| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a service method using an optical information recording device which records information in an optical information medium by using holography, and an optical information reproducing device which reproduces information from the information recording medium by using the holography. <P>SOLUTION: Information of the modulation pattern of a reference light 305<SB>1</SB>for reproduction which makes individual information 302<SB>1</SB>reproducible is provided in response to a request of a user in order to reproduce the individual information 302<SB>1</SB>from an optical information recording medium in which various pieces of information 302<SB>1</SB>, 302<SB>2</SB>, 302<SB>3</SB>are recorded using a plurality of reference rays of light 305<SB>1</SB>, 305<SB>2</SB>, 305<SB>3</SB>which are provided to users and whose modulation patterns are different. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
