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:
Jan. 29, 2008
Filed:
Jul. 08, 2004
Byoung-ho Choi, Hwaseong-si, KR;
Yong-seock Yoon, Hwaseong-si, KR;
Soo-yul Jung, Hwaseong-si, KR;
Joong-eon Seo, Yongin-si, KR;
Byoung-ho Choi, Hwaseong-si, KR;
Yong-seock Yoon, Hwaseong-si, KR;
Soo-yul Jung, Hwaseong-si, KR;
Joong-Eon Seo, Yongin-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A method of determining a type of a disc for a disc system to record/reproduce a plurality of recordable discs having different track pitches, including detecting a plurality of signals for determination while moving an objective lens up or down and simultaneously making the objective lens vibrate in a radial direction of the disc, and determining the types of the discs having different track pitches by using the detected signals for determination.