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KR970068612A - Digital DBS subtitle / character signal transmission system - Google Patents

Digital DBS subtitle / character signal transmission system Download PDF

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Publication number
KR970068612A
KR970068612A KR1019960005738A KR19960005738A KR970068612A KR 970068612 A KR970068612 A KR 970068612A KR 1019960005738 A KR1019960005738 A KR 1019960005738A KR 19960005738 A KR19960005738 A KR 19960005738A KR 970068612 A KR970068612 A KR 970068612A
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South Korea
Prior art keywords
digital
data
audio
video
subtitle
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Application number
KR1019960005738A
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Korean (ko)
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KR100227344B1 (en
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김창기
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정장호
엘지정보통신 주식회사
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Priority to KR1019960005738A priority Critical patent/KR100227344B1/en
Publication of KR970068612A publication Critical patent/KR970068612A/en
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Publication of KR100227344B1 publication Critical patent/KR100227344B1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/087—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only
    • H04N7/088—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital
    • H04N7/0882—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital for the transmission of character code signals, e.g. for teletext
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • H04H40/90—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for satellite broadcast receiving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/06—Generation of synchronising signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
    • H04N5/602—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals for digital sound signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H2201/00—Aspects of broadcast communication
    • H04H2201/10—Aspects of broadcast communication characterised by the type of broadcast system
    • H04H2201/14—Aspects of broadcast communication characterised by the type of broadcast system direct broadcast satellite [DBS]

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Television Systems (AREA)

Abstract

본 발명은 디지탈 DBS(Direct Broadcasting Satellite ; 직접위성방송)에 관한 것으로, 특히 디지탈 비디오데이타 열 내의 부가 데이타 영역에 디지탈 자막(closed caption)데이타/디지탈 문자신호(teletext)를 삽입하여 방송국과 디지탈 DBS 송신국 간의 프로그램 전송에 적합하도록 한 디지탈 DBS의 자막/문자 신호 전송 시스템에 관한 것이다.The present invention relates to a digital DBS (Direct Broadcasting Satellite), and more particularly, to a digital broadcasting system in which a closed caption data / digital character signal (teletext) is inserted in an additional data area in a digital video data string, The present invention relates to a digital DBS subtitle / text signal transmission system suitable for program transmission between stations.

종래의 자막/문자 신호 전송 시스템은 디지탈 자막데이타 및 디지탈 문자신호를 아날로그 신호로 변환하였다가 다시 샘플링하고 추출해야 하므로, 추출에 필요한 장비가 있어야 할 뿐만 아니라 에러가 발생할 가능성이 많은 문제점이 있었다.The conventional caption / character signal transmission system has to convert the digital caption data and the digital character signal into an analog signal and then to sample and extract it again.

본 발명에 따른 디지탈 DBS의 자막/문자 신호 전송 시스템은 디지탈 비디오데이타 열 내의 부가 데이타 영역에 디지탈 자막데이타 또는 디지탈 문자신호를 삽입하여 전송하므로써, 에러 발생률이 적고 전송 장비를 간단히 해 줄 뿐만 아니라 전송 대역폭을 줄이는 효과를 가져올 수 있다.The digital subtitle / character signal transmission system of the digital DBS according to the present invention inserts digital subtitle data or digital character signal into a supplementary data area in a digital video data stream and transmits the inserted subtitle data or digital character signal so that error occurrence rate is low and transmission equipment is simplified, Can be reduced.

Description

디지탈 DBS의 자막/문자 신호 전송 시스템Digital DBS subtitle / character signal transmission system

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제 2도는 본 발명에 따른 디지탈 DBS자막/문자 신호 전송 시스템을 나타낸 구성 블록도이다.FIG. 2 is a block diagram of a digital DBS subtitle / text signal transmission system according to the present invention.

Claims (1)

오디오 신호와 비디오 신호를 출력함과 동시에 타임 코드를 생성하여 인가하는 송출VCR(21)을 포함하는 디지탈 DBS의 자막/문자 신호 전송 시스템에 있어서, 상기 비디오 신호에 상기 오디오 신호와 디지탈 자막데이타 및 문자신호를 삽입하여 송출할 수 있도록 제어하는 송출제어부(23)와; 상기 송출제어부(23)의 제어에 의해 상기 송출 VCR(21)로부터 타임 코드를 인가받아 외부의 데이타 베이스에 저장되어 있는 상기 디지탈 자막데이타 및 문자신호를 상기 비디오 신호와 동기화하는 동기화부(22)와; 상기 송출VCR(21)로부터 인가되는 오디오 신호를 오디오 부가 데이타 영역을 가지는 디지탈 오디오데이타로 변환시키는 오디오 AD변환부(24)와; 상기 송출VCR(21)로부터 인가되는 비디오 신호를 비디오 부가 데이타 영역의 채널그룹을 가지는 디지탈 비디오데이타로 변환시키는 비디오 AD변환부(25)와; 상기 송출제어부(23)의 제어에 의해 선택된 상기 비디오 AD 변환부(25)로부터 인가되는 디지탈 비디오데이타 내의 비디오 부가 데이타 영역의 채널그룹에 상기 오디오 AD변환부(24)로 인가되는 디지탈 오디오데이타를 삽입하여 인가하는 오디오 임베더(26)와; 상기 오디오 임베더(26)로부터 상기 디지탈 오디오데이타가 삽입된 디지탈 비디오데이타를 인가받고, 상기 송출제어부(23)의 제어에 의해 선택된 상기 비디오 부가 데이타 영역의 채널그룹 또는 상기 디지탈 오디오데이타의 오디오 부가 데이타 영역에 상기 동기화부(22)로부터 인가되는 동기화된 디지탈 자막데이타 및 문자신호를 삽입하여 인가하는 데이타 임베더(27)와; 상기 데이타 임베더(27)로부터 인가되는 상기 디지탈 오디오데이타와 디지탈 자막데이타 및 문자신호가 삽입된 디지탈 비디오데이타를 송신하는 송신부(28)를 포함하는 것을 특징으로 하는 디지탈 DBS의 자막/문자 신호 전송 시스템.A subtitle / character signal transmission system of a digital DBS including a transmission VCR (21) for outputting an audio signal and a video signal and generating and applying a time code, the system comprising: A transmission control section (23) for controlling the transmission and reception of signals by inserting signals; A synchronization unit 22 for receiving a time code from the transmission VCR 21 under the control of the transmission control unit 23 and for synchronizing the digital subtitle data and character signals stored in an external database with the video signal, ; An audio AD converter 24 for converting an audio signal applied from the sending VCR 21 into digital audio data having an audio data area; A video AD converter 25 for converting the video signal applied from the sending VCR 21 into digital video data having a channel group of a video part data area; The digital audio data to be applied to the audio AD converter 24 is inserted into the channel group of the video data area in the digital video data applied from the video AD converter 25 selected by the control of the sending controller 23 An audio embedding unit 26 for applying the audio signal; A channel group of the video part data area selected by the control of the transmission control part 23 or an audio part data of the digital audio data A data embedder 27 for inserting and applying synchronized digital caption data and a character signal applied from the synchronization unit 22 to the area; And a transmitter (28) for transmitting the digital audio data and digital video data inserted with the digital subtitle data and the character signal applied from the data embedder (27). The digital subtitle / text signal transmission system . ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960005738A 1996-03-05 1996-03-05 System for transforming the teletext and the character signal of a digital dbs Expired - Fee Related KR100227344B1 (en)

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Application Number Priority Date Filing Date Title
KR1019960005738A KR100227344B1 (en) 1996-03-05 1996-03-05 System for transforming the teletext and the character signal of a digital dbs

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Application Number Priority Date Filing Date Title
KR1019960005738A KR100227344B1 (en) 1996-03-05 1996-03-05 System for transforming the teletext and the character signal of a digital dbs

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KR970068612A true KR970068612A (en) 1997-10-13
KR100227344B1 KR100227344B1 (en) 1999-11-01

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100325502B1 (en) * 1999-01-15 2002-03-06 노성대 System and method for caption manufacture and broadcast
KR100753503B1 (en) * 2005-12-15 2007-08-31 엘지전자 주식회사 Apparatus, Method, and Data Structure for Supplementary Data Service in Mobile Broadcast
KR100755838B1 (en) * 2005-12-15 2007-09-07 엘지전자 주식회사 Mobile broadcast receiver and additional data service method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100325502B1 (en) * 1999-01-15 2002-03-06 노성대 System and method for caption manufacture and broadcast
KR100753503B1 (en) * 2005-12-15 2007-08-31 엘지전자 주식회사 Apparatus, Method, and Data Structure for Supplementary Data Service in Mobile Broadcast
KR100755838B1 (en) * 2005-12-15 2007-09-07 엘지전자 주식회사 Mobile broadcast receiver and additional data service method

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