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. 03, 2009
Filed:
Mar. 25, 2005
Byung-youn Song, Suwon-si, KR;
Jong-koog Lee, Seoul, KR;
Dong-ryeol Lee, Seoul, KR;
Pyong-yong Seong, Seoul, KR;
Kyung-ui Park, Seoul, KR;
Dong-won Kim, Suwon-si, KR;
Byung-youn Song, Suwon-si, KR;
Jong-koog Lee, Seoul, KR;
Dong-ryeol Lee, Seoul, KR;
Pyong-yong Seong, Seoul, KR;
Kyung-ui Park, Seoul, KR;
Dong-won Kim, Suwon-si, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
A method and apparatus for compensating tilt. The tilt compensation method includes: obtaining one of a jitter best, an RF envelope, and a focus DC offset (FODC) from a detection signal of the ROM data region and determining whether the obtained value is within a tolerance range; and obtaining an initial skew compensation value using the obtained value when the obtained value is within the tolerance, changing the magnitude of current applied to an actuator designed to perform driving in at least three-axis directions to drive an objective lens of an optical pickup assembly in a radial tilt direction when the obtained value is not within the tolerance range, and repeating the obtaining of one of the jitter best, the RF envelope, and the FODC and changing the magnitude of the current until the obtained value is within the tolerance range.