Latent illuminance discrimination marker system for data storage cartridges
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United States of America Patent
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-
Mar 19, 2002
Issued Date -
N/A
app pub date -
Sep 25, 1998
filing date -
Sep 26, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
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.
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