KR970050172A - 디지탈 신호 처리기, 처리 방법 , 디지탈 신호 기록/재생 장치 및 디지탈 신호 재생 방법 - Google Patents

디지탈 신호 처리기, 처리 방법 , 디지탈 신호 기록/재생 장치 및 디지탈 신호 재생 방법 Download PDF

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KR970050172A
KR970050172A KR1019960071127A KR19960071127A KR970050172A KR 970050172 A KR970050172 A KR 970050172A KR 1019960071127 A KR1019960071127 A KR 1019960071127A KR 19960071127 A KR19960071127 A KR 19960071127A KR 970050172 A KR970050172 A KR 970050172A
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digital signal
data
program
digital
transport stream
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KR1019960071127A
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KR100461206B1 (ko
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나오푸미 야나기하라
테루요시 코무로
히사토 시마
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이데이 노부유키
소니 가부시끼가이샤
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Priority claimed from JP35091895A external-priority patent/JP3666093B2/ja
Priority claimed from JP35283095A external-priority patent/JP4190594B2/ja
Priority claimed from JP35283195A external-priority patent/JP3593773B2/ja
Application filed by 이데이 노부유키, 소니 가부시끼가이샤 filed Critical 이데이 노부유키
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Priority to KR1020040042310A priority Critical patent/KR100474788B1/ko
Priority to KR1020040042311A priority patent/KR100484557B1/ko
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Publication of KR100461206B1 publication Critical patent/KR100461206B1/ko

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • G11B5/09—Digital recording
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/40052—High-speed IEEE 1394 serial bus
    • H04L12/40058—Isochronous transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/40052—High-speed IEEE 1394 serial bus
    • H04L12/40071—Packet processing; Packet format
    • H—ELECTRICITY
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    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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    • H04L12/40117—Interconnection of audio or video/imaging devices
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    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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    • H—ELECTRICITY
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    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
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    • H04N21/4345—Extraction or processing of SI, e.g. extracting service information from an MPEG stream
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    • 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
    • H04N21/4347—Demultiplexing of several video streams
    • 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
    • H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
    • 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
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
    • H04N21/43632—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wired protocol, e.g. IEEE 1394
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • 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
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • 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
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    • H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • H04N21/440281—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the temporal resolution, e.g. by frame skipping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/782—Television signal recording using magnetic recording on tape
    • H04N5/783—Adaptations for reproducing at a rate different from the recording rate
    • H—ELECTRICITY
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    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
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    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
    • H04N9/8042—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components involving data reduction

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

디지탈 VTR에 의해 연속적으로 재생도고 디지탈 인터페이스로부터 입력되는 다수의 프로그램이 변화될 때, 비디오 데이터와 오디오 데이터의 빠른 디코딩을 수행하기 위한 것이다, 또한 다수의 디지탈 방송 프로그램이 디지탈 VTR에서 재생될 때, 프로그램 변화를 나타내는 데이터를 더하기 위하여, 디지탈 방송 수신기/복조기에 입력되고 디코딩한다. MPEG 비디오 디코디 및 MPEG 오디오 디코더는 각각 디멀티플렉서에 의해 분리된 MPEG 비디오 데이터와 MPEG 오디오 데이터를 디코딩한다. 디지탈 인터페이스는 디멀티플렉서와 외부 장치 사이의 MPEG 비디오 데이터, MPEG 오디오 데이터 및 보조 데이터를 보내고 수신한다. 디지탈 인터페이스는 입력 신호로부터의 프로그램에서 불연속을 나타내는 플래그를 검출하고, 마이크로컴퓨터는 버퍼 메모리를 초기화시키도록 제어를 수행한다. 신호 처리 마이크로컴퓨터가 디멀티플렉서에 의해 보내진 재생 VAUX 데이터에서 기록 개시(REC START) 위치 및 기록 종료(REC END) 위치를 나타내는 데이터를 검출하고, 이는 디지탈 인터페이스에 공지된다. 디지탈인터페이스는, 디멀티플렉서로부터 비디오 데이터가 입력되는 비동기 패킷의 헤더에서 프로그램 변화를 나타내는 불연속 플래그를 생성한다.

Description

디지탈 신호 처리기, 처리 방법, 디지탈 신호 기록/재생 장치 및 디지탈 신호 재생 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명이 적용되는 디지탈 신호 처리기의 구성을 도시하는 블록도.

Claims (7)

  1. 디지탈 신호 처리기에 있어서, 다수의 다중화된 채널을 포함하는 운송 스트림으로부터의 임의의 채널에 대응하는 운송 스트림을 선택하기 위한 제1의 수단과, 상기 선택된 운송 스트림에서의 보조 데이터를 참조함으로써, 상기 운송 스트림으로부터의 임의의 원하는 프로그램 내의 비디오 데이터와 오디오 데이터를 분리하기 위한 제2의 수단과, 상기 분리된 비디오 및 오디오 데이터를 디코딩하기 위한 제3의 수단과, 외부 장치로부터의 비디오 데이터, 오디오 데이터 및 보조 데이터를 상기 제2의 수단에 보내고, 상기 프로그램의 불연속을 나타내는 데이터를 검출하기 위한 제4의 수단과, 상기 제4의 수단이 상기 프로그램의 불연속을 나타내는 데이터를검출할 때, 상기 제3의 수단을 초기화하기 위한 제4의 수단을 포함하는 것을 특징으로 하는 디지탈 신호 처리기.
  2. 제1항에 있어서, 상기 제2의 수단에서의 보조 데이터는, 상기 제4의 수단이 프로그램 불연속을 나타내는 데이터를 검출할 때, 갱신되는 것을 특징으로 하는 디지탈 신호 처리기.
  3. 다수의 다중화된 채널을 포함하는 운송 스트림으로부터의 임의의 채널에 대응하는 운송 스트림을 선택하기 위한 제1의 수단과, 상기 선택된 운송 스트림에서의 보조 데이터를 참조함으로써, 상기 운송 스트림으로부터의 임의의 원하는 프로그램 내의 비디오 데이터와 오디오 데이터를 분리하기 위한 제2의 수단과, 상기 분리된 비디오 및 오디오 데이터를 디코딩하기 위한 제3의 수단과, 외부 장치로부터의 비디오 데이터, 오디오 데이터 및 보조 데이터를 상기 제2의 수단에 보내고, 상기 프로그램의 불연속을 나타내는 데이터를 검출하기 위한 제4의 수단을 포함하는 디지탈 신호 처리기에서의 디지탈 신호 처리 방법에 있어서, 상기 제3의 수단은, 상기 제4의 수단이 프로그램의 불연속을 나타내는 데이터를 검출할 때, 초기화되는 것을 특징으로 하는 디지탈 신호 처리 방법.
  4. 디지탈 신호 기로/재생 장치에 있어서, 소정의 코딩 구조에 의해 코딩된 디지탈 신호를 입력/출력하기 위한 제1의 수단과, 기록 매체에서 상기 제1의 수단에 의해 전송된 상기 디지탈 신호를 기록하기 위한 제2의 수단과, 상기 기록 매체 상에 기록된 상기 디지탈 신호를 재생하기 위한 제3의 수단과, 상기 제3의 수단에 의해 재생되는 상기 대지탈 신호에서 프로그램 변화를 검출하기 위한 제4의 수단을 포함하고, 상기 제4의 수단은, 프로그램 변화가 검출할 때, 상기 제1의 수단에 의해 출력되는 디지탈 신호에 제1의 확인 데이터를 더하는 것을 특징으로 하는 디지탈 신호 기록/재생 장치.
  5. 제1항에 있어서, 동작 모드를 입력하고, 속도 변화 재생 모드가 지정될 때, 상기 제1의 수단에 의해 출력 되는 디지탈 신호에 제2의 확인 데이터를 더하기 위한 제5의 수단을 더 포함하는 것을 특징으로 하는 디지탈 신호 기록/재생 장치.
  6. 디지탈 신호 재생 방법에 있어서, 상기 재생 디지탈 신호에서의 프로그램이 변화되고, 소정의 코딩 구조에 의해 코딩된 디지탈 신호가 기록 매체로부터 재생되고 외부 장치에 출력될 때, 제1의 확인 데이터가 상기 디지탈 신호에 더해지는 것을 특징으로 하는 디지탈 신호 재생 방법.
  7. 제3항에 있어서, 제2의 확인 데이터가, 속도 변화 재생이 수행될 때, 상기 디지탈 신호에 추가로 더해지는 것을 특징으로 하는 디지탈 신호 재생 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960071127A 1995-12-25 1996-12-24 디지탈신호처리기및디지탈신호처리방법 KR100461206B1 (ko)

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