Method and arrangement for minimizing skew

Details Method and arrangement for minimizing skew Method and arrangement for minimizing skew

1993-12-21

1995-11-21

Chin, Stephen

Pulse or digital communications

Synchronizers

Network synchronizing more than two stations

375354, 375371, 371 1, 327415, 327292, H04L 700

Patent

active

054694779

ABSTRACT:
A method and an arrangement minimizes skew in digital synchronous systems. The arrangement includes N number of driver circuits, each of which has a P number of buffer units, of which each has an input and an output. Each driver circuit has a delay of .delta..sub.1, .delta..sub.2, .delta..sub.3, .delta..sub.4 . . . .delta..sub.N. Of these buffer units, N-1 buffer units are reserved while the inputs of the remaining buffer units P-(N-1) are connected mutually in parallel. The reserved buffer units are used as follows. A signal deriving from a signal source is applied to an input of a first buffer unit in each of the N-number of driver circuits, where the signal is subjected to a delay. The one-time delayed signal from a driver circuit is then delayed once, and only once, in the reserved buffer units of each of the remaining driver circuits. This procedure is repeated for each of the once-delayed signals on the outputs of the first buffer unit in each of the remaining N-1 driver circuits. Output signals which are mutually delayed by a time delay of .delta..sub.1 +.delta..sub.2 +.delta..sub.3 +.delta..sub.4 . . .+.delta..sub.N appear on the outputs of the buffer units in each of the driver circuits, the inputs of these buffer units being connected in parallel.

REFERENCES:
patent: 4782253 (1988-11-01), Shoji
patent: 4833695 (1989-05-01), Greub
patent: 4860322 (1989-08-01), Lloyd
patent: 5163068 (1992-11-01), El-Amawy

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