Method and apparatus for achieving higher frequencies of exactly

Details Method and apparatus for achieving higher frequencies of exactly Method and apparatus for achieving higher frequencies of exactly

1998-05-08

2000-10-17

Malzahn, David H.

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

708497, G06F 752, G06F 7552

Patent

active

061345741

ABSTRACT:
A multiplier configured to obtain higher frequencies of exactly rounded results by adding an adjustment constant to intermediate products generated during iterative multiplication operations is disclosed. One such iterative multiplication operation is the Newton-Raphson iteration, which may be utilized by the multiplier to perform reciprocal calculations and reciprocal square root calculations. For each iteration, the results converge toward an infinitely precise result. To improve the frequency of the exactly rounded result, the results of the iterative calculations may be studied for a large number of differing input operands to determine the best suited value for the adjustment constant. The multiplier may also be configured to perform scalar and packed vector multiplication using the same hardware.

REFERENCES:
patent: 3633018 (1972-01-01), Ling
patent: 3777132 (1973-12-01), Bennett, Jr.
patent: 4163287 (1979-07-01), Munter et al.
patent: 4573136 (1986-02-01), Rossiter
patent: 4607343 (1986-08-01), Chevillat et al.
patent: 4849923 (1989-07-01), Samudrala et al.
patent: 5157624 (1992-10-01), Hesson
patent: 5206823 (1993-04-01), Hesson
patent: 5343416 (1994-08-01), Eisig et al.
patent: 5369607 (1994-11-01), Okamoto
patent: 5606677 (1997-02-01), Balmer et al.
patent: 5633818 (1997-05-01), Taniguchi
patent: 5729481 (1998-03-01), Schwarz
patent: 5737255 (1998-04-01), Schwarz
patent: 5737257 (1998-04-01), Chen et al.
patent: 5841684 (1998-11-01), Dockser

Affiliated with

Also associated with

Rating

Method and apparatus for achieving higher frequencies of exactly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for achieving higher frequencies of exactly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for achieving higher frequencies of exactly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-478936