Abstract
AbstractThis paper proposes a system for information storage and delivery. It is based on the new concept where the information corresponding to 10 still pictures and approximately 3 min of sound are encoded digitally and printed on a postcard as a dot pattern to be read and restored. The system is called an optical postcard system. In this study, after the basic technologies for the realization of this system are investigated, the printed optical postcard and the reproducing system are constructed experimentally. As a result of there production experiment, the information recorded on the postcard is read and the original picture and sound signal are played back. This indicates that the information can be delivered by optical postcard. The proposed idea of an information storage/delivery system can be applied not only to postcard‐sized sheet, but also to sheets of various sizes. Also, there can be various applications which differ from the use of the traditional information media, e.g., the the use of the traditional information media, e.g., the zine.
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