发明授权
US5402410A High density storage of information on a substrate with multiple depth and height 失效
在具有多个深度和高度的基板上高密度地存储信息

High density storage of information on a substrate with multiple depth
and height
摘要:
A high density storage medium which stores predetermined information by matching it on one-to-one basis with multiple levels of depth or height formed in predetermined plural areas of substrate surface, a storing method, a reading method and various systems using them have been disclosed.
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