Method and device for comparing binary data words

Details Method and device for comparing binary data words Method and device for comparing binary data words

2008-07-01

2008-07-01

Mai, Tan V. (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

C340S146200

Reexamination Certificate

active

07395303

ABSTRACT:
A system and method for comparing binary data words are provided, which method includes splitting a first and a second data word (A, B) to be compared to one another into at least two subwords, one having high-order bits (hA, hB) and the other having low-order bits (nA, nB), and separately comparing each pair of the corresponding two subwords (hA, hB; nA, nB) in a separate comparing device. The intermediate comparison results of the comparing devices are gated in a logic device, e.g., an AND gate, to yield an overall result as a function of a control signal which is applied to a correction device, which is connected between at least one of the comparing devices and the logic device.

REFERENCES:
patent: 4163211 (1979-07-01), Miura
patent: 4760374 (1988-07-01), Moller
patent: 6046669 (2000-04-01), Giamei et al.
patent: 6216147 (2001-04-01), Petro et al.
patent: 2002/0083108 (2002-06-01), Tierno
patent: 2003/0023654 (2003-01-01), Pascucci
patent: 2003/0033342 (2003-02-01), Griesemer

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