Position error signal quality

Details Position error signal quality Position error signal quality

2006-06-20

2006-06-20

Sniezek, Andrew L. (Department: 2651)

Dynamic magnetic information storage or retrieval

Monitoring or testing the progress of recording

C360S053000, C360S077010, C360S078010

Reexamination Certificate

active

07064914

ABSTRACT:
In a method for generating a confidence level of a position error signal (PES) component that is indicative of a quality of the PES component, a PES component is generated using position signal samples of a read back signal corresponding to a servo burst pattern. Next, a noise level corresponding to noise in the read back signal is extracted using the position signal samples. A confidence level is then generated based on the PES component and the noise level. A system for performing the method includes a transformation block, a position error signal (PES) component extractor, a noise extractor, and a confidence level generator. The transformation block is configured to receive position signal samples of a read back signal corresponding to a servo burst pattern taken at a sampling frequency. A transformed domain representation of the position signal samples is then generated by the transformation block based on the sampling frequency and the servo burst pattern. The PES component extractor is configured to extract a PES component of a PES based on the position signal samples. The noise extractor is configured to extract a noise level from the transformed domain representation. The confidence level generator is configured to generate a confidence level that is indicative of a quality of the PES component based on the PES component and the noise level.

REFERENCES:
patent: 4247938 (1981-01-01), Kurihara et al.
patent: 5309299 (1994-05-01), Crossland et al.
patent: 5602692 (1997-02-01), Freitas et al.
patent: 5985163 (1999-11-01), Cha et al.
patent: 6005739 (1999-12-01), Yun
patent: 6014288 (2000-01-01), Cha et al.
patent: 6049441 (2000-04-01), Ottesen
patent: 6069764 (2000-05-01), Morris et al.
patent: 6078463 (2000-06-01), Pahr
patent: 6091567 (2000-07-01), Cooper et al.
patent: 6175472 (2001-01-01), Valent
patent: 6181505 (2001-01-01), Sacks et al.
patent: 6188539 (2001-02-01), Elliot et al.
patent: 6195220 (2001-02-01), Ellis et al.
patent: 6243224 (2001-06-01), Sacks et al.
patent: 6249392 (2001-06-01), Sacks et al.
patent: 6327108 (2001-12-01), Ellis et al.
patent: 6377413 (2002-04-01), Sacks et al.
patent: 6392834 (2002-05-01), Ellis
patent: 6411459 (2002-06-01), Belser et al.
patent: 6426845 (2002-07-01), Sacks et al.
patent: 6469849 (2002-10-01), Ellis et al.
patent: 6476997 (2002-11-01), Fukushima et al.
patent: 6480353 (2002-11-01), Sacks et al.
patent: 6490111 (2002-12-01), Sacks
patent: 6490117 (2002-12-01), Sacks et al.
patent: 6510015 (2003-01-01), Sacks et al.
patent: 6510752 (2003-01-01), Sacks et al.
patent: 6522493 (2003-02-01), Dobbek et al.
patent: 6538838 (2003-03-01), Sacks et al.
patent: 6556933 (2003-04-01), Sacks et al.
patent: 6574068 (2003-06-01), Hampshire et al.
patent: 6608477 (2003-08-01), Sacks et al.
patent: 6614608 (2003-09-01), Belser et al.
patent: 6627254 (2003-09-01), Angelo et al.
patent: 6643090 (2003-11-01), Pruett
patent: 6678110 (2004-01-01), Ellis
patent: 6707624 (2004-03-01), Erden et al.
patent: 6751045 (2004-06-01), Morris et al.
patent: 6762895 (2004-07-01), Osafune
patent: 6768956 (2004-07-01), Hayashi
patent: 6798592 (2004-09-01), Codilian et al.
patent: 6798606 (2004-09-01), Tang et al.
patent: 2003/0147171 (2003-08-01), Li et al.

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