Unsigned integer comparator

Details Unsigned integer comparator Unsigned integer comparator

1997-11-21

2000-03-28

Vu, Huy D.

Multiplex communications

Diagnostic testing

Using oam cells

3401462, H04L 2900

Patent

active

060440635

ABSTRACT:
An unsigned integer comparator for use when comparing an n-bit received signal (such as an address) with an n-bit known signal ("comparison address"). The first stage of the comparator may be configured in advance, since the values of both a "comparison signal" and a "select signal" are known a priori. When the "current signal" arrives, the bits of this signal are then compared against the associated bits of the comparison signal. Subsequent stages of the comparator perform comparison operations of increasing length, dependent upon the outcome of the previous stage (i.e., a first set of 2-bit comparisons, then 4-bit, 8-bit, etc.), until the entire n-bit integers are ultimately compared and a final output is generated.

REFERENCES:
patent: 3938087 (1976-02-01), Louie
patent: 5167033 (1992-11-01), Bryant et al.
patent: 5220306 (1993-06-01), Shimizu
patent: 5764548 (1998-06-01), Keith et al.

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