Method and device utilizing erasure information as a reliability

Dynamic magnetic information storage or retrieval – General processing of a digital signal – Data verification

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G11B 509

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active

061340650

ABSTRACT:
A method and a device in which information is written on a medium and is read out, and which establishes whether the information read is sufficiently reliable, and in which so-called erasure information is used to establish the influence of media defects and other imperfections on the occurrence of errors in a transmission system. The medium is, for example, a hard disk containing one or more bad spots whose location can be accurately detected. The implementation of the method makes accurate and fast computation of the bit error rate possible.

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