High speed binary comparator

Details High speed binary comparator High speed binary comparator

1974-05-31

1976-02-10

Morrison, Malcolm A.

Communications: electrical

Digital comparator systems

235177, G06F 702

Patent

active

039380874

ABSTRACT:
A comparator circuit compares the relative magnitudes of two binary numbers. Each of the binary numbers is fed in parallel through a plurality of two-bit comparator modules corresponding to the number of two-bit pairs in the largest binary number. The binary numbers are compared order by order and simultaneously to determine one or more of five relationships between the numbers. For binary numbers greater than two bits in length, the two-bit comparator module is utilized as the basic building block and an additional level of logic circuitry is required in order to obtain an output identifying one of the relationships. Since the two-bit modules may be used interchangeably and since the relative magnitude of any two-bit grouping is generated simultaneously, the comparator circuit provides for a fast and efficient identification of relationships between two binary numbers.

REFERENCES:
patent: 3091392 (1963-05-01), Arya
patent: 3241114 (1966-03-01), Zieper et al.
patent: 3320587 (1967-05-01), Becker
patent: 3390378 (1968-06-01), Dryden
patent: 3660823 (1972-05-01), Recks

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