A long time optical recording and repeated reproduction of multimedia information is possible. Using a printer system or printing process system, on a recording medium such as a sheet, the so-called multimedia information in the form of dot codes (36) together with images (32) and characters (34) is...http://www.google.com.tw/patents/US5896403?utm_source=gb-gplus-share專利 US5896403 - Dot code and information recording/reproducing system for recording/reproducing the same
Dot code and information recording/reproducing system for recording ...