Patent ID: 6752321
Filing Date: 2004-06-22
Classification: G06K

Abstract:
A smart card comprising:a card body; and an integrated circuit carried by the card body and comprising a microprocessor for communicating with a host, an input/output terminal, and an LED activation logic circuit and driver counter operatively connected to said microprocessor and input/output terminal, and operative for driving at least one multi-color light emitting diode (LED) operatively connected to said input/output terminal and indicative of smart card transactions between the smart card and a USB port of the host, wherein one of at least said LED activation logic circuit and driver counter includes microprocessor controlled registers and/or counters, and operative for modulating the multi-color LED based on operational attributes of the smart card and/or transactions between the smart card and USB port of the host and allowing additional context sensitive information to be conveyed by the multi-color LED.