Patent ID: 7062176

Claim:
A phase-shift compensator apparatus comprising: two or more phase-shift compensating devices, wherein the two or more phase-shift compensating devices are provided along the length L of a transmission system and provide a compensating phase shift according to the following table Normalized Phase Compensators Location Shift Factor 1 L −1/2 2 L/2, L −1/2, −1/4 3 L/3, 2L/3, L −1/3, −1/3, −1/6 . . . . . . . . . N L/N, 2L/N, . . . (N − 1)L/N, −1/N, −1/N, . . . −1/N, L −1/2N wherein the normalized phase shift factor is multiplied by the peak pulse phase shift after transmission through the transmission system to determine an optimum compensating phase shift.