G - Physics – 11 – B
Patent
G - Physics
11
B
352/32.21
G11B 7/095 (2006.01) G11B 7/085 (2006.01) G11B 7/09 (2006.01)
Patent
CA 1261467
FOCUS SERVOMECHANISM CONTROL SYSTEM OF OPTICAL DISC SYSTEM HAVING OFFSET SETTING MEANS ABSTRACT OF THE DISCLOSURE A focus servomechanism control system in an optical disc system for controlling a light focusing unit to adjust a focus of light impinging on a track in a rotatable optical disc. The focus servomechanism control system includes a unit for moving the light focusing unit in a direction perpendicular to a plane of the optical disc; a unit for producing a focus error signal; a unit for producing a track error signal; and a unit for controlling a position of the light focusing unit through the light focusing unit moving unit in response to the focus error signal and the offset parameter. The focus servomechanism control system further includes an offset setting unit for continuously setting, during an offset adjustment mode, a plurality of offset parameters to the position control unit, to determine a maximum amplitude of the track error signal, and to set the offset parameter producing the maximum amplitude of the track error signal to the position control unit. In a normal operation, the focus servomechanism control system effects-the focus control in response to the set offset parameter and the focus error signal.
523679
Fujitsu Limited
Mcfadden Fincham
LandOfFree
Focus servomechanism control system of optical disc 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 Focus servomechanism control system of optical disc system..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Focus servomechanism control system of optical disc system... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1242298