Patent ID: 7409011

Claim:
A pulse-shaping circuit that reduces a probability of an alignment in amplitude and phase of similar symbols in a plurality of input symbol streams including at least a first input symbol stream and a second input symbol stream, wherein the plurality of input symbol streams are eventually upconverted and combined to a composite data stream such that a reduction in the probability of the alignment reduces a probability of a large signal crest in the composite data stream, the pulse-shaping circuit comprising: a plurality of pulse-shaping filters configured to pulse-shape the plurality of input symbol streams to form a corresponding plurality of baseband streams; a plurality of multipliers configured to receive a plurality of input carrier streams and to upconvert the plurality of baseband streams to a plurality of upconverted streams; a summing circuit that is configured to combine the upconverted streams to the composite signal; and a delay circuit in at least a first data path, wherein the first data path is a path from an input symbol stream to the composite data stream, wherein the delay circuit is configured to delay data in the first data path by a fraction of a symbol period relative to data in a second data path to stagger symbols input symbols of the first data path relative to input symbols of the second data path.