KR940022530A - Tracking error offset automatic adjustment device - Google Patents

Tracking error offset automatic adjustment device Download PDF

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Publication number
KR940022530A
KR940022530A KR1019930004156A KR930004156A KR940022530A KR 940022530 A KR940022530 A KR 940022530A KR 1019930004156 A KR1019930004156 A KR 1019930004156A KR 930004156 A KR930004156 A KR 930004156A KR 940022530 A KR940022530 A KR 940022530A
Authority
KR
South Korea
Prior art keywords
tracking error
signal
analog
digital
error offset
Prior art date
Application number
KR1019930004156A
Other languages
Korean (ko)
Other versions
KR100263586B1 (en
Inventor
이수영
Original Assignee
이헌조
주시회사 금성사
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.)
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Publication date
Application filed by 이헌조, 주시회사 금성사 filed Critical 이헌조
Priority to KR1019930004156A priority Critical patent/KR100263586B1/en
Publication of KR940022530A publication Critical patent/KR940022530A/en
Application granted granted Critical
Publication of KR100263586B1 publication Critical patent/KR100263586B1/en

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/16—Supporting the heads; Supporting the sockets for plug-in heads
    • G11B21/20—Supporting the heads; Supporting the sockets for plug-in heads while the head is in operative position but stationary or permitting minor movements to follow irregularities in surface of record carrier

Landscapes

  • Optical Recording Or Reproduction (AREA)

Abstract

본 발명의 목적은 멀티레이저 광디스크에 있어서 광학, 기구적인 트랙킹에러의 제로점과 전기적인 트랙킹에러의 제로점의 차이를 트랙킹에러의 크기를 이용하여 자동으로 저장하도록 하는 트랙킹에러 오프셋 자동조정장치에 관한 것으로 이와같은 본 발명의 목적은 제1, 제2포토 다이오드에서 수광되어 변환된 각각의 전기적 신호의 차 비반전 증폭시켜 트랙킹에러를 검출하는 트랙킹에러 검출부와, 상기 트랙킹에러 검출부로 부터 출력된 신호를 디지털 신호로 변환시켜 출력하는 아날로그/디지탈 변환부와, 상기 아날로그/디지탈 변환부로 부터 출력된 신호에 의해 증가된 트랙킹에러 오프셋값중 그라운드에 대칭된 값을 이이프롬에 저장시킨후 외부제어신호에 따라 트랙킹에러 오프셋을 자동으로 조정하는 마이콤과, 상기 마이콤으로 부터 출력된 신호를 아날로그 신호로 변환시켜 제2포토 다이오드에서 수광되어 변환된 전기적 신호를 조정하는 디지털/아날로그 변환부를 구성함으로써 달성되어지는 것이다.SUMMARY OF THE INVENTION An object of the present invention relates to a tracking error offset automatic adjustment apparatus for automatically storing a difference between a zero point of an optical and mechanical tracking error and an electrical tracking error in a multi-laser optical disc using the size of the tracking error. Accordingly, an object of the present invention is to provide a tracking error detection unit for detecting a tracking error by non-inverting and amplifying the difference between the electrical signals received and converted by the first and second photodiodes, and outputting a signal output from the tracking error detection unit. The analog / digital converting unit converts the digital signal and outputs it, and the tracking error offset value increased by the signal output from the analog / digital converting unit is stored symmetrically to the ground in the e-prompt, and according to the external control signal. Micom for automatically adjusting the tracking error offset, and output from the micom This is achieved by constructing a digital / analog converter for converting a signal into an analog signal to adjust an electrical signal received and converted by the second photodiode.

Description

트래킹 에러 오프셋 자동 조정장치Tracking Error Offset Automatic Adjustment

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

제5도는 본 발명 트랙킹에러 오프셋 자동 조정장치,5 is a tracking error offset automatic adjustment device of the present invention,

제6도는 제5도의 설명에 따른 흐름도.6 is a flow chart according to the description of FIG.

Claims (1)

제1, 제2포토 다이오드에서 수광되어 변환된 각각의 전기적 신호의 차 비반전 증폭시켜 트랙킹에러를 검출하는 트랙킹에러 검출수단과, 상기 트랙킹에러 검출수단로부터 출력된 아날로그 신호를 디지털 신호로 변환시켜 출력하는 아날로그/디지탈 변환수단과, 상기 아날로그/디지탈 변환수단으로부터 출력된 신호에 의해 증가된 트랙킹에러 오프셋값중 그라운드에 대칭된 값을 이이프롬에 저장시킨 후 외부제어신호에 따라 트랙킹에러 오프셋을 자동으로 조정하는 마이콤과, 상기 마이콤으로부터 출력된 신호를 아날로그 신호로 변환시켜 제2포토 다이오드에서 수광되어 변환된 전기적 신호를 조정하는 디지털/아날로그 변환수단을 포함하여 된 것을 특징으로 한 트랙킹에러 오프셋 자동조정장치.Tracking error detecting means for detecting a tracking error by non-inverting and amplifying the difference of each electrical signal received and converted by the first and second photodiodes, and converting an analog signal output from the tracking error detecting means into a digital signal and outputting the digital signal. After the analog / digital converting means and the tracking error offset value increased by the signal output from the analog / digital converting means are stored in the e-prompt, the tracking error offset is automatically adjusted according to the external control signal. And a digital / analog conversion means for converting a signal output from the microcomputer to an analog signal to adjust an electrical signal received and converted by the second photodiode. . ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930004156A 1993-03-18 1993-03-18 Automatic adjust apparatus for tracking error offset KR100263586B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930004156A KR100263586B1 (en) 1993-03-18 1993-03-18 Automatic adjust apparatus for tracking error offset

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930004156A KR100263586B1 (en) 1993-03-18 1993-03-18 Automatic adjust apparatus for tracking error offset

Publications (2)

Publication Number Publication Date
KR940022530A true KR940022530A (en) 1994-10-21
KR100263586B1 KR100263586B1 (en) 2000-08-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930004156A KR100263586B1 (en) 1993-03-18 1993-03-18 Automatic adjust apparatus for tracking error offset

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KR (1) KR100263586B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4152256B2 (en) * 2003-05-21 2008-09-17 三洋電機株式会社 Optical disk offset adjustment circuit, integrated circuit, optical disk device, and offset adjustment method

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Publication number Publication date
KR100263586B1 (en) 2000-08-01

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