Electronic book security and copyright protection system

CAFC
  • US 7,298,851 B1
  • Filed: 09/21/1999
  • Issued: 11/20/2007
  • Est. Priority Date: 12/09/1992
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method for encrypting, sending and receiving electronic books upon demand, comprising:

  • creating a list of titles of available electronic books;

    transmitting the list of titles of available electronic books;

    selecting a title from the transmitted list of titles;

    communicating the selected title to an electronic book source;

    supplying a selected electronic book corresponding to the selected title to be encrypted;

    supplying an encryption key;

    encrypting the selected electronic book using the encryption key;

    supplying the encrypted selected electronic book;

    supplying a decryption key; and

    decrypting the encrypted selected electronic book using the decryption key.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×