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HP licenses engineers' 'Blue Noise Mask'A halftoning technology developed by University electrical engineers has been licensed to Hewlett-Packard Co., the world's largest maker of printers for computer use. The licensing comes as part of a settlement agreed on last month by HP and Research Corporation Technologies of Tucson, Ariz., which had filed a patent infringement lawsuit against HP. No other terms of the settlement were disclosed.The technology is the subject of six U.S. patents and several international patents that have been issued. The patents were filed on behalf of the University by RCT, a company that helps universities commercialize technology developed in their laboratories. In halftoning technology, "blue noise" refers to a certain type of pattern of black-and-white dots that has visually pleasing properties. The "Blue Noise Mask" invented by University researchers nearly a decade ago makes possible the rapid creation of high-quality halftones. The inventors are Kevin Parker, dean of the School of Engineering and Applied Sciences, and former graduate student Theophano Mitsa, now a scientist at a Boston-based medical equipment company.
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