A system for electronic distribution of books and other media. The system includes a number of self-service stations from which a customer can select and order items and download the ordered item to a portable reader a or smart card. The system may include cryptoprocessing capabilities in order to prevent...http://www.google.com.tw/patents/US7124100?utm_source=gb-gplus-share專利 US7124100 - Apparatus, system and method for electronic book distribution
