EP 0966738 A1 19991229 - A FLYING HEAD POSITIONER WITH FINE POSITIONING
Title (en)
A FLYING HEAD POSITIONER WITH FINE POSITIONING
Title (de)
STELLANTRIEB FÜR FLIEGENDEN OPTISCHEN KOPF MIT FEINEINSTELLUNG
Title (fr)
POSITIONNEUR DE TETE FLOTTANTE A POSITIONNEMENT FIN
Publication
Application
Priority
- US 9706329 W 19970415
- US 1549396 P 19960415
- US 1574196 P 19960415
- US 1548996 P 19960415
- US 1544296 P 19960415
- US 1684896 P 19960503
- US 80430197 A 19970221
- US 82460597 A 19970326
Abstract (en)
[origin: WO9739447A1] A head positioner for an optical disk drive comprises a flying optical head, a coarse positioner and a head carriage coupled to the coarse positioner. The head carriage includes a fine positioner on which the flying optical head is mounted. A method for positioning a flying optical head includes steps of positioning the head carriage within a distance of the target position equal to a first positional resolution and rotating the head carriage to position the head within a distance of the target position equal to a second positional resolution less than the first positional resolution. The head positioner may also comprise a sensor having an output representative of a flying height of the head above the medium, a controller coupled to the sensor output and an actuator arranged to apply a variable load force to the flying head through the head carriage.
IPC 1-7
IPC 8 full level
G11B 5/60 (2006.01); G11B 7/085 (2006.01); G11B 7/09 (2006.01); G11B 7/12 (2006.01); G11B 21/21 (2006.01); G11B 7/0037 (2006.01)
CPC (source: EP)
G11B 7/093 (2013.01); G11B 7/0937 (2013.01); G11B 7/12 (2013.01); G11B 7/122 (2013.01); G11B 21/21 (2013.01); G11B 7/0037 (2013.01)
Citation (search report)
See references of WO 9739447A1
Designated contracting state (EPC)
FR GB
DOCDB simple family (publication)
WO 9739447 A1 19971023; EP 0894321 A1 19990203; EP 0894321 B1 20010207; EP 0966738 A1 19991229; JP 2002504252 A 20020205; WO 9739446 A1 19971023
DOCDB simple family (application)
US 9706329 W 19970415; EP 97918668 A 19970415; EP 97918669 A 19970415; JP 53734397 A 19970415; US 9706328 W 19970415