Re: more patents on interval arithmetic implementations
Arnold Neumaier schrieb:
more patents, not yet mentioned in my previous two mails:
Several old patents, two by Kulisch, one by Miranker, and one by Rump,
are related to items 2 and 3 (accurate sum and inner product) in
Section 5.1 of the Vienna proposal:
- Circuitry for generating sums, especially scalar products
http://www.patentstorm.us/patents/4866653/fulltext.html
- Circuitry for generating scalar products and sums of floating point
numbers with maximum accuracy
http://www.patentstorm.us/patents/4622650/fulltext.html
- Systolic super summation device
http://www.patentstorm.us/patents/4751665/fulltext.html
- Method and circuit arrangement for adding floating point numbers
http://www.patentstorm.us/patents/4866651/fulltext.html
There are, however, recent alternative (public and better)
implementation techniques by
Ogita, Rump, and Oishhi
Accurate sum and dot product
http://www.ti3.tu-harburg.de/paper/rump/OgRuOi05.pdf
Arnold Neumaier