Center error mechanical center adjustment

Details Center error mechanical center adjustment Center error mechanical center adjustment

2005-10-25

2009-08-25

Young, Wayne R (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S044280, C369S044110

Reexamination Certificate

active

07580331

ABSTRACT:
An apparatus comprising a center error creation circuit, a center error offset injection circuit and a center error controller. The center error creation circuit may be configured to generate a center error signal in response to one or more photo-diode signals. The center error offset injection circuit may be configured to (i) offset the center error signal and (ii) generate an offset signal. The lens controller may be configured to adjust a lens in a sled housing at a mechanical center is response to the offset signal when the apparatus is in a rough seek mode.

REFERENCES:
patent: 4956833 (1990-09-01), Kokado et al.
patent: 5920528 (1999-07-01), Ohshima et al.
patent: 6549492 (2003-04-01), Song
patent: 2001/0020674 (2001-09-01), Youn
patent: 2003/0099170 (2003-05-01), Cheng
patent: 2004/0136282 (2004-07-01), Chen

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