Patent ID: 6755343
Filing Date: 2004-06-29
Classification: H04W

Abstract:
An electronic card capable of changing communication functionality of a coupled electronic device comprising:a removable interface for being inserted into an electronic device and coupling to an interface bus, the removable interface having at least a card detection pin which is set at a first state or a second state based on the coupled electronic device; a functional module for providing a communication functionality via an access bus or a specific application bus based on whether the card detection pin is at the first state or the second state; a bridge for bridging and converting signals of the interface bus on the removable interface into signals of the access bus or the specific application bus, or bridging and converting the signals of the access bus or the specific application bus into the interface bus signals on the removable interface; and a multiplexer device for selecting signals of the access bus or signals of the specific application bus based on whether the card detection pin is at the first state or the second state for being switched to the interface bus.