US Patent 7783109 System for interactive note-taking

A system for interactive note-taking is provided having a receiver for receiving interaction data from a note-taking device used to interact with a note-taking form having note-taking information and a plurality of coded tags printed thereon, and a processor for recording or retrieving the note-taking by identifying, from the received interaction data, at least one parameter relating to the note-taking. Each tag encodes data on an identity of the form and a location of that tag on the form. The note-taking device senses the tags and generates the interaction data with data on the sensed form identity and a position of the note-taking device relative to the sensed tags.