| http://www.w3.org/ns/prov#value | - for down-converting and electromagnetic signal, and transforms for sameUS7773688Dec 20, 2004Aug 10, 2010Parkervision, Inc.Method, system, and apparatus for balanced frequency up-conversion, including circuitry to directly couple the outputs of multiple transistorsUS7817878Feb 13, 2009Oct 19, 2010Hand Held Products, Inc.Imaging apparatus having plurality of operating statesUS7822401 *Oct 12, 2004O
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