Gregory A Bradford

US Patent:

20030126572, Jul 3, 2003

Filed:

Dec 28, 2001

Appl. No.:

10/040735

Inventors:

Lyn Elzinga - Chandler AZ, US
Gregory Bradford - Chandler AZ, US

International Classification:

G06F009/45
G06F017/50

US Classification:

716/010000, 716/012000

Abstract:

Disclosed herein are swizzling techniques that may provide capacitive and inductive noise cancellation on a set of signal lines. Positive noise due to a capacitive coupling between attacker signal lines and near victim signal lines is, in part, cancelled by negative noise due to inductive coupling between the attacker signal lines and a far victim signal line. Repeatable swizzling patterns are set forth to transpose near victim signal lines and far victim signal lines in subsequent segments to facilitate the capacitive and inductive cancellation. The signal lines are optionally reordered by a final swizzling to restore the set's original ordering.

US Patent:

20040216073, Oct 28, 2004

Filed:

May 24, 2004

Appl. No.:

10/852982

Inventors:

Lyn Elzinga - Chandler AZ, US
Gregory Bradford - Chandler AZ, US

International Classification:

G06F017/50
H03K019/00

US Classification:

716/013000, 716/005000, 326/101000

Abstract:

Disclosed herein are swizzling techniques that may provide capacitive and inductive noise cancellation on a set of signal lines. Positive noise due to a capacitive coupling between attacker signal lines and near victim signal lines is, in part, cancelled by negative noise due to inductive coupling between the attacker signal lines and a far victim signal line. Repeatable swizzling patterns are set forth to transpose near victim signal lines and far victim signal lines in subsequent segments to facilitate the capacitive and inductive cancellation. The signal lines are optionally reordered by a final swizzling to restore the set's original ordering.