Patent ID: 7971088
Filing Date: 2011-06-28
Classification: G06F,H03K

Abstract:
1. A clock skew controller adapted to adjust a skew between a first clock, which is input to a first clock mesh, and a second clock mesh input to a second clock mesh, the clock skew controller comprising: a pulse generator configured to output a pulse signal corresponding to a delay time between a first output clock output from the first clock mesh and a second output clock output from the second clock mesh; a pulse width detector operatively connected to the pulse generator and configured to generate a digital signal corresponding to a pulse width of the pulse signal; a phase detector configured to activate a detection signal when the first output clock is earlier than the second output clock in phase; a register circuit configured to store the digital signal in sync with the detection signal; a delay control signal generator configured to output a delay control signal in sync with the detection signal; and a clock delay adjuster operatively connected to the delay control signal generator and configured to delay the first clock by a time corresponding to the delay control signal.