06266211 is referenced by 14 patents and cites 9 patents.

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.

Title
Latent illuminance discrimination marker for data storage cartridges
Application Number
9/161007
Publication Number
6266211 (B1)
Application Date
September 25, 1998
Publication Date
July 24, 2001
Inventor
Todd L Graves
Garland
UT, US
Todd R Shelton
Syracuse
UT, US
Glenn B Dixon
West Point
UT, US
Fred C Thomas III
Ogden
UT, US
Agent
Woodcock Washburn Kurtz Mackiewicz & Norris
US
Assignee
Iomega Corporation
UT, US
IPC
G11B 19/02
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