| 摘要 |
<p>PURPOSE: To provide the new data information storage medium, which can surely store respective pieces of data even when its length is different for each piece of data, and the data information retrieval device for easily and surely retrieving data information stored in this data information storage medium. CONSTITUTION: Concerning the data information storage medium for storing the data information having key information contents 3c more than one piece, the data information is provided with a key information length code 3b provided for each key information content for expressing the length of that key information content 3c and an identifier 3a provided for each key information content and having information expressing the classification of that key information content 3c, and the data information is stored while mutually making correspondent the identifier 3a, key information length code 3b and key information content 3c for each key information content.</p> |
