Materials for optical medium copy-protection transiently reacting to a reader beam
申请人:——
公开号:US20040004922A1
公开(公告)日:2004-01-08
A method and system for providing copy-protected optical medium using transient optical state change security materials capable of changing optical state and software code to detect such change in optical state.
一种使用短暂光学状态变化安全材料和软件代码检测光学状态变化的方法和系统,用于提供受保护的光学介质。
MATERIALS FOR OPTICAL MEDIUM COPY-PROTECTION TRANSIENTLY REACTING TO A READER BEAM
申请人:SELINFREUND H. Richard
公开号:US20080062838A1
公开(公告)日:2008-03-13
A method and system for providing copy-protected optical medium using transient optical state change security materials capable of changing optical state and software code to detect such change in optical state.