AVERAGE TIME EXTRACTION BY MULTIPLICATION

摘要

A method involving: in a signal distribution system including a first line and a second line both of which extend from the first end to the second end of the signal distribution system, introducing a first global clock signal into the first line so that the first global clock signal propagates from the first end to the second end of the line; introducing a second sinusoidal global clock signal into the second line so that the second global clock signal propagates from the second end to the first end of the line; and in each of a plurality of local clocking regions located along the signal distribution system, detecting the first and second global clock signals; multiplying the detected first and second clock signal for that local clocking region together to generate a combined signal, and deriving a local clock signal for that local clocking region from the combined signal.