KR950001711A - Audio playback device for multimedia computer - Google Patents

Audio playback device for multimedia computer Download PDF

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Publication number
KR950001711A
KR950001711A KR1019930010112A KR930010112A KR950001711A KR 950001711 A KR950001711 A KR 950001711A KR 1019930010112 A KR1019930010112 A KR 1019930010112A KR 930010112 A KR930010112 A KR 930010112A KR 950001711 A KR950001711 A KR 950001711A
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KR
South Korea
Prior art keywords
digital
output
computer
analog
multimedia computer
Prior art date
Application number
KR1019930010112A
Other languages
Korean (ko)
Other versions
KR950007130B1 (en
Inventor
박우석
Original Assignee
이헌조
주식회사 금성사
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Publication date
Application filed by 이헌조, 주식회사 금성사 filed Critical 이헌조
Priority to KR1019930010112A priority Critical patent/KR950007130B1/en
Publication of KR950001711A publication Critical patent/KR950001711A/en
Application granted granted Critical
Publication of KR950007130B1 publication Critical patent/KR950007130B1/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/16—Sound input; Sound output

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

본 발명은 멀티 미디어 컴퓨터의 오디오 재생 장치에 관한 것으로, 종래에는 MPEG디코더 칩이 개발되었으나 상용화된 제품이 없을 뿐 아니라 컴퓨터에 적용한 예도 없다. 이러한 점을 감안하여 본 발명에서는 MPEG디코더 칩에 디지탈/아날로그 변환기, 필터 및 디지탈 볼륨 조절기를 접속하여 피시 버스로 입력되는 오디오 데이타를 디코딩한 후 아날로그신호로 변환하여 레벨을 조정하게 구성하였다. 따라서, DAT, CD-ROM 및 하드 디스크에 저장된 데이타를 컴퓨터에서 고음질로 재생할 수 있다.The present invention relates to an audio reproducing apparatus of a multimedia computer. In the related art, an MPEG decoder chip has been developed, but there is no commercialized product, and there is no example applied to a computer. In view of this, in the present invention, a digital / analog converter, a filter, and a digital volume controller are connected to an MPEG decoder chip to decode audio data input through a fish bus, and then convert the analog data into an analog signal to adjust the level. Therefore, data stored in the DAT, CD-ROM, and hard disk can be reproduced in high quality on a computer.

Description

멀티 미디어 컴퓨터의 오디오 재생 장치Audio playback device for multimedia computer

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

제1도는 MPEG시스템의 구성도, 제2도는 제1도에 있어서, 엔코더의 개념도, 제3도는 제1도에 있어서, 디코더의 개념도, 제4도는 본 발명 멀티 미디오 컴퓨터의 오디오 재생 장치 블럭도.1 is a block diagram of an MPEG system, FIG. 2 is a schematic diagram of an encoder, FIG. 3 is a schematic diagram of a decoder, and FIG. 4 is a block diagram of an audio reproducing apparatus of the present invention. .

Claims (1)

발진 주파수(OSC)를 출력시키는 발진부(1)와, 발진부(1)의 출력(OSC)에 따라 피씨 버스로 입력되는 오디오 데이타(DATA)를 메모리(3)에 저장한 후 디코딩하는 디코더(2)와, 이 디코더(2)의 출력(V2)을 클럭(CLK)에 동기되어 아날로그 변환하는디지탈/아날로그 변환부(4)와, 이 디지탈/ 아날로그 변환부(4)의 출력(VL4)(VR4)을 입력받아 고역 성분을 제거하는 저역통과 필터(5)(6)와, 오디오 레벨을 조정하기 위한 제어신호(V8)에 따라 상기 저역 통과 필터(5)(6)의 출력(V5)(V6)레벨을 조정하는 디지탈 볼륨 조성부(7)로 구성함을 특징으로 하는 멀티 미디어컴퓨터의 오디오 재생 장치.An oscillator 1 for outputting an oscillation frequency OSC, and a decoder 2 for storing and decoding audio data DATA, which is input to the PC bus according to the output OSC of the oscillator 1, in the memory 3 and then decoding it And a digital / analog converter 4 for analog-converting the output V 2 of the decoder 2 in synchronization with the clock CLK, and an output VL 4 of the digital / analog converter 4 ( VR 4 ), the output of the low pass filter (5) (6) according to the low pass filter (5) and (6) for removing the high pass component and the control signal (V 8 ) for adjusting the audio level. 5 ) (V 6 ) audio reproduction apparatus for a multimedia computer, characterized in that it comprises a digital volume generator (7) for adjusting the level. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930010112A 1993-06-04 1993-06-04 Audio apparatus for multi-media computer KR950007130B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930010112A KR950007130B1 (en) 1993-06-04 1993-06-04 Audio apparatus for multi-media computer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930010112A KR950007130B1 (en) 1993-06-04 1993-06-04 Audio apparatus for multi-media computer

Publications (2)

Publication Number Publication Date
KR950001711A true KR950001711A (en) 1995-01-03
KR950007130B1 KR950007130B1 (en) 1995-06-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930010112A KR950007130B1 (en) 1993-06-04 1993-06-04 Audio apparatus for multi-media computer

Country Status (1)

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KR (1) KR950007130B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100566285B1 (en) * 1999-12-28 2006-03-30 주식회사 케이티 MP3 Decoding device and MP3 play device using MP3 Decoding device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100566285B1 (en) * 1999-12-28 2006-03-30 주식회사 케이티 MP3 Decoding device and MP3 play device using MP3 Decoding device

Also Published As

Publication number Publication date
KR950007130B1 (en) 1995-06-30

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