KR930014327A - Recording / Playback Device of Optical Disc - Google Patents

Recording / Playback Device of Optical Disc Download PDF

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Publication number
KR930014327A
KR930014327A KR1019910026015A KR910026015A KR930014327A KR 930014327 A KR930014327 A KR 930014327A KR 1019910026015 A KR1019910026015 A KR 1019910026015A KR 910026015 A KR910026015 A KR 910026015A KR 930014327 A KR930014327 A KR 930014327A
Authority
KR
South Korea
Prior art keywords
data
switching unit
current
optical disc
converting
Prior art date
Application number
KR1019910026015A
Other languages
Korean (ko)
Other versions
KR0135598B1 (en
Inventor
우경찬
Original Assignee
정몽헌
현대전자산업 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 정몽헌, 현대전자산업 주식회사 filed Critical 정몽헌
Priority to KR1019910026015A priority Critical patent/KR0135598B1/en
Publication of KR930014327A publication Critical patent/KR930014327A/en
Application granted granted Critical
Publication of KR0135598B1 publication Critical patent/KR0135598B1/en

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor

Landscapes

  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

본 발명은 1개의 채널을 사용하여 재생신호를 발생시킬 수 있게한 광디스크의 기록/재생 장치에 관한 것으로 종래 광자기 디스크는 데이타 재생시 로데이타와 모데이타를 서로 다른 채널에서 만들기 때문에 회로가 복잡해지고 원가가 상승되었으나 본 발명에서는 1개의 채널을 사용하여 데이타를 발생시킬 수 있게 함으로 회로가 간단해지고 원가를 절감시킬 수가 있는 것이다.The present invention relates to a recording / reproducing apparatus for an optical disc capable of generating a reproduction signal using one channel. In the conventional magneto-optical disc, since the data and the data are made in different channels during the data reproduction, the circuit becomes complicated. Although the cost has risen, in the present invention, it is possible to generate data using one channel, thereby simplifying the circuit and reducing the cost.

Description

광디스크의 기록/재생장치Optical disc recording / playback device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명의 광디스크 기록/재생 회로도.1 is an optical disk recording / reproducing circuit diagram of the present invention.

제2도는 로데이타와 모데이타의 참고도.2 is a reference diagram of the low data and the data.

제3도는 광디스크에 로데이타와 모데이타가 기록된 상태를 나타낸 도면.3 is a diagram showing a state where raw data and data are recorded on an optical disc.

제4도는 본 발명에 따른 타이밍 챠트.4 is a timing chart according to the present invention.

Claims (1)

빛을 감지하여 전류로 변환시키는 센서(1)와, 상기 센서(1)의 전류를 전압으로 변환시키는 전류-전압 변환장치(2)와, 상기 전류-전압 변환장치(2)의 출력신호중 저주파 성분을 제거하는 적분회로(3)와, 상기 적분회로(3)의 데이타의 위상에 따라 가감산을 행하여 2개의 데이타를 출력시키는 연산회로(4)와, 상기 연산회로(4)의 2개의 데이타중 하나를 선택하는 스위칭부(5)와, 상기 스위칭부(5)를 제어하기 위한 신호를 발생시키는 섹터 마스크 감지기(6)와, 클럭을 발생시키는 클럭 발생기(7)와, 상기 섹터마스크감지기(6)와 클럭발생기(7)에 접속되어 설정된 만큼 클럭을 카운팅하는 카운터(8)와, 상기 카운터(8)의 출력신호폭을 변환시켜 상기 스위칭부(5)를제어하는 펄스폭 변환기(9)와, 상기 스위칭부(5)에 의해 선택된 데이타를 정형시키는 파형 정형기(10)와, 상기 파형 정형기(10)를 통한 재생 신호를 일정하게 만들어 2치화수단(12)과 PLL수단(13)을 통해 출력시키는 자동이득 조절부(11)를 포함하여 이루어지는 광디스크의 기록/재생장치.A sensor 1 for detecting light and converting it into a current, a current-voltage converter 2 for converting a current of the sensor 1 into a voltage, and a low frequency component of an output signal of the current-voltage converter 2 Of an integrating circuit 3 which removes?, An calculating circuit 4 which adds and subtracts according to the phase of the data of the integrating circuit 3, and outputs two data; and among the two data of the calculating circuit 4; A switching unit 5 for selecting one, a sector mask detector 6 for generating a signal for controlling the switching unit 5, a clock generator 7 for generating a clock, and the sector mask sensor 6 And a counter 8 for counting the clock as set in connection with the clock generator 7, a pulse width converter 9 for converting the output signal width of the counter 8 to control the switching unit 5; Waveform shaper 10 for shaping the data selected by the switching unit 5, and A recording / reproducing apparatus for an optical disc, comprising an automatic gain adjusting section (11) which makes a reproduction signal through the waveform shaper (10) constant and outputs it through the digitizing means (12) and the PLL means (13). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910026015A 1991-12-31 1991-12-31 Optical disk record reproducing apparatus KR0135598B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910026015A KR0135598B1 (en) 1991-12-31 1991-12-31 Optical disk record reproducing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910026015A KR0135598B1 (en) 1991-12-31 1991-12-31 Optical disk record reproducing apparatus

Publications (2)

Publication Number Publication Date
KR930014327A true KR930014327A (en) 1993-07-23
KR0135598B1 KR0135598B1 (en) 1998-04-22

Family

ID=19327439

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910026015A KR0135598B1 (en) 1991-12-31 1991-12-31 Optical disk record reproducing apparatus

Country Status (1)

Country Link
KR (1) KR0135598B1 (en)

Also Published As

Publication number Publication date
KR0135598B1 (en) 1998-04-22

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