USB key apparatus for interacting with a USB host via a USB port
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United States of America Patent
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Jul 13, 2004
Issued Date -
N/A
app pub date -
Apr 22, 2002
filing date -
Nov 10, 1998
priority date (Note) -
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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.
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