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KR970706695A - 압축 텔레비젼 신호 송수신 방법(Method of transmitting receiving compressed television signals) - Google Patents

압축 텔레비젼 신호 송수신 방법(Method of transmitting receiving compressed television signals) Download PDF

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Publication number
KR970706695A
KR970706695A KR1019970701800A KR19970701800A KR970706695A KR 970706695 A KR970706695 A KR 970706695A KR 1019970701800 A KR1019970701800 A KR 1019970701800A KR 19970701800 A KR19970701800 A KR 19970701800A KR 970706695 A KR970706695 A KR 970706695A
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South Korea
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signal
transmitter
label
transmission
location
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KR1019970701800A
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KR100455497B1 (ko
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코르넬리스 마리누스 후이체르
루카스 마르쿠스 베렌프리두스 마리아 카렐
프랑크 보스펠트
피세르 피에테르 얀 데
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요트. 게. 아. 롤페즈
필립스 일렉트로닉스 엔. 브이.
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Publication of KR970706695A publication Critical patent/KR970706695A/ko
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Publication of KR100455497B1 publication Critical patent/KR100455497B1/ko

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications
    • H04N7/17318—Direct or substantially direct transmission and handling of requests
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/007—Transform coding, e.g. discrete cosine transform
    • 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
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2387—Stream processing in response to a playback request from an end-user, e.g. for trick-play
    • 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
    • H04N21/47—End-user applications
    • H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • H04N21/47202—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting content on demand, e.g. video on demand
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/637—Control signals issued by the client directed to the server or network components
    • H04N21/6375—Control signals issued by the client directed to the server or network components for requesting retransmission, e.g. of data packets lost or corrupted during transmission from server
    • 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
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/845—Structuring of content, e.g. decomposing content into time segments
    • H04N21/8455—Structuring of content, e.g. decomposing content into time segments involving pointers to the content, e.g. pointers to the I-frames of the video stream

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Databases & Information Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Television Signal Processing For Recording (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

본 발명은 네트워크(3)에 의해 주문형 비디오 서버(1)로부터 수신기(2)로의 MPEG 인코드된 텔레비젼 신호를 전송하는 것에 관한 것이다. '일시 정지' 및 '재개'와 같은 비 선형 플레이백 기능은 비트 스트림의 매우 정확한 제어를 필요로 하고 네트워크 래턴시 및 리멀티플렉싱과 같은 통상의 네트워크 측면을 참직한다. 일시정지 후에 수신기가 신호 재생을 완벽하게 재개할 수 있도록 하기 위해 위치 라벨들은(p;5,6;7a,8a,8b) 서버가 인터럽선 이후에 신호 전송을 재개할 수 있는 위치에서 비트 스트림으로 삽입된다. 일시 정지 요청에 대해 디코더는 그러한 위치 라벨이 검출될 때까지 시초에 재생을 계속한다. 네트워크에 의해 전달된 이어지는 비트는 무시된다. 즉 버려진다. 재생 재개하는 요청에 대해 수신기는 검출된 위치에서 시작하는 신호를 재전송하도록 서버에게 요청한다.

Description

압축 텔레비전 신호 송수신 방법 (Method of transmitting receiving compressed television signals)
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 따른 주문형 비디오 서버 및 셋 탑 박스를 포함하는 시스템을 도시하는 도면, 제2도는 본 발명의 한 실시예에 따라 전송된 텔레비전 신호의 예시를 도시하는 도면, 제3도는 서버 및 셋 탑 박스에 의해 실행된 동작의 단계를 도시하는 플로우차트.

Claims (13)

  1. 압축 텔레비전 신호 전송 방법에 있어서, 상기 신호의 전송이 인터럽션 이후에 재개될 수 있는 위치에서 위치 라벨을 상기 신호에 삽입하는 것을 특징으로 하는 압축 텔레비젼 신호 전송 방법.
  2. 제1항에 있어서, 상기 신호는 일련의 패킷으로서 전송되며 상기 위치 라벨은 중간 제어 패킷에 수용되는 것을 특징으로 하는 압축 텔레비젼 신호 전송 방법.
  3. 제2항에 있어서, 상기 위치 라벨은 MPEG 스트림 디스크립터로서 상기 제어 전송 패킷에 전송되는 것을 특징으로 하는 압축 텔레비젼 신호 전송 방법.
  4. 제1항에 있어서, 상기 신호는 일련의 패킷으로서 전송되며 상기 위치 라벨은 상기 패킷에 수용되는 것을 특징으로 하는 압축 텔레비젼 신호 전송 방법.
  5. 제4항에 있어서, 상기 위치 라벨은 개별 데이터 바이트로서 MPEG 전송 패캣의 적응 필드에 전송되는 것을 특징으로 하는 압축 텔레비젼 신호 전송 방법.
  6. 전송기로부터 압축 텔레비전 신호를 수신하는 방법에 있어서, 상기 신호 전송을 인터럽트하도록 상기 전송기에 요청을 보내는 단계와, 상기 신호에 삽입된 위치 라벨의 검출에 대해 상기 신호의 상기 재생을 인터럽트하고 상기 위치 라벨을 뒤따르는 상기 수신된 신호를 버리는 단계와, 상기 위치 라벨에 의해 제한된 상기 위치로부터의 상기 신호 전송을 재개하도록 상기 전송기에 요청을 보내는 단계와, 그 수신에 대해 상기 신호의 상기 재생을 재개하는 단계를 포함하는 것을 특징으로 하는 압축 텔레비젼 신호 수신 방법.
  7. 압축 텔레비젼 신호를 송신하는 송신기에 있어서, 상기 텔레비전 신호의 상기 전송이 인터럽트되고 재개될 수 있는 위치에서 상기 신호에 위칠 라벨을 삽입하는 수단을 포함하고 있는 것을 특징으로 하는 압축 텔레비젼 신호 송신기.
  8. 제7항에 있어서, 상기 신호는 일련의 연속 데이터 패킷을 포함하고 상기 전송기는 상기 위치 라벨을 중간 제어 패킷에 수용하도록 적응되는 것을 특징으로 하는 압축 텔레비젼 신호 전송기.
  9. 제8항에 있어서, 상기 위치 라벨은 MPEG 전송 패킷에 디스크립터로서 전송되는 것을 특징으로 하는 압축 텔레비젼 신호 전송기.
  10. 제7항에 있어서, 상기 신호는 일련의 연속 데이터 패킷을 포함하고 상기 전송기는 상기 신호 패킷 중 선택된 하나에 상기 위치 라벨을 수용하도록 적응되는 것을 특징으로 하는 압축 텔레비젼 신호 전송기.
  11. 제10항에 있어서, 상기 위치 라벨은 MPEG 전송 패킷의 적응 필드에 개별 데이터 바이트로서 전송되는 것을 특징으로 하는 압축 텔레비젼 신호 전송기.
  12. 압축 텔레비젼 신호를 수신하는 수신기에 있어서, 상기 수신기는 상기 신호 전송을 인터럽트하도록 전송기에 요청을 보내고, 상기 신호로 삽입된 위치 라벨의 검출에 대해 상기 신호의 재생을 인터럽트하고, 상기 위치 레벨을 뒤따르는 상기 수신된 신호를 버리며, 상기 위치 라벨에 의해 제한된 상기 위치로부터 상기 신호 전송을 재개하도록 상기 전송기에 요청을 보내고, 그 수신에 대해 상기 신호의 상기 재생을 재개하도록 적응되는 제어 수단을 포함하는 것을 특징으로 하는 압축 텔레비젼 신호 수신기.
  13. 압축 텔레비젼 신호에 있어서, 상기 신호의 상기 전송이 인터럽션 이후에 재개될 수 있는 위치에서 삽입되는 위치 라벨을 포함하는 것을 특징으로 하는 압축 텔레비젼 신호.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019970701800A 1995-07-21 1996-07-16 압축된텔레비전신호,압축된텔리비전신호전송방법및장치,압축된텔레비전신호수신방법및장치 KR100455497B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP95202019 1995-07-21
EP95202019.6 1995-07-21

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KR970706695A true KR970706695A (ko) 1997-11-03
KR100455497B1 KR100455497B1 (ko) 2004-12-30

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KR1019970701800A KR100455497B1 (ko) 1995-07-21 1996-07-16 압축된텔레비전신호,압축된텔리비전신호전송방법및장치,압축된텔레비전신호수신방법및장치
KR1019970701767A KR100455496B1 (ko) 1995-07-21 1996-07-16 압축비디오신호들을수신하는방법

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US (3) US5873022A (ko)
EP (2) EP0787406B1 (ko)
JP (2) JP3887019B2 (ko)
KR (2) KR100455497B1 (ko)
CN (2) CN1113539C (ko)
AU (2) AU704427B2 (ko)
BR (2) BR9606534A (ko)
DE (2) DE69606971T2 (ko)
ES (2) ES2146006T3 (ko)
MY (2) MY116662A (ko)
WO (2) WO1997004584A2 (ko)

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CN1191653A (zh) 1998-08-26
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US5873022A (en) 1999-02-16
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JPH11500289A (ja) 1999-01-06
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AU708139B2 (en) 1999-07-29
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