A device for capturing rendered text is described. The device incorporates one or more visual sensors that receive visual information as a part of capturing rendered text. The visual sensors are collectively capable of capturing both text that is permanently printed on a page, and text that is displayed...http://www.google.com.hk/patents/US20060098899?utm_source=gb-gplus-share專利 US20060098899 - Handheld device for capturing text from both a document printed on paper and a document displayed on a dynamic display device
