Method and apparatus for supplementing significant portions of a document selected without document image decoding with retrieved information
CA 2078423 C · Owner: Xerox Corporation · Inventors: Bagley, Steven C.; Huttenlocher, Daniel P.; Brown, John Seely
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for applying morphological image criteria that identify image units in an undecoded document image having significant information content and, for retrieving related data that supplements the document either from elsewhere within the document or a source external to the document. The retrieved data can result from character code, recognition or template matching of the identified significant image units or the retrieved, data can result directly from an analysis of the morphological image characteristics of the identified significant image units. A reading machine can allow a user to browse and select documents or segments thereof and to, obtain interactive retrieval …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed September 16, 1992 and granted January 14, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 16, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 16, 2014.
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