KR950025749A - Signal Processing Device for Video Compact Disc Player - Google Patents

Signal Processing Device for Video Compact Disc Player Download PDF

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Publication number
KR950025749A
KR950025749A KR1019940003690A KR19940003690A KR950025749A KR 950025749 A KR950025749 A KR 950025749A KR 1019940003690 A KR1019940003690 A KR 1019940003690A KR 19940003690 A KR19940003690 A KR 19940003690A KR 950025749 A KR950025749 A KR 950025749A
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KR
South Korea
Prior art keywords
switching
compact disc
video
disc
output
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KR1019940003690A
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Korean (ko)
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KR970006828B1 (en
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배홍문
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배순훈
대우전자 주식회사
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Priority to KR1019940003690A priority Critical patent/KR970006828B1/en
Publication of KR950025749A publication Critical patent/KR950025749A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N5/926—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback by pulse code modulation
    • H04N5/9261—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback by pulse code modulation involving data reduction
    • H04N5/9264—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback by pulse code modulation involving data reduction using transform coding
    • 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
    • G11B20/00007—Time or data compression or expansion
    • 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

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Abstract

본 발명은 비디오컴팩트디스크에 수록된 동화상정보의 처리경로와 컴팩트 디스크그래픽에 수록된 음성정보라든지 정지화상정보의 처리경로를 스위칭방식으로 설정하여 비디오컴팩트디스크와 캠팩트디스크류의 재생이 가능하도록 된 비디오컴팩트디스크플레이어에 관한 것으로, 컴팩트디스크그래픽이라든지 비디오컴팩트디스크와 같은 디스크로부퍼 광픽업(21)에 의해 독취된 신호를 처리하여 디지탈음성신호와 현재 재생대상의 디스크의 서브코드 또는 압축부호데이터를 출력하는 음성신호처리부(22)와, 이 음성 신호처리부(22)에서 출력되는 상기 디스크의 서브코드 또는 압축부호데이터의 입력에 따라 상기 디스크의 음성 및 영상신호의 처리경로를 스위칭제어하는 마이컴(23), 상기 디스크의 음성신호처리경로를 스위칭제어하는 제1스위칭소자(25), 상기 서브코드와 상기 디스크의 문자정보를 스위칭출력하는 제2스위칭소자(28), 이 제2스위칭소자(28)에 의해 스위칭 출력되는 서브코드에 대응하는 CDG디코더(29)로부터의 아날로그 영상데이타와 상기 비디오컴팩트디스크의 압축영상 및 음성을 복호하는 MPEG디코더부(24)로부터의 영상출력을 스위칭하는 제3스위칭소차(31), 이 제3스위칭소자(31)의 스위칭 동작을 제어하여 RGB엔코더(32)와 영상출력부(33)를 통해 NTSC방색의 복합영상신호로 변환되어 증폭출력되도록 하는 논리회로소자(30)를 갖추어 킴팩트디스크 그래픽과 비디오컴팩트디스크로부터 독취 되는 영상 및 음성 신호의 처리경로를 선택적으로 제어하여 회로의 단순화를 도모함과 더불어 설계상의 편리함을 취할 수 있도록 한 것이다.According to the present invention, a video compact disc and a compact disc can be played by setting a processing method of moving picture information recorded on a video compact disc, audio information recorded on a compact disc graphic, and a processing path of still picture information by a switching method. A disc player, which processes a signal read by the optical pickup 21 into a disc such as a compact disc graphic or a video compact disc, and outputs a digital audio signal and sub code or compressed code data of the disc currently being reproduced. A microcomputer 23 for switching and controlling the audio and video signal processing paths of the disc in accordance with the input of the audio signal processor 22 and the sub-code or compressed code data of the disc output from the audio signal processor 22; A first switching element 2 for switching and controlling the audio signal processing path of the disc; 5) an analog from the CDG decoder 29 corresponding to the second switching element 28 for switching and outputting the character information of the sub code and the disc, and the sub code switched and output by the second switching element 28; A third switching step 31 for switching the video output and the video output from the MPEG decoder unit 24 for decoding the compressed video and audio of the video compact disc, and controlling the switching operation of the third switching element 31 Equipped with a logic circuit 30 for converting the NTSC color composite video signal through the RGB encoder 32 and the image output unit 33 so that the amplified output is made. Video and audio signals read from a compact disc graphic and a video compact disc. By selectively controlling the processing path of, the circuit is simplified and the design convenience can be taken.

Description

비디오컴팩트디스크플레이어의 신호처리장치Signal Processing Device for Video Compact Disc Player

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

제2도는 본 발명에 따른 비디오컴팩트디스크플레이어의 신호처리장치의 블럭구성을 나타낸 도면이다.2 is a block diagram of a signal processing apparatus of a video compact disc player according to the present invention.

Claims (4)

그래픽코드정보 및 음성 정보가 기록된 컴팩트디스크그래픽이라든지 동화상정보 및 음성정보가 압축부호데이터로 기록된 비디오컴팩트디스크와 같은 디스크로부터 광픽업(21)에 의해 독출된 RF신호를 처리하여 디지탈 음성신호 및 서브코드 또는 상기 압축부호데이터를 출력하는 수단(22)과; 상기 디스크로부터 독취된 서브코드 또는 압축부호데이터에 따라 상기 디스크에 대한 신호처리경로를 스위칭제어하는 제어수단(23);상기 컴팩트디스크그래픽과 상기 비디오컴팩트디스크의 음성신호에 대해 디지탈필터/디지탈-아날로그변환부(26)와 음성출력부(27)에 의한 잡음필터링과 아날로그변환 및 증폭출력이 행해지도록 음성 신호처리경로를 스위칭하는 제1스위칭수단(25); 상기 컴팩트디스크그래픽의 서브코드와 디스크의 재생에 관한 문자정보를 스위칭출력하는 제2스위칭수단(28); 상기 제2스위칭수단(28)에 의해 스위칭 출력되는 상기 서브코드에 대응하는 CDG디코딩수단(29)의 영상데이터와 상기 비디오컴팩트디스크로부터의 압축부호데이터를 복호화는 MPEG디코딩수단(24)의 영상데이터를 스위칭출력하는 제3스위칭수단(31); 및, 상기 제3스위칭수단(31)의 스위칭동작음 제어하여 상기 각 디스크의 영상데이터가 RGB엔코더(32)와 영상출력부(33)를 통해 NTSC방식의 복합영상신호를 변환되어 증폭출력되도록하는 수단(30)을 갖추어 구성된 것을 특징으로 하는 비디오컴팩트디스크플레이어의 신호처리장치.A digital audio signal is processed by processing an RF signal read by the optical pickup 21 from a disc such as a compact disc graphic in which graphic code information and voice information are recorded or a video compact disc in which moving picture information and voice information are recorded as compressed code data. Means (22) for outputting subcodes or said compressed code data; Control means (23) for switching and controlling signal processing paths for the disc in accordance with subcodes or compressed code data read from the disc; digital filters / digital-analogs for audio signals of the compact disc graphics and video compact discs; First switching means (25) for switching the voice signal processing path to perform noise filtering and analog conversion and amplification output by the converter (26) and the voice output unit (27); Second switching means (28) for switching out the subcode of the compact disc graphic and the character information relating to reproduction of the disc; Image data of the MPEG decoding means 24 which decodes the image data of the CDG decoding means 29 corresponding to the subcode switched by the second switching means 28 and the compressed code data from the video compact disc. Third switching means (31) for switching output; And controlling the switching operation sound of the third switching means 31 so that the video data of each disk is converted into an NTSC type composite video signal through an RGB encoder 32 and an image output unit 33 to be amplified and output. And a means (30). A signal processing apparatus for a video compact disc player. 제1항에 있어서, 상기 제어수단(23)에는 상기 디스크에 대한 문자정보(문자정보폰트)가 저장된 문자정보저장수단(23a)이 갖추어진 것을 특징으로 하는 비디오컴팩트디스크플레이어의 신호처리장치.2. A signal processing apparatus for a video compact disc player according to claim 1, wherein said control means (23) is provided with character information storage means (23a) in which character information (character information font) for said disc is stored. 제1항에 있어서, 상기 제3스위칭수단(31)의 스위칭동작을 제어하는 수단(30)은 상기 제어수단(23)으로부터 출력되는 상기 컴팩트디스크그래픽 또는 상기 비디 오컴팩트디스크에 관한 제어 신호와 상기 CDG디코딩수단(29)으로부터의 출력을 기초로 상기 제3스위칭수단을 제어하는 논리회로소자로 구성된 것을 특징으로 하는 비디오컴팩트 디스크플레이어의 신호처리장치.According to claim 1, wherein the means for controlling the switching operation of the third switching means 31 is a control signal for the compact disc graphics or the video compact disc output from the control means 23 and the And a logic circuit element for controlling said third switching means on the basis of the output from said CDG decoding means (29). 제3항에 있어서, 상기 제3스위칭수단(31)의 스위칭동작을 제어하는 수단(30)을 구성하는 논리회로소자는 오어게이트인 것을 특징으로 하는 비디오컴팩트디스크플레이어의 신호처리장치.4. The signal processing apparatus of a video compact disc player according to claim 3, wherein the logic circuit element constituting means (30) for controlling the switching operation of said third switching means (31) is an or gate. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940003690A 1994-02-28 1994-02-28 Signal processing apparatus for video cd player KR970006828B1 (en)

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Application Number Priority Date Filing Date Title
KR1019940003690A KR970006828B1 (en) 1994-02-28 1994-02-28 Signal processing apparatus for video cd player

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Application Number Priority Date Filing Date Title
KR1019940003690A KR970006828B1 (en) 1994-02-28 1994-02-28 Signal processing apparatus for video cd player

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KR950025749A true KR950025749A (en) 1995-09-18
KR970006828B1 KR970006828B1 (en) 1997-04-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100502710B1 (en) * 2002-05-24 2005-07-20 주식회사 아이큐브 Optical disk regenerative apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100502710B1 (en) * 2002-05-24 2005-07-20 주식회사 아이큐브 Optical disk regenerative apparatus

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KR970006828B1 (en) 1997-04-30

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