KR960035472A - Focusing / Tracking Control of Optical Pickup - Google Patents

Focusing / Tracking Control of Optical Pickup Download PDF

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Publication number
KR960035472A
KR960035472A KR1019950007424A KR19950007424A KR960035472A KR 960035472 A KR960035472 A KR 960035472A KR 1019950007424 A KR1019950007424 A KR 1019950007424A KR 19950007424 A KR19950007424 A KR 19950007424A KR 960035472 A KR960035472 A KR 960035472A
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KR
South Korea
Prior art keywords
focusing
tracking
tracking error
optical pickup
light receiving
Prior art date
Application number
KR1019950007424A
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Korean (ko)
Inventor
김연옥
Original Assignee
배순훈
대우전자 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.)
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Publication date
Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019950007424A priority Critical patent/KR960035472A/en
Publication of KR960035472A publication Critical patent/KR960035472A/en

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Abstract

본 발명는 광픽업장치의 포커싱/트랙킹 조정장치에 관한 것으로, 정보기록매체에 기록된 정보를 광학적으로 독취하기 위한 수광소자(10)를 포함하는 광픽업장치(10A)에서 상기 수광소자(10)의 수광영역에서 얻어지는 포커싱/트랙킹에러를 자동으로 조정하기 위한 에러보상데이터를 생성하는 포커싱/트랙킹조정부(30)와, 그 포커싱/트랙킹 조정부(30)에서 생성된 에러보상데이터를 기초로 광픽업구동계(50)에 대한 에러보상전압을 생성하는 포커싱/트랙킹에러보상부(40)를 구비하여 구성되고, 포커싱/트랙킹조정부(30)는 상기 수광소자(10)의 수광영역에서 검출된 현재의 포커싱/트랙킹에러신호와 그 현재의 포커싱/트랙킹에러신호에서DC레벨제거소자(34)에 의해 DC레벨이 제거된 포커싱/트랙킹에러신호의 차이를 디지탈변환출력하는 데이터변환부(36)와, 그포커싱/트랙킹에러의 디지탈변환데이터에 의해 지정 가능한 포커싱/트랙킹에러보상 데이터가 테이블화되어 저장된 포커싱/트랙킹에러보상테이블(38)로 구성되어, 광픽업장치(10A)의 포커싱/트랙킹 조정작업이 자동으로 실행되도록 한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for adjusting focusing / tracking of an optical pickup apparatus, wherein the optical pickup apparatus (10A) includes a light receiving element (10) for optically reading information recorded on an information recording medium. Focusing / tracking adjustment unit 30 for generating error compensation data for automatically adjusting the focusing / tracking error obtained in the light-receiving area, and based on the error compensation data generated in the focusing / tracking adjustment unit 30, And a focusing / tracking error compensator 40 for generating an error compensating voltage for 50, wherein the focusing / tracking adjusting part 30 is the current focusing / tracking detected in the light receiving region of the light receiving element 10. A data converter 36 for digitally converting the difference between the error signal and the current focusing / tracking error signal and the focusing / tracking error signal from which the DC level is removed by the DC level removing element 34; The focusing / tracking error compensation table 38 stores and stores the focusing / tracking error compensation data that can be specified by the digital conversion data of the syncing / tracking error, and the focusing / tracking adjustment operation of the optical pickup device 10A is automatically performed. Is to be run.

Description

광픽업장치의 포커싱/트랙킹 조정장치Focusing / Tracking Control of Optical Pickup

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

제3도는 제2도에 도시된 포커싱/트랙킹조정부의 상세 구성을 나타낸 도면이다.FIG. 3 is a diagram showing the detailed configuration of the focusing / tracking adjustment unit shown in FIG.

Claims (2)

정보기록매체에 기록된 정보를 광학적으로 독취하기 위한 수광소자(10)를 포함하는 광픽업장치에서 상기 수광소자의 수광영역에서 얻어지는 포커싱/트랙킹에러를 자동으로 조정하기 위한 에러보상데이터를 생성하는 포커싱/트랙킹 조정부와(30), 그포커싱/트랙킹조정부(30)에서 생성된 에러보상데이터를 기초로 광픽업구동계(50)에 에러보상전압을 제공하는 포커싱/트랙킹에러보상부(40)를 구비하여 구성된 것을 특징으로 하는 광픽업장치의 포커싱/트랙킹 조정장치.Focusing for generating error compensation data for automatically adjusting a focusing / tracking error obtained in the light receiving region of the light receiving element in an optical pickup apparatus including a light receiving element 10 for optically reading information recorded on the information recording medium. And a tracking / tracking error compensator 40 which provides an error compensation voltage to the optical pickup driving system 50 based on the error compensating data generated by the focusing / tracking adjusting part 30 and the focusing / tracking adjusting part 30. Focusing / tracking adjustment device of the optical pickup device characterized in that configured. 제1항에 있어서, 상기 포커싱/트랙킹 조정부(30)는 상기 수광소자(10)의 수광영역에서 검출된 현재의 포커싱/트랙킹에러신호가 저항(32)을 매개하여 일측 입력단에 입력됨과 더불어 다른 단에는 그 현재의 포커싱/트랙킹에러신호에서 DC레벨제거소자(34)에 의해DC레벨이 제거된 포커싱/트랙킹에러신호가 입력되어 그 차이를 디지탈변환출력하는 데이터변환회로부(36)와, 그 포커싱/트랙킹에러의 디지탈변환데이터에 의해 지정 가능한 포커싱/트랙킹에러보상 데이터가 테이블화되어 저장된 포커싱/트랙킹에러보상테이블(38)로 구성된 것을 특징으로 하는 광픽업장치의 포커싱/트랙킹 조정장치.According to claim 1, The focusing / tracking adjustment unit 30 is the current focusing / tracking error signal detected in the light receiving region of the light receiving element 10 is input to one input terminal via the resistor 32 and the other stage In the current focusing / tracking error signal, a focusing / tracking error signal from which the DC level has been removed by the DC level removing element 34 is input, and the data conversion circuit section 36 for digitally converting the difference and the focusing / tracking error signal A focusing / tracking adjusting device for an optical pickup apparatus, comprising: a focusing / tracking error compensation table (38) in which focusing / tracking error compensation data that can be designated by digital conversion data of a tracking error is tabled and stored. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950007424A 1995-03-31 1995-03-31 Focusing / Tracking Control of Optical Pickup KR960035472A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950007424A KR960035472A (en) 1995-03-31 1995-03-31 Focusing / Tracking Control of Optical Pickup

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950007424A KR960035472A (en) 1995-03-31 1995-03-31 Focusing / Tracking Control of Optical Pickup

Publications (1)

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KR960035472A true KR960035472A (en) 1996-10-24

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KR1019950007424A KR960035472A (en) 1995-03-31 1995-03-31 Focusing / Tracking Control of Optical Pickup

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KR (1) KR960035472A (en)

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