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:
Jun. 10, 2008
Filed:
Jun. 03, 2004
Yong-seock Yoon, Hwaseong-si, KR;
Byoung-ho Choi, Hwaseong-si, KR;
Soo-yul Jung, Hwaseong-si, KR;
Joong-eon Seo, Youngin-si, KR;
Dong-jin Lee, Seongnam-si, KR;
Yong-seock Yoon, Hwaseong-si, KR;
Byoung-ho Choi, Hwaseong-si, KR;
Soo-yul Jung, Hwaseong-si, KR;
Joong-Eon Seo, Youngin-si, KR;
Dong-jin Lee, Seongnam-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A method of discriminating an optical disc type and an apparatus thereof. The method for an optical disc system of recording and/or reproducing an optical disc that includes an optical pickup having a laser diode, an object lens, and a light receiving device, checks a track error signal while moving the object lens to upward/downward, and discriminates an optical disc type by using the magnitude of the checked track error signal. The method and apparatus discriminate the disc type in the initial stage of focusing where the object lens moves to upward/downward.