| 摘要 |
PURPOSE: A system for storing and reproducing holographic digital data, and a method for addressing thereof are provided to improve a code rate by expressing address codes by using a fewer bits. CONSTITUTION: A bit setting unit(121) calculates the total number of pages to be stored in a storage medium for deciding the number of bits necessary for addressing codes. A group classifying unit(122) divides the addressing codes into n reference groups and page dividing code groups. A code recording unit(123) deflects a reference beam at a predetermined angle for recording the addressing codes at each page. An output unit(110) outputs data and transmits the addressing code related to the output data. A group reading unit(124) judges the number of the reference groups by dividing the bit number except the last m bit by m, and reads the group to which the reproduced page belongs. A page reading unit(125) reads information of the page which is being reproduced, by using the last m bit. |
