Communications: electrical – Digital comparator systems
Patent
1988-09-28
1990-02-20
Malzahn, David H.
Communications: electrical
Digital comparator systems
G06F 704
Patent
active
049030051
ABSTRACT:
A multiple digit comparator checks the first and the second input data for a match. If the two input data match, the carry input data from the previous digit is outputted as the carry output data for the next digit; if the two input data do not match, then a no match signal is outputted as the carry output data for the next digit. Next, if the carry input data and the carry output data do not match then a change point signal is outputted. When this change point signal is outputted, the first and the second input data are outputted. This facilitates the design of a more regular comparator circuit layout and of a faster comparator circuit.
REFERENCES:
patent: 4450432 (1984-05-01), Schmidtpott
patent: 4694274 (1987-09-01), Shimada et al.
patent: 4767949 (1988-08-01), Mayweather, III
patent: 4797650 (1989-01-01), Pickett
Sakashita Narumi
Shimazu Yukihiko
Malzahn David H.
Mitsubishi Denki & Kabushiki Kaisha
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