Patent · US Expired

Floating point digital differential analyzer

US4563749A · kind A · utility

1Cited by
6References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 14, 1982
Grant dateJan 7, 1986
Priority date
Expiry dateDec 14, 2002

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F7/64
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

In a floating point digital differential analyzer, multiplication and division of constants are carried out by an adder which truncates a summation SDY.sub.i of l secondary increments calculated by ##EQU1## into a third increment having an n-bit mantissa including a sign bit, and an integrator for carrying out an integration of EQU R.sub.i :=R.sub.i-1 +Y.sub.i .multidot..DELTA.X.sub.i -.DELTA.Z.sub.i irrespective of a value of a first increment .DELTA.X.sub.i to generate .DELTA.Z.sub.i from R.sub.i.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.