KR960043877A - 수신장치 및 수신방법 - Google Patents

수신장치 및 수신방법 Download PDF

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KR960043877A
KR960043877A KR1019960017871A KR19960017871A KR960043877A KR 960043877 A KR960043877 A KR 960043877A KR 1019960017871 A KR1019960017871 A KR 1019960017871A KR 19960017871 A KR19960017871 A KR 19960017871A KR 960043877 A KR960043877 A KR 960043877A
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receiving
output
decoding
selecting
signal
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KR1019960017871A
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KR100419838B1 (ko
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도시히데 하야시
아끼꼬 모리사와
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이데이 노부유끼
소니 가부시끼가이샤
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    • 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
    • H04N21/488—Data services, e.g. news ticker
    • H04N21/4884—Data services, e.g. news ticker for displaying subtitles
    • 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
    • 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
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
    • 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
    • H04N21/47—End-user applications
    • 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
    • H04N21/488—Data services, e.g. news ticker
    • H04N21/4888—Data services, e.g. news ticker for displaying teletext characters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/025—Systems for the transmission of digital non-picture data, e.g. of text during the active part of a television frame
    • H04N7/035—Circuits for the digital non-picture data signal, e.g. for slicing of the data signal, for regeneration of the data-clock signal, for error detection or correction of the data signal
    • 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
    • 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
    • H04N7/0884—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 additional display-information, e.g. menu for programme or channel selection
    • 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
    • H04N7/0884—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 additional display-information, e.g. menu for programme or channel selection
    • H04N7/0885—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 additional display-information, e.g. menu for programme or channel selection for the transmission of subtitles
    • 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
    • H04N21/42607—Internal components of the client ; Characteristics thereof for processing the incoming bitstream
    • H04N21/4263—Internal components of the client ; Characteristics thereof for processing the incoming bitstream involving specific tuning arrangements, e.g. two tuners
    • 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
    • H04N21/4305—Synchronising client clock from received content stream, e.g. locking decoder clock with encoder clock, extraction of the PCR packets

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Television Systems (AREA)

Abstract

본 발명은 목적은, 장치를 대형화하지 않고 문자다중방송에 의해 자막의 방송이 개시된 경우에는, 그 자막을 우선적으로 표시할수 있도록 하는데 있다.
그 구성은, 스위치(6)가 문자다중방송수신용의 튜너(3)와 접속되어 있는 단자(b)를 선택하고 있는 경우, 마이컴(11)은, 정기적으로 스위치(6)를 텔레비전방송수신용의 튜너(2)와 접속되어 있는 단자(a)측으로 전환한다. 스위치(6)가 단자(a)를 선택하고 있는 동안, 디코더(7)에 있어서 튜너(2)로부터 출력되는 영상신호에 중첩되어 있는 문자다중방송의 데이터가 자막인지 아닌지가 검출된다. 그리고 그 데이터가 자막인 것이 검출된 경우, 스위치(6)는 단자(a)에 강제적으로 전환되고, 디코더(7)에서는 그 자막이 디코드된다.

Description

수신장치 및 수신방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제4도는 본 발명을 적용한 텔레비전수상기의 일실시예의 구성을 나타내는 블록도이다.

Claims (4)

  1. 문자다중방송용의 데이터인 문자방송데이터가 중첩된 텔레비전방송신호를 수신하는 수신장치로써, 상기 텔레비전방송신호를 수신하고, 소정의 채널의 신호를 복조하여 복조신호를 출력하는 제1및 제2수신수단과, 상기 제1및 제2수신수단에서 출력되는 상기 복조신호의 어느 것에서, 상기 문자방송데이터를 추출하여 디코드하는 1개의 디코드수단과, 상기 제1 및 제2수신수단, 또는 상기 디코드수단의 출력중의 어느 것 1개를 출력하고, 또는 그들 중의 임의의 2개를 합성하여 출력하는 출력수단과, 상기 제1 및 제2수신수단에서 출력되는 신호의 어느 한편을 선택하고, 상기 디코드수단에 공급하는 선택수단, 상기 선택수단이 상기 제2수신수단으로부터 출력되는 상기 복조신호를 선택하고 있는 경우에, 상기 선택수단에 상기 제1수신수단으로부터 출력되는 상기 복조신호를, 정기적으로 선택시키는 제어를 행하는 제어수단과, 상기 선택수단이 상기 제1수신수단에서 출력되는 상기 복조신호를 선택하고 있는 경우에 상기 디코드수단에 의해 추출되는 상기 문자방송데이터가 자막인지 아닌지를 검출하는 검출수단과를 갖추고, 상기 제어수단은, 상기 검출수단에 의해 상기 문자방송데이터가 자막인 것이 검출된 경우, 상기 선택수단에 상기 제1수신수단으로부터 출력되는 상기 복조신호를 강제적으로 선택시키는 것을 특징으로 하는 수신 장치.
  2. 제1항에 있어서, 상기 출력수단의 출력을 표시하는 표시수단을 또한 갖추는 것을 특징으로 하는 수신장치.
  3. 제1항에 있어서, 상기 출력수단은, 상기 검출수단에 의해 상기 문자방송데이터가 자막인 것이 검출된 경우, 상기 제1수신수단 및 상기 디코드수단의 출력을 합성하여 출력하는 것을 특징으로 하는 수신장치.
  4. 문자다중방송용의 데이터인 문자방송데이터가 중첩된 텔레비전방송신호를 수신하고, 소정의 채널의 신호를 복조하여 복조신호를 출력하는 제1 및 제2수신수단과, 상기 제1 및 제2수신수단에서 출력되는 상기 복조신호의 어느 것에서, 상기 문자방송데이터를 추출하여 디코드하는 1개의 디코드수단과, 상기 제1,제2수신수단 또는 상기 디코드수단의 출력중의 어느 것 1개를 출력하고, 또는 그들 중의 임의의 2개를 합성하여 출력하는 출력수단과, 상기 제1 또는 제2수신수단으로부터 출력되는 신호의 어느 한편을 선택하고, 상기 디코드수단에 공급하는 선택수단과를 갖추는 수신장치의 수신방법으로써, 상기 선택수단이 상기 제2수신수단으로부터 출력되는 상기 복조신호를 선택하고 있는 경우에, 상기 선택수단에 상기 제1수신수단으로부터 출력되는 상기 복조신호를 정기적으로 선택시키고, 상기 선택수단이 상기 제1수신수단으로부터 출력되는 상기 복조신호를 선택하고 있는 경우에, 상기 디코드수단에 의해 추출되는 상기 문자방송데이터가 자막인지 아닌지를 검출하고, 상기 문자방송데이터가 자막인 것이 검출된 경우, 상기 선택수단에 상기 제1수신수단으로부터 출력되는 상기 복조신호를 강제적으로 선택시키는 것을 특징으로 하는 수신방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960017871A 1995-05-26 1996-05-25 수신장치및수신방법 KR100419838B1 (ko)

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JP95-127815 1995-05-26
JP12781595A JP3393356B2 (ja) 1995-05-26 1995-05-26 受信装置および受信方法

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KR100419838B1 KR100419838B1 (ko) 2004-09-01

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