System and method to determine the time domain equalized...

Details System and method to determine the time domain equalized... System and method to determine the time domain equalized...

2005-09-06

2005-09-06

Hoff, Marc S. (Department: 2857)

Dynamic magnetic information storage or retrieval

Monitoring or testing the progress of recording

C702S069000

Reexamination Certificate

active

06940671

ABSTRACT:
Systems and methods are provided through which a time domain equalized signal-to-noise-ratio (ESNR) of an electronic device is determined by executing ESNR determining firmware in the electronic device. The ESNR is used to perform rejection/acceptance testing of the electronic device during manufacturing of the device, and/or to perform read channel tuning and optimization. In one embodiment, determination of the ESNR includes both phase level retry and global level retry.

REFERENCES:
patent: 5721816 (1998-02-01), Kusbel et al.
patent: 5754353 (1998-05-01), Behrens et al.
patent: 6185175 (2001-02-01), Zook
patent: 6236628 (2001-05-01), Kim
patent: 6687205 (2004-02-01), Huber

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