KR930023950A - Circuit and Method for Laser Power Determination of Optical Recording & Reproducing Equipment - Google Patents

Circuit and Method for Laser Power Determination of Optical Recording & Reproducing Equipment Download PDF

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Publication number
KR930023950A
KR930023950A KR1019920007796A KR920007796A KR930023950A KR 930023950 A KR930023950 A KR 930023950A KR 1019920007796 A KR1019920007796 A KR 1019920007796A KR 920007796 A KR920007796 A KR 920007796A KR 930023950 A KR930023950 A KR 930023950A
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South Korea
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laser power
data
signal
optical recording
power determination
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KR1019920007796A
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KR0183039B1 (en
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정정주
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강진구
삼성전자 주식회사
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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/12—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by optical means

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  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)

Abstract

기록 가능한 광기록 재생장치에 있어서, 최적의 레이저 파워를 제공하기 위해 제아된 발명은 상기 장치의 광픽업으로부터 재생된 RF신호의 직류성분을 소정주기로 디지탈 변환하기 위한 변환수단과, 상기 변환수단의 디지탈 신호를 상기 주기별로 저장하고, 인가되는 코드 데이타의 ID번호에 따라 상기 저장된 신호의 매칭정도를 분석하여 레이저 파워 결정 데이타를 출력하기 위한 파워 결정수단으로 구성되어 있다.In the recordable optical recording and reproducing apparatus, the invention devised to provide an optimum laser power is provided with converting means for digitally converting a DC component of an RF signal reproduced from the optical pickup of the apparatus at a predetermined period, and digital of the converting means. And power determining means for storing the signal for each period and analyzing the matching degree of the stored signals according to the ID number of the code data to be output and outputting laser power determination data.

Description

광기록 재생장치의 레이저 파워결정을 위한 회로 및 방법Circuit and Method for Laser Power Determination of Optical Recording & Reproducing Equipment

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

제1도는 본 발명에 따른 일실시예의 회로도, 제2도는 제1도에 따른 마이컴(5)의 최적 레이저 파워결정에 대한 동작 흐름도, 제3도 중 (3A)도는 제1도에 따른 파형도, 제3도 중 (3B)도는 입력신호에 대한 대칭 및 비대칭 파형을 나타낸 예시도.1 is a circuit diagram of an embodiment according to the present invention, FIG. 2 is an operation flowchart for determining an optimum laser power of the microcomputer 5 according to FIG. 1, FIG. 3A is a waveform diagram according to FIG. FIG. 3B is an exemplary diagram showing symmetrical and asymmetrical waveforms for an input signal.

Claims (5)

기록 가능한 광기록 재생장치에 있어서, 상기 장치의 광픽업으로부터 재생된 RF신호의 직류성분을 소정주기로 디지탈 변환하기 위한 변환수단과, 상기 변환수단의 디지탈 신호를 상기 주기별로 저장하고, 인가되는 코드 데이타의 ID번호에 따라 상기 저장된 신호의 매칭정도를 분석하여 레이저 파워 결정 데이타를 출력하기 위한 파워 결정수단으로 구성됨을 특징으로 하는 최적 레이저 파워 결정회로.A recordable optical recording and reproducing apparatus, comprising: conversion means for digitally converting a direct current component of an RF signal reproduced from an optical pickup of the apparatus at a predetermined cycle, and storing the digital signal of the conversion means for each cycle and applying code data And a power determining means for analyzing the matching degree of the stored signals according to the ID number of the circuit and outputting the laser power determination data. 제1항에 있어서, 상기 변환수단의 디지탈 변환에 대한 샘플링 주기는 1ATIP 프레임 구간에 해당되는 시간임을 특징으로 하는 최적 레이저 파워 결정회로.The optimal laser power determination circuit according to claim 1, wherein the sampling period for the digital conversion of the conversion means is a time corresponding to a 1ATIP frame period. 제1항에 있어서, 상기 RF신호의 직류성분을 디지탈 변환하기에 적당하도록 충분히 증폭하기 위한 증폭기를 더 구비한 것을 특징으로 하는 최적 레이저 파워 결정히로.2. The determination laser according to claim 1, further comprising an amplifier for sufficiently amplifying the DC component of the RF signal to be suitable for digital conversion. 제1항에 있어서, 상기 코드 데이타가 서브큐 코드임을 특징으로 하는 최적 레이저 파워 결정회로.The optimal laser power determining circuit according to claim 1, wherein the code data is a sub cue code. 기록 가능한 광기록 재생 장치의 레이저 파워 결정방법에 있어서, 기준 레이저 파워 신호를 리드인 에리어로부터 리드하고 카운트 에리어를 리드하여 테스트 에리어의 해당 파티션을 찾는 제1과정과, 상기 제1과정에서 테스트 에리어의 파티션로부터 찾은 다수의 테스트 레이저 파워와 미리 설정된 EFM패턴을 각기 ATIP 프레임에 대응시켜 기록하여 이에 따른 해당 ID번호를 기록하는 제2과정과, 상기 제2과정에서 기록된 파티션을 제생하며 상기 장치의 광픽업으로부터 인가된 RF신호의 디지탈 변환된 데이타와 상기 1ATIP 프레임씩의 해당 ID번호를 저장하는 제3과정과, 상기 제3과정의 저장된 데이타를 분석하여 레이저 파워 데이타를 결정하고 카우트 에리어에 기록하는 제4과정으로 이루어짐을 특징으로 하는 레이저 파워 결정방법.A method of determining the laser power of a recordable optical recording / reproducing apparatus, the method comprising: a first step of reading a reference laser power signal from a lead-in area and a count area to find a corresponding partition of the test area; A second process of recording a plurality of test laser powers and preset EFM patterns found from the partitions in correspondence with ATIP frames and recording corresponding ID numbers; and generating a partition recorded in the second process. A third process of storing the digitally converted data of the RF signal applied from the pickup and the corresponding ID number for each 1 ATIP frame; and analyzing the stored data of the third process to determine the laser power data and to record in the count area. Laser power determination method comprising the fourth step. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920007796A 1992-05-08 1992-05-08 Circuit and Method for Laser Power Determination of Optical Recording & Reproducing Equipment Expired - Fee Related KR0183039B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920007796A KR0183039B1 (en) 1992-05-08 1992-05-08 Circuit and Method for Laser Power Determination of Optical Recording & Reproducing Equipment

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Application Number Priority Date Filing Date Title
KR1019920007796A KR0183039B1 (en) 1992-05-08 1992-05-08 Circuit and Method for Laser Power Determination of Optical Recording & Reproducing Equipment

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KR930023950A true KR930023950A (en) 1993-12-21
KR0183039B1 KR0183039B1 (en) 1999-04-15

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100267982B1 (en) * 1997-03-03 2000-10-16 구자홍 Recording power modulation circuit
KR100320692B1 (en) * 1997-08-04 2002-03-08 마찌다 가쯔히꼬 Reproducign light quantity control method for optical memory device, and reproducing light quantity control device, and optical recording medium

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100267982B1 (en) * 1997-03-03 2000-10-16 구자홍 Recording power modulation circuit
KR100320692B1 (en) * 1997-08-04 2002-03-08 마찌다 가쯔히꼬 Reproducign light quantity control method for optical memory device, and reproducing light quantity control device, and optical recording medium
US6392970B1 (en) 1997-08-04 2002-05-21 Sharp Kabushiki Kaisha Reproducing light quantity control method for optical memory device, and reproducing light quantity control device, and optical recording medium

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