发明授权
US07142336B2 Recording medium and hologram reader 有权
记录介质和全息读取器

Recording medium and hologram reader
摘要:
A recording medium including a storage part to hold a medium identifier intrinsic to each recording medium, and a hologram generated using a reference beam modulated with the medium identifier. Preferably, the hologram is fixed on a surface of the recording medium.
公开/授权文献
信息查询
0/0