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KR950026274A - Digital Signal Processing System with Digest Function - Google Patents

Digital Signal Processing System with Digest Function Download PDF

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Publication number
KR950026274A
KR950026274A KR1019940003294A KR19940003294A KR950026274A KR 950026274 A KR950026274 A KR 950026274A KR 1019940003294 A KR1019940003294 A KR 1019940003294A KR 19940003294 A KR19940003294 A KR 19940003294A KR 950026274 A KR950026274 A KR 950026274A
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digital signal
digest
processing system
frame
signal processing
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KR0129805B1 (en
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김근환
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배순훈
대우전자 주식회사
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/23605—Creation or processing of packetized elementary streams [PES]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4343—Extraction or processing of packetized elementary streams [PES]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/85—Assembly of content; Generation of multimedia applications
    • H04N21/854—Content authoring
    • H04N21/8549—Creating video summaries, e.g. movie trailer

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Television Signal Processing For Recording (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

본 디지탈신호처리시스템에 다이제스트 기능을 수행하도록 하여 종전 시스템에 재생기능을 더 부가한 것이다. 이를 위하여 본 시스템은 부호화시 각각의 엔코더에서 압축된 영상신호 및 오디오신호를 패킷단위로 다중화하는데 있어서 다이제스트 프레임에 대한 정보가 부가되도록 다중화하는 다중화기와, 복호화시 다중화기에서 다중화된 데이타의 역다중화에 의해 손쉽게 다이제스트 기능을 제어하는 역다중화기를 포함하도록 구성된다.The digital signal processing system performs a digest function, thereby adding a reproduction function to the conventional system. To this end, the system provides a multiplexer for multiplexing the information on the digest frame in multiplexing the video and audio signals compressed by each encoder at the time of encoding, and demultiplexing the multiplexed data at the multiplexer during decoding. It is configured to include a demultiplexer to easily control the digest function.

Description

다이제스트(Digest) 기능을 갖는 디지탈 신호처리시스템Digital Signal Processing System with Digest Function

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

제2도는 본 발명에 따른 디지탈신호처리시스템에 사용되는 부호화장치의 블럭도,2 is a block diagram of an encoding apparatus used in a digital signal processing system according to the present invention;

제3도는 본 발명에 따른 다이제스트 기능을 위한 영상 및 오디오신호의 개략적인 비트스트리 맵.3 is a schematic bitstream map of video and audio signals for a digest function in accordance with the present invention.

Claims (10)

인가되는 영상신호 및 오디오신호를 압축하기 위하여 부호화하는 부호화장치와, 상기 부부호화장치에서 압축되어 인가되는 영상신호와 오디오신호를 복호화하는 복호화장치를 구비한 디지탈신호처리시스템에 있어서 ; 상기 부호화장치는, 상기 인가되는 영상신호를 소정 규칙에 의한 엔코더처리에 의하여 압축하는 영상용 엔코더, 상기 오디오신호를 소정의 규칙에 의한 엔코더처리에 의하여 압축하는 오디오용 엔코더, 상기 영상용 엔코더와 상기 오디오용 엔코더로 부터 각각 출력되는 영상 신호와 오디오신호를 패킷단위로 다중화하는데 있어서 다이제스트 프레임에 대한 정보가 부각되도록 다중화하는 다중화기를 포함하고 ; 상기 복호화장치는, 상기 압축되어 인가되는 영상신호 및 오디오신호를 저장하는 디지탈신호 저장기, 상기 디지탈신호 저장기에서 출력되는 상기 영상 신호를 원래의 상태로 복원하기 위하여 디코드 하는 영상용 디코더, 상기디지탈신호 저장기에 출력되는 상기 오디오신호를 원래의 상태로 복원하기 위하여 디코드하는 오디오용 디코더, 사용자에 의해 제어되는 재생모드에 따라 상기 디지탈신호저장기로부터 패킷단위로 인가되는 데이타의 헤더영역을 분석하여 상기 다중화기에서 다중화된 데이타를 역다중화하기 위한 역다중화기를 포함함을 특징으로 하는 다이제스트(Digest)기능을 갖는 디지탈 신호처리시스템.A digital signal processing system comprising: an encoding device for encoding an applied video signal and an audio signal, and a decoding device for decoding the applied video signal and audio signal compressed by the sub-coding device; The encoding apparatus includes an image encoder for compressing the applied video signal by encoder processing according to a predetermined rule, an audio encoder for compressing the audio signal by encoder processing according to a predetermined rule, the video encoder and the A multiplexer for multiplexing the information on the digest frame in multiplexing the video signal and the audio signal respectively output from the audio encoder in packet units; The decoding apparatus includes a digital signal storage for storing the compressed and applied video signal and an audio signal, a video decoder for decoding the video signal output from the digital signal storage to restore an original state, and the digital signal storage device. An audio decoder which decodes the audio signal outputted to the signal storage to its original state, and analyzes a header area of data applied in packet units from the digital signal storage device according to a playback mode controlled by a user. A digital signal processing system having a digest function, comprising a demultiplexer for demultiplexing multiplexed data in a multiplexer. 제1항에 있어서, 상기 역다중화기는 상기 재생모드가 다이제스트 재생모드인 경우, 상기 다중화기에서 설정된 상기 다이제스트 프레임에 대한 정보를 분석하여 현재 인가되는 데이타가 다이제스트 프레임인지를 판단하고, 판단결과 다이제스트 프레임에 대항되는 프레임데이타만은 상기 영상용 디코더 또는 오디오용 디코더로 전송함을 특징으로 하는 다이제스트 기능을 갖는 디지탈 신호처리시스템.The apparatus of claim 1, wherein the demultiplexer analyzes information on the digest frame set by the multiplexer to determine whether the currently applied data is a digest frame when the reproduction mode is a digest reproduction mode. Only frame data, which is opposed to the digital signal processing system having a digest function, characterized in that for transmitting to the image decoder or the audio decoder. 제2항에 있어서, 상기 역다중화기는 상기 판단결과, 인가되는 상기 데이타가 다이제스트 프레임인 경우에는 상기 디지탈 신호 저장기의 출력 속도가 정상적으로 이루어지도록 상기 디지탈신호 저장기로 제어신호를 출력하고, 다이제스트 프레임이 아닌 경우에는 상기 디지탈신호 저장기의 출력속도가 정상보다 고속으로 이루어지도록 상기 디지탈신호 저장기로 제어신호를 출력함을 특징으로 하는 다이제스트 기능을 갖는 디지탈 신호처리시스템.The digital signal storage device of claim 2, wherein the demultiplexer outputs a control signal to the digital signal storage device so that the output speed of the digital signal storage device is normal when the data to be applied are a digest frame. Otherwise, the digital signal processing system outputs a control signal to the digital signal storage device such that the output speed of the digital signal storage device is higher than normal. 제3항에 있어서, 상기 역다중화기는 인가되는 데이타가 다이제스트 프레임이 아닌 경우에는 상기 영상용 디코더 또는 오디오용 디코더로 전송되지 않도록 버림을 특징으로 하는 다이제스트 기능을 갖는 디지탈 신호처리 시스템.4. The digital signal processing system of claim 3, wherein the demultiplexer discards the applied data so that it is not transmitted to the image decoder or the audio decoder when the data is not a digest frame. 제4항에 있어서, 상기 디지탈신호 저장기는 다이제스트 프레임이 아닌 경우의 고속출력은 상기 역다중화기가 인가되는 데이타를 전송하지 않으므로 인하여 상기 영상용 디코더 또는 오디오용 디코더로의 데이타전송이 지연되는 것을 최소화할 수있을 정도의 고속으로 이루어짐을 특징으로 하는 다이제스트 기능을 갖는 디지탈 신호 처리시스템.5. The digital signal storage device of claim 4, wherein the high-speed output when the digital signal storage device is not a digest frame does not transmit data to which the demultiplexer is applied, thereby minimizing delay in data transmission to the video or audio decoder. Digital signal processing system having a digest function, characterized in that it is made at a high speed as much as possible. 제1항에 있어서, 상기 역다중화기는 상기 복호화장치의 기능을 제어하고, 상기 재생모드가 다이제스트 모드로 설정되면 상기 다중화기에서 부가된 다이제스트 프레임에 대한 정보를 분석하여 수행함을 특징으로 하는 마이크로 프로세서로 이루어짐을 특징으로 하는 다이제스트 기능을 갖는 디지탈 신호처리시스템.The microprocessor of claim 1, wherein the demultiplexer controls a function of the decoding apparatus, and analyzes information about a digest frame added by the multiplexer when the reproduction mode is set to a digest mode. Digital signal processing system having a digest function, characterized in that made. 제1항에 있어서, 상기 다중화기는 소정의 간격으로 설정된 다이제스트 프레임들에 다이제스트 프레임을 알리는 데이타와 순번을 부가하여 다중화함을 특징으로 하는 다이제스트 기능을 갖는 디지탈 신호 처리리시스템.The digital signal processing system having a digest function according to claim 1, wherein the multiplexer multiplexes by adding data and a sequence number indicating a digest frame to digest frames set at predetermined intervals. 제5항에 있어서, 상기 디지탈신호처리시스템은 상기 다이제스트 프레임의 순번을 이용하여 수행되는 다이제스트 수행 가격을 조절함을 특징으로 하는 다이제스트 기능을 갖는 디지탈 신호처리시스템.6. The digital signal processing system according to claim 5, wherein the digital signal processing system adjusts a digest performance price performed by using the sequence number of the digest frame. 제7항에 있어서, 상기 다중화기는 상기 다이제스트 프레임으로 할당되는 프레임을 적어도 1개이상의 프레임으로 설정함을 특징으로 하는 다이제스트 기능을 갖는디지탈 신호처리시스템.8. The digital signal processing system according to claim 7, wherein the multiplexer sets the frame allocated to the digest frame to at least one frame. 제7항에 있어서, 상기 다중화기는 설정된 상기 다이제스트 프레임간의 다이제스트 대상이 되지 않은 프레임들을 상기 다이제스트 대상이 되는 프레임수에 비해 더 큰 수를 할당함을 특징으로 하는 다이제스트 기능을 갖는 디지탈 신호처리시스템.8. The digital signal processing system of claim 7, wherein the multiplexer allocates a larger number of frames that are not digest targets between the set digest frames than the number of frames that are digest targets. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940003294A 1994-02-24 1994-02-24 Digital Signal Processing System with Digest Function Expired - Fee Related KR0129805B1 (en)

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St.27 status event code: A-5-5-R10-R18-oth-X000

P22-X000 Classification modified

St.27 status event code: A-4-4-P10-P22-nap-X000