-mail you samples of both products. www.aascan.com /drawing.htm   (372 words)

Bolocam Web Page: Information for Proposers Higher scan speeds in chopped mode are not advised because the individual bolometer sampling of the target field becomes poorer. Slower scan speeds are susceptible to slow drift in the chopper-synchronous offset. If the center of the array scans to a certain point, only half the array has scanned past that point, so the coverage is reduced to approximately 50% of its value at the center of the field. www.cso.caltech.edu /bolocam/ProposerInfo.html   (2346 words)

Two-Dimensional Mapping of Copper and Zinc in Liver Sections by Laser Ablation-Inductively Coupled Plasma Mass ... Reproducibility and intensity of copper, zinc, and carbon of the raster scans in CRM pig liver LGC 7112. Reproducibility and intensity of copper, zinc, and carbon in the raster scan from a thin section of NR sheep liver. Reproducibility and intensity of copper, zinc, and carbon of the line scan of a length of 1500 µm from a thin section of NR sheep liver. www.clinchem.org /cgi/content/full/49/11/1916   (3300 words)

UI Central Microscopy Research Facilities These coils raster or scan the focused electron beam over the surface of the specimen. The scan of the raster coils is synchronized with the scan of the viewing screen. Since the size of the viewing CRT is fixed, the information generated by a shorter scan on the specimen must be enlarged to fill the viewing CRT. www.uiowa.edu /~cemrf/methodology/sem/index4.htm   (612 words)

Photoimiaging: Raster Scan CRT assembly and core scanner for raster scanning from Thomas Electronics Photoimiaging: Raster Scan CRT assembly and core scanner for raster scanning from Thomas Electronics Raster Scan CRT Assembly for Photo Recording - Data Sheet This photo recording product (Raster Scan CRT Assembly) has a downloadable data sheet listing photoimaging and digital photographic specifications characteristics and operating conditions. www.thomaselectronics.com /photoimaging/04M314PT760_raster_scan_crt_display.php   (134 words)

RASTER SCAN SYMBOL GENERATOR (US3668687) A raster scan character generator which forms different sized characters with dot pattern forming nets which are shared by characters employing common dot patterns. The dot pattern generator includes vertical, horizontal and slant dot pattern forming networks which respond to the dot pattern identifier stroke signals as well as to the scan line and dot signals to provide a signal pattern indicative of a selected character of a selected size. In display apparatus for generating symbol patterns for display on a display device which exhibits a television raster scan line pattern wherein rows and columns of symbol spaces are defined by sequences of scan line signals and sequences of dot signals, respectively, the improvement comprising: www.delphion.com /details?pn10=US03668687   (370 words)

Symbol M2000 Series Cyclone Adaptive Scanner Raster Scan Pattern: The Cyclone’s scan pattern automatically covers 2-D and CS symbols for the best scanning performance on damaged and poorly printed bar codes, while eliminating the need for operator training. Semi Omni Scan Pattern: The “Semi Omni” scan pattern is a combination of the omni-directional and raster scan patterns. High Density Single Line Scan Pattern: The Cyclone’s single scan line appears as a “mini” raster and scans multiple areas of 1-D codes to swiftly and accurately capture data on poorly printed and damaged bar codes. www.idautomation.com /scanners/M2000_Cyclone.html   (1683 words)

: : Samsung Electronics : : HDTV In the raster scanning system, pictures are formed by a fast-moving electron gun, which traces lines of picture information horizontally across the picture tube from top to bottom. A total of 525 picture lines are scanned in each frame, with 262.5 "odd" numbered and 262.5 "even" numbered scan lines forming a complete picture. The big advantage of a raster system is its ability to handle an infinite number of resolutions by simply varying the horizontal and vertical picture scanning rates. www.cyberscholar.com /Samsung/dtv/module_3_9.cfm   (669 words)

XuScanFloatDraw   (Site not responding. Last check: ) Scan line is skipped and nothing is drawn. The data that are input to this function are transformed into a raster scan image in which the colors and shades are calculated according to user specifications. To activate horizontal scanning, the function XuScanDirection must be called prior to XuScanFloatDraw. www.uea.ac.uk /itcs/docs/unixwebdocs/help/agx/GIMAGE.html   (643 words)

Observations of Jupiter, Saturn, and Mars For each set of planet scans, a single linear drift in time is fitted to those portions of the data corresponding to times when the telescope was pointed well away from the target planet. For the raster observations, each of the nine horizontal scans was fitted to a cubic spline with 30 uniformly spaced knots. For this procedure, the early Jupiter raster is used for fitting the two scans at the beginning of the flight, while the late Jupiter raster is used for the two scans at the end of the flight. ecf.hq.eso.org /~ralbrech/sepdec97apjl/965854.html   (2685 words)

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