System and method for comparing values from target systems
US6578058B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 6, 1999 |
| Grant date | Jun 10, 2003 |
| Priority date | — |
| Expiry date | Oct 6, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/25
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method are provided to evaluate logical values from target systems. The system includes a configuration in a field programmable gate array for performing a doubly bounded comparison. The configuration advantageously allows the user to determine when values are greater than or less than a predefined value while employing a reduced number of lookup tables in the field programmable gate array. The configuration includes an input to receive a parallel logical value. The system also includes a number of equality lookup tables configured to detect an equality between a portion of the logical value and a portion of a predefined value. The system also includes a number of inequality lookup tables configured to determine a type of an inequality between the portion of the logical value and the portion of the predefined value. The predefined value is preprogrammed and downloaded to the equality lookup tables at startup. The inequality lookup tables each include an output that is applied to an OR function, thereby producing an output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.