KR960020490A - Channel Coder / Decoder in Layer Transport Systems - Google Patents

Channel Coder / Decoder in Layer Transport Systems Download PDF

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Publication number
KR960020490A
KR960020490A KR1019940029216A KR19940029216A KR960020490A KR 960020490 A KR960020490 A KR 960020490A KR 1019940029216 A KR1019940029216 A KR 1019940029216A KR 19940029216 A KR19940029216 A KR 19940029216A KR 960020490 A KR960020490 A KR 960020490A
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South Korea
Prior art keywords
layer information
layer
channel
decoding
information
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KR1019940029216A
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Korean (ko)
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KR0141302B1 (en
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박영록
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배순훈
대우전자 주식회사
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Publication of KR960020490A publication Critical patent/KR960020490A/en
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    • 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
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability

Abstract

본 발명은 전송하려는 정보를 중요도에 따라 두개의 계층으로 분리하여 전송하는 계층 전송 시스팀의 채널 부호/복호화 장치에 관한 것으로, 중요도를 갖는 계층1신호를 이중으로 부호화하여 전송하므로서 시스팀의 성능을 향상시키기 위한 것이다. 이를 위하여 본 발명은 입력되는 영상 정보를 중요도에 따라 제1계층 정보와 제2계층 정보로 분리하여 제1계층 정보화 제2계층 정보를 각각으로 부호화하되 상기 제1계층 정보의 경우 제2계층 정보의 부호화 과정을 한번 더 수행하여 채널 전송되도록 구성된 채널 부호화 수단, 상기 채널 부호화 수단에 의해 부호화된 제1계층 정보화 제2계층 계층 정보를 각각으로 복호화하되 상기 복호화된 제1계층 정보의 경우 제2계층 정보의 복호화 과정을 한번 더 수행하여 복호화 되도록 구성된 채널 복호화 수단을 구비하여 구성됨을 특징으로 한다.The present invention relates to a channel code / decoding apparatus for a layer transmission system that separates and transmits information to be transmitted into two layers according to importance, and improves the performance of the system by encoding and transmitting a layer 1 signal having importance. It is for. To this end, the present invention separates the input image information into first layer information and second layer information according to importance, and encodes first layer information and second layer information, respectively, in the case of the first layer information. A channel encoding means configured to transmit the channel by performing the encoding process once more, and decoding the first layer informatization second layer information encoded by the channel encoding means, respectively, in the case of the decoded first layer information, the second layer information. And channel decoding means configured to decode by performing the decoding process once more.

Description

계층 전송 시스팀의 채널 부호/복호화 장치Channel Coder / Decoder in Layer Transport Systems

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제5도 (가)는 본 발명에 의한 계층 전송 시스팀의 채널 부호/복호화장치의 송신단의 구성도,5 (a) is a configuration diagram of a transmitting end of a channel code / decoding device of a layer transmission system according to the present invention;

제5도 (나)는 본 발명에 의한 계층 시스팀의 채널 부호/복호화장치의 수신단의 구성도.5 (b) is a block diagram of a receiving end of a channel code / decoding device of a hierarchical system according to the present invention.

Claims (3)

입력되는 영상 정보를 중요도에 따라 제1계층 정보와 제2계층 정보로 분리하여 제1계층 정보화 제2계층 정보를 각각으로 부호화하되 상기 제1계층 정보의 경우 제2계층 정보의 부호화 과정을 한번 더 수행하여 채널 전송되도록 구성된 채널 부호화수단, 상기 채널 부호화 수단에 의해 부호화된 제1계층 정보와 제2계층 계층 정보를 각각으로 복호화하되 상기 복호화된 제1계층 정보의 경우 제2계층 정보의 복호화 과정을 한번 더 수행하여 복호화 되도록 구성된 채널 복호화 수단을 구비하여 구성됨을 특징으로 하는 계층 전송 시스팀의 채널 부호/복호화 장치.The input image information is separated into first layer information and second layer information according to importance, and the first layer information is encoded into second layer information, respectively. In the case of the first layer information, the second layer information is encoded again. A channel encoding means configured to transmit a channel, and decoding the first layer information and the second layer layer information encoded by the channel encoding means, respectively, and in the case of the decoded first layer information, decoding the second layer information. And channel decoding means configured to be decoded by performing one more time. 제1항에 있어서, 상기 채널 부호화 수단은 중요도를 갖는 제1계층 정보를 부호화하는 제1인코더(52), 상기 제1계층 정보화 준중용도를 갖는 제2계층 정보를 부호화하는 제2인코더(54), 상기 제1 및 제2인코더(52,54)에 의해 부호화된 제1계층 정보화 제2계층 정보를 다중화하여 전송 프레임으로 만드는 멀티플렉서(55), 상기 멀티플렉서(55)로부터 출력되는 신호를 변조하여 채널을 통해 전송하는 변조기(56)로 구성됨을 특징으로 하는 계층 전송 시스템의 채널 부호/복호화 장치.2. The channel encoding means according to claim 1, wherein the channel encoding means comprises: a first encoder (52) for encoding first layer information with importance, and a second encoder (54) for encoding second layer information with semi-mid use in the first layer information. A multiplexer 55 which multiplexes the first layer informationalized second layer information encoded by the first and second encoders 52 and 54 into a transmission frame, and modulates a signal output from the multiplexer 55 to modulate a channel. And a modulator (56) for transmitting via a channel coder / decoding device for a layer transmission system. 제1항 또는 제2항에 있어서, 상기 채널 복호화 수단은 채널을 통해 전송되는 신호를 복조하는 복조기(57), 상기 복조기(57)로부터 출력되는 신호를 역다중화하여 분리하는 디멀티플렉서(58), 상기 디멀티플렉서(58)로부터 출력되는 부호화원 제1계층 정보를 1차로 복호화하는 제1디코더(59), 상기 디멀티플렉서(58)와 제1디코더 (59)로부터 출력되는 1차로 복호화된 제1계층 정보화 부호화를 제2계층 정보를 복호화하는 제2디코더(60), 상기 제2디코더(60)에 의해 복호화된 제1계층 정보화 제2계층 정보를 합성하는 합성기(63)로 구성됨을 특징으로 하는 계층 전송 시스팀의 채널 부호/복호화 장치.3. The apparatus of claim 1 or 2, wherein the channel decoding means comprises: a demodulator (57) for demodulating a signal transmitted through a channel, a demultiplexer (58) for demultiplexing and separating the signal output from the demodulator (57). A first decoder 59 which firstly decodes encoding source first layer information output from the demultiplexer 58, and a first-layer decoded first layer information encoding that is output from the demultiplexer 58 and the first decoder 59; A second decoder 60 for decoding second layer information, and a synthesizer 63 for synthesizing the first layer informatization second layer information decoded by the second decoder 60. Channel code / decoding device. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940029216A 1994-11-09 1994-11-09 Channel encoding and decoding apparatus of layer transmitting system KR0141302B1 (en)

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KR1019940029216A KR0141302B1 (en) 1994-11-09 1994-11-09 Channel encoding and decoding apparatus of layer transmitting system

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Application Number Priority Date Filing Date Title
KR1019940029216A KR0141302B1 (en) 1994-11-09 1994-11-09 Channel encoding and decoding apparatus of layer transmitting system

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KR960020490A true KR960020490A (en) 1996-06-17
KR0141302B1 KR0141302B1 (en) 1998-06-15

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