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:
Oct. 14, 2014
Filed:
May. 16, 2013
Toshiba Samsung Storage Technology Korea Corporation, Suwon-si, KR;
Dong-han Lee, Suwon-si, KR;
Young-ok Koh, Yongin-si, KR;
Sang-chul Kim, Suwon-si, KR;
Hong-kyung Lee, Suwon-si, KR;
Toshiba Samsung Storage Technology Korea Corporation, Suwon-si, KR;
Abstract
Provided are an apparatus and method of generating a tracking error signal, and an optical information storage system including the apparatus. The apparatus includes a bias signal generator for generating a bias signal for canceling a direct current (DC) offset of a push-pull signal using a tracking control signal generated by the tracking controller. Accordingly, an offset generated in a tracking error signal may be canceled or otherwise reduced using the bias single instead of using an additional side beam.