Detection and accommodation of hot-plug conditions
US7782126B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2008 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Mar 21, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D89/611
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A mechanism is provided for a one card to filter false signals due to a another card being hot-plugged. A discriminator circuit in the card receives a low-state signal via an input and, responsive to receiving the low-state signal, the discriminator circuit compares the low-state signal to a static signal. Responsive to the low-state signal being greater than the static signal, the discriminator circuit outputs a high-voltage signal. The high-voltage signal output by the discriminator circuit indicates that the low-state signal is a false low signal. Responsive to the low-state signal being less than or equal to the static signal, the discriminator circuit outputs a low-voltage signal. The low-voltage signal output by the discriminator circuit indicates that the low-state signal is a valid low signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.