Bi-frequency servo pattern

Details Bi-frequency servo pattern Bi-frequency servo pattern

2006-04-04

2006-04-04

Hudspeth, David (Department: 2651)

Dynamic magnetic information storage or retrieval

Modulating or demodulating

C360S048000, C360S077080

Reexamination Certificate

active

07023631

ABSTRACT:
A data storage device for retrieving data includes a controllably positionable head and a storage medium having servo information comprising a phase pattern having a first frequency and a PES pattern having a second frequency, the second frequency being different from the first frequency.

REFERENCES:
patent: 4511938 (1985-04-01), Betts
patent: 5477103 (1995-12-01), Romano et al.
patent: 5774298 (1998-06-01), Cheung et al.
patent: 5909330 (1999-06-01), Carlson et al.
patent: 6118604 (2000-09-01), Duffy
patent: 6212047 (2001-04-01), Payne et al.
patent: 6243224 (2001-06-01), Sacks et al.
patent: 6270885 (2001-08-01), Hokkyo et al.
patent: 6426845 (2002-07-01), Sacks et al.
patent: 6710967 (2004-03-01), Hennecken et al.
patent: 6791774 (2004-09-01), Albrecht et al.
patent: 2003/0197964 (2003-10-01), Ashikaga et al.
patent: WO 99/50840 (1999-10-01), None

Affiliated with

Also associated with

Rating

Bi-frequency servo pattern does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bi-frequency servo pattern, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bi-frequency servo pattern will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3618358