Automatic signal delay adjustment method

Details Automatic signal delay adjustment method Automatic signal delay adjustment method

1984-08-29

1987-01-13

Fleming, Michael R.

Excavating

328 55, H03K 306, G01R 1512

Patent

active

046370188

ABSTRACT:
A method for automatically adjusting the propagation time delay of an electrical circuit, such as an integrated circuit chip. In a preferred embodiment, the method is employed to de-skew the clock outputs provided by a plurality of clock distribution chips having different signal propagation times. In a preferred implementation of the method, feedback circuitry including a multi-tapped delay line and an accurate constant delay are employed in conjunction with a phase comparator for automatically adjusting the propagation delay of each chip to provide substantially the same constant delay relative to a main system clock for the clock outputs provided by the clock distribution chips.

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