US Patent 7187224 Adaptive delay of timing control signals

Embodiments of the present invention relate to a circuit that varies the delay time of a clock signal in response to a frequency of the clock signal. The circuit may include a sensor and a delay circuit. The sensor may output a determination of the frequency of the clock signal. The delay time of the delay circuit may be responsive to the determination of a frequency of the clock signal. Accordingly, when the frequency of a clock signal varies, a delay of that clock signal can be varied to accommodate for the change in frequency.