发明授权
- 专利标题： Latent illuminance discrimination marker for data storage cartridges
- 专利标题（中）： 数据存储盒的潜在照度辨别标记
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申请号： US09161007申请日： 1998-09-25
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公开(公告)号： US06266211B1公开(公告)日： 2001-07-24
- 发明人: Fred C. Thomas, III , Glenn B. Dixon , Todd R. Shelton , Todd L. Graves
- 申请人： Fred C. Thomas, III , Glenn B. Dixon , Todd R. Shelton , Todd L. Graves
- 主分类号： G11B1902
- IPC分类号： G11B1902
摘要：
A data storage cartridge for a data storage disk drive has a latent illuminance marker. A light source illuminates the marker and the marker emits illuminance as phosphorescence. A photosensor detects the emitted illuminance, and the decay time is determined. The decay time is checked to provide identification of different types or generations of data storage cartridges or provides a secure keying mechanism for authorized access to proprietary software.