KR100690725B1 - 위성방송수신기의 채널 전환 장치 - Google Patents
위성방송수신기의 채널 전환 장치 Download PDFInfo
- Publication number
- KR100690725B1 KR100690725B1 KR1020040071743A KR20040071743A KR100690725B1 KR 100690725 B1 KR100690725 B1 KR 100690725B1 KR 1020040071743 A KR1020040071743 A KR 1020040071743A KR 20040071743 A KR20040071743 A KR 20040071743A KR 100690725 B1 KR100690725 B1 KR 100690725B1
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- South Korea
- Prior art keywords
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- broadcast
- broadcast channel
- walsh
- walsh code
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- Expired - Fee Related
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- 238000011084 recovery Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0064—Concatenated codes
- H04L1/0065—Serial concatenated codes
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- 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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0045—Arrangements at the receiver end
- H04L1/0054—Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0071—Use of interleaving
-
- 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
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
-
- 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
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4383—Accessing a communication channel
- H04N21/4384—Accessing a communication channel involving operations to reduce the access time, e.g. fast-tuning for reducing channel switching latency
-
- 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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
- H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
- H04N21/6143—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a satellite
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/20—Adaptations for transmission via a GHz frequency band, e.g. via satellite
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/0007—Code type
- H04J13/004—Orthogonal
- H04J13/0048—Walsh
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/16—Code allocation
- H04J13/18—Allocation of orthogonal codes
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Artificial Intelligence (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Circuits Of Receivers In General (AREA)
- Radio Relay Systems (AREA)
Abstract
Description
Claims (4)
- 채널 선택에 따라 9개의 CDM(Code Division Multiplexing) 복조된 월시코드를 출력하는 CDM 복조기와,순차적 채널 선택에 의해 현재 선택된 방송채널의 월시코드와 상기 현재 선택된 방송채널의 월시코드와 다른 월시코드를 갖는 상,하위의 첫번째 인접채널의 월시코드를 각각 디인터리빙하여 인터리빙으로 변경된 월시코드를 복구하는 방송채널복원 수단과,상기 복구된 월시코드 중 현재 선택된 방송채널의 월시코드를 선택하는 선택 수단을 포함하며, 여기서, 상기 방송채널복원 수단은 각각의 방송채널에 2개씩 할당되는 6개의 비트 디인터리버로 구성되는 것을 특징으로 하는 위성방송수신기의 채널 전환 장치.
- 삭제
- 삭제
- 삭제
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040071743A KR100690725B1 (ko) | 2004-09-08 | 2004-09-08 | 위성방송수신기의 채널 전환 장치 |
JP2005252739A JP2006081176A (ja) | 2004-09-08 | 2005-08-31 | 衛星dmb受信装置及び方法 |
EP05019450.5A EP1638226B1 (en) | 2004-09-08 | 2005-09-07 | Method and apparatus for receiving digital multimedia broadcast (DMB) via satellite |
US11/223,392 US7836471B2 (en) | 2004-09-08 | 2005-09-08 | Apparatus for receiving satellite DMB and method thereof |
CNB2005101036961A CN100508618C (zh) | 2004-09-08 | 2005-09-08 | 接收卫星数字多媒体广播的装置及其方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040071743A KR100690725B1 (ko) | 2004-09-08 | 2004-09-08 | 위성방송수신기의 채널 전환 장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20060022942A KR20060022942A (ko) | 2006-03-13 |
KR100690725B1 true KR100690725B1 (ko) | 2007-03-09 |
Family
ID=36075447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020040071743A Expired - Fee Related KR100690725B1 (ko) | 2004-09-08 | 2004-09-08 | 위성방송수신기의 채널 전환 장치 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7836471B2 (ko) |
EP (1) | EP1638226B1 (ko) |
JP (1) | JP2006081176A (ko) |
KR (1) | KR100690725B1 (ko) |
CN (1) | CN100508618C (ko) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100640338B1 (ko) * | 2004-09-20 | 2006-10-30 | 삼성전자주식회사 | 채널 전환 시 화면의 끊어짐이 없는 디지털 멀티미디어방송 수신 방법과 장치 |
US20060268994A1 (en) * | 2005-05-27 | 2006-11-30 | Samsung Electronics Co., Ltd. | Digital broadcasting reception terminal and method for processing digital broadcasting data using the same |
KR100800895B1 (ko) * | 2006-02-06 | 2008-02-04 | 삼성전자주식회사 | 디지털 방송 수신 단말기에서 채널 변경 속도를 향상시키기위한 장치 및 방법 |
FR2898236A1 (fr) * | 2006-03-03 | 2007-09-07 | Thomson Licensing Sas | Procede de transmission de flux audiovisuels en anticipant les commandes de l'utilisateurs, recepteur et emetteur pour la mise en oeuvre du procede |
EP1879376A3 (en) | 2006-06-13 | 2011-04-06 | Samsung Electronics Co., Ltd. | Fast channel switching method and apparatus for digital broadcast receiver |
US9077937B2 (en) * | 2008-11-06 | 2015-07-07 | Alcatel Lucent | Method and apparatus for fast channel change |
KR101574345B1 (ko) * | 2009-06-08 | 2015-12-03 | 엘지전자 주식회사 | 단말기에서의 방송 프로그램 정보를 업데이트 하는 방법 및 이를 적용한 이동 통신 단말기 |
TWI692945B (zh) * | 2019-08-19 | 2020-05-01 | 瑞昱半導體股份有限公司 | 疊代解碼電路及解碼方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001069576A (ja) | 1999-06-11 | 2001-03-16 | Texas Instr Inc <Ti> | 無線移動通信セッション開始のための改良型ランダムアクセス・プリアンブル・コーディング |
KR20010028203A (ko) * | 1999-09-18 | 2001-04-06 | 윤종용 | 비동기 이동통신시스템에서 보조동기채널들을 구비하는 동기 이동통신시스템으로의 핸드오프 수행장치 및 방법 |
KR20040032124A (ko) * | 2004-03-08 | 2004-04-14 | 유흥균 | 위성 디지털 멀티미디어 방송 (DMB : digital multimediabroadcasting)시스템을 위한 2진 정진폭 코드분할다중화(CDM : code division multiplexing)시스템의 설계방법과 장치구성 |
KR20050035625A (ko) * | 2003-10-14 | 2005-04-19 | 삼성전자주식회사 | 위성 방송 수신기 및 그의 위성 방송 수신 방법 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3879231B2 (ja) | 1997-02-24 | 2007-02-07 | ヤマハ株式会社 | ディジタルチューナおよびそのチャンネル切換方法 |
US5907582A (en) * | 1997-08-11 | 1999-05-25 | Orbital Sciences Corporation | System for turbo-coded satellite digital audio broadcasting |
US6198719B1 (en) * | 1998-02-27 | 2001-03-06 | Nortel Networks Limited | Bi-orthogonal code division multiple access system |
JP2000115003A (ja) * | 1998-09-30 | 2000-04-21 | Mitsubishi Electric Corp | デジタル放送受信装置 |
US6728202B1 (en) * | 1998-12-24 | 2004-04-27 | Agere Systems Inc. | Code division multiplex satellite broadcasting system |
US6378101B1 (en) * | 1999-01-27 | 2002-04-23 | Agere Systems Guardian Corp. | Multiple program decoding for digital audio broadcasting and other applications |
DE10027216B4 (de) * | 1999-05-31 | 2008-10-16 | Electronics And Telecommunications Research Institute | Vorrichtung und Verfahren zum Modulieren einer Datennachricht durch Verwendung von Codes mit orthogonalem veränderlichem Spreizungsfaktor (OVSF) in einem Mobilkommunikationssystem |
US6606724B1 (en) * | 2000-01-28 | 2003-08-12 | Conexant Systems, Inc. | Method and apparatus for decoding of a serially concatenated block and convolutional code |
JP2001268027A (ja) | 2000-03-23 | 2001-09-28 | Toshiba Corp | データ伝送システム、データ送信装置およびデータ受信装置 |
JP4153646B2 (ja) | 2000-03-24 | 2008-09-24 | 株式会社東芝 | 情報データ伝送システムとその送信装置及び受信装置 |
JP2001358668A (ja) * | 2000-06-16 | 2001-12-26 | Pioneer Electronic Corp | デジタル放送用受信装置 |
US7113538B1 (en) * | 2000-11-01 | 2006-09-26 | Nortel Networks Limited | Time diversity searcher and scheduling method |
JP2003274303A (ja) | 2002-03-18 | 2003-09-26 | Sony Corp | ディジタル放送受信装置、車載装置、ディジタル放送受信の案内方法、ディジタル放送受信の案内方法のプログラム及びディジタル放送受信の案内方法のプログラムを記録した記録媒体 |
JP3731554B2 (ja) | 2002-03-19 | 2006-01-05 | ソニー株式会社 | 信号処理装置、信号処理方法 |
US7236512B2 (en) * | 2002-09-09 | 2007-06-26 | Qualcomm Incorporated | Code channel allocations in a wireless communications system |
KR100447772B1 (ko) | 2002-10-31 | 2004-09-08 | 에스케이 텔레콤주식회사 | 코드 분할 다중 방식의 디지탈 티브이의 채널 전환 장치 |
US20060015908A1 (en) * | 2004-06-30 | 2006-01-19 | Nokia Corporation | Multiple services within a channel-identification in a device |
-
2004
- 2004-09-08 KR KR1020040071743A patent/KR100690725B1/ko not_active Expired - Fee Related
-
2005
- 2005-08-31 JP JP2005252739A patent/JP2006081176A/ja active Pending
- 2005-09-07 EP EP05019450.5A patent/EP1638226B1/en not_active Not-in-force
- 2005-09-08 US US11/223,392 patent/US7836471B2/en not_active Expired - Fee Related
- 2005-09-08 CN CNB2005101036961A patent/CN100508618C/zh not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001069576A (ja) | 1999-06-11 | 2001-03-16 | Texas Instr Inc <Ti> | 無線移動通信セッション開始のための改良型ランダムアクセス・プリアンブル・コーディング |
KR20010028203A (ko) * | 1999-09-18 | 2001-04-06 | 윤종용 | 비동기 이동통신시스템에서 보조동기채널들을 구비하는 동기 이동통신시스템으로의 핸드오프 수행장치 및 방법 |
KR20050035625A (ko) * | 2003-10-14 | 2005-04-19 | 삼성전자주식회사 | 위성 방송 수신기 및 그의 위성 방송 수신 방법 |
KR20040032124A (ko) * | 2004-03-08 | 2004-04-14 | 유흥균 | 위성 디지털 멀티미디어 방송 (DMB : digital multimediabroadcasting)시스템을 위한 2진 정진폭 코드분할다중화(CDM : code division multiplexing)시스템의 설계방법과 장치구성 |
Also Published As
Publication number | Publication date |
---|---|
KR20060022942A (ko) | 2006-03-13 |
US20060064727A1 (en) | 2006-03-23 |
EP1638226A2 (en) | 2006-03-22 |
CN1747554A (zh) | 2006-03-15 |
JP2006081176A (ja) | 2006-03-23 |
EP1638226A3 (en) | 2011-05-11 |
CN100508618C (zh) | 2009-07-01 |
US7836471B2 (en) | 2010-11-16 |
EP1638226B1 (en) | 2017-11-15 |
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