Multi-host USB device
US7627708B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2008 |
| Grant date | Dec 1, 2009 |
| Priority date | — |
| Expiry date | Dec 22, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/385
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A USB device may be simultaneously configured and accessed by two or more USB hosts. The USB device may include separate upstream ports and buffers for each host, and a multi-host capable device controller configured to respond to simultaneous USB requests received from more than one host. The USB device may maintain a dedicated address, configuration, and response information for each host. The USB device may include a shared USB function block, and a multi-host controller configured to establish concurrent respective USB connections between the shared USB function block and two or more USB hosts, to allow the two or more USB hosts to simultaneously configure the USB device for the shared USB function. The multi-host controller may be configured to receive and respond to simultaneous respective USB access requests for the shared USB function sent by the two or more USB hosts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.