Floating point numeric data processor
US4777613A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 1986 |
| Grant date | Oct 11, 1988 |
| Priority date | — |
| Expiry date | Apr 1, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F7/49947
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A numeric data processor having an execution unit adapted to efficiently execute the complete set of floating point operations recommended by the IEEE Standard for Binary Floating-Point Arithmetic, ANSI/IEEE Std. 754-1985, in full compliance therewith. The numeric data processor is also adapted to evaluate a large set of transcendental functions, including trigonometric, logarithmic and exponential, consistent with the IEEE Standard, without requiring a "software envelope." In the processor, special hybrid forms of Volder's CORDIC digital approximator and Meggitt's digital approximator are implemented in a manner so as to require minimal additions or modifications to the form of the execution unit which is otherwise required just to execute the standard floating point operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.