Method for guaranteeing a device minimun bandwidth on a usb bus
US6810432B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2000 |
| Grant date | Oct 26, 2004 |
| Priority date | — |
| Expiry date | Apr 3, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/102
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of guaranteeing a minimum sustained data transfer rate to a chosen device connected to a USB bus. A set of filter drivers are inserted in the driver stacks for at least two USB devices. These filter drivers are controlled by a filter driver controller that provides and receives information from the filter drivers. When a particular device needs a minimum sustained bandwidth for a transaction, the filter driver for that device notifies the filter driver controller. The filter driver controller then instructs the filter drivers for at least one other device to start interfering with USB transactions. This interference prevents the interfered with devices from using any of the USB bus bandwidth thereby providing a minimum sustained bandwidth to the non-interfered with device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.