Patent ID: 6097561
Filing Date: 2000-08-01
Classification: G11B

Abstract:
In a disc drive of the type having a rotatable disc and a controllably positionable head used to store user data in a plurality of data blocks on tracks of the disc, each of the data blocks having a user data field wherein the user data are stored, a first sync field and a subsequently occurring second sync field, the sync fields storing first and second sync words, respectively, which can be used to establish symbol boundaries used by a read channel of the disc drive to decode the user data, the read channel operable to decode the user data when a read gate is asserted by the disc drive, a method for recovering the user data from a selected data block, comprising steps of:(a) initiating a delay of variable duration during which the read gate is deasserted as a first portion of the selected data block passes proximate the head; and(b) asserting the read gate signal to read a second, remaining portion of the selected data block upon completion of the delay.