Smart card virtual hub
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 26, 2008
Grant Date -
May 11, 2006
app pub date -
Dec 19, 2005
filing date -
Jun 30, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A smart card virtual hub combines an ISO7816 compliant smart card reader interface with a USB hub that provides one or more attachment points for connection of devices to the USB bus, thereby interfacing such devices to the host computer. The hub in the presently preferred embodiment of the invention provides one port to which one USB functional device, such as a keyboard, may be attached. The attached keyboard shares a common USB bus bandwidth with the internal embedded smart card reader through a host-scheduled, token-based communication protocol that is handled by the USB driver and the device driver.
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