The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 01, 2002
Filed:
Mar. 14, 2000
Applicant:
Inventors:
Todd L. Graves, Garland, UT (US);
Wayne A. Sumner, Ogden, UT (US);
Assignee:
Iomega Corporation, Roy, UT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 2/303 ; G11B 2/304 ; G11B 2/328 ;
U.S. Cl.
CPC ...
G11B 2/303 ; G11B 2/304 ; G11B 2/328 ;
Abstract
A data storage cartridge for a data storage disk drive has a marker including a latent illuminance material such as phosphor. A matte material on the cartridge or within the marker diffusely reflects charging light that is not absorbed by the latent illuminance material in the marker. This reduces noise and signal pollution in the light then emitted by the latent illuminance material. Accordingly, an accurate decay time can be 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.