KR950009630A - Door Release Lock for Compact Disc Players - Google Patents

Door Release Lock for Compact Disc Players Download PDF

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Publication number
KR950009630A
KR950009630A KR1019930017843A KR930017843A KR950009630A KR 950009630 A KR950009630 A KR 950009630A KR 1019930017843 A KR1019930017843 A KR 1019930017843A KR 930017843 A KR930017843 A KR 930017843A KR 950009630 A KR950009630 A KR 950009630A
Authority
KR
South Korea
Prior art keywords
compact disc
spindle motor
signal
solenoid valve
door
Prior art date
Application number
KR1019930017843A
Other languages
Korean (ko)
Inventor
김규승
Original Assignee
이종수
금성알프스전자 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.)
Filing date
Publication date
Application filed by 이종수, 금성알프스전자 주식회사 filed Critical 이종수
Priority to KR1019930017843A priority Critical patent/KR950009630A/en
Publication of KR950009630A publication Critical patent/KR950009630A/en

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Abstract

본 발명은 콤팩트디스크 플레이어에서 플레이 도중 이젝트시 스핀들모터에 전기적으로 브레이크를 걸어 콤팩트디스크의 회전이 정지된 상태에서 도어를 오픈시키므로써, 콤팩트디스크의 손상발생 및 파손을 방지하여 이젝트 시킬 수 있으므로 인해 제품의 효율성 및 신뢰성을 대폭 향상시킨 것이다.The present invention is to open the door in the state in which the rotation of the compact disc is stopped by electrically brake to the spindle motor during ejection during play in the compact disc player, it can be ejected by preventing damage and damage of the compact disc Significantly improved efficiency and reliability.

이를 위해, 본 발명은 기능 전환시의 신호를 입력하기 위한 키입력부(1)와, 콤팩트 디스크(2)를 회전시키는 스핀들 모터의 온오프를 제어하는 스핀들모터 제어부(3)와, 상기 콤팩트디스크(2)의 회전속도에 비례한 RF신호를 발생하는 RF신호 발생부(4)와, 상기 RF신호 발생부(4)의 아날로그 RF신호를 디지탈로 변환하여 출력하는파형정형부(5)와, 상기 파형정형부(5)의 출력으로 콤팩트디스크(2)의 회전속도 변화에 따른 주파수 변화를 검출하는 PLL(6)와, 상기 콤팩트디스크(2)의 이젝트시 솔레노이드밸브(13)의 작동을 제어하는 솔레노이드 구동부(14)와, 상기 PLL(6)의 출력에 의해 스핀들 모터의 회전상태를 인식하여 스핀들 모터의 회전정지시 솔레노이드 구동부(14)를 온시켜 솔레노이드밸브(13)에 의해 콤팩트디스크(2)가 이젝트될 수 있도록 제어하는 제어부(15)로 구성된 콤팩트디스크 플레이어의 도어 해제 안전장치이다.To this end, the present invention provides a key input unit (1) for inputting a signal at the time of function switching, a spindle motor control unit (3) for controlling on / off of the spindle motor for rotating the compact disc (2), and the compact disc ( An RF signal generator 4 for generating an RF signal proportional to the rotational speed of 2), a waveform shaping part 5 for converting the analog RF signal of the RF signal generator 4 into digital and outputting the digital signal; The output of the waveform shaping section 5 controls the operation of the solenoid valve 13 when the PLL 6 detects a change in frequency according to the change in the rotational speed of the compact disc 2 and the compact disc 2 is ejected. The solenoid drive unit 14 and the output of the PLL 6 recognize the rotational state of the spindle motor, and turn on the solenoid drive unit 14 when the spindle motor stops rotating. To the control unit 15 for controlling to be ejected It generated a door off safety device of a compact disc player.

Description

콤팩트디스트 플레이어의 도어 해제 안전장치Door unlocking safety device for compact disc player

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

제2도는 본 발명의 도어 작동 상태를 나타낸 종단면도로서, (가)는 플레이시의 도어가 클로스된 상태도 (나)는 이젝트시의 도어가 오픈된 상태도,2 is a longitudinal sectional view showing a door operating state of the present invention, (a) is a state in which the door is closed during play (b) is a state in which the door is opened when ejecting,

제3도는 본 발명은 나타낸 하드웨어 구성도,3 is a hardware diagram showing the present invention,

제4도는 본 발명의 작동상태를 나타낸 흐름도.4 is a flow chart showing an operating state of the present invention.

Claims (2)

기능 전환시의 신호를 입력하기 위한 키입력부(1)와, 콤팩트디스크(2)를 회전시키는 스핀들 모터의 온오프를 제어하는 스핀들모터 제어부(3)와, 상기 콤팩트디스크(2)의 회전속도에 비례한 RF신호를 발생하는 RF신호 발생부(4)와, 상기 RF신호 발생부(4)의 아날로그 RF신호를 디지탈로 변환하여 출력하는 파형정형부(5)와, 상기 파형정형부(5)의 출력으로 콤팩트디스크(2)의 회전속도 변화에 따른 주파수 변화를 검출하는 PLL(6)과, 상기 콤팩트디스크(2)의 이젝트시 솔레노이드밸브(13)의 작동을 제어하는 솔레노이드 구동부(14)와, 상기 PLL(6)의 출력에 의해 스핀들 모터의 회전상태를 인식하여 스핀들 모터의 회전정지시 솔레노이드 구동부(14)를 온시켜 솔레노이드밸브(13)에 의해 콤팩트디스크(2)가 이젝트될 수 있도록 제어하는 제어부(15)로 구성된 것을 특징으로 하는 콤팩트디스크 플레이어의 도어 해제 안전장치.The key input unit 1 for inputting a signal at the time of function switching, the spindle motor control unit 3 for controlling the on / off of the spindle motor for rotating the compact disc 2, and the rotational speed of the compact disc 2 An RF signal generator 4 for generating a proportional RF signal, a waveform shaper 5 for converting an analog RF signal of the RF signal generator 4 into a digital signal, and a waveform shaper 5 PLL (6) for detecting the frequency change according to the change in the rotational speed of the compact disk (2) by the output of the, and the solenoid drive unit (14) for controlling the operation of the solenoid valve (13) during ejection Recognizing the rotational state of the spindle motor by the output of the PLL (6) to control the compact disk (2) to be ejected by the solenoid valve 13 by turning on the solenoid drive unit 14 when the spindle motor stops rotating Characterized in that consisting of a control unit 15 to Door release lock for compact disc players. 제1항에 있어서, 상기 솔레노이드밸브(13)의 플런저(12)에는 본체(8)에 내장되어 이젝트시 이젝트버튼(7)을 눌러줌에 따라 솔레노이드밸브(13)의 작동에 의해 작동레버(11)를 당겨 도어(9)를 오픈시키도록 된 콤팩트디스크 플레이어의 도어 해제 안전장치.According to claim 1, The plunger 12 of the solenoid valve 13 is built in the main body (8) by operating the solenoid valve 13 by pressing the eject button (7) when ejecting the operating lever (11) Door release lock of the compact disc player which is designed to open the door (9) by ※참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is to be disclosed based on the initial application.
KR1019930017843A 1993-09-06 1993-09-06 Door Release Lock for Compact Disc Players KR950009630A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930017843A KR950009630A (en) 1993-09-06 1993-09-06 Door Release Lock for Compact Disc Players

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930017843A KR950009630A (en) 1993-09-06 1993-09-06 Door Release Lock for Compact Disc Players

Publications (1)

Publication Number Publication Date
KR950009630A true KR950009630A (en) 1995-04-24

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ID=66817931

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930017843A KR950009630A (en) 1993-09-06 1993-09-06 Door Release Lock for Compact Disc Players

Country Status (1)

Country Link
KR (1) KR950009630A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030020027A (en) * 2001-08-29 2003-03-08 주식회사 대우일렉트로닉스 Method for controlling disk tray of disk player
KR100392917B1 (en) * 1999-10-29 2003-07-28 티아크 가부시키가이샤 Disk unit
KR100463443B1 (en) * 2002-06-25 2004-12-23 삼성전기주식회사 Stopping Control Method Of Spindle Motor Of DVD Player

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100392917B1 (en) * 1999-10-29 2003-07-28 티아크 가부시키가이샤 Disk unit
KR20030020027A (en) * 2001-08-29 2003-03-08 주식회사 대우일렉트로닉스 Method for controlling disk tray of disk player
KR100463443B1 (en) * 2002-06-25 2004-12-23 삼성전기주식회사 Stopping Control Method Of Spindle Motor Of DVD Player

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