Write velocity identification in a PRML system

Details Write velocity identification in a PRML system Write velocity identification in a PRML system

2005-10-18

2005-10-18

Hudspeth, David (Department: 2651)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Head amplifier circuit

C360S025000, C360S031000, C360S046000, C360S051000, C360S026000, C360S027000, C360S073010, C360S073110, C360S065000, C360S048000, C360S073080

Reexamination Certificate

active

06956709

ABSTRACT:
A tape drive and method of identifying write velocity during reading are provided. When a track is being read, a lead-in code of the data signal is processed prior to determining the data stream. The lead-in code identifies the velocity with which the track data were written. The equalization/detection channel is adjusted based on the identified velocity to compensate for write channel transfer function variation. The lead-in code is coded in a way that is reasonably immune to write channel transfer function variation such that the lead-in code is comprehended prior to adjusting the equalization/detection channel.

REFERENCES:
patent: 5764431 (1998-06-01), Gill
patent: 6282042 (2001-08-01), Hana et al.
patent: 6441985 (2002-08-01), Gill
patent: 6462904 (2002-10-01), Albrecht et al.
patent: 6580768 (2003-06-01), Jaquette
patent: 6839196 (2005-01-01), Trivedi
patent: 2003/0001036 (2003-01-01), Beavers et al.

Affiliated with

Also associated with

Rating

Write velocity identification in a PRML system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Write velocity identification in a PRML system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Write velocity identification in a PRML system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3435927