Patent ID: 7278017

Claim:
Method for secure wireless transmission of information from a digital pen to a receiving device, comprising: obtaining, in the digital pen, a message in the form of a plurality of absolute positions recorded from an absolute position coding pattern on a substrate; obtaining, in the digital pen, at least one absolute position recorded from an absolute position coding pattern on a secure note; sending said at least one absolute position recorded from the secure note to a database device, in which said at least one absolute position is associated with an address of the receiving device and an encryption key of the receiving device; receiving, in the digital pen, said address and said encryption key of said receiving device, from the database device; encrypting the message to be transmitted using said encryption key received from the database device; obtaining a transmission channel from the digital pen to the receiving device; and transmitting the encrypted message to the receiving device, wherein the information is decrypted at the receiving device.