Boots – shoes – and leggings
Patent
1989-10-30
1991-08-20
Malzahn, David H.
Boots, shoes, and leggings
G06F 7556
Patent
active
050419994
ABSTRACT:
In a log.sub.e (1+x/y) arithmetic unit by use of the STL algorithm, in order to reduce the arithmetic time, a pseudo division is at first effected by use of w=(2X.sub.k -Y.sub.k) for k, initial values being mantissas X and Y of given x=2.sup.-1 .multidot.X and y=2.sup.-j .multidot.Y to produce X.sub.m and Y.sub.m, and thereafter, using X.sub.m and Y.sub.m as initial values a pseudo multiplication is effected by use of X.sub.k+1 =(X.sub.k +.GAMMA..sub.k) or X.sub.k+1 =X.sub.k /2 for k to obtain a mantissa of log.sub.e (1+x/y). The unit comprises coefficient generator for producing k and .GAMMA..sub.k, and first and second adder/subtractors accompanying with first and second registers for executing the pseudo division and the pseudo multiplication according to k and .GAMMA..sub.k from the coefficient generator.
REFERENCES:
patent: 4089060 (1978-05-01), Mitchell
patent: 4225933 (1980-09-01), Monden
Malzahn David H.
NEC Corporation
LandOfFree
Logarithmic function arithmetic unit including means for separat does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Logarithmic function arithmetic unit including means for separat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Logarithmic function arithmetic unit including means for separat will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1013083