公开(公告)号：DE60004043T2

公开(公告)日：2004-04-15

申请号：DE60004043

申请日：2000-05-18

Applicant: IBM

Inventor： BUI XUAN ,  JAQUETTE ALAN ,  KOSKI ALEXANDER ,  TSURUTA KAZUHIRO

IPC: G11B27/28 ,  G11B27/10 ,  G11B27/32 ,  G11B27/36 ,  G11B15/087

Abstract: A system and method for precisely registering and synchronizing data sets on a recording media having a prerecorded servo pattern. The recording media is subject to continuing movement for reading and/or writing the data sets, interrupted by stopping at the end of a selected data set and restarting. During the continuing movement of the recording media, a detector coupled to the servo system continuously reads linear position registration data modulated into the prerecorded servo pattern. An interpolator interpolates the prerecorded registration data to provide precision registration information for the data sets. Upon the drive stopping the recording media, then back hitching the media and the movement restarting, selected read and interpolated registration information is provided. The detector again reads and interpolates the prerecorded registration data, and a comparator compares the again read and interpolated registration information to the provided read and interpolated registration information and any predetermined offset, and indicates a comparison match. A data formatter coupled to the comparator, responsive to the comparison match indication, synchronizes the reading and/or writing of data sets on the recording media.

公开(公告)号：DE60004043D1

公开(公告)日：2003-08-28

申请号：DE60004043

申请日：2000-05-18

Applicant: IBM

Inventor： BUI XUAN ,  JAQUETTE ALAN ,  KOSKI ALEXANDER ,  TSURUTA KAZUHIRO

IPC: G11B27/28 ,  G11B27/10 ,  G11B27/32 ,  G11B27/36 ,  G11B15/087

Abstract: A system and method for precisely registering and synchronizing data sets on a recording media having a prerecorded servo pattern. The recording media is subject to continuing movement for reading and/or writing the data sets, interrupted by stopping at the end of a selected data set and restarting. During the continuing movement of the recording media, a detector coupled to the servo system continuously reads linear position registration data modulated into the prerecorded servo pattern. An interpolator interpolates the prerecorded registration data to provide precision registration information for the data sets. Upon the drive stopping the recording media, then back hitching the media and the movement restarting, selected read and interpolated registration information is provided. The detector again reads and interpolates the prerecorded registration data, and a comparator compares the again read and interpolated registration information to the provided read and interpolated registration information and any predetermined offset, and indicates a comparison match. A data formatter coupled to the comparator, responsive to the comparison match indication, synchronizes the reading and/or writing of data sets on the recording media.