Recording media, recording and reproducing apparatus, and...

Details Recording media, recording and reproducing apparatus, and... Recording media, recording and reproducing apparatus, and...

2006-03-15

2009-11-24

Olson, Jason C (Department: 2627)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data in specific format

C360S053000

Reexamination Certificate

active

07623311

ABSTRACT:
A magnetic recording layer is formed on a surface of a substrate in magnetic recording media to define magnetic recording regions. Magnetic missing portions are provided in the magnetic recording regions, information cannot be magnetically recorded in the magnetic missing portions. The present invention provides magnetic recording media that enables authentication.

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