The invention, an electronic book selection and delivery system, is a new way to distribute books and other textual information to bookstores, libraries and consumers. The primary components of the system are a subsystem for placing text in a video signal format and a subsystem for receiving and selecting...http://www.google.de/patents/US7336788?utm_source=gb-gplus-sharePatent US7336788 - Electronic book secure communication with home subsystem
