Boots – shoes – and leggings
Patent
1981-07-14
1984-03-27
Malzahn, David H.
Boots, shoes, and leggings
G06F 750
Patent
active
044398352
ABSTRACT:
A logical AND and logical OR gate are utilized in conjunction with two signals forming bits to be added for ascertaining the value of generate and propagate signals. The generate signal is passed to the output whenever the carry input is a logic zero and the propagate signal is supplied to the output whenever the carry signal is a logic one. This simplification of the approach to generating ripple carry signals substantially reduces the number of transistor to a value of about one-half that utilized in the prior art.
REFERENCES:
patent: 3454751 (1969-07-01), Brastins et al.
patent: 3465133 (1969-09-01), Booher
patent: 3767906 (1973-10-01), Pryor
patent: 3843876 (1974-10-01), Fette et al.
patent: 3932734 (1976-01-01), Parsons
patent: 3970833 (1976-07-01), Gehweiler
patent: 4031379 (1977-06-01), Schwartz
patent: 4052604 (1977-10-01), Maitland et al.
patent: 4152775 (1979-05-01), Schwartz
patent: 4323982 (1982-04-01), Erchrodt et al.
patent: 4363107 (1982-12-01), Ohhashi et al.
Wade, "Ripple Adder Carry Logic" IBM Tech. Disclosure Bulletin vol. 10, No. 11, Apr. 1969, pp. 1638-1639.
Weller, "A High-Speed Carry Circuit for Binary Adders" IEEE Trans. on Computers vol. C-18, No. 8, Aug. 1969, pp. 728-732.
Lamdam et al., "A Circuit for High-Speed Carry Propagation in LSI-FET Technology" The Radio & Electronic Engineer vol. 46, No. 7, pp. 337-341 Jul. 1976.
Hong, "Ripple Carry Hardware with One-Device Delay Per Stage" IBM Tech. Disclosure Bulletin vol. 19, No. 11, Apr. 1977, pp. 4295-4296.
Best David W.
Russell Jeffrey D.
Greenberg Howard R.
Hamann H. Fredrick
Lutz Bruce C.
Malzahn David H.
Rockwell International Corporation
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