Patent ID: 7825741
Filing Date: 2010-11-02
Classification: G06F,H03F,H03G

Abstract:
1. A method of generating a differential output from an input signal, comprising the steps of: generating a first set of n signals, n being an integer greater than or equal to 3, by generating a signal for each integer i such that 0≦i≦(n−1), each signal within the first set of signals having the same frequency and approximately equal amplitude and a phase equal to (360/n)i degrees; inputting each of the first set of n signals to a gate terminal of a corresponding one of a first set of n transistors, each of the transistors within the first set of transistors having a source terminal electrically connected to a common voltage drain and each of the transistors within the first set of transistors having a drain terminal electrically connected to a first coupling, the first coupling being electrically connected to a common voltage source; generating a second set of n signals by generating a signal for each integer j such that 0≦j≦(n−1), each signal within the second set of signals having the same frequency and approximately equal amplitude and a phase equal to (360/n)j+(360/2n) degrees; inputting each of the second set of n signals to a gate terminal of a corresponding one of a second set of n transistors, each of the transistors within the second set of transistors having a source terminal electrically connected to the common voltage drain and each of the transistors within the second set of transistors having a drain terminal electrically connected to a second coupling, the second coupling being electrically connected to the common voltage source; such that the respective differential output signals at the first and second couplings each have a frequency equal to the frequency of the input signal multiplied by n.