Patent ID: 7450326
Filing Date: 2008-11-11
Classification: G11B

Abstract:
1. A method to determine a low temperature set of write pre-compensation parameters for a read/write head writing to a magnetizable material, the method comprising: applying a first write current to the read/write head at a first temperature; tuning the read/write head to obtain a first set of write pre-compensation parameters, the first set of write pre-compensation parameters instructing a read/write channel to modify placement of transitions relative to the clock cycle; applying a second write current to the read/write head at a second temperature; tuning the read/write head to obtain a second set of write pre-compensation parameters, the second set of write pre-compensation parameters instructing a read/write channel to modify placement of transitions relative to the clock cycle; and determining the low temperature set of write pre-compensation parameters based on the first set and second set of write pre-compensation parameter; and wherein tuning the read/write head to obtain a first and second set of write pre-compensation parameters includes: