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1. (WO1991006095) METHOD FOR POSITIONING A MAGNETIC HEAD ON A TRACK
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/006095 International Application No.: PCT/FR1990/000735
Publication Date: 02.05.1991 International Filing Date: 15.10.1990
Chapter 2 Demand Filed: 29.04.1991
IPC:
G11B 5/58 (2006.01)
G PHYSICS
11
INFORMATION STORAGE
B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5
Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
48
Disposition or mounting of heads relative to record carriers
58
with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
Applicants:
EASTMAN KODAK COMPANY [US/US]; Patent Department 343 States Street Rochester, NY 14650 - 2201, US (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
KODAK-PATHE [FR/FR]; 26, rue Villiot F-75594 Paris Cédex 12, FR (FR)
MUR, Jacques, Joseph [FR/FR]; FR (UsOnly)
Inventors:
MUR, Jacques, Joseph; FR
Agent:
BUFF, Michel; Kodak Pathé Département des Brevets et Licences CRT - Zone Industrielle F-71102 Chalon-sur-Saône Cédex, FR
Priority Data:
89/1371716.10.1989FR
Title (EN) METHOD FOR POSITIONING A MAGNETIC HEAD ON A TRACK
(FR) PROCEDE POUR POSITIONNER UNE TETE MAGNETIQUE SUR UNE PISTE
Abstract:
(EN) The invention relates to a method for positioning a magnetic head on the portion of a track where the level of the recorded signal is maximum. The method is characterized in that the position of maximum signal level is obtained by assimilating the curve representing the mean signal level read versus the position of the magnetic head on the track width to a simple symmetrical geometrical form of which is determined an equation of portions of straight lines defining it. Application to the positioning on high density magnetic media.
(FR) L'invention concerne un procédé de positionnement d'une tête magnétique sur la partie d'une piste où le niveau de signal enregistré est maximum. Le procédé est caractérisé en ce que la position du niveau de signal maximum est obtenue en assimilant la courbe représentant le niveau de signal moyen relevé en fonction de la position de la tête magnétique sur la largeur de la piste, à une forme géométrique symétrique simple dont on détermine une équation des portions de droites la définissant. Application au positionnement sur des supports magnétiques à haute densité.
Designated States: US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: French (FR)
Filing Language: French (FR)
Also published as:
EP0495863FR2653260