Raw digital video data usually means a huge size file. To transmit and store such files, compression must be applied to the data. Different methods have been developed to digital signal compression, coding and representation. In particular, technology has been designed for video compression, coding .....
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Half-toning is a method to print multi-tone images using only two-tone colors. Such methods are commonly used in publishing and computer printers. There are several kinds of half-toning processing where inverse half-toning is a method to reconstruct a multi-tone image from a half-toned image. This.....
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A new technology is invented for the fabrication of thin photo-patterned (pixelated) polarizers with a desired local distribution of the polarization axis. This new technology allows thin photo-patterned (pixelated) neutral or color polarizers be fabricated for LCD application. The thickness of a .....
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Photonic band gap (PBG) materials are those periodic composites that possess spectral gaps in the frequency spectrum, in which electromagnetic waves cannot propagate in any direction within the material. Conventional PBG are based on Bragg scattering which limits the size of PBG structures for low-f.....
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Conventional graphite made from sulfuric acid-graphite intercalation compound (GIC) contains much amount of sulfur, which cause environmental pollution and corrosion.The invention provides a new formic acid-GIC synthesized by an electrochemical process in which formic acid is used as electrolyte. Th.....
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