Method and apparatus for suspending computation due to detection of electrostatic discharge
US5123102A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 19, 1988 |
| Grant date | Jun 16, 1992 |
| Priority date | — |
| Expiry date | Dec 19, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F15/0216
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Apparatus for detecting electrostatic discharge events that may affect operation of a calculator and for suspending the operation of an internal calculator chip before the discharge can corrupt the chip's operation. The apparatus includes an edge detector that detects the discharge event and generates a signal to timer circuitry. The timer circuitry in response generates a signal for a predetermined time to WAIT circuitry which suspends operation of the calculator chip before its calculations can be corrupted. The predetermined time is long enough for the electrostatic discharge to dissipate sufficiently so that it can no longer corrupt the calculations. After the predetermined time passes, the calculator chip resumes its operation to complete its calculations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.