Patent ID: 7804377

Claim:
A method for controlling phase transitions of a modulated signal during a phase transition interval of a modulating signal, the phase transition interval comprising a fractional portion of a bit period, the phase transition interval further comprising a first portion prior to a transition from a first value to a second value in the modulating signal and a second portion after the transition, the method comprising: selecting first and second phase trajectories to shape the phase transitions of the modulated signal during the first portion, the first and second phase trajectories operative to successively control the modulated signal during the first portion, the first and second phase trajectories representing different phase shaping parameters; selecting third and fourth phase trajectories to shape the phase transition of the modulated signal during the second portion, the third and fourth phase trajectories operative to successively control the modulated signal during the second portion, the third and fourth phase trajectories representing different phase shaping parameters; and transitioning the phase of the modulated signal during the first and second portions according to the first, second, third and fourth phase shaping parameters.