发明名称 Apparatus and method for providing a tracking servo control when reproducing optical information
摘要 An optical information reproducing apparatus and an optical information reproducing method using the same are provided. The optical information reproducing apparatus includes: a reference beam providing unit which inputs a reference beam to a reproduction recording area to be reproduced and a peripheral recording area around the reproduction recording area on an optical information recording medium, a peripheral beam detecting unit which transmits a reproduction beam reproduced from the reproduction recording area in response to the reference beam and detects a peripheral beam reproduced from the peripheral recording area, a tracking servo unit which analyzes optical information of the detected peripheral beam and controls a tracking position, and a reproduction beam detecting unit which detects the reproduction beam having pass through the peripheral beam detecting unit. Accordingly, it is possible to judge a current tracking state using the peripheral beam and to perform a tracking servo control process using the judgment result at the time of reproducing optical information.
申请公布号 US8634282(B2) 申请公布日期 2014.01.21
申请号 US20070688492 申请日期 2007.03.20
申请人 KIM HAK SUN;YOON PIL SANG;HWANG EUI SEOK;MAPLE VISION TECHNOLOGIES INC. 发明人 KIM HAK SUN;YOON PIL SANG;HWANG EUI SEOK
分类号 G11B7/09;G11B7/0065 主分类号 G11B7/09
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