Richard A. Daniel - Escondido CA Stuart C. Rowson - Escondido CA James E. Barnhart - St. Peters MO Woonsuk Paek - Fremont CA
Assignee:
NCR Corporation - Dayton OH
International Classification:
G06F 104 G06F 112 H03K 5106 H04L 7033
US Classification:
364900
Abstract:
A computer system clock generator generates several system clock signals which are in a tuned state at desired locations, thereby offsetting the effects of varying propagation delays among the system clock signals. A shift register ring has one of its taps selectively connected to its data input so that a series of logic high level and logic low level data is advanced through the shifting stages. A tap selector for each desired output signal logically combines the signals output from the appropriate taps to produce output clock signals having desired leading and trailing edges.