KR950025664A

KR950025664A - Disc Skew Compensator

Info

Publication number: KR950025664A
Application number: KR1019940003685A
Authority: KR
Inventors: 김연옥
Original assignee: 배순훈; 대우전자 주식회사
Priority date: 1994-02-28
Filing date: 1994-02-28
Publication date: 1995-09-18

Abstract

본 발명은 광픽업의 수광소자에 기울어짐에러치를 검출할 수 있는 포토다이오드를 추가로 설치시킴으로써 별도의 틸트센서를 사용하지 않고서도 디스크의 기울어짐에 따른 보정이 가능하도록 하기 치한 디스크기울어짐 보정장치에 관한 것으로, 정보가 기록된 디스크(2)로부터 정보독출은 함과 더불어 디스크(2)의 기울어짐에 대한 기울어짐에러신호를 검출하기 위한 복수의 수광소자(D,E)가 갖추어진 광학수단(10)과, 상기 복수의 수광소자(D,E)에 집광되는 반사광의 양을 검출하는 광량검출부(20), 상기 광량검출부(20)에서 출력되는 전압레벨은 비교하여 기울어짐에러신호를 출력하는 비교/증폭부(30) 및, 상기 비교/증폭부(30)에서 출력되는 기울어짐에러신호에 비례하는 기울어짐보상신호를 출력시켜 틸트메카니즘(50)에 의해 정확한 기울어짐보정이 이루어지도록 제어하는 제어부(40)로 구성된 것이다.The present invention further provides a photodiode capable of detecting an inclination error in a light pick-up element of an optical pickup, thereby making it possible to correct the disc inclination without using a separate tilt sensor. An optical means equipped with a plurality of light receiving elements (D, E) for reading information from a disk (2) on which information is recorded and for detecting a tilt error signal with respect to the tilt of the disk (2). (10) compares the voltage level output from the light amount detection unit 20 and the light amount detection unit 20 for detecting the amount of reflected light focused on the plurality of light receiving elements D and E, and outputs a tilted error signal. A tilt compensation signal proportional to the tilt error signal outputted from the comparison / amplification unit 30 and the tilt / error unit 30 is outputted, and the tilt mechanism 50 corrects the tilt correction. It is comprised of controller 40 to control such that air.

Description

Disc Skew Compensator

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

제3도는 제1도에 도시된 틸트센서(Tilt Sensor)의 내부구조를 도시한 단면도,3 is a cross-sectional view showing the internal structure of the tilt sensor shown in FIG.

제4도는 본 발명의 일실시예에 따른 디스크기울어짐 보정장치에 적용되는 블럭구성도이다.4 is a block diagram of a disk tilt correction apparatus according to an embodiment of the present invention.

Claims

Optical means (10) equipped with a plurality of light receiving elements (D, E) for reading out information from the disk (2) on which information is recorded and detecting tilt error signals for tilting of the blowing disk (2); And a comparison / amplification for outputting a tilt error signal by comparing a voltage level output from the light amount detection unit 20 and a voltage level output from the light amount detection unit 20 to detect the amount of reflected light focused on the plurality of light receiving elements D and E. Control unit 40 and the control unit 40 for controlling the accurate tilt correction by the tilt mechanism 50 by outputting a tilt compensation signal proportional to the tilt error signal output from the comparison / amplification unit 30 Disc tilt correction device, characterized in that consisting of.

※ Note: The disclosure is based on the initial application.