WO2008146431A1 - デジタル放送受信装置 - Google Patents

デジタル放送受信装置 Download PDF

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Publication number
WO2008146431A1
WO2008146431A1 PCT/JP2008/000439 JP2008000439W WO2008146431A1 WO 2008146431 A1 WO2008146431 A1 WO 2008146431A1 JP 2008000439 W JP2008000439 W JP 2008000439W WO 2008146431 A1 WO2008146431 A1 WO 2008146431A1
Authority
WO
WIPO (PCT)
Prior art keywords
peak
judgment
outputs
advance
digital broadcast
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2008/000439
Other languages
English (en)
French (fr)
Inventor
Satoshi Suzuki
Mitsuru Takeuchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2009516158A priority Critical patent/JP4637265B2/ja
Priority to EP08720325.3A priority patent/EP2151925B1/en
Priority to US12/530,895 priority patent/US8036324B2/en
Priority to CN2008800166635A priority patent/CN101682347B/zh
Publication of WO2008146431A1 publication Critical patent/WO2008146431A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • H03G3/3078—Circuits generating control signals for digitally modulated signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
    • H04H60/38—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space
    • H04H60/41—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast space, i.e. broadcast channels, broadcast stations or broadcast areas
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/52—Automatic gain control
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Circuits Of Receivers In General (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

　受信した信号の電力値が一定となるよう利得制御を行い、前記利得制御による自動ゲイン制御値が予め記憶された閾値より大きいか否かを判定して、該判定結果を出力する信号レベル検出回路と、前記受信した信号の帯域内における電力値のピークを検出して該検出したピークを出力するピーク検出部と、前記ピーク検出部から出力されたピークに、予め記憶された閾値より大きいピークが存在するか否かを判定して該判定結果を出力する異常ピーク判定部と、前記ピーク検出部から出力されたピークのうち、特定周波数帯域において、予め記憶された閾値を超えるものが存在するか否かを判定して該判定結果を出力する特定ピーク判定部と、所定帯域内の全電力の合計値が、予め記憶された閾値より大きいか否かを判定して該判定結果を出力する所定帯域内電力判定部とを備え、前記信号レベル検出回路、前記異常ピーク判定部、前記特定ピーク判定部、および前記所定帯域内電力判定部からそれぞれ出力される判定結果に基づき、受信中の信号がデジタル放送信号であるか否かを判定することを特徴とする。
PCT/JP2008/000439 2007-05-30 2008-03-04 デジタル放送受信装置 Ceased WO2008146431A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2009516158A JP4637265B2 (ja) 2007-05-30 2008-03-04 デジタル放送受信装置
EP08720325.3A EP2151925B1 (en) 2007-05-30 2008-03-04 Digital broadcast receiver
US12/530,895 US8036324B2 (en) 2007-05-30 2008-03-04 Digital broadcasting receiving apparatus
CN2008800166635A CN101682347B (zh) 2007-05-30 2008-03-04 数字广播接收装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-144008 2007-05-30
JP2007144008 2007-05-30

Publications (1)

Publication Number Publication Date
WO2008146431A1 true WO2008146431A1 (ja) 2008-12-04

Family

ID=40074709

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/000439 Ceased WO2008146431A1 (ja) 2007-05-30 2008-03-04 デジタル放送受信装置

Country Status (5)

Country Link
US (1) US8036324B2 (ja)
EP (1) EP2151925B1 (ja)
JP (1) JP4637265B2 (ja)
CN (1) CN101682347B (ja)
WO (1) WO2008146431A1 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8385362B2 (en) * 2009-01-09 2013-02-26 Samsung Electronics Co., Ltd. Method and system for contention-based medium access schemes for directional wireless transmission with asymmetric antenna system (AAS) in wireless communication systems
US9628122B1 (en) * 2016-07-25 2017-04-18 The Aerospace Corporation Circuits and methods for reducing interference that spectrally overlaps a desired signal based on dynamic gain control and/or equalization
JP2020072463A (ja) * 2018-11-02 2020-05-07 パナソニックＩｐマネジメント株式会社 復調装置、受信装置および復調方法

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0938199A2 (en) 1998-02-19 1999-08-25 Fujitsu Ten Limited Means for determining available reception frequencies in a receiver for the reception of digital broadcasts
JP2002359569A (ja) * 2001-05-30 2002-12-13 Kenwood Corp 放送受信装置
JP2003069907A (ja) 2001-08-24 2003-03-07 Matsushita Electric Ind Co Ltd 地上デジタル放送受信装置
JP2003234977A (ja) * 2002-02-12 2003-08-22 Pioneer Electronic Corp Ａｇｃ機能付き受信装置
JP2005005819A (ja) * 2003-06-10 2005-01-06 Alpine Electronics Inc ラジオ受信機
JP2006024994A (ja) 2004-07-06 2006-01-26 Matsushita Electric Ind Co Ltd アナログ／デジタル放送受信機
JP2006115204A (ja) * 2004-10-14 2006-04-27 Mitsubishi Electric Corp デジタル放送受信装置
EP1689139A2 (en) 2005-02-03 2006-08-09 Matsushita Electric Industrial Co., Ltd. Broadcast interference elimination in OFDM receiving systems
JP2006352674A (ja) * 2005-06-17 2006-12-28 Mitsubishi Electric Corp 受信装置
WO2007047376A2 (en) 2005-10-14 2007-04-26 Ati Technologies, Inc. Rapid channel signal identification

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3130752B2 (ja) * 1995-02-24 2001-01-31 株式会社東芝 Ｏｆｄｍ伝送受信方式及び送受信装置
JP3511798B2 (ja) * 1996-05-08 2004-03-29 三菱電機株式会社 ディジタル放送受信機
JP3689986B2 (ja) * 1996-06-28 2005-08-31 ソニー株式会社 デジタル衛星放送受信機及びそのアンテナレベル表示方法
JP3538056B2 (ja) 1999-02-17 2004-06-14 株式会社ケンウッド ディジタルテレビ放送受信用選局装置、受信装置及び選局方法
JP3654185B2 (ja) * 1999-03-10 2005-06-02 ソニー株式会社 ディジタル放送受信装置
JP2000278665A (ja) * 1999-03-26 2000-10-06 Sony Corp 受信装置および方法、並びに提供媒体
JP4123320B2 (ja) * 1999-09-17 2008-07-23 ソニー株式会社 受信機およびそのｉｃ
US7203158B2 (en) * 2000-12-06 2007-04-10 Matsushita Electric Industrial Co., Ltd. OFDM signal transmission system, portable terminal, and e-commerce system
JP2003037516A (ja) * 2001-07-23 2003-02-07 Funai Electric Co Ltd 自動利得制御機能を有する放送受信装置
JP2003234975A (ja) 2002-02-08 2003-08-22 Nippon Television Network Corp 放送信号識別装置とその方法
JP3715587B2 (ja) * 2002-04-30 2005-11-09 株式会社東芝 デジタル放送受信装置の制御方法
CN100372238C (zh) * 2004-03-31 2008-02-27 清华大学 时域同步正交频分复用接收机系统
JP4660127B2 (ja) 2004-06-23 2011-03-30 富士通テン株式会社 放送チャンネル検出装置および受信機
JP2006352488A (ja) 2005-06-15 2006-12-28 Nec Corp デジタル放送受信機、放送方式判定方法及び放送方式判定プログラム

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0938199A2 (en) 1998-02-19 1999-08-25 Fujitsu Ten Limited Means for determining available reception frequencies in a receiver for the reception of digital broadcasts
JP2002359569A (ja) * 2001-05-30 2002-12-13 Kenwood Corp 放送受信装置
JP2003069907A (ja) 2001-08-24 2003-03-07 Matsushita Electric Ind Co Ltd 地上デジタル放送受信装置
JP2003234977A (ja) * 2002-02-12 2003-08-22 Pioneer Electronic Corp Ａｇｃ機能付き受信装置
JP2005005819A (ja) * 2003-06-10 2005-01-06 Alpine Electronics Inc ラジオ受信機
JP2006024994A (ja) 2004-07-06 2006-01-26 Matsushita Electric Ind Co Ltd アナログ／デジタル放送受信機
JP2006115204A (ja) * 2004-10-14 2006-04-27 Mitsubishi Electric Corp デジタル放送受信装置
EP1689139A2 (en) 2005-02-03 2006-08-09 Matsushita Electric Industrial Co., Ltd. Broadcast interference elimination in OFDM receiving systems
JP2006352674A (ja) * 2005-06-17 2006-12-28 Mitsubishi Electric Corp 受信装置
WO2007047376A2 (en) 2005-10-14 2007-04-26 Ati Technologies, Inc. Rapid channel signal identification

Also Published As

Publication number Publication date
JP4637265B2 (ja) 2011-02-23
JPWO2008146431A1 (ja) 2010-08-19
US20100091917A1 (en) 2010-04-15
EP2151925A4 (en) 2013-07-10
EP2151925B1 (en) 2018-04-25
CN101682347A (zh) 2010-03-24
US8036324B2 (en) 2011-10-11
CN101682347B (zh) 2012-11-21
EP2151925A1 (en) 2010-02-10

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