JP4665623B2 - 受信装置および受信方法 - Google Patents
受信装置および受信方法 Download PDFInfo
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- JP4665623B2 JP4665623B2 JP2005182772A JP2005182772A JP4665623B2 JP 4665623 B2 JP4665623 B2 JP 4665623B2 JP 2005182772 A JP2005182772 A JP 2005182772A JP 2005182772 A JP2005182772 A JP 2005182772A JP 4665623 B2 JP4665623 B2 JP 4665623B2
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- 238000000034 method Methods 0.000 title claims description 35
- 230000003247 decreasing effect Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 description 49
- 230000008569 process Effects 0.000 description 19
- 230000005540 biological transmission Effects 0.000 description 10
- 230000007423 decrease Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 208000019901 Anxiety disease Diseases 0.000 description 2
- 230000036506 anxiety Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005562 fading Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
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Classifications
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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
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
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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
- H04N21/41—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
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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
- H04N21/438—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]
- H04N21/40—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
- H04N21/44—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
- H04N21/44016—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 splicing one content stream with another content stream, e.g. for substituting a video clip
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Software Systems (AREA)
- Circuits Of Receivers In General (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Description
まず、選局回路12、復調回路22、復号回路32に新しいチャンネルを受信する指示を出した後も、既に受信を行なっている受信系統はそのままの処理を続行する。すなわち、選局回路11、復調回路21、復号回路31は従来どおりの処理を行なって復号回路22は映像信号を出力し続けている。また選択回路4は復号回路31の映像信号を選択し続け、輝度変化回路5は輝度変化を行なわない。図2の210は、ユーザがチャンネル切換動作を行なう前の状態を示しており、輝度の低下無くチャンネル切換前の映像が出力され、表示回路6で表示が行なわれている。
21、22:復調回路
31、32:復号回路
4:映像信号選択回路
5:輝度変化回路
6:表示回路
7:選局指示回路
8:制御回路
81:チャンネル切換時間算出回路
82:チャンネル切換時間記憶回路
Claims (2)
- 映像信号を含む放送信号を受信する第1及び第2の受信部と、
前記第1及び第2の受信部により受信された放送信号のチャンネルを選局する第1及び第2の選局部と、
前記第1及び第2の選局部により選局された放送信号を復調する第1及び第2の復調部と、
前記第1及び第2の復調部により復調された放送信号を復号する第1及び第2の復号部と、
前記第1あるいは第2の復号部により復号された放送信号に含まれる映像信号を選択する選択部と、
前記選択部で選択された映像信号の輝度を変化させる輝度変化部と、
前記放送信号のチャンネル選局の指示を行う選局指示部と、
前記選局指示部においてチャンネルを切換える指示が与えられた場合、前記第2の選局部、前記第2の復調部および前記第2の復号部を用いて切換え先のチャンネルの映像信号を出力するまでは、前記第1の選局部、前記第1の復調部および前記第1の復号部を用いて切換えられる前のチャンネルの映像信号を出力させるように、前記選択部を制御するとともに、前記選局指示部においてチャンネルを切換える指示が与えられたタイミングで、前記切換えられる前のチャンネルの映像信号の輝度を所定の割合だけ低下させ、その後徐々に輝度を低下させるように、前記輝度変化部を制御する制御部とを備えることを特徴とする受信装置。 - 第1及び第2の受信系統を有する受信装置における受信方法であって、
前記2つの受信系統の各々で、映像信号を含む放送信号を受信し、受信された放送信号のチャンネルを選局し、選局された放送信号を復調し、復調された放送信号を復号し、
前記放送信号のチャンネル切換えの指示が与えられた場合、一方の受信系統で切換え先のチャンネルの映像信号を出力するまでは、他方の受信系統で切換えられる前のチャンネルの映像信号を出力し、
チャンネル切換えの指示が与えられたタイミングで、前記切換えられる前のチャンネルの映像信号の輝度を所定の割合だけ低下させ、その後徐々に輝度を低下させることを特徴とする受信方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005182772A JP4665623B2 (ja) | 2005-06-23 | 2005-06-23 | 受信装置および受信方法 |
US11/368,696 US7782406B2 (en) | 2005-06-23 | 2006-03-07 | Receiving apparatus and receiving method for channel switching in both digital and analog TV reception |
CNA2006100650043A CN1885924A (zh) | 2005-06-23 | 2006-03-15 | 信号接收装置以及接收方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005182772A JP4665623B2 (ja) | 2005-06-23 | 2005-06-23 | 受信装置および受信方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007006053A JP2007006053A (ja) | 2007-01-11 |
JP4665623B2 true JP4665623B2 (ja) | 2011-04-06 |
Family
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Application Number | Title | Priority Date | Filing Date |
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JP2005182772A Active JP4665623B2 (ja) | 2005-06-23 | 2005-06-23 | 受信装置および受信方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7782406B2 (ja) |
JP (1) | JP4665623B2 (ja) |
CN (1) | CN1885924A (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080137725A1 (en) * | 2006-12-12 | 2008-06-12 | Yu-Chieh Chou | Systems and methods for displaying local media signal and broadcast signal utilizing one decoder |
JP2008205575A (ja) * | 2007-02-16 | 2008-09-04 | Pioneer Electronic Corp | 放送システム、表示装置及び放送システムの送受信表示方法 |
CN100551001C (zh) * | 2008-01-03 | 2009-10-14 | Ut斯达康通讯有限公司 | Iptv机顶盒快速平滑切换频道的方法 |
CN101938672A (zh) * | 2010-09-14 | 2011-01-05 | 李典 | 收视率统计系统及其统计方法 |
JP6024084B2 (ja) * | 2011-09-14 | 2016-11-09 | ソニー株式会社 | プロジェクタ装置及びプロジェクタ装置の光源制御方法 |
CN106534960B (zh) * | 2016-10-21 | 2019-12-31 | 青岛海信电器股份有限公司 | 频道切换方法及装置 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001094892A (ja) * | 1999-09-21 | 2001-04-06 | Toshiba Corp | チャンネル切り替え装置 |
JP2004266704A (ja) * | 2003-03-04 | 2004-09-24 | Funai Electric Co Ltd | 放送受信装置 |
JP2004336518A (ja) * | 2003-05-09 | 2004-11-25 | Matsushita Electric Ind Co Ltd | デジタル放送受信装置 |
JP2005507616A (ja) * | 2001-10-30 | 2005-03-17 | トムソン ライセンシング ソシエテ アノニム | ビデオ信号を受信する装置およびその装置を制御する方法 |
JP2005094451A (ja) * | 2003-09-18 | 2005-04-07 | Toshiba Corp | デジタル放送受信機 |
JP2005203834A (ja) * | 2004-01-13 | 2005-07-28 | Mitsubishi Electric Corp | デジタル放送受信記録装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0638117A (ja) | 1992-07-20 | 1994-02-10 | Fujitsu General Ltd | テレビジョン受信機のチャンネル切換回路 |
JPH09135394A (ja) | 1995-11-07 | 1997-05-20 | Matsushita Electric Ind Co Ltd | デジタル放送用テレビジョン受信機 |
KR100309099B1 (ko) * | 1997-06-21 | 2001-12-15 | 윤종용 | 채널 선국방법 및 장치 |
US6766526B1 (en) * | 1998-12-03 | 2004-07-20 | United Video Properties, Inc. | Smart channel entry system |
JP4557374B2 (ja) * | 2000-06-15 | 2010-10-06 | キヤノン株式会社 | 画像表示装置及びその制御方法、並びに記憶媒体 |
EP1197341B9 (en) * | 2000-10-10 | 2006-07-05 | Fuji Photo Film Co., Ltd. | Transfer apparatus |
JP2003116073A (ja) | 2001-10-04 | 2003-04-18 | Mitsubishi Electric Corp | テレビジョン放送受信装置 |
US20040181813A1 (en) * | 2003-02-13 | 2004-09-16 | Takaaki Ota | Methods and systems for rapid channel change within a digital system |
US20040189879A1 (en) * | 2003-03-31 | 2004-09-30 | Sony Electronics Inc. | Method and apparatus for switching television channels |
KR100513050B1 (ko) * | 2003-06-02 | 2005-09-06 | 엘지전자 주식회사 | Tv 시스템의 다중 pop에서 슬롯 이동 방법 및 장치 |
JP4270130B2 (ja) * | 2005-01-11 | 2009-05-27 | カシオ計算機株式会社 | テレビ受信装置およびその制御プログラム |
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2005
- 2005-06-23 JP JP2005182772A patent/JP4665623B2/ja active Active
-
2006
- 2006-03-07 US US11/368,696 patent/US7782406B2/en active Active
- 2006-03-15 CN CNA2006100650043A patent/CN1885924A/zh active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2001094892A (ja) * | 1999-09-21 | 2001-04-06 | Toshiba Corp | チャンネル切り替え装置 |
JP2005507616A (ja) * | 2001-10-30 | 2005-03-17 | トムソン ライセンシング ソシエテ アノニム | ビデオ信号を受信する装置およびその装置を制御する方法 |
JP2004266704A (ja) * | 2003-03-04 | 2004-09-24 | Funai Electric Co Ltd | 放送受信装置 |
JP2004336518A (ja) * | 2003-05-09 | 2004-11-25 | Matsushita Electric Ind Co Ltd | デジタル放送受信装置 |
JP2005094451A (ja) * | 2003-09-18 | 2005-04-07 | Toshiba Corp | デジタル放送受信機 |
JP2005203834A (ja) * | 2004-01-13 | 2005-07-28 | Mitsubishi Electric Corp | デジタル放送受信記録装置 |
Also Published As
Publication number | Publication date |
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US7782406B2 (en) | 2010-08-24 |
JP2007006053A (ja) | 2007-01-11 |
CN1885924A (zh) | 2006-12-27 |
US20060291441A1 (en) | 2006-12-28 |
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