KR900008888Y1 - Automatic switch transferring circuit of analog or digital output for laser disk player - Google Patents
Automatic switch transferring circuit of analog or digital output for laser disk player Download PDFInfo
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- KR900008888Y1 KR900008888Y1 KR2019860019352U KR860019352U KR900008888Y1 KR 900008888 Y1 KR900008888 Y1 KR 900008888Y1 KR 2019860019352 U KR2019860019352 U KR 2019860019352U KR 860019352 U KR860019352 U KR 860019352U KR 900008888 Y1 KR900008888 Y1 KR 900008888Y1
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10009—Improvement or modification of read or write signals
- G11B20/10037—A/D conversion, D/A conversion, sampling, slicing and digital quantisation or adjusting parameters thereof
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2587—Laser Discs; Optical disc using analog recording
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Abstract
내용 없음.No content.
Description
제 1 도는 본 고안의 블럭도이다.1 is a block diagram of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 중앙처리장치 2 : 버퍼1: CPU 2: Buffer
3 : 표시부 4 : 스위칭부3: display part 4: switching part
5 : 전력증폭기 6 : 릴레이부5: power amplifier 6: relay unit
SR : 릴레이스위치 AS : 아날로그사운드신호SR: Relay switch AS: Analog sound signal
DS : 디지탈사운드신 AO : 오디오출력단자DS: Digital Sound Scene AO: Audio Output Terminal
본 고안은 비디오디스크/콤팩트디스크겸용 레이저디스크플레이어의 아날로그/디지탈오디오출력 절환회로에 관한 것으로, 특히 간단한 회로로 오디오출력포트를 단일화시켜 줌으로서 잭(jack)을 추가로 사용하지 않고서도 오디오출력이 자동절환되는 레이저디스크플레이어의 아날로그/디지탈오디오출력 자동절환회로에 관한 것이다.The present invention relates to an analog / digital audio output switching circuit of a laser disc player for a video disc / compact disc. In particular, a simple circuit unifies the audio output port so that the audio output can be performed without additional jacks. The present invention relates to an analog / digital audio output automatic switching circuit of a laser disc player which is automatically switched.
일반적인 비디오디스크/콤팩트디스크겸용 레이저디스크플레이어의 오디오출력단자는 아날로그오디오출력단자와 디지탈오디오출력단자로 구별되는 바, 이러한 레이저디스크플레이어를 사용할 때에는 보통 아날로그사운드포트에다 잭을 연결하여 오디오를 듣게 되는데, 이렇게 되면 디지탈사운드가 담긴 비디오디스크나 콤팩트디스크를 사용할 때 아날로그사운드포트에서는 디지탈오디오가 출력되지 않고, 디지탈사운드포트에서만 오디오가 출력되기 때문에 잭을 아날로그사운트포트에서 디지탈사운드포트로 이동시켜 주거나 또하나의 다른잭을 추가로 사용해야 되므로 사용상 매우 불편이 따르고 있었다.Audio output terminal of general video disc / compact disc combined laser disc player is divided into analog audio output terminal and digital audio output terminal. When using this laser disc player, audio is usually connected to an analog sound port by connecting a jack. When you use a video disc or a compact disc with digital sound, you can move the jack from the analog sound port to the digital sound port, because digital audio is not output from the analog sound port, but only from the digital sound port. The extra jack was used, so it was very inconvenient to use.
본 고안은 상기한 종래의 레이저디스크플레이어가 갖고 있는 불편함을 해소시켜 주기 위해 안출된 것으로서, 릴레이와 버퍼 및 스위칭부등을 구비한 간단한 회로구성으로 오디오 출력포트를 단일화시킴으로서 잭을 추가로 사용하지 않고서도 오디오출력이 그 종류에 따라 자동절환되는 레이저디스크플레이어의 아날로그/디지탈오디오출력 자동절환회로를 제공하고자 함에 그 목적이 있다.The present invention was devised to solve the inconveniences of the conventional laser disc player described above, and a single circuit configuration including a relay, a buffer, and a switching unit is used to unify the audio output port without additionally using a jack. Another object of the present invention is to provide an analog / digital audio output automatic switching circuit of a laser disc player whose audio output is automatically switched according to its type.
이하 본 고안의 구성 및 작용, 효과를 예시도면에 의거하여 상세히 설명하면 다음과 같다.Hereinafter, the configuration, operation, and effects of the present invention will be described in detail with reference to the accompanying drawings.
본 고안은 중앙처리장치(1)를 구비하고 있는 오디오디스크/콤팩트디스크겸용 레이저디스크플레이어에 있어서, 상기 중앙처리장치(1)의 단자(D)로부터 출력되는 오디오신호가 디지탈신호인 경우에 출력신호를 감쇄없이 완충시켜 주게 되는 버퍼(2)와, 상기 버퍼(2)로부터의 출력신호의 디지탈신호임을 나타내주는 표시부(3), 상기 버퍼(2)로부터의 출력신호가 디지탈신호일 경우에 스위칭되어 일정한 레벨의 출력신호를 전력증폭기(5)로 출력시켜 주는 스위칭부(4), 상기 스위칭부(4)로부터 입력되는 신호를 증폭하여 릴레이부(6)를 구동시켜주게되는 전력증폭기(5) 및, 상기 전력증폭기(5)의 출력 신호에 따라 릴레이스위치(SR)를 절환시켜 아날로그나 디지탈사운드 신호를 오디오 출력단(AO)으로 출력하게 되는 릴레이부(6)로 구성되어 있다.The present invention is an audio disc / compact disc combined laser disc player having the central processing unit 1, wherein the output signal is output when the audio signal output from the terminal D of the central processing unit 1 is a digital signal. The buffer 2 which buffers the signal without attenuation, the display unit 3 indicating that it is a digital signal of the output signal from the buffer 2, and the output signal from the buffer 2 are switched when the digital signal is constant. A switching unit 4 for outputting a level output signal to the power amplifier 5, a power amplifier 5 for driving the relay unit 6 by amplifying a signal input from the switching unit 4, The relay unit 6 is configured to switch the relay switch SR according to the output signal of the power amplifier 5 to output an analog or digital sound signal to the audio output terminal AO.
미설명 부호 AS, DS는 각각 아날로그 및 디지탈사운드신호, AO는 오디오출력단자를 나타낸다.Reference numerals AS and DS denote analog and digital sound signals, and AO denote audio output terminals, respectively.
제 1 도는 상기와 같이 구성된 본 고안의 블록도로서, 오디오신호가 아날로그신호인 비디오디스크를 사용하게 되는 때에는 마이크로컴퓨터에 있는 중앙처리장치(1)의 단자(D)로부터 아무런 신호도 출력되지 않게 되고, 그에 따라 버퍼(2)로부터 표시부(3) 및 스위칭부(4)로 출력되는 신호도 없게 되므로 레이저디스크플레이어의 전면 판넬에 있는 표시부(3)는 구동되지 않게 됨과 더불어 스위칭부(4)도 작동하지 않게되어 스위칭부(4)에서 출력되어 전력증폭기(5)를 통해 릴레이부(6)로 인가되는 신호가 없게 된다. 따라서 릴레이부(6)의 릴레이스위치(SR)는 접점(b)에 접속되어 아날로그사운드신호(AS)가 릴레이스위치(SR)를 통해 오디오출력단자(AO)로 출력되게 된다.1 is a block diagram of the present invention configured as described above, when an audio signal uses a video disc that is an analog signal, no signal is output from the terminal D of the central processing unit 1 in the microcomputer. Therefore, since there is no signal output from the buffer 2 to the display unit 3 and the switching unit 4, the display unit 3 on the front panel of the laser disc player is not driven and the switching unit 4 also operates. There is no signal output from the switching unit 4 and applied to the relay unit 6 through the power amplifier 5. Accordingly, the relay switch SR of the relay unit 6 is connected to the contact b so that the analog sound signal AS is output to the audio output terminal AO through the relay switch SR.
이와는 달리 콤팩트디스크나 비디오디스크의 오디오신호가 디지탈신호인 경우에는 마이크로컴퓨터에 있는 중앙처리장치(1)의 단자(D)로부터 출력되는 신호가 버퍼(2)를 통해 표시부(3)와 스위칭부(4)로 인가되고, 그에 따라 표시부(3)가 구동되어 오디오신호가 디지탈신호임을 나타내게 됨과 더불어 스위칭부(4)가 작동되어 일정한 레벨의 출력신호가 전력증폭기(5)로 인가된다.On the other hand, when the audio signal of the compact disc or the video disc is a digital signal, the signal output from the terminal D of the central processing unit 1 of the microcomputer is output via the display unit 3 and the switching unit ( 4), the display unit 3 is driven to indicate that the audio signal is a digital signal, and the switching unit 4 is operated to apply an output signal of a constant level to the power amplifier 5.
전력증폭기(5)로 인가되는 신호가 증폭되어 릴레이부(6)로 인가됨에 따라 릴레이부(6)의 릴레이스위치(SR)가 접점(a)에 접속되므로 디지탈사운드신호(DS)가 릴레이스위치(SR)를 통해 오디오출력단자(AO)로 출력되게 된다.As the signal applied to the power amplifier 5 is amplified and applied to the relay unit 6, the relay switch SR of the relay unit 6 is connected to the contact point a, so that the digital sound signal DS is connected to the relay switch ( The SR is output to the audio output terminal AO.
상기한 바와 같이 작용 하는 본 고안은 릴레이와 버퍼 및 스위칭부등을 구비한 간단한 회로구성으로 오디오출력포트를 단일화 함으로써 잭을 추가로 사용하지 않고서도 오디오 출력을 자동절환할 수 있는 장점이 있다.The present invention, which operates as described above, has the advantage of automatically switching the audio output without additional jacks by unifying the audio output port with a simple circuit configuration including a relay, a buffer, and a switching unit.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019860019352U KR900008888Y1 (en) | 1986-12-04 | 1986-12-04 | Automatic switch transferring circuit of analog or digital output for laser disk player |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019860019352U KR900008888Y1 (en) | 1986-12-04 | 1986-12-04 | Automatic switch transferring circuit of analog or digital output for laser disk player |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR880013432U KR880013432U (en) | 1988-08-30 |
| KR900008888Y1 true KR900008888Y1 (en) | 1990-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019860019352U KR900008888Y1 (en) | 1986-12-04 | 1986-12-04 | Automatic switch transferring circuit of analog or digital output for laser disk player |
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| Country | Link |
|---|---|
| KR (1) | KR900008888Y1 (en) |
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1986
- 1986-12-04 KR KR2019860019352U patent/KR900008888Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR880013432U (en) | 1988-08-30 |
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