发明名称 |
Holographic storage medium and reproduction of data therefrom |
摘要 |
A storage medium has at least one diffraction grating. The diffraction grating is formed as a holographic interference fringe pattern. The pattern is formed as it two-dimensionally diffracts an incident light beam in a plurality of directions or one-dimensionally diffracts an incident light beam in a direction. A combination of such patterns and also a plurality of rows of such patterns on the storage medium are available. A light beam is radiated to the storage medium. The light beam diffracted in the direction(s) is detected by a photodetector, such as a CCD device, that generates a signal carrying data stored as the holographic interference fringe pattern. The signal is then decoded by a processor to reproduce the data.
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申请公布号 |
US6160782(A) |
申请公布日期 |
2000.12.12 |
申请号 |
US19980218585 |
申请日期 |
1998.12.22 |
申请人 |
VICTOR COMPANY OF JAPAN, LTD. |
发明人 |
KAYANUMA, KANJI;NAMIKI, KAZUNORI;NARUSAWA, KENJI |
分类号 |
B42D15/10;G11B7/00;G11B7/0055;G11B7/0065;G11B7/013;G11B7/135;G11B7/24;(IPC1-7):G11B7/00;G11B7/26;G03H1/02 |
主分类号 |
B42D15/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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