KR940024706A - Tilt offset automatic adjuster - Google Patents

Tilt offset automatic adjuster Download PDF

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Publication number
KR940024706A
KR940024706A KR1019930005703A KR930005703A KR940024706A KR 940024706 A KR940024706 A KR 940024706A KR 1019930005703 A KR1019930005703 A KR 1019930005703A KR 930005703 A KR930005703 A KR 930005703A KR 940024706 A KR940024706 A KR 940024706A
Authority
KR
South Korea
Prior art keywords
tilt offset
tracking error
offset adjustment
digital
tilt
Prior art date
Application number
KR1019930005703A
Other languages
Korean (ko)
Other versions
KR950003177B1 (en
Inventor
이수영
Original Assignee
이헌조
주식회사 금성사
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Filing date
Publication date
Application filed by 이헌조, 주식회사 금성사 filed Critical 이헌조
Priority to KR1019930005703A priority Critical patent/KR950003177B1/en
Publication of KR940024706A publication Critical patent/KR940024706A/en
Application granted granted Critical
Publication of KR950003177B1 publication Critical patent/KR950003177B1/en

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    • 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers

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  • Optical Recording Or Reproduction (AREA)

Abstract

본 발명은 MLP 시스템에 있어서, 광학 기구적인 틸트에러의 영점과 전기적인에러의 영점의 차이에 의한 틸트오프셋을 트랙킹에러의 진폭크기를 이용하여 디지탈적으로 자동조정하고자한 틸트오프셋 자동조정장치에 관한것으로서, 이러한 본 발명의 목적은 픽업결합체내의 발광다이오드 발광전압에 따라 트랙킹에러를 검출하는 트랙킹에러 검출수단과, 상기 트랙킹에러 검출수단에서 얻어진 값을 검색하고 상기 검색한 값중 트랙킹에러가 최대로 되는 값을 찾아 이를 메모리부에 저장시키고 틸트오프셋 조정신호를 출력하는 마이콤과, 상기 마이콤에서 출력된 디지탈 틸트오프셋 조정신호를 아날로그 신호로 변환시키는 디지탈/아날로그 변환 수단과, 상기 디지탈/아날로그 변환수단에서 얻어진 값에 따라 틸트오프셋 조정하는 틸트오프섹 조정수단을 구비함으로써 달성된다.The present invention relates to a tilt offset automatic adjustment device for digitally automatically adjusting a tilt offset caused by a difference between a zero point of an optical instrument and a zero point of an electrical error using an amplitude size of a tracking error. As an object of the present invention, a tracking error detecting means for detecting a tracking error in accordance with a light emitting voltage of a light emitting diode in a pickup assembly, and a value obtained by the tracking error detecting means is searched and the tracking error is maximized. A microcomputer that finds a value and stores it in a memory unit and outputs a tilt offset adjustment signal, digital / analog conversion means for converting the digital tilt offset adjustment signal output from the micom into an analog signal, and obtained by the digital / analog conversion means. Tilt offset section adjusting means for adjusting the tilt offset according to the value It is accomplished by having.

Description

틸트오프셋 자동조정장치Tilt offset automatic adjuster

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

제 5도는 본 발명 틸트오프셋 자동조정장치 회로도, 제 6도는 제 5도의 마이콤동작을 설명하기 위한 흐름도.5 is a circuit diagram of the tilt offset automatic adjustment device of the present invention, and FIG. 6 is a flowchart for explaining the microcomputer operation of FIG.

Claims (2)

픽업결합체내의 발광다이오드 발광전압에 따라 트랙킹에러를 검출하는 트랙킹에러 검출수단과, 상기트랙킹에러 검출수단에서 얻어진 값을 검색하고 상기 검색한 값중 트랙킹에러가 최대로 되는 값을 찾아 이를 메모리부에 저장시키고 틸트오프셋 조정신호를 출력하는 마이콤과, 상기 마이콤에서 출력된 디지탈 틸트오프셋 조정신호를 아날로그신호로 변환시키는 디지탈/아날로그 변환 수단과, 상기 디지탈/아날로그 변환수단에서 얻어진 값에 따라 틸트오프셋을 조정하는 틸트오프셋 조정수단을 포함하여 된 것을 특징으로하는 틸트오프셋 조정장치.A tracking error detecting means for detecting a tracking error according to the light emitting diode light emitting voltage in the pick-up assembly, a value obtained by the tracking error detecting means is searched, and a value which maximizes a tracking error among the searched values is stored in a memory unit And a tilt offset adjustment according to a value obtained by the digital / analog conversion means, and a microcomputer for outputting a tilt offset adjustment signal, a digital / analog conversion means for converting the digital tilt offset adjustment signal output from the micom to an analog signal. Tilt offset adjustment device comprising a tilt offset adjustment means. 제 1항에 있어서, 틸트오프셋 조정수단은 제 1수광소자로부터 수광된 저압값과 제 2수광소자로부터 수광된 전압값과 상기 D/A변환수단에서 얻어진 전압값을 감산한 전압값과의 차값을 소정레벨 증폭시켜 틸트오프셋조정값으로 출력함을 특징으로한 틸트오프셋조정장치.2. The tilt offset adjusting means according to claim 1, wherein the tilt offset adjusting means determines a difference value between a low voltage value received from the first light receiving element, a voltage value received from the second light receiving element and a voltage value obtained by subtracting the voltage value obtained from the D / A converting means. A tilt offset adjustment device characterized in that amplified by a predetermined level and output as a tilt offset adjustment value. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930005703A 1993-04-06 1993-04-06 Tilting offset auto controller KR950003177B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930005703A KR950003177B1 (en) 1993-04-06 1993-04-06 Tilting offset auto controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930005703A KR950003177B1 (en) 1993-04-06 1993-04-06 Tilting offset auto controller

Publications (2)

Publication Number Publication Date
KR940024706A true KR940024706A (en) 1994-11-18
KR950003177B1 KR950003177B1 (en) 1995-04-01

Family

ID=19353519

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930005703A KR950003177B1 (en) 1993-04-06 1993-04-06 Tilting offset auto controller

Country Status (1)

Country Link
KR (1) KR950003177B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000026832A (en) * 1998-10-23 2000-05-15 구자홍 Method for controlling tilt
KR100403084B1 (en) * 2001-02-20 2003-10-30 엘지전자 주식회사 Driving control method for radial tilting of optical pick-up acatuator
KR100693679B1 (en) * 2000-03-30 2007-03-09 엘지전자 주식회사 Method and apparatus for reproducing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000026832A (en) * 1998-10-23 2000-05-15 구자홍 Method for controlling tilt
KR100693679B1 (en) * 2000-03-30 2007-03-09 엘지전자 주식회사 Method and apparatus for reproducing
KR100403084B1 (en) * 2001-02-20 2003-10-30 엘지전자 주식회사 Driving control method for radial tilting of optical pick-up acatuator

Also Published As

Publication number Publication date
KR950003177B1 (en) 1995-04-01

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