KR20010036481A - 가상 채널 테이블 데이터 구조 및 부가 정보 송수신 방법 - Google Patents

가상 채널 테이블 데이터 구조 및 부가 정보 송수신 방법 Download PDF

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Publication number
KR20010036481A
KR20010036481A KR1019990043508A KR19990043508A KR20010036481A KR 20010036481 A KR20010036481 A KR 20010036481A KR 1019990043508 A KR1019990043508 A KR 1019990043508A KR 19990043508 A KR19990043508 A KR 19990043508A KR 20010036481 A KR20010036481 A KR 20010036481A
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KR
South Korea
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channel
vct
inactive
identification information
program
Prior art date
Application number
KR1019990043508A
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English (en)
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KR100348249B1 (ko
Inventor
김진필
Original Assignee
구자홍
엘지전자 주식회사
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Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=19614543&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=KR20010036481(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 구자홍, 엘지전자 주식회사 filed Critical 구자홍
Priority to KR1019990043508A priority Critical patent/KR100348249B1/ko
Priority to CA 2688919 priority patent/CA2688919C/en
Priority to CA2776655A priority patent/CA2776655C/en
Priority to CA2776645A priority patent/CA2776645C/en
Priority to CA 2767311 priority patent/CA2767311C/en
Priority to CA 2688931 priority patent/CA2688931C/en
Priority to CA2837633A priority patent/CA2837633C/en
Priority to CA 2630140 priority patent/CA2630140C/en
Priority to CA 2730368 priority patent/CA2730368C/en
Priority to CA2837643A priority patent/CA2837643C/en
Priority to CA2776418A priority patent/CA2776418C/en
Priority to CA2824562A priority patent/CA2824562C/en
Priority to CA 2575038 priority patent/CA2575038C/en
Priority to CA 2688849 priority patent/CA2688849C/en
Priority to CA 2575035 priority patent/CA2575035C/en
Priority to CA2837617A priority patent/CA2837617C/en
Priority to CA2824634A priority patent/CA2824634C/en
Priority to CA2837460A priority patent/CA2837460C/en
Priority to CA 2629277 priority patent/CA2629277C/en
Priority to CA2837910A priority patent/CA2837910C/en
Priority to CA2837461A priority patent/CA2837461C/en
Priority to CA 2797143 priority patent/CA2797143C/en
Priority to CA 2689070 priority patent/CA2689070C/en
Priority to CA2730358A priority patent/CA2730358C/en
Priority to CA2837675A priority patent/CA2837675C/en
Priority to CA 2796926 priority patent/CA2796926C/en
Priority to CA 2730840 priority patent/CA2730840C/en
Priority to CA2837640A priority patent/CA2837640C/en
Priority to CA2824564A priority patent/CA2824564C/en
Priority to CA 2575037 priority patent/CA2575037C/en
Priority to CA 2796906 priority patent/CA2796906C/en
Priority to CA 2688917 priority patent/CA2688917C/en
Priority to CA 2322909 priority patent/CA2322909C/en
Priority to CA 2730576 priority patent/CA2730576C/en
Priority to CA 2688933 priority patent/CA2688933C/en
Priority to CA2837908A priority patent/CA2837908C/en
Priority to CA2824560A priority patent/CA2824560C/en
Priority to CA 2689061 priority patent/CA2689061C/en
Priority to CA2776412A priority patent/CA2776412C/en
Priority to CA 2688848 priority patent/CA2688848C/en
Priority to CA 2688918 priority patent/CA2688918C/en
Priority to CA 2688851 priority patent/CA2688851C/en
Priority to CA 2797145 priority patent/CA2797145C/en
Priority to CA 2797146 priority patent/CA2797146C/en
Priority to CA2824638A priority patent/CA2824638C/en
Priority to CA2776605A priority patent/CA2776605C/en
Priority to CA 2627816 priority patent/CA2627816C/en
Priority to CA 2689063 priority patent/CA2689063C/en
Priority to CA 2628000 priority patent/CA2628000C/en
Priority to CNB001366521A priority patent/CN1187981C/zh
Priority to US09/684,389 priority patent/US7051361B1/en
Publication of KR20010036481A publication Critical patent/KR20010036481A/ko
Application granted granted Critical
Publication of KR100348249B1 publication Critical patent/KR100348249B1/ko
Priority to US10/892,245 priority patent/US7448065B2/en
Priority to US10/892,253 priority patent/US7051359B2/en
Priority to US10/892,195 priority patent/US7100189B2/en
Priority to US10/892,224 priority patent/US7073194B2/en
Priority to US10/892,122 priority patent/US7448064B2/en
Priority to US10/892,216 priority patent/US7080401B2/en
Priority to US11/088,941 priority patent/US7469415B2/en
Priority to US11/980,795 priority patent/US7620972B2/en
Priority to US11/980,724 priority patent/US7603695B2/en
Priority to US11/980,811 priority patent/US7620973B2/en
Priority to US12/320,129 priority patent/US7802289B2/en
Priority to US12/320,132 priority patent/US7779448B2/en
Priority to US12/320,130 priority patent/US7779447B2/en
Priority to US12/379,112 priority patent/US7735112B2/en
Priority to US12/379,114 priority patent/US7757266B2/en
Priority to US12/379,113 priority patent/US7748024B2/en
Priority to US12/461,919 priority patent/US7958538B2/en
Priority to US12/461,920 priority patent/US7882534B2/en
Priority to US12/591,012 priority patent/US7831994B2/en
Priority to US12/591,008 priority patent/US7814530B2/en
Priority to US12/591,007 priority patent/US7814529B2/en
Priority to US12/721,134 priority patent/US7882536B2/en
Priority to US12/721,057 priority patent/US7882535B2/en
Priority to US12/721,109 priority patent/US7886331B2/en
Priority to US13/086,076 priority patent/US8347330B2/en
Priority to US13/370,889 priority patent/US8707367B2/en
Priority to US13/370,904 priority patent/US8707368B2/en
Priority to US13/370,873 priority patent/US8701142B2/en
Priority to US13/617,737 priority patent/US8544041B2/en
Priority to US13/617,827 priority patent/US8539522B2/en
Priority to US13/617,780 priority patent/US8640155B2/en
Priority to US13/617,850 priority patent/US8555307B2/en
Priority to US13/617,690 priority patent/US8539521B2/en
Priority to US13/836,555 priority patent/US20130219450A1/en
Priority to US13/929,379 priority patent/US8683506B2/en
Priority to US13/939,918 priority patent/US8707356B2/en
Priority to US13/939,906 priority patent/US8677405B2/en
Priority to US13/939,899 priority patent/US8707344B2/en
Priority to US13/939,913 priority patent/US8707345B2/en
Priority to US13/970,101 priority patent/US8739209B2/en
Priority to US13/970,086 priority patent/US8726333B2/en
Priority to US13/970,129 priority patent/US8732752B2/en
Priority to US13/970,115 priority patent/US8752082B2/en
Priority to US14/093,207 priority patent/US8782695B2/en
Priority to US14/093,303 priority patent/US9078032B2/en
Priority to US14/093,302 priority patent/US8997147B2/en
Priority to US14/093,209 priority patent/US8978063B2/en
Priority to US14/093,297 priority patent/US9038101B2/en
Priority to US14/282,583 priority patent/US8898699B2/en
Priority to US14/282,607 priority patent/US8910205B2/en
Priority to US14/282,550 priority patent/US8910204B2/en
Priority to US14/282,672 priority patent/US8966529B2/en
Priority to US14/282,640 priority patent/US8938754B2/en
Priority to US14/470,407 priority patent/US9003444B2/en
Priority to US14/470,303 priority patent/US9043836B2/en
Priority to US14/471,171 priority patent/US8984553B2/en
Priority to US14/471,299 priority patent/US9003469B2/en
Priority to US14/473,577 priority patent/US9021523B2/en
Priority to US14/473,478 priority patent/US9015753B2/en
Priority to US14/473,354 priority patent/US9032436B2/en
Priority to US14/473,732 priority patent/US9021524B2/en
Priority to US14/473,737 priority patent/US9015754B2/en
Priority to US14/473,423 priority patent/US9015752B2/en
Priority to US14/605,544 priority patent/US9084009B2/en
Priority to US14/606,444 priority patent/US9088806B2/en
Priority to US14/606,823 priority patent/US9124927B2/en
Priority to US14/610,619 priority patent/US9124938B2/en
Priority to US14/610,732 priority patent/US9113179B2/en
Priority to US14/794,536 priority patent/US9307282B2/en
Priority to US14/794,404 priority patent/US9525915B2/en
Priority to US14/799,216 priority patent/US9525916B2/en
Priority to US14/799,340 priority patent/US9351042B2/en
Priority to US14/800,328 priority patent/US9300988B2/en
Priority to US14/800,349 priority patent/US9294812B2/en
Priority to US14/803,502 priority patent/US9307271B2/en
Priority to US15/350,937 priority patent/US10003850B2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
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    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
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    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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    • H04N21/2353—Processing of additional data, e.g. scrambling of additional data or processing content descriptors specifically adapted to content descriptors, e.g. coding, compressing or processing of metadata
    • H—ELECTRICITY
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Abstract

디지털 TV의 표준으로 규정된 ATSC의 PSIP에 속하는 테이블들 중 VCT에 관한 것으로서, 특히 송신측에서는 비액티브 채널을 구분할 수 있는 식별 정보를 VCT에 포함시켜 송신함으로써, DTV 수신기는 VCT만 파싱하고도 액티브 채널과 비액티브 채널을 구분할 수 있으므로 빠른 채널 전환을 할 수 있다. 또한, 비액티브 채널은 채널 업,다운 키에 의한 채널 절환시 스킵될 수 있으므로 시청자는 방송되지 않는 블랙 화면을 보지않고 채널 서핑(surfing)을 할 수 있다.

Description

가상 채널 테이블 데이터 구조 및 부가 정보 송수신 방법{Data architecture of VCT and method for transmit/receiving service information}
본 발명은 디지털 TV의 표준으로 규정된 ATSC(Advanced Television Systems Committee)의 PSIP(Program and System Information Protocol)에 관한 것으로서, 특히 가상 채널 테이블(VCT)를 파싱하여 현재 방송되는 액티브 채널과 현재 방송되지 않는 비액티브 채널을 구분할 수 있도록 하는 VCT 데이터 구조 및 부가 정보 송수신 방법에 관한 것이다.
일반적으로, EPG(Electronic Program Guide)와 SI(System Information)을 하나로 정의해 놓은 것이 PSIP이다. 상기 PSIP는 지상파 및 케이블 디지털 방송을 위한 ATSC의 규격(standard)으로서, MPEG-2(Moving Picture Experts Group ; ISO/IEC 13818-1 시스템)의 방법으로 엔코딩된 메시지들을 파싱(parsing)하여 프로그램에 관한 다양한 정보를 제공하기 위해 정의해 놓은 것이다(1997 DEC. document A/65).
즉, 상기 PSIP는 MPEG-2 비디오와 AC-3 오디오 포맷으로 만들어진 A/V 데이터를 송수신하고, 각 방송국의 채널들에 대한 정보 및 채널의 각 프로그램에 대한 정보 등을 전송할 수 있도록 여러 테이블들로 구성되어 있다. 그리고, 상기 PSIP는 채널을 선택하여 원하는 방송의 A/V 서비스를 하는 주 기능과 방송 프로그램에 대한 EPG 즉, 방송 안내 서비스를 하는 부가 기능을 지원할 수 있다.
이때, 채널 선택을 위한 채널 정보와 A/V의 수신을 위한 패킷 인식 번호(PID)등의 정보는 가상 채널 테이블(Virtual Channel Table ; VCT), 각 채널의 방송 프로그램들의 EPG 정보들은 EIT(Event Information Table)를 통하여 각각 전송되어진다. 이밖에도 PSIP에는 시간 정보를 위한 STT(System Time Table), 프로그램 등급을 위한 지역 및 심의 기관등에 대한 정보를 전송하기 위한 RRT(Rating Region Table), 채널 및 방송 프로그램에 대한 부가 설명을 위한 ETT(Extended Text Table), 그리고 이와 같은 각 테이블들의 버전 및 PID 관리를 위한 MGT(Master Guide Table)등이 있다. 이들 테이블은 섹션이라 불리는 데이터 구조에 의해 전송된다.
즉, 상기된 테이블들은 모두 섹션이라는 기본 단위를 가지며 하나 이상의 섹션들이 조합되어 하나의 테이블을 구성하게 된다.
이때, VCT는 256개의 섹션으로 분리될 수 있다. 그리고, 하나의 섹션은 여러개의 가상 채널 정보를 실을 수 있으나, 하나의 가상 채널에 대한 정보는 두 개 이상의 섹션으로 나누지 않는다.
도 1은 A/65에 기술된 일반적인 지상파용 VCT의 비트스트림 신택스(syntax)를 나타내고 있다. 즉, 기본적인 VCT에는 트랜스포트 스트림 ID, 채널 번호(메이저, 마이너), 숏 채널 이름, 캐리어 주파수, 프로그램 번호 등이 있고, 추가 정보는 VCT 서술자에 들어있다.
도 1을 보면, VCT는 0xC8의 테이블 식별자(table_id)를 가지며, VCT에 대한 PID는 0x1FFB이다. version_number는 VCT의 버전값을 나타내고, section_number는 이 섹션의 번호를, last_section_number는 완전한 VCT의 마지막 섹션의 번호를 나타내며, num_channels_in_section은 상기 VCT 섹션내에 존재하는 전체 가상 채널의 개수를 지정한다.
그리고, 'for' 루프의 반복문 내에 있는 short_name은 가상 채널 이름을 나타내고, major_channel_number은 상기 반복문 안에서 정의되는 가상 채널과 관련된 '메이저' 채널 번호를 나타낸다. 각각의 가상 채널 번호는 메이저와 마이너 채널 번호에 연결되어 있어야 하며, 메이저, 마이너 채널 번호는 해당 가상 채널에 대한 사용자 참조 번호로 작용한다.
program_number는 MPEG-2 PAT(Program Association Table)와 PMT(Program Map Table)가 정의되어 있는 가상 채널을 연결하기 위해 나타내며, 상기 PAT/PMT안에 있는 프로그램 번호와 일치한다. 여기서, PAT는 각 프로그램 번호마다 그 프로그램의 구성 요소를 기술하는데, PMT를 전송하는 트랜스포트 패킷의 PID를 가리킨다. 상기 PMT는 프로그램 식별 번호와 프로그램을 구성하는 비디오, 오디오 등의 개별 비트열이 전송되고 있는 트랜스포트 패킷의 PID 리스트와 부속 정보를 기술하고 있다.
source_id는 해당 가상 채널에 연결된 프로그램 소스를 나타낸다. 여기서, 소스란 영상, 텍스트, 데이터 또는 음향과 같은 하나의 특정 소스를 말한다. source_id값은 VCT를 전송하는 트랜스포트 스트림 내에서는 유일한 값을 가진다. descriptor_length는 해당 가상 채널의 서술자의 전체 길이를 나타내고, additional_descriptor_length는 수반되는 모든 VCT 서술자의 전체 길이를 나타낸다.
즉, 상기 VCT는 'for' 루프로 된 반복문을 통해서 각각의 가상 채널들의 데이터를 운반한다.
도 2는 방송국에서 4개의 가상 채널들로 스케쥴 방송을 하는 예를 보인 도면이다.
즉, 어떤 방송국에서 51-1,51-2,51-3,51-8번의 4 가상 채널들을 통해 도 2와 같은 스케쥴로 방송을 하고, VCT가 1 섹션으로 구성되어 전송된다고 가정하자.
현재 시간이 20:15분이면 STT에는 현재 시간이 운반된다.
현재 시간 20:15분에 방송하고 있는 채널들은 51-1,51-3이다. 이때, 51-1,51-3을 액티브 채널이라고 정의하자.
한편, 51-2는 현재 시간에는 방송하지 않고 있지만 0:00부터 방송 계획되어 있고, 51-8 역시 다음날 06:00부터 방송 계획되어 있는 채널이다. 이와 같이 현재 시간에는 방송되지 않지만 미래에 방송할 예정인 채널을 비액티브 채널(inactive channel)이라고 정의한다.
결국 모든 채널들은 어떤 시간대를 기준으로 할 때 생겼다 없어졌다할 수 있다.
이때, PSIP 규격에 의하면 VCT에는 액티브 채널은 반드시 포함시켜야 하며(강제 규정 사항), 비액티브 채널들도 EPG 서비스를 위해 포함시킬 수 있다(강제 조항이 아니고 방송국 권고 사항)라고 되어 있다.
따라서, 현재 시간 20:15분에 VCT안에는 51-1,2,3,8번 채널의 정보들이 포함되어 전송될 수 있으며, DTV 수신기는 이러한 VCT를 받아 채널 선택 정보를 시청자에게 제공한다.
그러나, 상기 도 1에 도시된 A/65의 VCT 신택스에 의하면, 상기 DTV 수신기는 VCT를 해석(parsing)하여 액티브 채널(예, 51-1,51-3)과 비액티브 채널(예, 51-2,51-8)을 구분할 수 없다.
따라서, 시청자는 EPG 서비스를 위해 방송국으로부터 함께 보내지는 비액티브 채널 정보로 인하여 블랙 화면(예, 방송이 되지 않아 검은 OSD 위에 '서비스 안됨'라는 글자가 디스플레이됨.)을 볼 수밖에 없다. 이는 채널 업,다운키로 시청자가 조작을 할 때, 51-1 다음에 채널을 다음으로 넘기면 51-2에서는 비액티브 채널이므로 A/V수신이 안되는 검은 화면을 보아야함을 의미한다.
이는 디지털 방송이 본격화되고 많은 가상 채널들이 방송되는 시점에서는 시청자에게 매우 심각한 불편을 줄 수 있다.
본 발명은 상기와 같은 문제점을 해결하기 위한 것으로서, 본 발명의 목적은 VCT 비트스트림 신택스에 비액티브 채널을 구분할 수 있는 식별 정보를 포함시킴으로써, DTV 수신기가 VCT를 파싱함에 의해 액티브 채널과 비액티브 채널을 구분할 수 있도록 하는 VCT 데이터 구조 및 부가 정보 송수신 방법을 제공함에 있다.
도 1은 일반적인 지상파용 VCT 비트스트림 신택스 구조를 보인 도면
도 2는 방송국에서 4개의 가상 채널들로 스케쥴 방송을 하는 예를 보인 도면
도 3은 본 발명에 따른 지상파용 VCT 비트스트림 신택스 구조를 보인 도면
도 4는 본 발명에 따른 케이블용 VCT 비트스트림 신택스 구조를 보인 도면
상기와 같은 목적을 달성하기 위한 본 발명에 따른 VCT 데이터 구조는, 상기 VCT의 비트스트림 신택스에 액티브 채널과 비액티브 채널을 구분할 수 있는 식별 정보가 포함되는 것을 특징으로 한다.
상기 식별 정보는 상기 VCT의 program_number 필드의 값을 '0'으로 하여 비액티브 채널임을 표시하는 것을 특징으로 한다.
상기 식별 정보는 상기 VCT의 service_location_descriptor의 number_elements 필드의 값을 '0'으로 하여 비액티브 채널임을 표시하는 것을 특징으로 한다.
상기 식별 정보는 비액티브 채널인 경우 상기 VCT의 service_location_descriptor를 보내지 않는 것을 특징으로 한다.
상기 식별 정보는 상기 VCT의 미사용 필드의 적어도 한 비트 이상을 할당하여 비액티브 채널임을 표시하는 것을 특징으로 한다.
본 발명에 따른 부가정보 송수신 방법은, VCT의 비트스트림 신택스에 액티브 채널과 비액티브 채널을 구분할 수 있는 식별 정보를 포함시켜 전송하는 송신 단계와, 전송되는 VCT를 파싱한 후 상기 VCT에 정의된 식별 정보로부터 현재 수신되는 채널이 액티브 채널인지 비액티브 채널인지를 판단하는 수신 단계를 포함하여 이루어지는 것을 특징으로 한다.
본 발명은 PSIP 규격에서 액티브 채널과 비액티브 채널을 구분할 수 있는 식별 정보를 VCT의 한 필드로 신택스에 부가함으로써, 현재 방송중인 채널만을 사용자에게 빠르게 보여줄 수 있도록 하는데 있다.
본 발명의 다른 목적, 특징 및 잇점들은 첨부한 도면을 참조한 실시예들의 상세한 설명을 통해 명백해질 것이다.
이하, 본 발명의 바람직한 실시예를 첨부도면을 참조하여 상세히 설명한다.
본 발명은 DTV 수신기가 VCT를 파싱하여 액티브 채널과 비액티브 채널을 구분할 수 있도록 하기 위해서 VCT의 비트스트림 신택스를 수정한다. 즉, 일 예로, 51-2,51-8은 현재는 방송을 하지 않지만 미래에 방송할 채널이라는 것을 DTV 수신기가 알 수 있게 한다. 본 발명은 실시예로, VCT 비트스트림 신택스 내의 program_number 필드, service_location_descriptor, 및 미사용 필드를 비액티브 채널을 인식할 수 있는 식별 정보로 이용한다.
도 3은 이러한 본 발명에 따른 지상파용 VCT의 비트스트림 신택스(syntax)로서, 비액티브 채널인 경우 program_number 필드의 값을 '0'으로 설정한다. 그리고, service_location_descriptor의 오디오, 비디오가 현재 없으므로 number_elements 필드의 값을 '0'으로 하거나 아니면, 비액티브 채널인 경우 service_location_descriptor를 보내지 않는다. 즉, DTV측에서 보면, VCT에 반드시 포함되어야 하는 service_location_descriptor는 액티브 채널일 경우에만 해당하고, 비액티브 채널에 대해서는 반드시 오지않아야 한다.
또한, 비액티브 채널의 보다 명확한 인식을 위해 미사용 필드(reserved field)(예, 6비트짜리)의 1비트를 할당하여 '비액티브 채널'임을 나타내는 플래그를 정의한다. 본 발명에서는 실시예로, 'for' 루프의 반복문 내의 hidden과 service_type 필드 사이에 있는 미사용 필드의 1비트를 '비액티브 채널'임을 나타내는 플래그 즉, 필드로 사용한다. 예를 들어, 상기 비액티브 채널 플래그가 1이면 정상적인 경우(미사용 필드값에서), 0이면 비액티브 채널을 나타내도록 한다.
본 발명은 상기된 세가지를 A/65에 추가하며, 이를 강제 조항으로 할 수도 있다. 이때, 상기된 세가지를 모두 A/65에 추가할 수도 있으며, 그중 적어도 어느 하나 이상만을 A/65에 추가할 수도 있다.
이와 같이, VCT에 비액티브 채널에 대한 정보가 들어있으므로 DTV 수신기는 VCT만 파싱하고도 현재 수신되는 가상 채널이 액티브 채널인지 비액티브 채널인지를 알 수 있다. 예를 들어, VCT 안의 program_number 값이 '0'이고, 미사용 필드를 할당하여 정의한 비액티브 채널 필드가 '0'이며, service_location_descriptor가 전송되지 않으면 현재 전송되는 VCT 비트스트림 신택스 내에 정의된 major_channel_number와 minor_channel_number가 비액티브 채널이라고 판정한다.
이때, 상기 DTV 수신기는 상기와 같은 과정에 의해 비액티브 채널이 검출되면 채널 업, 다운 키에 의한 채널 절환시 상기 비액티브 채널은 스킵시킬 수 있다.
한편, 본 발명에 의한 비액티브 채널 구분 방법은 도 4와 같이 케이블 VCT에도 적용할 수 있다.
이상에서와 같이 본 발명에 따른 가상 채널 테이블 데이타 구조 및 부가 정보 송수신 방법에 의하면, 송신측에서는 비액티브 채널을 구분할 수 있는 식별 정보를 VCT에 포함시켜 송신함으로써, DTV 수신기는 VCT만 파싱하고도 액티브 채널과 비액티브 채널을 구분할 수 있으므로 빠른 채널 전환을 할 수 있다. 또한, 비액티브 채널은 채널 업,다운 키에 의한 채널 절환시 스킵될 수 있으므로 시청자는 방송되지 않는 블랙 화면을 보지않고 채널 서핑(surfing)을 할 수 있다. 그리고, 비액티브 채널을 구애받지 않고 보낼 수 있으므로 보다 풍부한 EPG 서비스가 가능하다.
이상 설명한 내용을 통해 당업자라면 본 발명의 기술 사상을 일탈하지 아니하는 범위에서 다양한 변경 및 수정이 가능함을 알 수 있을 것이다.
따라서, 본 발명의 기술적 범위는 실시예에 기재된 내용으로 한정되는 것이 아니라 특허 청구의 범위에 의하여 정해져야 한다.

Claims (9)

  1. 디지털 방송을 위해 정의된 프로그램 및 시스템 정보 프로토콜(PSIP)에 속하는 테이블 중 가상 채널 테이블(VCT) 데이터 구조에 있어서,
    상기 VCT의 비트스트림 신택스에 액티브 채널과 비액티브 채널을 구분할 수 있는 식별 정보가 포함되는 것을 특징으로 하는 가상 채널 테이블 데이터 구조.
  2. 제 1 항에 있어서, 상기 식별 정보는
    상기 VCT의 program_number 필드의 값을 '0'으로 하여 비액티브 채널임을 표시하는 것을 특징으로 하는 가상 채널 테이블 데이터 구조.
  3. 제 1 항에 있어서, 상기 식별 정보는
    상기 VCT의 service_location_descriptor의 number_elements 필드의 값을 '0'으로 하여 비액티브 채널임을 표시하는 것을 특징으로 하는 가상 채널 테이블 데이터 구조.
  4. 제 1 항에 있어서, 상기 식별 정보는
    비액티브 채널인 경우 상기 VCT 내에 service_location_descriptor를 포함시키지 않는 것을 특징으로 하는 가상 채널 테이블 데이터 구조.
  5. 제 1 항에 있어서, 상기 식별 정보는
    상기 VCT의 미사용 필드의 적어도 한 비트 이상을 할당하여 비액티브 채널임을 표시하는 것을 특징으로 하는 가상 채널 테이블 데이터 구조.
  6. 제 5 항에 있어서, 상기 식별 정보는
    상기 VCT의 미사용 필드는 상기 VCT 비트스트림 신택스의 'for' 루프의 반복문 내에 있는 미사용 필드인 것을 특징으로 하는 가상 채널 테이블 데이터 구조.
  7. 디지털 방송을 위해 정의된 프로그램 및 시스템 정보 프로토콜(PSIP) 내의 가상 채널 테이블(VCT)의 비트스트림 신택스에 액티브 채널과 비액티브 채널을 구분할 수 있는 식별 정보를 포함시켜 전송하는 송신 단계와,
    전송되는 VCT를 파싱한 후 상기 VCT에 정의된 식별 정보로부터 현재 수신되는 채널이 액티브 채널인지 비액티브 채널인지를 판단하는 수신 단계를 포함하여 이루어지는 것을 특징으로 하는 부가정보 송수신 방법.
  8. 제 7 항에 있어서, 상기 송신 단계는
    비액티브 채널인 경우 상기 VCT 안의 program_number 값을 '0'으로, 미사용 필드의 적어도 한 비트 이상을 할당하고 할당된 비트를 '0'으로 설정하고, service_location_descriptor는 전송시키지 않는 것을 특징으로 하는 부가정보 송수신 방법.
  9. 제 8 항에 있어서, 상기 수신 단계는
    파싱된 VCT 비트스트림 신택스에서 program_number 값과 비액티브 채널 필드로 할당된 미사용 필드 값이 '0'으로 설정되고, service_location_descriptor가 전송되지 않으면 현재 수신되는 채널을 비액티브 채널로 판정하는 것을 특징으로 하는 부가정보 송수신 방법.
KR1019990043508A 1999-10-08 1999-10-08 가상 채널 테이블 데이터 구조 및 부가 정보 송수신 방법 KR100348249B1 (ko)

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KR1019990043508A KR100348249B1 (ko) 1999-10-08 1999-10-08 가상 채널 테이블 데이터 구조 및 부가 정보 송수신 방법
CA 2688919 CA2688919C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA2776655A CA2776655C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA2776645A CA2776645C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA 2767311 CA2767311C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA 2688931 CA2688931C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA2837633A CA2837633C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA 2630140 CA2630140C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA 2730368 CA2730368C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA2837643A CA2837643C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA2776418A CA2776418C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA2824562A CA2824562C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA 2575038 CA2575038C (en) 1999-10-08 2000-10-06 Receiving digital broadcast signal including virtual channel table
CA 2688849 CA2688849C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA 2575035 CA2575035C (en) 1999-10-08 2000-10-06 Receiving digital broadcast signal including virtual channel table
CA2837617A CA2837617C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA2824634A CA2824634C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA2837460A CA2837460C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA 2629277 CA2629277C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA2837910A CA2837910C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA2837461A CA2837461C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA 2797143 CA2797143C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA 2689070 CA2689070C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving boradcast signals using the same
CA2730358A CA2730358C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA2837675A CA2837675C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA 2796926 CA2796926C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA 2730840 CA2730840C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA2837640A CA2837640C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA2824564A CA2824564C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA 2575037 CA2575037C (en) 1999-10-08 2000-10-06 Receiving digital broadcast signal including virtual channel table
CA 2796906 CA2796906C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA 2688917 CA2688917C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA 2322909 CA2322909C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA 2730576 CA2730576C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA 2688933 CA2688933C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA2837908A CA2837908C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA2824560A CA2824560C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA 2689061 CA2689061C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA2776412A CA2776412C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA 2688848 CA2688848C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA 2688918 CA2688918C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA 2688851 CA2688851C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA 2797145 CA2797145C (en) 1999-10-08 2000-10-06 Virual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA 2797146 CA2797146C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA2824638A CA2824638C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA2776605A CA2776605C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA 2627816 CA2627816C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA 2689063 CA2689063C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CA 2628000 CA2628000C (en) 1999-10-08 2000-10-06 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
CNB001366521A CN1187981C (zh) 1999-10-08 2000-10-08 广播协议的虚拟频道表及用它广播和接收该广播的方法
US09/684,389 US7051361B1 (en) 1999-10-08 2000-10-10 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US10/892,245 US7448065B2 (en) 1999-10-08 2004-07-16 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US10/892,253 US7051359B2 (en) 1999-10-08 2004-07-16 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US10/892,195 US7100189B2 (en) 1999-10-08 2004-07-16 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US10/892,224 US7073194B2 (en) 1999-10-08 2004-07-16 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US10/892,122 US7448064B2 (en) 1999-10-08 2004-07-16 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US10/892,216 US7080401B2 (en) 1999-10-08 2004-07-16 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US11/088,941 US7469415B2 (en) 1999-10-08 2005-03-25 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US11/980,795 US7620972B2 (en) 1999-10-08 2007-10-31 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US11/980,724 US7603695B2 (en) 1999-10-08 2007-10-31 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US11/980,811 US7620973B2 (en) 1999-10-08 2007-10-31 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US12/320,129 US7802289B2 (en) 1999-10-08 2009-01-16 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US12/320,132 US7779448B2 (en) 1999-10-08 2009-01-16 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US12/320,130 US7779447B2 (en) 1999-10-08 2009-01-16 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US12/379,112 US7735112B2 (en) 1999-10-08 2009-02-12 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US12/379,114 US7757266B2 (en) 1999-10-08 2009-02-12 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US12/379,113 US7748024B2 (en) 1999-10-08 2009-02-12 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US12/461,919 US7958538B2 (en) 1999-10-08 2009-08-27 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US12/461,920 US7882534B2 (en) 1999-10-08 2009-08-27 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US12/591,012 US7831994B2 (en) 1999-10-08 2009-11-04 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US12/591,008 US7814530B2 (en) 1999-10-08 2009-11-04 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US12/591,007 US7814529B2 (en) 1999-10-08 2009-11-04 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US12/721,134 US7882536B2 (en) 1999-10-08 2010-03-10 Virtual channel table for a broadcast protocol and method of braoadcasting and receiving broadcast signals using the same
US12/721,057 US7882535B2 (en) 1999-10-08 2010-03-10 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US12/721,109 US7886331B2 (en) 1999-10-08 2010-03-10 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US13/086,076 US8347330B2 (en) 1999-10-08 2011-04-13 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US13/370,889 US8707367B2 (en) 1999-10-08 2012-02-10 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US13/370,904 US8707368B2 (en) 1999-10-08 2012-02-10 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US13/370,873 US8701142B2 (en) 1999-10-08 2012-02-10 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US13/617,737 US8544041B2 (en) 1999-10-08 2012-09-14 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US13/617,827 US8539522B2 (en) 1999-10-08 2012-09-14 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US13/617,780 US8640155B2 (en) 1999-10-08 2012-09-14 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US13/617,850 US8555307B2 (en) 1999-10-08 2012-09-14 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US13/617,690 US8539521B2 (en) 1999-10-08 2012-09-14 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US13/836,555 US20130219450A1 (en) 1999-10-08 2013-03-15 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US13/929,379 US8683506B2 (en) 1999-10-08 2013-06-27 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US13/939,918 US8707356B2 (en) 1999-10-08 2013-07-11 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US13/939,906 US8677405B2 (en) 1999-10-08 2013-07-11 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US13/939,899 US8707344B2 (en) 1999-10-08 2013-07-11 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US13/939,913 US8707345B2 (en) 1999-10-08 2013-07-11 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US13/970,101 US8739209B2 (en) 1999-10-08 2013-08-19 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US13/970,086 US8726333B2 (en) 1999-10-08 2013-08-19 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US13/970,129 US8732752B2 (en) 1999-10-08 2013-08-19 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US13/970,115 US8752082B2 (en) 1999-10-08 2013-08-19 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/093,207 US8782695B2 (en) 1999-10-08 2013-11-29 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/093,303 US9078032B2 (en) 1999-10-08 2013-11-29 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/093,302 US8997147B2 (en) 1999-10-08 2013-11-29 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/093,209 US8978063B2 (en) 1999-10-08 2013-11-29 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/093,297 US9038101B2 (en) 1999-10-08 2013-11-29 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/282,583 US8898699B2 (en) 1999-10-08 2014-05-20 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/282,607 US8910205B2 (en) 1999-10-08 2014-05-20 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/282,550 US8910204B2 (en) 1999-10-08 2014-05-20 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/282,672 US8966529B2 (en) 1999-10-08 2014-05-20 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/282,640 US8938754B2 (en) 1999-10-08 2014-05-20 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/470,407 US9003444B2 (en) 1999-10-08 2014-08-27 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/470,303 US9043836B2 (en) 1999-10-08 2014-08-27 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/471,171 US8984553B2 (en) 1999-10-08 2014-08-28 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/471,299 US9003469B2 (en) 1999-10-08 2014-08-28 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/473,577 US9021523B2 (en) 1999-10-08 2014-08-29 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/473,478 US9015753B2 (en) 1999-10-08 2014-08-29 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/473,354 US9032436B2 (en) 1999-10-08 2014-08-29 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/473,732 US9021524B2 (en) 1999-10-08 2014-08-29 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/473,737 US9015754B2 (en) 1999-10-08 2014-08-29 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/473,423 US9015752B2 (en) 1999-10-08 2014-08-29 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/605,544 US9084009B2 (en) 1999-10-08 2015-01-26 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/606,444 US9088806B2 (en) 1999-10-08 2015-01-27 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/606,823 US9124927B2 (en) 1999-10-08 2015-01-27 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/610,619 US9124938B2 (en) 1999-10-08 2015-01-30 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/610,732 US9113179B2 (en) 1999-10-08 2015-01-30 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/794,536 US9307282B2 (en) 1999-10-08 2015-07-08 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/794,404 US9525915B2 (en) 1999-10-08 2015-07-08 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/799,216 US9525916B2 (en) 1999-10-08 2015-07-14 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/799,340 US9351042B2 (en) 1999-10-08 2015-07-14 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/800,328 US9300988B2 (en) 1999-10-08 2015-07-15 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/800,349 US9294812B2 (en) 1999-10-08 2015-07-15 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US14/803,502 US9307271B2 (en) 1999-10-08 2015-07-20 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
US15/350,937 US10003850B2 (en) 1999-10-08 2016-11-14 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100447298B1 (ko) * 2002-06-29 2004-09-07 주식회사 휴맥스 디지털 방송수신기에서의 전자 프로그램 안내 관리방법
KR100868040B1 (ko) * 2008-04-21 2008-11-11 엘지전자 주식회사 디지털 방송 신호 제어 방법
KR100868039B1 (ko) * 2008-04-21 2008-11-11 엘지전자 주식회사 디지털 방송 신호 제어 방법
KR100868041B1 (ko) * 2008-04-21 2008-11-11 엘지전자 주식회사 디지털 방송 신호 제어 방법
KR100868351B1 (ko) * 2008-04-21 2008-11-12 엘지전자 주식회사 디지털 방송 신호 제어 방법
KR100896485B1 (ko) * 2008-04-21 2009-05-08 엘지전자 주식회사 디지털 방송 신호 수신기 및 그 방법
US8170009B2 (en) 2004-06-30 2012-05-01 Samsung Electronics Co., Ltd. Method and apparatus for receiving broadcasting data

Families Citing this family (113)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100348249B1 (ko) * 1999-10-08 2002-08-09 엘지전자 주식회사 가상 채널 테이블 데이터 구조 및 부가 정보 송수신 방법
JP2002223396A (ja) * 2001-01-25 2002-08-09 Funai Electric Co Ltd デジタル／アナログ放送受信機におけるチャンネル選択装置
JP2002232795A (ja) * 2001-01-31 2002-08-16 Funai Electric Co Ltd デジタル／アナログ放送受信機のチャンネル選択装置及び同装置を備えたデジタル／アナログ放送受信機
JP2002232796A (ja) * 2001-01-31 2002-08-16 Funai Electric Co Ltd デジタル／アナログ放送受信機のチャンネル選択装置
JP2002232793A (ja) * 2001-01-31 2002-08-16 Funai Electric Co Ltd デジタル／アナログ放送受信機のチャンネル選択装置及び同装置を備えたデジタル／アナログ放送受信機
JP4552333B2 (ja) * 2001-01-31 2010-09-29 船井電機株式会社 デジタル／アナログ放送受信機のチャンネル選択装置及び同装置を備えたデジタル／アナログ放送受信機
JP2002271758A (ja) * 2001-03-13 2002-09-20 Sony Corp 送信装置、送信方法、受信装置、受信方法および送受信システム
JP3650993B2 (ja) * 2001-05-15 2005-05-25 船井電機株式会社 デジタル放送信号受信装置
JP3632205B2 (ja) * 2001-05-15 2005-03-23 船井電機株式会社 受信装置
JP3522234B2 (ja) * 2001-05-22 2004-04-26 船井電機株式会社 受信装置
US8910203B2 (en) * 2001-06-19 2014-12-09 Jlb Ventures Llc Method for displaying channel listings in an electronic program guide and an electronic program guide implementing the method
US20030033612A1 (en) * 2001-08-07 2003-02-13 Schwalb Eddie M. Software appliance method and system
JP3918917B2 (ja) * 2002-01-11 2007-05-23 船井電機株式会社 Ｅｐｇ画面表示機能を備えたデジタル／アナログ放送受像機
JP2003244565A (ja) * 2002-02-15 2003-08-29 Fujitsu Ltd 装置、プログラムおよび仮想チャンネル設定方法
US7027593B2 (en) * 2002-05-22 2006-04-11 Avaya Technology Corp. Apparatus and method for echo control
IL154674A0 (en) * 2003-02-27 2003-09-17 Method and apparatus for providing cross channel programming through digital television interactive applications
KR20040082035A (ko) * 2003-03-17 2004-09-24 엘지전자 주식회사 모든 채널의 신호 세기 디스플레이 방법
US7757251B2 (en) * 2003-03-18 2010-07-13 Time Warner Interactive Video Group Inc. Technique for providing program guide data through a communications network delivering programming content
JP2004297544A (ja) * 2003-03-27 2004-10-21 Matsushita Electric Ind Co Ltd 遠隔制御装置
US20050005295A1 (en) * 2003-06-19 2005-01-06 Chu Hui-Ling 2-Dimension channel coding system
KR100429688B1 (ko) * 2003-06-21 2004-05-03 주식회사 휴맥스 모자이크 이피지 서비스에서의 오디오 송신 및 수신방법
US7266342B2 (en) * 2003-09-11 2007-09-04 Daimlerchrysler Corporation Satellite to vehicle data communication method
KR100606827B1 (ko) * 2004-01-27 2006-08-01 엘지전자 주식회사 가상 채널 테이블 데이터 구조, 전송 스트림 판별 방법, 및 방송 수신기
WO2005117426A1 (en) * 2004-05-14 2005-12-08 Thomson Licensing Automatic channel search system and method
US20060277577A1 (en) * 2005-06-07 2006-12-07 Nokia Corporation Terminal, method and computer program product for performing operations with respect to broadcast content
US7490341B2 (en) * 2005-06-07 2009-02-10 Nokia Corporation System and associated terminal, method and computer program product for directional channel browsing of broadcast content
CN100426853C (zh) * 2005-07-04 2008-10-15 乐金电子（惠州）有限公司 传送流判别方法
KR100670588B1 (ko) * 2005-07-27 2007-01-17 삼성전자주식회사 녹화신호 처리장치 및 그 제어방법
KR100691121B1 (ko) * 2005-08-29 2007-03-09 엘지전자 주식회사 방송매체 정보의 설정장치 및 방법과, 방송매체 정보의 판단방법
US8229983B2 (en) 2005-09-27 2012-07-24 Qualcomm Incorporated Channel switch frame
US8670437B2 (en) * 2005-09-27 2014-03-11 Qualcomm Incorporated Methods and apparatus for service acquisition
KR100736618B1 (ko) * 2005-10-10 2007-07-09 엘지전자 주식회사 Ｔｓｉｄ 검출 방법
JP2007110391A (ja) * 2005-10-13 2007-04-26 Funai Electric Co Ltd 放送受信機
KR100755695B1 (ko) * 2005-11-01 2007-09-05 삼성전자주식회사 방송 수신 장치를 통하여 인터넷에 접속하기 위한 방법 및이를 위한 장치
US7814525B2 (en) * 2006-02-09 2010-10-12 Sony Corporation Navigation within switched digital streamed content
TWI315157B (en) * 2006-04-06 2009-09-21 Au Optronics Corporatio Method, system and storage medium for changing channel
KR20070109723A (ko) * 2006-05-12 2007-11-15 엘지전자 주식회사 Ｐｓｉｐ에서 이벤트의 스케쥴에 관한 방송 신호, 상기방송 신호를 제어하는 방법 및 이를 처리하는 방송 수신기
KR100809757B1 (ko) * 2006-05-24 2008-03-04 엘지전자 주식회사 디지털 케이블 방송 수신이 가능한 영상표시기기의 채널제어장치 및 방법
KR101285380B1 (ko) * 2006-09-07 2013-07-10 엘지전자 주식회사 디지털 방송 신호를 처리하는 장치 및 방법
US8345743B2 (en) * 2006-11-14 2013-01-01 Qualcomm Incorporated Systems and methods for channel switching
EP2098077A2 (en) * 2006-11-15 2009-09-09 QUALCOMM Incorporated Systems and methods for applications using channel switch frames
KR101367102B1 (ko) * 2007-04-09 2014-02-25 삼성전자주식회사 방송 서비스 정보를 처리하는 방법 및 이를 이용한하이브리드 ｔｖ
JP2008294871A (ja) * 2007-05-25 2008-12-04 Funai Electric Co Ltd デジタル放送受信装置
US20080301744A1 (en) * 2007-05-30 2008-12-04 General Instrument Corporation Method and Apparatus for Locating Content in an Internet Protocol Television (IPTV) System
US7954020B2 (en) * 2007-06-06 2011-05-31 Sony Computer Entertainment Inc. Method and apparatus for testing a circuit
KR101486357B1 (ko) * 2007-07-12 2015-01-26 엘지전자 주식회사 방송 신호 송수신 방법 및 방송 신호 수신 장치
KR101405975B1 (ko) 2007-07-23 2014-06-12 엘지전자 주식회사 디지털 방송 시스템 및 데이터 처리 방법
KR101427111B1 (ko) * 2007-08-01 2014-08-07 삼성전자 주식회사 영상처리장치 및 그 제어방법
US8776143B2 (en) * 2007-08-24 2014-07-08 Lg Electronics Inc. Digital broadcasting system and method of processing data in digital broadcasting system
US8683529B2 (en) * 2007-08-24 2014-03-25 Lg Electronics Inc. Digital broadcasting system and method of processing data in digital broadcasting system
US8051451B2 (en) * 2007-08-24 2011-11-01 Lg Electronics, Inc. Digital broadcasting system and method of processing data in digital broadcasting system
US8635641B2 (en) * 2007-12-05 2014-01-21 Lg Electronics Inc. Method of performing parental control a channel and an IPTV receiver
US8893205B2 (en) 2007-12-05 2014-11-18 Lg Electronics Inc. IPTV receiver and method of providing channel map management information
US8893200B2 (en) * 2007-12-05 2014-11-18 Lg Electronics Inc. IPTV receiver and method of acquiring a resource for an IPTV service
US8484689B2 (en) * 2007-12-05 2013-07-09 Lg Electronics Inc. IPTV receiver and method of discovering an IPTV service
US8869219B2 (en) * 2007-12-05 2014-10-21 Lg Electronics Inc. Method for controlling a channel and an IPTV receiver
US8397256B2 (en) * 2007-12-05 2013-03-12 Lg Electronics Inc. IPTV receiver and method of providing channel map information
US8813155B2 (en) * 2007-12-05 2014-08-19 Lg Electronics Inc. Method for receiving service information data and an IPTV receiver
US8432496B2 (en) 2008-04-11 2013-04-30 Thomson Licensing Auto channel assignment for live productions
US8422509B2 (en) * 2008-08-22 2013-04-16 Lg Electronics Inc. Method for processing a web service in an NRT service and a broadcast receiver
US8823772B2 (en) * 2008-12-18 2014-09-02 Lg Electronics Inc. Digital broadcasting reception method capable of displaying stereoscopic image, and digital broadcasting reception apparatus using the same
US8854428B2 (en) * 2009-03-19 2014-10-07 Lg Electronics, Inc. Method for processing three dimensional (3D) video signal and digital broadcast receiver for performing the method
CA2758104C (en) 2009-04-07 2015-04-07 Lg Electronics Inc. Broadcast transmitter, broadcast receiver and 3d video data processing method thereof
US8644188B1 (en) * 2009-06-25 2014-02-04 Amazon Technologies, Inc. Providing virtual networking functionality for managed computer networks
KR100995053B1 (ko) 2010-02-22 2010-11-19 엘지전자 주식회사 디지털 수신기 및 디지털 수신기의 인액티브 채널 처리 방법
US20110216083A1 (en) * 2010-03-03 2011-09-08 Vizio, Inc. System, method and apparatus for controlling brightness of a device
US8839338B2 (en) * 2012-03-28 2014-09-16 Sony Corporation Service usage reporting data transport
US8752119B2 (en) * 2010-05-14 2014-06-10 Time Warner Cable Enterprises Llc Methods and apparatus for creating customized service related information for customer devices
US9749666B2 (en) * 2010-12-31 2017-08-29 Lg Innotek Co., Ltd. Display apparatus
US11943517B2 (en) * 2011-01-04 2024-03-26 Interdigital Madison Patent Holdings, Sas Method and apparatus for remotely tuning channels using DLNA DMS service
US9009756B2 (en) 2011-04-13 2015-04-14 Comcast Cable Communications, Llc Virtual channel map masking
US8713646B2 (en) 2011-12-09 2014-04-29 Erich Stuntebeck Controlling access to resources on a network
US10404615B2 (en) 2012-02-14 2019-09-03 Airwatch, Llc Controlling distribution of resources on a network
US9680763B2 (en) 2012-02-14 2017-06-13 Airwatch, Llc Controlling distribution of resources in a network
US10257194B2 (en) 2012-02-14 2019-04-09 Airwatch Llc Distribution of variably secure resources in a networked environment
US20130219434A1 (en) * 2012-02-20 2013-08-22 Sony Corporation 3d body scan input to tv for virtual fitting of apparel presented on retail store tv channel
US9584875B2 (en) * 2012-09-05 2017-02-28 Verizon Patent And Licensing Inc. Integrated video content
US9247432B2 (en) 2012-10-19 2016-01-26 Airwatch Llc Systems and methods for controlling network access
US8826432B2 (en) 2012-12-06 2014-09-02 Airwatch, Llc Systems and methods for controlling email access
US8862868B2 (en) 2012-12-06 2014-10-14 Airwatch, Llc Systems and methods for controlling email access
US9021037B2 (en) 2012-12-06 2015-04-28 Airwatch Llc Systems and methods for controlling email access
US8978110B2 (en) 2012-12-06 2015-03-10 Airwatch Llc Systems and methods for controlling email access
US20140280955A1 (en) 2013-03-14 2014-09-18 Sky Socket, Llc Controlling Electronically Communicated Resources
US9378350B2 (en) 2013-03-15 2016-06-28 Airwatch Llc Facial capture managing access to resources by a device
US9401915B2 (en) 2013-03-15 2016-07-26 Airwatch Llc Secondary device as key for authorizing access to resources
US9787686B2 (en) 2013-04-12 2017-10-10 Airwatch Llc On-demand security policy activation
US10754966B2 (en) 2013-04-13 2020-08-25 Airwatch Llc Time-based functionality restrictions
US8914013B2 (en) 2013-04-25 2014-12-16 Airwatch Llc Device management macros
US9426162B2 (en) 2013-05-02 2016-08-23 Airwatch Llc Location-based configuration policy toggling
US9246918B2 (en) 2013-05-10 2016-01-26 Airwatch Llc Secure application leveraging of web filter proxy services
US9058495B2 (en) 2013-05-16 2015-06-16 Airwatch Llc Rights management services integration with mobile device management
US9584437B2 (en) 2013-06-02 2017-02-28 Airwatch Llc Resource watermarking and management
US9900261B2 (en) 2013-06-02 2018-02-20 Airwatch Llc Shared resource watermarking and management
US20140358703A1 (en) 2013-06-04 2014-12-04 SkySocket, LLC Item Delivery Optimization
US9270777B2 (en) 2013-06-06 2016-02-23 Airwatch Llc Social media and data sharing controls for data security purposes
US9535857B2 (en) 2013-06-25 2017-01-03 Airwatch Llc Autonomous device interaction
US8924608B2 (en) 2013-06-25 2014-12-30 Airwatch Llc Peripheral device management
US8806217B2 (en) 2013-07-03 2014-08-12 Sky Socket, Llc Functionality watermarking and management
US8756426B2 (en) 2013-07-03 2014-06-17 Sky Socket, Llc Functionality watermarking and management
US8775815B2 (en) 2013-07-03 2014-07-08 Sky Socket, Llc Enterprise-specific functionality watermarking and management
US9665723B2 (en) 2013-08-15 2017-05-30 Airwatch, Llc Watermarking detection and management
US9516005B2 (en) 2013-08-20 2016-12-06 Airwatch Llc Individual-specific content management
US10129242B2 (en) 2013-09-16 2018-11-13 Airwatch Llc Multi-persona devices and management
US9258301B2 (en) 2013-10-29 2016-02-09 Airwatch Llc Advanced authentication techniques
US9544306B2 (en) 2013-10-29 2017-01-10 Airwatch Llc Attempted security breach remediation
WO2016003137A1 (ko) 2014-06-30 2016-01-07 엘지전자 주식회사 방송 수신 장치, 방송 수신 장치의 동작 방법, 방송 수신 장치와 연동하는 연동 장치 및 연동 장치의 동작 방법
KR102270360B1 (ko) * 2014-10-02 2021-06-30 삼성전자 주식회사 디스플레이장치 및 그 제어방법
US9813661B2 (en) * 2015-03-05 2017-11-07 Watchanator, Inc. System and method for determining an inactive television channel
US10015671B2 (en) * 2016-01-19 2018-07-03 T-Mobile Usa, Inc. Network service access control
FR3050393B1 (fr) * 2016-04-22 2021-03-19 Bosch Gmbh Robert Poste de travail et unite de commande de son fonctionnement
US10805688B1 (en) * 2016-12-02 2020-10-13 Didja, Inc. Locally relayed broadcast and community service television
WO2023048590A1 (ru) * 2021-09-21 2023-03-30 Общество с ограниченной ответственностью "Цифра" Система и способ формирования виртуального канала
WO2023191656A1 (ru) * 2022-03-31 2023-10-05 Общество с ограниченной ответственностью "Цифра" Система формирования и передачи транспортного потока

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5597709A (en) * 1994-01-27 1997-01-28 Human Genome Sciences, Inc. Human growth hormone splice variants hGHV-2(88) and hGHV-3(53)
US5682597A (en) * 1995-06-15 1997-10-28 International Business Machines Corporation Hybrid video-on-demand based on a near-video-on-demand system
US5894320A (en) * 1996-05-29 1999-04-13 General Instrument Corporation Multi-channel television system with viewer-selectable video and audio
EP0823823A3 (en) 1996-08-07 2001-02-14 Matsushita Electric Industrial Co., Ltd. Digital broadcasting system
US6133910A (en) * 1996-09-20 2000-10-17 Echostar Engineering Corp. Apparatus and method for integrating a plurality of video sources
JPH10126752A (ja) * 1996-10-23 1998-05-15 Matsushita Electric Ind Co Ltd 放送システム
US5982411A (en) * 1996-12-18 1999-11-09 General Instrument Corporation Navigation among grouped television channels
US6369861B1 (en) 1997-03-31 2002-04-09 Matsushita Electric Industrial Co., Ltd. Program selection system for a digital television receiver
US6111611A (en) 1997-07-10 2000-08-29 Thomson Consumer Electronics System for forming and processing program specific information suitable for terrestrial, cable or satellite broadcast
US6115074A (en) 1997-07-10 2000-09-05 Ozkan; Mehmet Kemal System for forming and processing program map information suitable for terrestrial, cable or satellite broadcast
JP4221624B2 (ja) 1998-02-12 2009-02-12 ソニー株式会社 Ｅｐｇ送信装置および方法、ｅｐｇ受信装置および方法、並びに記録媒体
US7032236B1 (en) * 1998-02-20 2006-04-18 Thomson Licensing Multimedia system for processing program guides and associated multimedia objects
US6483547B1 (en) * 1998-03-03 2002-11-19 General Instrument Corporation Transmission signal ID for analog television broadcasts
US6792616B1 (en) * 1998-05-01 2004-09-14 Scientific-Atlanta, Inc. System and method for providing a plurality of programming services in a television system
JP4066212B2 (ja) * 1998-06-10 2008-03-26 船井電機株式会社 デジタル放送受信機及びその制御方法
US6763522B1 (en) * 1998-06-30 2004-07-13 Sony Corporation System and method for a digital television electronic program guide
US6661472B2 (en) 1998-09-30 2003-12-09 Sony Corporation Channel selection in digital television
US6137539A (en) * 1998-10-09 2000-10-24 Matshushita Electric Industrial Co, Ltd Digital television status display
KR100348249B1 (ko) 1999-10-08 2002-08-09 엘지전자 주식회사 가상 채널 테이블 데이터 구조 및 부가 정보 송수신 방법
US6775843B1 (en) 1999-10-14 2004-08-10 Sony Corporation Method and apparatus for digital TV channel mapping
US6785903B1 (en) * 2000-04-05 2004-08-31 K Tech Telecommunications, Inc. Digital television translator with PSIP update
US7877769B2 (en) * 2000-04-17 2011-01-25 Lg Electronics Inc. Information descriptor and extended information descriptor data structures for digital television signals
US6751713B1 (en) * 2000-06-05 2004-06-15 Sony Corporation Method and system for scheduled activation of system information tables in digital transport streams
US6861472B2 (en) * 2000-12-28 2005-03-01 General Electric Company Poly(arylene ether)-polyolefin compositions and articles derived therefrom
TW562962B (en) * 2002-01-15 2003-11-21 Chi Mei Optoelectronics Corp Liquid crystal display device
KR100463544B1 (ko) 2002-12-14 2004-12-29 엘지전자 주식회사 채널 등화 장치 및 이를 이용한 디지털 ｔｖ 수신기
KR100745268B1 (ko) 2005-06-20 2007-08-01 엘지전자 주식회사 디지털 방송 신호의 부가 기능 제공 방법
KR100691121B1 (ko) 2005-08-29 2007-03-09 엘지전자 주식회사 방송매체 정보의 설정장치 및 방법과, 방송매체 정보의 판단방법
KR20070106325A (ko) 2006-04-28 2007-11-01 엘지전자 주식회사 디지털 방송 신호와 상기 신호를 처리하는 장치 및 방법
KR101285380B1 (ko) 2006-09-07 2013-07-10 엘지전자 주식회사 디지털 방송 신호를 처리하는 장치 및 방법

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100447298B1 (ko) * 2002-06-29 2004-09-07 주식회사 휴맥스 디지털 방송수신기에서의 전자 프로그램 안내 관리방법
US8170009B2 (en) 2004-06-30 2012-05-01 Samsung Electronics Co., Ltd. Method and apparatus for receiving broadcasting data
KR100868040B1 (ko) * 2008-04-21 2008-11-11 엘지전자 주식회사 디지털 방송 신호 제어 방법
KR100868039B1 (ko) * 2008-04-21 2008-11-11 엘지전자 주식회사 디지털 방송 신호 제어 방법
KR100868041B1 (ko) * 2008-04-21 2008-11-11 엘지전자 주식회사 디지털 방송 신호 제어 방법
KR100868351B1 (ko) * 2008-04-21 2008-11-12 엘지전자 주식회사 디지털 방송 신호 제어 방법
KR100896485B1 (ko) * 2008-04-21 2009-05-08 엘지전자 주식회사 디지털 방송 신호 수신기 및 그 방법

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US8910205B2 (en) 2014-12-09
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US9038101B2 (en) 2015-05-19
US9294812B2 (en) 2016-03-22
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US20140373069A1 (en) 2014-12-18
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US7051361B1 (en) 2006-05-23
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