Data tables that are required for the proper processing of font glyphs are automatically synthesized if they do not form part of an original font definition. The synthesized tables are stored in an annex file that is associated with the font, rather than being incorporated into the font definition. As...http://www.google.ca/patents/US7692656?utm_source=gb-gplus-sharePatent US7692656 - Automatic synthesis of font tables for character layout
