Method for measuring write width and/or read width of a...

Details Method for measuring write width and/or read width of a... Method for measuring write width and/or read width of a...

2011-03-01

2011-03-01

Tzeng, Fred (Department: 2627)

Dynamic magnetic information storage or retrieval

Monitoring or testing the progress of recording

Reexamination Certificate

active

07898755

ABSTRACT:
A write sensitive width is calculated by writing a test data by a write head by moving the write head in a radial direction of a magnetic recording medium at a designated speed K to obliquely cross a designated track or a track adjacent to the designated track, reading the test data recorded in the track obliquely by a read head to obtain a read characteristics profile of a read voltage with respect to the track scanning time and obtaining a moving distance in the radial direction of the head by multiplying the test data scanning time of the read head with the designated moving speed K.

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patent: 2007-012119 (2007-01-01), None
patent: 2007-149155 (2007-06-01), None

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