Patent Number: 6,480,703

Title: Common carrier, multiple output RF upconverter

Abstract: The invention provides a mechanism for implementing a common carrier,multiple output RF upconverter. The preferred embodiment of the inventioncomprises a method and apparatus for distributing the LO signals for boththe first and second LO functions to several upconverter sectionssimultaneously. This technique eliminates the frequency synthesizers andVCOs typically required for each individual upconverter section, therebysubstantially reducing the board space and component count required toperform this function. By providing a distributed LO, only two LOsynthesizers and VCO's are required per board, where a board might supportanywhere from two to twelve or more upconverters.

Inventors: Calderone; Theodore (San Carlos, CA), Foster; Mark J. (Palo Alto, CA)


International Classification: G10L 15/28 (20060101); G10L 15/00 (20060101); H03D 7/16 (20060101); H03D 7/00 (20060101); H04B 1/04 (20060101); H04B 001/02 ()

Expiration Date: 11/12014