Patent ID: 7436621
Filing Date: 2008-10-14
Classification: G11B

Abstract:
1. In a tape drive system, an apparatus comprising: a read/write head including first and second bumps wherein the first bump includes at least one first bump read/write element, a first servo read element and a second servo read element, and wherein the second bump includes at least one second bump read/write element, a third servo read element and a fourth servo read element; wherein during a write operation the first bump is a write bump and the second bump is a read bump; wherein the first servo read element is substantially aligned with the third servo read element relative to a tape path; wherein the second servo read element is substantially aligned with the fourth servo read element relative to the tape path; a controller circuit comprising an azimuth processing section connected to receive servo signals provided by the first, second, third and fourth servo read elements during the write operation, the azimuth processing section comprising wherein the controller circuit utilizes difference signals output from the low-pass filter to provide an azimuth component of a position error signal during the write operation.