USB compound device operates a plurality of devices by using the same USB logic circuit and the method for implementation thereof
US6862643B2 · kind B2 · utility
22Cited by
11References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2002 |
| Grant date | Mar 1, 2005 |
| Priority date | — |
| Expiry date | Apr 15, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/023
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A Universal Serial Bus (USB) compound device and the method for implementation thereof are disclosed. The USB compound device does not include an embedded hub but simulates a hub by a circuit or firmware. Therefore, a set of independent function devices are able to connect to a USB bus via the same set of USB logic, and the production cost can be reduced without affecting the function of the device and the facility of expansion and plug-and-play function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.