Bibliographic data: EP1843333  (A2) ― 2007-10-10


Optical information reproducing apparatus and optical information reproducing method using the same  

Page bookmark EP1843333  (A2)  -  Optical information reproducing apparatus and optical information reproducing method using the same
Inventor(s): EUI-SEOK HWANG [KR]; HAK-SUN KIM [KR]; PIL-SANG YOON [KR] +
Applicant(s): DAEWOO ELECTRONICS CORP [KR] +
Classification:
- international: G11B7/0065; G11B7/09; G11B7/00; G11B7/09
- European:
Application number: EP20070005295 20070314 
Priority number(s): KR20060031303 20060406; KR20060092892 20060925
Also published as:
EP1843333  (A3)  


Abstract of  EP1843333  (A2)


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First page clipping of EP1843333 (A2)

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 (100) which inputs a reference beam (R) to a reproduction recording area to be reproduced and a peripheral recording area around the reproduction recording area on an optical information recording medium (1), a peripheral beam detecting unit (200) 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 (300) which analyzes optical information of the detected peripheral beam and controls a tracking position, and a reproduction beam detecting unit (400) which detects the reproduction beam having passed 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.