System for interpeting digital ink

Abstract

A system for interpreting digital ink is provided having a pen for imaging tags printed on a page to produce one or more types digital ink, an input for input of the digital ink, memory storing a page description having an identifier, a database of digital ink types, and searching algorithms specialized for searching the database, and a processor for interpreting the input digital ink using the stored description and algorithms. Each tag encodes its location on the page and the page identifier. The digital ink includes data on the page identifier and the pen motion relative to the imaged tags. The processor determines the input digital ink types, selects the algorithms specialized to the determined types, processes the input digital ink with the selected algorithms, searches the database for matches to the processed digital ink using the selected algorithms, and interprets the matches relative to the stored description.

1 . A system for interpreting digital ink, the system comprising:
 an imaging pen for imaging tags printed in infrared ink on a page to produce digital ink of one or more digital ink types, each tag encoding the location of that tag on the page and a page identifier, the digital ink being produced to include data on the page identifier and the motion of the pen relative to the imaged tags;   an input for input of the digital ink from the imaging pen;   memory storing a description of the page with the page identifier, a database of a plurality of digital ink types, and a plurality of searching algorithms specialized for searching the stored database for respective ones of the plurality of digital ink types; and   a processor for interpreting the input digital ink using the stored description and searching algorithms, the processor configured to:
 determine the digital ink types of the input digital ink; 
 select the algorithms which are specialized to the determined digital ink types of the input digital ink; 
 process the input digital ink in accordance with the selected algorithms; 
 search the database for matches to the processed digital ink using the selected algorithms; and 
 interpreting the matches relative to the stored description. 
   
     
     
         2 . A system as claimed in  claim 1 , wherein the digital ink is produced by the imaging pen to include data on labels indicating the one or more digital ink types of the digital ink and the processor determines the digital ink types of the input digital ink using the label data. 
     
     
         3 . A system as claimed in  claim 1 , wherein the digital ink is produced by the imaging pen to include attribute data on one or more of a document label, a document setting, a document field label and a document field attribute, and the processor determines the digital ink types of the input digital ink using the attribute data. 
     
     
         4 . A system as claimed in  claim 1 , wherein the processor determines the digital ink types of the input digital ink based on user input to the input.