US 7,526,260 B2
	Apparatus, methods and articles of manufacture for linear signal modification
Finbarr Joseph McGrath, Wesford, Mass. (US); and Pierce Joseph Nagle, Cork City (Ireland)
Assigned to M/A-Com Eurotec, B.V., Blackrock, County of Cork (Ireland); and M/A-Com, Inc., Lowell, Mass. (US)
Filed on Nov. 14, 2002, as Appl. No. 10/294,358.
Prior Publication US 2004/0097213 A1, May 20, 2004
Int. Cl. H04B 1/04 (2006.01); H03H 7/24 (2006.01)

U.S. Cl. 455—127.2  [455/574; 455/127.5; 330/295]

50 Claims

1. A method of signal modification comprising: generating a modification of an input signal, via a plurality of non-linear current sources regulated by a characteristic of said input signal, wherein the plurality of non-linear current sources are neither amplifiers nor current sources configured to function as voltage sources, and wherein said characteristic of said input signal comprises a magnitude characteristic over time, t, that is converted to a control signal having a plurality of signal portions, each of said signal portions for regulating at least one of the plurality of non-linear current sources, wherein said plurality of non-linear current sources is comprised of a first non-linear current source and second non-linear current source and wherein any regulated outputs of said first non-linear current source and said second non-linear current source are combined to comprise a linear output signal.