MEANS FOR COMMUNICATING WITH USB SMART CARDS USING FULL-SPEED OR HIGH-SPEED TRANSFERS

摘要

The present invention allows the use of a low speed USB reader/connector (72, 84; 110) to be used for full speed and high-speed transmission by introducing an accurate clock element (80; 114) into the smart card (74; 108). In addition, the present invention eliminates the need of having a clock element (62) in any USB compatible reader/connector, making the reader/connector a much simpler device that can be manufactured in a lower cost.