发明名称 |
HOLOGRAM RECORDING/REPRODUCING SYSTEM |
摘要 |
<p>A hologram recording and reproducing system having compatibility has: a supporting unit for freely attachably supporting a recording medium including a photosensitive material; a signal light-generating unit for projecting a coherent light beam modulated according to a predetermined data into a recording medium and generating a diffraction grating by providing a three-dimensional light interference pattern in the recording medium; a detector unit for detecting and photoelectrically converting a diffracted light from the diffraction grating; and a demodulating unit for demodulating a predetermined data from an output from the detector unit. The detector unit has an intermediate data-generating unit for generating an intermediate data, and the demodulating unit has a conversion table in which the intermediate data and the predetermined data are uniquely associated, and demodulates the predetermined data by performing a computation based on a correlation in the conversion table.</p> |
申请公布号 |
EP1526414(A1) |
申请公布日期 |
2005.04.27 |
申请号 |
EP20030766617 |
申请日期 |
2003.05.16 |
申请人 |
PIONEER CORPORATION |
发明人 |
ITOH,Y.;TANAKA,S.;TACHIBANA,A.;KUBOTA,Y.;KURODA,K;SUGIURA,S. |
分类号 |
G06K19/06;G03H1/16;G03H1/26;G06K7/12;G11B7/0065;(IPC1-7):G03H1/04;G11B7/006 |
主分类号 |
G06K19/06 |
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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