Personal computer component signal line isolation for an auxiliary powered component
US6256744A · kind A · utility
6Cited by
13References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1998 |
| Grant date | Jul 3, 2001 |
| Priority date | — |
| Expiry date | Sep 21, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/263
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a personal computer system utilizing both a main power supply and an auxiliary power supply, the input and output signal lines of auxiliary powered components are selectively isolated from components powered solely by the main power supply. Gating circuitry and buffer circuitry, controlled by various enable signals, are used to isolate the signal lines. External pull-down or pull-up resistors are no longer required, which frees up printed circuit board area for other components and conserves board space in the computer system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.