KR950009630A - Door Release Lock for Compact Disc Players - Google Patents
Door Release Lock for Compact Disc Players Download PDFInfo
- 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
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- Feeding And Guiding Record Carriers (AREA)
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
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)
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 |
Family
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)
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 |
-
1993
- 1993-09-06 KR KR1019930017843A patent/KR950009630A/en not_active Application Discontinuation
Cited By (3)
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |