Generic universal serial bus device operable at low and full speed and adapted for use in a smart card device
US7685328B2 · kind B2 · utility
5Cited by
13References
11Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Sep 9, 2004 |
| Grant date | Mar 23, 2010 |
| Priority date | — |
| Expiry date | Jul 11, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4068
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A USB device, integrated circuit, smart card and method are disclosed. A USB transceiver is connected to a data interface and operable at a respective low speed and full speed configuration. A processor as a USB device controller is operatively connected to the low speed USB transceiver and full speed USB transceiver and operable for transmitting a different device descriptor to a USB host for performing an enumeration depending on whether a low speed or high speed operation is chosen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.