Patent ID: 7538962

Claim:
A media event timer comprising: a counter module for generating a sequence of counts, based on a clock signal of a disk drive unit; a counter reset module, operably coupled to the counter module, for setting the counter module to a reset count in response to a servo address mark detection signal; a detector module, operably coupled to the counter module and the servo mark detection signal, for detecting that a servo address mark has been missed and for setting the counter module to a restart count when the servo address mark has been missed; a trigger module, operably coupled to the counter module, for triggering a first media event when a first media event count compares favorably to a count of the sequence of counts; and a trigger control module, operably coupled to the counter module and the trigger module, for disabling the trigger module when the servo address mark is missed and for enabling the trigger module when the counter module is set to the restart count.