KR880014521A - Optical Disc Data Detection Device - Google Patents

Optical Disc Data Detection Device Download PDF

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Publication number
KR880014521A
KR880014521A KR870004749A KR870004749A KR880014521A KR 880014521 A KR880014521 A KR 880014521A KR 870004749 A KR870004749 A KR 870004749A KR 870004749 A KR870004749 A KR 870004749A KR 880014521 A KR880014521 A KR 880014521A
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KR
South Korea
Prior art keywords
circuit
optical disc
differential
data
data detection
Prior art date
Application number
KR870004749A
Other languages
Korean (ko)
Inventor
조현철
Original Assignee
안시환
삼성전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 안시환, 삼성전자 주식회사 filed Critical 안시환
Priority to KR870004749A priority Critical patent/KR880014521A/en
Publication of KR880014521A publication Critical patent/KR880014521A/en

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Abstract

내용 없음No content

Description

광 디스크 데이타 검출장치Optical Disc Data Detection Device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제3도는 본 발명의 블록도, 제4도는 제3도중 제2미분회로(60) 및 레벨 슬라이싱 회로(70)의 구체 회로도, 제5도는 본 발명의 동작 파형도.3 is a block diagram of the present invention, FIG. 4 is a specific circuit diagram of the second differential circuit 60 and the level slicing circuit 70 of FIG. 3, and FIG. 5 is an operational waveform diagram of the present invention.

Claims (1)

기록시 기록 데이타의 레이져 펄스를 조절하는 빔 조절부(10)을 구비한 광 디스크 재생장치에 있어서, 광 디스크(1)에 기록된 데이타를 재생하는 광 픽업부(100)와, 상기 광 픽업부(100)의 재생신호를 제로 크로싱 신호로 변환하는 제1미분회로(50)와, 상기 제2미분회로(50)의 미분 펄스로 다시 재로 크로싱 신로 변환하여 재생신호의 최대점을 구하고 고주파 잡음을 제거하는 제2미분회로(60)와, 상기 제2미분회로(60)의 미분 펄스의 기준 레벨을 설정하여 원하는 데이타의 파형을 발생하는 레벨 슬라이싱회로(70)와, 상기 레벨 슬라이싱회로(70)의 출력에 의해 재생 데이타를 검출하는 데이타 검출회로(80)로 구성함을 특징으로 하는 회로.An optical disc reproducing apparatus having a beam control unit (10) for adjusting a laser pulse of recording data during recording, comprising: an optical pickup unit (100) for reproducing data recorded on the optical disc (1); The first differential circuit 50 converts the reproduction signal of the (100) into a zero crossing signal, and converts it back to the crossing scene again by the differential pulse of the second differential circuit 50 to obtain the maximum point of the reproduction signal and obtains high frequency noise. A second slicing circuit 60 for removing, a level slicing circuit 70 for generating a waveform of desired data by setting a reference level of the differential pulse of the second differential circuit 60, and the level slicing circuit 70 And a data detection circuit (80) for detecting playback data by the output of the circuit. ※ 참고사항:최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR870004749A 1987-05-14 1987-05-14 Optical Disc Data Detection Device KR880014521A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR870004749A KR880014521A (en) 1987-05-14 1987-05-14 Optical Disc Data Detection Device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR870004749A KR880014521A (en) 1987-05-14 1987-05-14 Optical Disc Data Detection Device

Publications (1)

Publication Number Publication Date
KR880014521A true KR880014521A (en) 1988-12-24

Family

ID=68461290

Family Applications (1)

Application Number Title Priority Date Filing Date
KR870004749A KR880014521A (en) 1987-05-14 1987-05-14 Optical Disc Data Detection Device

Country Status (1)

Country Link
KR (1) KR880014521A (en)

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