Device and method for scanning data stored on a recording...

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

Reexamination Certificate

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Details

C360S001000, C360S077060, C369S053350

Reexamination Certificate

active

07852586

ABSTRACT:
The invention concerns a method and a device for scanning data stored on a recording medium. The device comprises a reading head and further comprises:means to calculate an error rate of the data read by said reading head, said data being arranged as groups of data,means to align the reading head in respect with the next data to be read according to said error rate of the data read,the reading head reads at least twice some of said groups, changing position in respect with the group of data from one reading to the other,means to compare the calculated error rate corresponding to each position of the said reading head,means to align the reading head with the relative position in respect with the groups of data giving the lowest error rate in order to read the following groups of data, andthe means to align the reading head adjust the frequency of the groups of data read at least twice.

REFERENCES:
patent: 6020985 (2000-02-01), McLeod et al.
patent: 6525897 (2003-02-01), Despain et al.
patent: 7142488 (2006-11-01), Ukawa
patent: 2003/0063532 (2003-04-01), Yamada et al.
patent: WO96/41335 (1996-12-01), None
Search Report dated Nov. 29, 2006.

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