System and method for power control in a universal serial bus
US5675813A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 26, 1995 |
| Grant date | Oct 7, 1997 |
| Priority date | — |
| Expiry date | Oct 26, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/325
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A bus powered hub having a switch to control power distribution in a universal serial bus. A single switch is used to control power distribution to a number of peripherals connected to the bus powered hub. When the bus powered hub is initialized, the switch is activated thus providing power to the peripheral devices coupled to the bus powered hub. The system subsequently queries the peripheral devices to determine if an illegal configuration exists. If an illegal configuration exists, the system generates an error message to the user indicating the nature of the illegal configuration. If no illegal configuration exists, the system initializes the various peripheral devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.