Abstract: A color device profile including a buffered color look-up table having outermost nodes that replicate nodes of an inner portion that are closest to the outermost nodes, and input tonal reproduction curves having a range that is smaller than an input range associated with the buffered color look-up table and greater than an input range associated with the inner portion.

Abstract: A method for encoding and decoding frames by generating a key bitstream such that the key bitstream never has to be stored is disclosed. The method consists of a key generation algorithm using a threshold matrix to generate a key that is very similar to original bitmap data. The key generation algorithm searches the bitmap for equivalent image sets that produce the same bitmaps. These equivalent image sets consist of runlength of constant image values and the actual runlength. Additionally, the image values for the runlengths are never explicitly encoded. During compression a preprocess algorithm XORs the MINIMAL number of hints required to find a equivalent image value for the runlength. The postprocess algorithm is capable of distinguishing if a single bit represents an image value adjustment hint or if it represents the end of a runlength.

Abstract: A method to compensate for dot placement errors includes receiving image data comprising a plurality of pixels, each having at least two states, a first corresponding to depositing no ink and a second corresponding to depositing ink; identifying a stray pixel pattern within the image data, the stray pixel pattern including a stray pixel corresponding to a misplaced dot in a dot pattern; and modifying the image data corresponding to the stray pixel pattern by setting the stray pixel to the first state and changing a second pixel from the first state to the second state.

Abstract: A method for differentiating between image and graphic objects contained within a Color Rendering Dictionary is disclosed. The differentiation between image and graphic objects is accomplished by monitoring the sequence in which Color Rendering Dictionary procedures are executed.

Abstract: Dynamic Color Render Dictionaries are provided to automatically switch color rendering behavior between object types. The implementation resides entirely within the Color Render Dictionary (CRD) and require no changes to the state of the Postscript interpreter (There are no required “C” code changes and Postscript operator redefinitions.) The different color rendering behaviors are accomplished by concatenating multiple color transform tables into a single/RenderTable within the CRD. The different rendering behaviors are accessible to single graphics state by simply accessing different regions of the /RenderTable. By having the color rendering behavior “switch” without changing the graphic state makes the implementation very fast. Since the entire implementation is limited to the Color Rendering Dictionary, dynamic CRDs may be implemented on any existing Postscript printer. Even on ones that have been in the field for years.

Abstract: A method for encoding and decoding frames by generating a key bitstream such that the key bitstream never has to be stored is disclosed. The method consists of a key generation algorithm using a threshold matrix to generate a key that is very similar to original bitmap data. The key generation algorithm searches the bitmap for equivalent image sets that produce the same bitmaps. These equivalent image sets consist of runlength of constant image values and the actual runlength. Additionally, the image values for the runlengths are never explicitly encoded. During compression a preprocess algorithm XORs the MINIMAL number of hints required to find a equivalent image value for the runlength. The postprocess algorithm is capable of distinguishing if a single bit represents an image value adjustment hint or if it represents the end of a runlength.

Abstract: A method to compensate for dot placement errors includes receiving image data comprising a plurality of pixels, each having at least two states, a first corresponding to depositing no ink and a second corresponding to depositing ink; identifying a stray pixel pattern within the image data, the stray pixel pattern including a stray pixel corresponding to a misplaced dot in a dot pattern; and modifying the image data corresponding to the stray pixel pattern by setting the stray pixel to the first state and changing a second pixel from the first state to the second state.

Abstract: An upper wood frame member carrying a slate bed is spaced apart from and in parallel to a lower wood frame member. An upper plate is affixed to the bottom surface of the upper frame member with screws through mounting holes. A lower plate is affixed to the upper surface of the lower frame member with screws through mounting holes and has a threaded aperture aligned with a bore through the lower frame member. A vertically adjustable support screw extending downward into the bore is threaded through the threaded aperture and has an axially aligned pin extending upward which fits into a congruent cavity in the upper plate open to the bottom surface. The vertically adjustable support screw has a cap head at the bottom end disposed within the bore through the lower frame member upon which torque may be exerted with a socket wrench.

Abstract: This disclosure depicts a novel apparatus for use in a color television picture tube having a faceplate attached to the mouth of a funnel portion. The faceplate has an electron excitable phosphor screen deposited on the inner surface thereof, the phosphor screen having groups of at least two different types of phosphor elements. The funnel portion has a neck attached thereto opposite the mouth, the neck containing an electron gun assembly having at least two electron guns for directing at least two streams of electrons towards the phosphor screen. The two types of phosphor elements differ in the intensity of their light output for a predetermined current in the impinging electron stream, that is, they have different functional dependencies on the current of the electron stream.