System for reducing noise in bus having plurality of first and second set of signals and a delay device for delaying propagation of second signals
US6138193A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 1998 |
| Grant date | Oct 24, 2000 |
| Priority date | — |
| Expiry date | Jun 23, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4068
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus supports both (1) a cost-effective graphics device (such as an AGP device) integrated onto the motherboard, and (2) an upgradable computer system with an add-in card slot for receiving a second graphics device (such as a second AGP device) on a card. The apparatus is connected to a bus that has a first set of signals which is sensitive to noise. The apparatus also has a first switch connected to a first device, the first switch being connected to the first set of signals on the bus. The apparatus has a second switch which is adapted to be connected to a second device. The second switch is also connected to the first set of signals on the bus. The apparatus also has a detector connected to the first and second switches to enable the first switch if the first device is selected and otherwise enable the second switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.