Optical focus error offset to reduce radial to vertical...

Details Optical focus error offset to reduce radial to vertical... Optical focus error offset to reduce radial to vertical...

2005-12-15

2011-12-27

Danielsen, Nathan (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S053280

Reexamination Certificate

active

08085629

ABSTRACT:
A method and system are provided for minimizing or optimising radial to vertical crosstalk (RVC) in an error signal in an optical record carrier reader is record carrier losed. Focus error offset values are applied to the reader. The radial to vertical crosstalk is determined after each focus error offset value is applied. The focus error offset value which minimizes or optimises the radial to vertical crosstalk is selected for use by the reader.

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patent: 6633523 (2003-10-01), Masaki et al.
patent: 2002/0136115 (2002-09-01), Kadlec et al.
patent: 2002/0141302 (2002-10-01), Kadlec et al.
patent: 3273529 (1991-12-01), None
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patent: 10105995 (1998-04-01), None
patent: 2003162826 (2003-06-01), None
patent: WO0133560 (2001-05-01), None
Machine-Assisted Translation of JP 10105995 A.
Machine-Assisted Translation of JP 2003162826 A.

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