| http://www.w3.org/ns/prov#value | - c 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 transistorsUS7822401Oct 12, 2004Oct 26, 2010Parkervision, Inc.Apparatus and method for down-converting electromagnetic signals by controlled charging and discharging of a capacitorUS782
|