Redundant analog to digital state machine employed to multiple states on a single line
US6809675B1 · kind B1 · utility
1Cited by
17References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2004 |
| Grant date | Oct 26, 2004 |
| Priority date | — |
| Expiry date | Mar 5, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/50
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A state machine is used to remove residual electric charge from a sense line and to sample the voltage of the sense line at multiple pre-determined times to determine the presence of a terminating capacitor and its value. Various values of capacitors identify discrete conditions. These discrete conditions may identify different types of plug-in cards or models of plug-in cards within a group type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.