| 摘要 |
<P>PROBLEM TO BE SOLVED: To enhance the design of a recording medium itself in a hologram recording medium for recording computer data. <P>SOLUTION: The optical recording medium as a hologram memory contains is used to record data in a first form such as computer data and data in a second form such as image data that can be recognized by a person on the optical recording medium. That is, the recording medium is used as a recording medium with a large capacity for computer data, as well as recording image data visually recognized by a person are recorded so as to make the image visible in the appearance of the medium. Since the recorded data in the first form are computer data which are premised as being read out by a reproducing apparatus, the reproducing apparatus reads out reproduced images of the recorded data in the first and second forms from the optical recording medium, and then extracts only the recorded data in the first form. <P>COPYRIGHT: (C)2007,JPO&INPIT |
