Optical discs including equi-radial and/or spiral analysis zones and related disc drive systems and methods
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United States of America Patent
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Issued Date -
Jan 6, 2005
app pub date -
Jan 15, 2003
filing date -
Jan 29, 2002
priority date (Note) -
Abandoned
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Abstract
An optical analysis disc includes a substrate having an inner perimeter and an outer perimeter and an operational layer associated with the substrate. The operational layer includes encoded information located substantially along information tracks. An analysis area includes investigational features. The analysis area is positioned between the inner perimeter and the outer perimeter of the substrate and directed along the information tracks so that when an incident beam of electromagnetic energy tracks along the information tracks, any investigational features within the analysis zone are thereby interrogated circumferentially.
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