KR940016019A - 데이타 재생 장치 및 재생 방법 - Google Patents

데이타 재생 장치 및 재생 방법 Download PDF

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KR940016019A
KR940016019A KR1019930028147A KR930028147A KR940016019A KR 940016019 A KR940016019 A KR 940016019A KR 1019930028147 A KR1019930028147 A KR 1019930028147A KR 930028147 A KR930028147 A KR 930028147A KR 940016019 A KR940016019 A KR 940016019A
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data
video
decoding
audio
timing
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KR1019930028147A
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KR100307118B1 (ko
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야스시 후지나미
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오오가 노리오
소니 가부시끼가이샤
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/24—Systems for the transmission of television signals using pulse code modulation
    • H04N7/52—Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal
    • H04N7/54—Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal the signals being synchronous
    • 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
    • H04N5/93—Regeneration of the television signal or of selected parts thereof
    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H04N21/42646—Internal components of the client ; Characteristics thereof for reading from or writing on a non-volatile solid state storage medium, e.g. DVD, CD-ROM
    • 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
    • H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
    • H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
    • H04N21/43072—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen of multiple content streams on the same device
    • 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
    • H04N21/432—Content retrieval operation from a local storage medium, e.g. hard-disk
    • H04N21/4325—Content retrieval operation from a local storage medium, e.g. hard-disk by playing back content from the storage medium
    • 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
    • H04N21/4341—Demultiplexing of audio and video streams
    • 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
    • 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
    • H04N5/9265—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback by pulse code modulation with processing of the sound signal
    • H04N5/9267—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback by pulse code modulation with processing of the sound signal using time division multiplex of the PCM audio and PCM video signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/84—Television signal recording using optical recording
    • H04N5/85—Television signal recording using optical recording on discs or drums
    • 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
    • H04N5/93—Regeneration of the television signal or of selected parts thereof
    • H04N5/94—Signal drop-out compensation
    • H04N5/945—Signal drop-out compensation for signals recorded by pulse code modulation

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

본 발명은 동기 에러 검출 및 수정을 용이하게 하는 것을 목적으로 한다.
DTSV회로(30)은 비디오 데이타와, 비디오 디코더(7)이 디코드를 개시하는 시각을 나타내는 DTSV를 포함하는 입력 데이타로부터, 비디오 디코더(7)의 직전(또는, 그 내부)에 있어서 DTSV를 추출한다. 동기 제어 회로(31)은 DTSV 추출회로(30)에서 공급되는 DTSV와, STC레지스터(26)에서 공급되는 현재 시각(STC)를 비교하여, 비교결과에 기초해서 비디오 디코더(7)를 제어한다.

Description

데이타 재생 장치 및 재생 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 데이타 재생 장치의 한 실시예의 구성을 도시한 블럭도. 제2도는 제1도의 오디오 코드 버퍼(8A)의 한 구성예를 도시한 도면. 제3도는 제1도의 실시예의 동작을 설명하는 타이밍차트, 제4도는 본 발명의 데이타 재생 장치의 다른 실시예의 구성을 도시한 블럭도.

Claims (7)

  1. 비디오 데이타를 디코드하는 비디오 디코드 수단, 상기 비디오 데이타와, 상기 비디오 디코드수단의 디코드를 개시하는 시각을 나타내는 비디오 타이밍 데이타를 포함하는 입력 데이타로부터, 상기 비디오 디코드 수단의 직전 또는 내부에 있어 상기 비디오 타이밍 데이타를 추출하는 비디오 타이밍 데이타 추출 수단, 기준 타이밍 신호를 발생하는 타이밍 수단, 및 상기 비디오 타이밍 데이타 추출 수단에 의해 추출된 비디오 타이밍 데이타와 상기 기준 타이밍 신호를 비교하여, 비교 결과에 기초해서 상기 비디오 디코드 수단을 제어하는 동기 제어 수단을 포함하는 것을 특징으로 하는 데이타 재생 장치.
  2. 제1항에 있어서, 오디오 데이타를 디코드하는 오디오 디코드 수단, 및 상기 오디오 데이타와, 상기 오디오 디코드 수단이 디코드를 개시하는 시각을 나타내는 오디오 타이밍 데이타를 포함하는 입력 데이타로부터, 상기 오디오 디코드 수단의 직전 또는 내부에 있어 상기 오디오 타이밍 데이타를 추출하는 오디오 타이밍 데이타 추출 수단을 더 포함하고, 상기 동기 제어 수단이, 상기 오디오 타이밍 데이타 추출 수단에 의해 추출된 오디오 타이밍 데이타와 상기 기준 타이밍 신호를 비교하여, 비교 결과에 기초해서 상기 오디오 디코드 수단을 제어하는 것을 특징으로 하는 데이타 재생 장치.
  3. 제2항에 있어서, 상기 동기 제어 수단이, 상기 비디오 타이밍 데이타 추출 수단에 의해 추출된 비디오 타이밍 데이타와 상기 오디오 타이밍 데이타 추출 수단에 의해 추출된 오디오 타이밍 데이타를 비교하여, 비교 결과에 기초해서 상기 비디오 디코드 수단 또는 상기 오디오 디코드 수단을 제어하는 것을 특징으로 하는 데이타 재생 장치.
  4. 비디오 데이타를 디코드하는 비디오 디코드 수단, 오디오 데이타를 디코드하는 오디오 디코드수단, 및 일시 정지 지령 및 그 해제에 따라 상기 비디오 디코드 수단 및 상기 오디오 디코드 수단의 디코딩을 정지시켜 진행시키는 제어수단을 포함하는 것을 특징으로 하는 데이타 재생 장치.
  5. 비디오 데이타 및 오디오 데이타를 기억하고, 이들의 데이타를 독출하는 드라이브 수단, 비디오 데이타를 디코드하는 비디오 디코드 수단, 오디오 데이타를 디코드하는 오디오 디코드 수단, 및 상기 비디오 디코드 수단 및 상기 오디오 디코드 수단의 디코딩을 일시 정지시키고, 상기 드라이브 수단에 데이타를 재독출하게 하는 제어 수단을 포함하는 것을 특징으로 하는 데이타 재생 장치.
  6. 제5항에 있어서, 상기 비디오 디코드 수단 및 상기 오디오 디코드 수단의 디코딩 타이밍의 기준이 되는 기준 타이밍 신호를 발생하는 타이밍 수단을 더 포함하고, 상기 제어 수단은 상기 타이밍 수단을 제어함으로써 상기 비디오 디코드 수단 및 상기 오디오 디코드 수단의 디코딩을 일시 정지시키는 것을 특징으로 하는 데이타 재생 장치.
  7. 데이타 공급측에 있어서 에러가 발생한 경우에, 데이타 소비측을 일시 정지 상태로 하고, 데이타 공급 측에 데이타 공급을 재시행하게 하는 것을 특징으로 하는 데이타 재생 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019930028147A 1992-12-18 1993-12-17 데이타재생장치및재생방법 KR100307118B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP35555792 1992-12-18
JP92-355557 1992-12-18
JP03455793A JP3255308B2 (ja) 1992-12-18 1993-01-29 データ再生装置
JP93-034557 1993-01-29

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KR940016019A true KR940016019A (ko) 1994-07-22
KR100307118B1 KR100307118B1 (ko) 2002-07-27

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US (1) US5502573A (ko)
EP (1) EP0602943B1 (ko)
JP (1) JP3255308B2 (ko)
KR (1) KR100307118B1 (ko)
CN (1) CN1076928C (ko)
AT (1) ATE173370T1 (ko)
AU (1) AU671317B2 (ko)
DE (1) DE69322060T2 (ko)
ES (1) ES2123035T3 (ko)
HK (1) HK1013574A1 (ko)

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ES2123035T3 (es) 1999-01-01
HK1013574A1 (en) 1999-08-27
ATE173370T1 (de) 1998-11-15
US5502573A (en) 1996-03-26
AU671317B2 (en) 1996-08-22
JP3255308B2 (ja) 2002-02-12
KR100307118B1 (ko) 2002-07-27
AU5238793A (en) 1994-06-30
DE69322060T2 (de) 1999-05-06
CN1092197A (zh) 1994-09-14
JPH06237437A (ja) 1994-08-23
CN1076928C (zh) 2001-12-26

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