NDLI: Servo Signal Quality for Perpendicular Recording in Servo Write Process

Content Provider	IEEE Xplore Digital Library
Author	Akagi, K. Hamaguchi, T.
Copyright Year	1965
Abstract	In regards to servo-writing with perpendicular recording, we investigated servo-write quality and servo performance, and found that the premagnetization conditions, the magnetic-flux flow mechanism, and head structure strongly affect the servo-write quality. In response to these findings, we clarified that the flux flows through the writer to the reader are one of the root causes of servo-signal deterioration. In addition, we found that the flux amount is related to the magnetization switching ratio (MSR) - a one sided magnetization pole per writer-pole area. On the other hand, the reader can absorb flux even if it is far from the flux source. This means that not only the reader element but also the adjacent structure can absorb flux from the flux source.
Sponsorship	IEEE Magnetics Society
Starting Page	3779
Ending Page	3784
Page Count	6
File Size	1545262
File Format	PDF
ISSN	00189464
Volume Number	43
Issue Number	9
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-09-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Servomechanisms Signal processing Perpendicular magnetic recording Magnetic heads Rail to rail outputs Crosstalk Magnetic flux Magnetization Writing Circuit noise servo-track-write NRRO perpendicular recording RRO self-servo-write servo signal quality
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Potential of Servo Pattern Printing on PMR Media With High-Density Servo Signal Pattern

An alternating DC track servo pattern for perpendicular recording

Advanced DC-free track code pattern using diphase code for perpendicular recording

Performance of Discrete Track Perpendicular Media on Off-Track-Capability at Higher Track Density

Written-In RRO and NRRO Characteristics in Mobile Hard Disk Drives

Control Design for Self-Servo Track Writing Using a State-Space Disturbance Observer

Challenges for Perpendicular Write Heads at High Recording Density

Performance evaluation of discrete track perpendicular media for high recording density

Reverse Overwrite Process in Shingled Recording Process at Ultrahigh Track Density

Servo Signal Quality for Perpendicular Recording in Servo Write Process

Similar Documents

Potential of Servo Pattern Printing on PMR Media With High-Density Servo Signal Pattern

An alternating DC track servo pattern for perpendicular recording

Advanced DC-free track code pattern using diphase code for perpendicular recording

Performance of Discrete Track Perpendicular Media on Off-Track-Capability at Higher Track Density

Written-In RRO and NRRO Characteristics in Mobile Hard Disk Drives

Control Design for Self-Servo Track Writing Using a State-Space Disturbance Observer

Challenges for Perpendicular Write Heads at High Recording Density

Performance evaluation of discrete track perpendicular media for high recording density

Reverse Overwrite Process in Shingled Recording Process at Ultrahigh Track Density

Servo Signal Quality for Perpendicular Recording in Servo Write Process