The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 14, 2000
Filed:
Aug. 24, 1998
Applicant:
Inventors:
Dae Ik Kwon, Kyungki-do, KR;
Byung Hoon Min, Seoul, KR;
Assignee:
LG Electronics, Inc., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369 4432 ; 369 4429 ; 369 4435 ;
Abstract
An eccentricity suppression control method for suppressing an affect caused by an eccentricity of an optical disc and responding to the eccentricity of the optical disc quickly. In the method, eccentricity amounts according to a phase of the optical disc is detected and estimating correction amounts for each phase suitable for suppressing each of the eccentricity amount according to the phase. The estimating correction amount for each phase is added to a tracking control signal responding to a tracking error, thereby performing a tracking control quickly and accurately.