USB key apparatus for interacting with a USB host via a USB port
US6763399B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2002 |
| Grant date | Jul 13, 2004 |
| Priority date | — |
| Expiry date | May 13, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/79
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A smart card—host system that operates without the intermediation of a smart card reader. The smart card—host system comprises a host, which has a USB interface, and a portable device, which provides smart card function(s). The portable device has a smart card chip for performing the smart card function(s); a USB interface for connecting the portable device with the host via USB protocol; and a microprocessor for controlling the transfer of data between the USB interface and the smart card chip, for converting data from a USB format to the format of the smart card chip and for converting data from the format of the smart card chip to a USB format.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.