Abstract: A method of forming a water soluble biocidal film on a solid household, food preparation, or medical surface, which protects the solid surface against reinfection by microorganisms, includes providing a liquid biocidal composition comprised of, based on total weight of the liquid biocidal composition from 0.1 to 5.0 wt. % of a phenolic biocide; from an amount effective to impart film-forming properties to the liquid biocidal composition up to 8 wt. % of a polyvinyl pyrrolidone polymer or copolymer; and an aqueous alcoholic solvent in which the phenolic biocide and the polyvinylpyrrolidone polymer or copolymer are dissolved; treating the solid surface with the liquid biocidal composition; and evaporating the aqueous alcoholic solvent to provide a clear film, wherein a ratio of the phenolic biocide to the polyvinylpyrrolidone polymer or copolymer is selected to range from 1:0.8 to 1:3 so that a complex there between is provided which dries clear.

Abstract: A non-woven fabric treated with a biocidal composition including at least one halogenated phenolic biocide; a water soluble, film forming polymer which is a polyvinylpyrrolidone polymer or copolymer; and at least one surfactant, wherein a complex is formed between the halogenated phenolic biocide and the polyvinylpyrrolidone polymer or copolymer so that, after treatment of the non-woven fabric therewith and drying, no cloudy residue remains on the non-woven fabric.

Abstract: A graphic system for a color copier includes a memory card for storing input object image data, a host processor connected to a user controllable keyboard for selecting and editing the object image data to create edited image data, a real-time processor for rendering the edited image data to output an image signal, and a communicator for communicating with the copier.

Abstract: An object-based computerized graphics system for reproducing an image on a display device having a plurality of scan lines upon each of which a plurality of pixels are reproducible. The system includes information-providing means for providing graphic object information for at least one graphic object intended for reproduction, the graphic object comprising an outline representation of the graphic object. The outline representation is formed from at least two curve fragments, each curve fragment being defined by a single non-parametric quadratic polynomial. Also included in the system is rendering means for rendering the at least one graphic object. The rendering means is configured to determine, for each curve fragment, a first intersection between each curve fragment and a scan line of the display device. The rendering means is also used to determines using two computer-implemented mathematical operations, each subsequent intersection between each curve fragment and other ones of the scan lines.

Abstract: An arrangement for sharpening the resolution of printed text in a color printing system is disclosed. An image processing system (1) includes a color conversion apparatus (2) for converting from one color space (RBG) to another color space (CMYK) for display on a color printer (8). The color conversion apparatus (2) includes a near-black correction unit (36) which detects near black-near white and near white-near, black transistions and when such a transition occurs, outputs a full,or deep black color in place of the near-black color.

Abstract: A color generation and mixing system includes a color priority level input, an effects input, an incoming color input, and a mix level input. From the level input, a base color is determined which is interpolated with the effects input, resulting in a generated color. The generated color is output and mixed with the mixing color in an interpolator under control of the mixing levels.

Abstract: An image processing apparatus for creating a color image by combining object image data with scanned image data includes a scanner for inputting image data and object image input device for inputting object image data. Host processor selects object image data from the input object image data and specifies parameters for editing the selected object image data to create edited object image data. Real-time processor edits the selected object image data according to the parameters specified by the host processor and combines the edited object imaged data with the scanned image data to create combined image data. An output device outputs the combined imaged data to form an image representing a combination of the scanned image data and the object image data.

Abstract: A colour conversion apparatus maps image data from an input colour space (RGB) to an output colour space (CMYK). A transfer function between the colour spaces is known relevant to an appropriate display medium such as a printer and this is divided into intervals for interpolating between the colour spaces. The intervals vary in length depending on the behavior of the transfer function with the intervals being shorter where the transfer function is not well behaved (i.e. rapid change in slope). Interpolation is performed over each interval based on mapping a volume of input pixel data to a corresponding volume of a component of output pixel data. Interpolation is performed between those points to derive an output pixel colour component value. The process is repeated for each primary colour component of the output colour space to produce composite output pixels. Near-white and near-black colour correction is also performed.

Abstract: Information displaying apparatus for displaying animated video signals and combination animated and real-time video signals includes a controller for providing control signals for the information displaying apparatus and a host processor for generating graphics commands according to the provided control signals. A real time object graphics processor, controlled by the host processor, receives the generated graphics commands and generates graphics object image data in real-time according to the received graphics commands. A video coder, controlled by the host processor, receives the generated graphics object image data and outputs a video signal which comprises at least part of the received graphics object image data.

Abstract: A real-time interactive entertainment device includes a host processor for controlling the operation of the device, a communicating device for receiving object based image data, and a real-time object (RTO) processor connected to the communication device for generating alterable animation image data based upon received object based image data and/or data stored within the device. The real-time object processor generates animation image data at a rate suitable for display in a HDTV system, and generates HDTV signals from the animated image data.

Abstract: In a real-time object (RTO) graphics system, an RTO processor is disclosed which incorporates an object sort unit and an edge calculation unit. Object fragment data for each graphic object is received by the RTO processor, and is temporarily stored in memory. The sort unit sorts the fragment data for each scan line by first decomposing the fragment data into ordered sets, and then, commencing with the first active pixel for each fragment that commences on a line, sorting the data within the set and linking the sorted set with the next ordered set. Once sorted, the edge calculation unit reads the fragment data in line and pixel order from memory and calculates object edge intersections for each fragment on the current line being rendered while updating the memory with data for the respective fragment for the next scan line. The edge intersections are output in real-time and displayed on a display device.

Abstract: An object based graphics processor includes an input device for receiving object outlines of an image intended for rasterized display, each of the outline comprising at least one object fragment, a sorter for sorting the object fragments into a rasterization sequence corresponding to a scan line in a raster format for rasterized display, and a storage having a first storage area and a second storage area connected to the sorter for storing the rasterization sequence in one of the storage areas. A reading device connected to the storage reads a previously stored rasterization sequence in real-time and calculates object edges in a respective scan line, and prioritizing device assigns pixel data values within each of the scan lines based upon priority levels assigned to the object edges. The pixel data values are output from the processor for rasterized display.

Abstract: A system for adding transparency to an object based rasterized image includes comparing edge information with a pixel position on a scan line in order to determine the active objects on the scan line based on level information and determining a highest active opaque object level and a highest active transparent object level. According to the present invention, whenever the highest active opaque object level and the highest active transparent object level intersect at one pixel location, the higher of the two levels is output.

Abstract: Method and apparatus for converting an object of a computerized graphics system defined by a plurality of spline formats into a corresponding object defined by a plurality of quadratic polynomial fragments (QPF). The method and apparatus include, for each spline of the object, selecting start and end points on the spline and designating the selected start and end points as control start and end points on the corresponding QPF, determining from the control points of the spline coefficients of a quadratic polynomial defining the QPF. The coefficients of the quadratic polynomial are used to determine if an error between the spline and the quadratic polynomial is below a predetermined level. In the case the error is below a predetermined level, QPF data describing the quadratic polynomial is determined from the coefficients of the quadratic polynomial.

Abstract: A system for filling at least one of a plurality of different object based rasterized images includes comparing each pixel position along a raster line with pixel edge intersection data of the plurality of different objects to determine if an edge exists at the pixel position, comparing, in the case no edge exists, a next pixel along the raster line while maintaining a currently displayed pixel fill level, and selecting fill level data for each possible one of the plurality of different objects to be represented at the pixel having an edge. A priority fill level of each of the plurality of different objects is determined based on the selected fill level data and one of the plurality of the different objects having the highest priority fill level data is displayed as the current pixel fill level.

Abstract: An orthodontic bracket and method of fitting is disclosed comprising a bracket of the type including a base portion adapted for attachment to the labial surface of a tooth:(i) A lock pin receiving portion having a substantially vertical opening extending there through for the lock pin;(ii) An arch-wire support portion extending substantially normal to the said vertical opening and being disposed between the opening and the base portion.The bracket being adapted for adherence to a tooth and including a slot comprising an arch-wire support portion for receipt of a ribbon arch-wire of substantially rectangular cross-section adapted to be inserted gingivo-occlusally into the support portion, wherein the base of said support portion is angulated at specific preset angles between 0 to 20 degrees.