JP7319403B2 - レイヤードディビジョンマルチプレキシングを利用した信号マルチプレキシング装置および信号マルチプレキシング方法 - Google Patents
レイヤードディビジョンマルチプレキシングを利用した信号マルチプレキシング装置および信号マルチプレキシング方法 Download PDFInfo
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- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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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
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4348—Demultiplexing of additional data and video streams
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
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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
- H04L1/0041—Arrangements at the transmitter end
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- H—ELECTRICITY
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- 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
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- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440227—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by decomposing into layers, e.g. base layer and one or more enhancement layers
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- H04J2011/0013—Combination with other multiplexing techniques with TDM/TDMA
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
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Description
Claims (2)
- エンハンストレイヤ信号のパワーを低減することによって、パワーリデューストエンハンストレイヤ信号を生成するように構成されたインジェクションレベルコントローラと、
コアレイヤ信号と前記パワーリデューストエンハンストレイヤ信号とを組み合わせることによって、マルチプレキシングされた信号を生成するように構成された結合器と、
前記マルチプレキシングされた信号のパワーを、前記コアレイヤ信号に相応するパワーレベルに低減するように構成されたパワーノーマライザと、
インターリービングを実行することによって、タイムインターリービングされた信号を生成するように構成されたタイムインターリーバと、
前記タイムインターリービングされた信号とL1シグナリング情報を用いることによって、放送信号フレームを生成するように構成されたフレームビルダと、
を備え、
前記インジェクションレベルコントローラは、前記エンハンストレイヤ信号のパワーをスケーリングファクターに相応して低減し、前記パワーノーマライザは、前記マルチプレキシングされた信号のパワーをノーマライジングファクターに相応して低減し、
前記スケーリングファクターは前記エンハンストレイヤ信号に適用され、前記ノーマライジングファクターは前記コアレイヤ信号及び前記パワーリデューストエンハンストレイヤ信号にともに適用され、
前記L1シグナリング情報は、ガードインターバル情報を含み、
前記スケーリングファクターは、前記インジェクションレベルコントローラに相応するパワー減少が大きいほど減少し、前記ノーマライジングファクターは、前記インジェクションレベルコントローラに相応するパワー減少が大きいほど増加することを特徴とする信号マルチプレキシング装置。 - 前記インジェクションレベルコントローラは、所定の間隔サイズで変化するインジェクションレベルを用いることにより、前記エンハンストレイヤ信号の前記パワーを低減し、前記所定の間隔サイズは、0.5dBを含むことを特徴とする請求項1に記載の信号マルチプレキシング装置。
Applications Claiming Priority (7)
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KR10-2014-0082942 | 2014-07-03 | ||
KR20140082942 | 2014-07-03 | ||
KR20140086274 | 2014-07-09 | ||
KR10-2014-0086274 | 2014-07-09 | ||
KR1020150093467A KR102366988B1 (ko) | 2014-07-03 | 2015-06-30 | 레이어드 디비전 멀티플렉싱을 이용한 신호 멀티플렉싱 장치 및 신호 멀티플렉싱 방법 |
KR10-2015-0093467 | 2015-06-30 | ||
JP2020005779A JP7008091B2 (ja) | 2014-07-03 | 2020-01-17 | レイヤードディビジョンマルチプレキシングを利用した信号マルチプレキシング装置および信号マルチプレキシング方法 |
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JP2022037245A JP2022037245A (ja) | 2022-03-08 |
JP7319403B2 true JP7319403B2 (ja) | 2023-08-01 |
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JP2020005779A Active JP7008091B2 (ja) | 2014-07-03 | 2020-01-17 | レイヤードディビジョンマルチプレキシングを利用した信号マルチプレキシング装置および信号マルチプレキシング方法 |
JP2022001661A Active JP7319403B2 (ja) | 2014-07-03 | 2022-01-07 | レイヤードディビジョンマルチプレキシングを利用した信号マルチプレキシング装置および信号マルチプレキシング方法 |
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JP2020005779A Active JP7008091B2 (ja) | 2014-07-03 | 2020-01-17 | レイヤードディビジョンマルチプレキシングを利用した信号マルチプレキシング装置および信号マルチプレキシング方法 |
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EP (2) | EP4161064A1 (ja) |
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KR (3) | KR102366988B1 (ja) |
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