Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital data error correction
Patent
1997-07-14
2000-06-20
Grant, William
Error detection/correction and fault detection/recovery
Pulse or data error handling
Digital data error correction
714752, 714757, 714761, 714767, 714768, 714769, 714770, 714772, 714773, G11C 2900
Patent
active
06079044&
ABSTRACT:
Apparatus and methods for storing predefined information with error correcting code (ECC) in a direct access storage device are provided. Predetermined information is identified and loaded to an ECC generator for customer data to be read and written. The identified predetermined information includes an address for customer data to be read and written. The customer data is written and loaded in parallel to the ECC generator. Then the generated ECC that reflects the pre-loaded predetermined information is written at the end of the written customer data. The customer data and ECC is read and loaded in parallel to the ECC generator. Errors in the predetermined information that is not written to the disk surface, can be detected from the read ECC.
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Cunningham Earl Albert
Greenberg Richard
Shea Michael J.
Grant William
International Business Machines - Corporation
Marc McDieanel
Pennington Joan
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