Adder/substractor for variable length numbers
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United States of America Patent
Stats
-
Nov 17, 1987
Grant Date -
N/A
app pub date -
Mar 4, 1985
filing date -
Mar 4, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An adder/subtractor wherein N/2 two bit adders are connected to allow the addition of numbers having N bits, each one of the two bit adders having associated control circuitry adapted: (a) to cause each two bit adder either to add applied bits directly or to add one applied bit and the 'two's complement' of the other bit; and (b) to electrically separate any selected ones of the two bit adders from the others.
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