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:
Feb. 23, 2010
Filed:
Nov. 14, 2005
Applicant:
Jeong-hun Kim, Gyeonggi-do, KR;
Inventor:
Jeong-hun Kim, Gyeonggi-do, KR;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 7/00 (2006.01); G11B 20/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
An apparatus for detecting an oscillation of a servo controller of an optical disk is provided. An oscillation detector, electrically coupled to the servo controller of the optical disk, is provided and is configured to receive an error signal associated with the servo controller. The oscillation detector is further configured to compare an amplitude, a width and a period of the error signal with a reference amplitude, a reference width and reference period to determine if an oscillation is present in the error signal. Related methods and computer program products are provided.