Automated control system for programming PLDs
US5784577A · kind A · utility
19Cited by
7References
1Claims
0Family size
Inventors
Key dates
| Filing date | Aug 5, 1996 |
| Grant date | Jul 21, 1998 |
| Priority date | — |
| Expiry date | Aug 5, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2207/7219
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In an automated control system, a user must be authorized to modify the configuration data of a programmable logic device (PLD). After authorization is confirmed, the PLD is unlocked. Then, the configuration data of the PLD and the contents of a version control register are read back and archived, thereby providing a security back-up should the user need to retrieve the original data. After readback, the version control number is automatically incremented. This incremented version control number and the modified configuration data provided by the user are downloaded to the PLD. Finally, the PLD is locked.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.