KR960025697A

KR960025697A - Automatic cleaning device and automatic cleaning control method for optical disc player

Info

Publication number: KR960025697A
Application number: KR1019940033264A
Authority: KR
Inventors: 배문식
Original assignee: 구자홍; Lg 전자주식회사
Priority date: 1994-12-08
Filing date: 1994-12-08
Publication date: 1996-07-20

Abstract

본 발명은 레이저 디스크 플레이어나 콤팩트 디스크 플레이어와같이 디스크에 수록된 정보를 광픽업으로 읽어내는 광디스크 플레이어의 픽업(렌즈)을 자동적으로 클리닝해주는 장치와 그 제어 방법에 관한 것이다.The present invention relates to an apparatus for automatically cleaning a pickup (lens) of an optical disc player, such as a laser disc player or a compact disc player, which reads information contained in a disc by optical pickup and a control method thereof.

종레에 솔(la)이 부착된 클리닝 디스크(l)를 사용하는 경우, 광픽업에 이물질이 과도하게 쌓여있으면 처음부터 기기가 동작하지 않게되어 재생 동작이 이루어지지 않게 되므로 클리닝 디스크(l)를 사용할 수없게 되는 문제점과, 일단 재생이 진행되더라도 클리닝 디스크(l)의 솔(la)이 부착된 위치에서의 서보가 불안정해지기 때문에 재생이 중단되는 경우가 빈발하였고, 따라서 효과적인 픽업 청소가 어렵게 되는 등의 문제점이 있었다.In the case of using a cleaning disk (l) with a brush (la) attached to the bellows, if the foreign matter is excessively accumulated in the optical pickup, the device will not operate from the beginning and playback will not be performed. Even if the regeneration is progressed, the regeneration is frequently stopped because the servo becomes unstable at the position where the sole of the cleaning disc l is attached even after reproducing, and thus, effective pick-up cleaning becomes difficult. There was a problem.

본 발명은 디스크 클램핑 영역(스핀들 모터를 장착하기 위해서 신호가 기록되어 잇지 않은 디스크 중심쪽의 영역)에 솔(4)을 장착하고, 광디스크(2)가 스핀들 모터(5)에 장착되면 트래킹 서보(10)룰 제어하여 광픽업(3)을 디스크(2) 최내주쪽으로 진행시킨 후, 포커스 서보(9)를 제어하여 솔(4)과 접촉하는 방향으로 픽업(3)을 이동시키고, 회전 서보(11)를 제어하여 디스크(2)와 솔(4)을 회전시켜 줌으로써 광픽업(3)을 일정한 시간 동안 청소한 다음 디스크의 리드-인(Lead-In) 영역으로 이동하여 재생 동작을 수행하도록 하여, 매 디스크 사용시마다 픽업 청소가 자동적으로 이루어질 수 있게 한 것이다.The present invention mounts the sole 4 in the disk clamping area (the area near the center of the disk where no signal is recorded for mounting the spindle motor), and when the optical disk 2 is mounted on the spindle motor 5, the tracking servo ( 10. After controlling the optical pickup 3 to the innermost circumference of the disc 2, the focus servo 9 is controlled to move the pickup 3 in the direction of contact with the sole 4, and the rotary servo ( 11) by rotating the disc 2 and the sole 4 to clean the optical pickup 3 for a predetermined time, and then move to the lead-in area of the disc to perform the playback operation. For this reason, pickup cleaning is automatically performed after every disc use.

Description

Automatic cleaning device and automatic cleaning control method for optical disc player

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

제2도는 본 발명의 광 디스크 플레이어의 자동 클리닝 장치 블록 구성도, 제3도는 본 발명의 광 디스크 플레이어의 자동 클리닝 제어 방법의 플로우차트.2 is a block diagram of the automatic cleaning apparatus block of the optical disc player of the present invention, and FIG. 3 is a flowchart of the automatic cleaning control method of the optical disc player of the present invention.

Claims

An optical pickup 3 for reading information stored in the optical disc 2, a brush 4 mounted in the clamping area of the optical disc 2 and contacting the optical pickup 3 when the disc is first mounted, to clean the foreign matter; Spindle motor (5) for rotating the optical disk (2) together with the sole (4), and the optical focus to the optical pickup (3) to read the information contained on the disk and to clean the optical pickup A focus servo 9 for moving the optical pickup 3 in a direction in contact with 4), and controlling the optical pickup 3 to accurately follow the track of the optical disc 2, and for cleaning the optical pickup. Tracking servo 10 for moving (3) to the innermost circumference of the disk equipped with the sole 4, rotation servo 11 for driving the spindle motor 5 forward rotation, and tracking with the focus servo 9 The servo 10 and the rotary servo 11 are controlled to move the optical pickup to the cleaning position, for a fixed time When the cleaning is finished in the read-automatic cleaning apparatus of an optical disc player, it characterized in that a control circuit for controlling able to play to move into the area.

When the optical disc is seated, the tracking servo is controlled to move the optical pickup to the innermost circumference of the disk, and the optical pickup moved at the step is moved to a direction in contact with the sole by controlling the focus servo to move the sole and pickup (lens). And controlling the rotation servo when the sole and the pickup come into contact with each other to rotate and clean the optical disc with the sole.

3. The automatic cleaning control method according to claim 2, further comprising the step of moving the pickup to the lead-in area of the optical disc and playing when cleaning is completed in the step.

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