Method and apparatus for switching among a plurality of universal serial bus host devices
US6600739B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1999 |
| Grant date | Jul 29, 2003 |
| Priority date | — |
| Expiry date | Jun 7, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4022
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A switching device and method for selecting among a plurality of hosts on a bus, such as a Universal Serial Bus (USB). The switching device includes a first hub to be coupled to first host controller and a second hub to be coupled to second host controller. A first selection device is to be coupled to a first peripheral device and the first and second hub devices. The first selection device is to selectively couple the first peripheral device to one of the first and second host devices in response to a selection signal. A second selection device is to be coupled to a second peripheral device and the first and second hub devices. The second selection device is to selectively couple the second peripheral device to one of the first and second host controllers in response to the selection signal. The selection signal is generated in response to one of the host controllers. During the switching process among the host controllers and peripheral devices, a cable disconnect and reconnect between the host controllers and peripheral devices is emulated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.