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 PDFInfo
- 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
- Authority
- KR
- South Korea
- Prior art keywords
- laser power
- data
- signal
- optical recording
- power determination
- Prior art date
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Classifications
-
- 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
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
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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019920007796A KR0183039B1 (en) | 1992-05-08 | 1992-05-08 | Laser power decision circuit and method for optical record/reproducing apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019920007796A KR0183039B1 (en) | 1992-05-08 | 1992-05-08 | Laser power decision circuit and method for optical record/reproducing apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
KR930023950A true KR930023950A (en) | 1993-12-21 |
KR0183039B1 KR0183039B1 (en) | 1999-04-15 |
Family
ID=19332851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019920007796A KR0183039B1 (en) | 1992-05-08 | 1992-05-08 | Laser power decision circuit and method for optical record/reproducing apparatus |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0183039B1 (en) |
Cited By (2)
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 |
-
1992
- 1992-05-08 KR KR1019920007796A patent/KR0183039B1/en not_active IP Right Cessation
Cited By (3)
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 |
Also Published As
Publication number | Publication date |
---|---|
KR0183039B1 (en) | 1999-04-15 |
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