WO2010041674A1 - 放送受信装置 - Google Patents
放送受信装置 Download PDFInfo
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- WO2010041674A1 WO2010041674A1 PCT/JP2009/067462 JP2009067462W WO2010041674A1 WO 2010041674 A1 WO2010041674 A1 WO 2010041674A1 JP 2009067462 W JP2009067462 W JP 2009067462W WO 2010041674 A1 WO2010041674 A1 WO 2010041674A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
- H04N7/17309—Transmission or handling of upstream communications
- H04N7/17318—Direct or substantially direct transmission and handling of requests
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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
- H04N21/4432—Powering on the client, e.g. bootstrap loading using setup parameters being stored locally or received from the server
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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
- H04N21/4436—Power management, e.g. shutting down unused components of the receiver
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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]
- H04N21/60—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
- H04N21/6125—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via Internet
Definitions
- the present invention relates to a broadcast receiving apparatus, and more particularly to a broadcast receiving apparatus capable of receiving an IP broadcast.
- IP broadcasting is a system that distributes video and audio mainly through a dedicated IP network using broadband.
- IP broadcasting multi-channel broadcasting services similar to terrestrial broadcasting and satellite broadcasting, video on demand services, and the like are provided.
- the broadcast receiving apparatus acquires a CDN configuration information file of a connected CDN (Contents Delivery Network) at the first activation, and acquires a PF (platform) configuration information file described in the CDN configuration information file. It is necessary to connect to the multicast address described in the PF configuration information file and perform channel search by acquiring all channel information in the PF from the SI (Service Information) dedicated stream.
- CDN Contents Delivery Network
- PF platform configuration information file described in the CDN configuration information file. It is necessary to connect to the multicast address described in the PF configuration information file and perform channel search by acquiring all channel information in the PF from the SI (Service Information) dedicated stream.
- SI Service Information
- Patent Document 1 when the encryption key used for the encryption process when using the previous service is an encryption key older than the current encryption key, encryption is performed using both the current encryption key and the old encryption key.
- Process to generate two service usage identification information send the generated two service usage identification information to the service providing server, and instruct to update the old service usage identification information to the new service usage identification information.
- the channel that can be received changes, so it is necessary to newly perform a channel search.
- the channel search is not performed even though the CDN to be connected has changed, the channel information acquired by the CDN configuration information file of the CDN that was previously connected is referred to, thereby causing the malfunction of the broadcast receiving apparatus.
- the channel information acquired by the CDN configuration information file of the CDN that was previously connected is referred to, thereby causing the malfunction of the broadcast receiving apparatus.
- Patent Document 1 it is necessary to pair updated information with old information, which causes a problem of increasing storage capacity and taking time.
- the present invention has been made in view of such a situation, and provides a broadcast receiving apparatus that can always acquire correct channel information as the connected network changes.
- the broadcast receiving apparatus of the present invention acquires a network configuration information file every time it is started, and information for identifying a network described therein is different from information for identifying a network described in a previously acquired network configuration information file. If so, it is determined that the connected network has changed, and channel information is initialized.
- channel information exists in the new network If channel information exists in the new network, a new channel search is performed. By doing so, it is possible to save the user from having to search for a new channel when the network to be connected changes, and to avoid problems caused by referring to old channel information.
- the broadcast receiving apparatus of the present invention is a broadcast receiving apparatus capable of receiving an IP broadcast, and includes storage means for storing a network configuration information file and channel information, and control means for controlling each part of the broadcast receiving apparatus,
- the control means connects to the network at startup, acquires a network configuration information file, and information for identifying the network described in the acquired network configuration information file is described in the network configuration information file stored in the storage means It is determined whether the information is different from the information for identifying the network, and if it is different, the channel information is initialized.
- channel information exists based on information described in the network configuration information file, channel information is acquired, and the network configuration information file stored in the storage means and the network configuration information file from which channel information is newly acquired In addition, the channel information may be rewritten.
- the information for identifying the network may be a network name.
- the control unit may acquire a platform configuration information file based on information described in the network configuration information file, and may acquire channel information based on information described in the platform configuration information file.
- the control means acquires a plurality of platform configuration information files based on information described in the network configuration information file, and acquires channel information based on information described in each of the plurality of platform configuration information files. May be.
- a method of updating channel information in a broadcast receiving apparatus capable of receiving IP broadcast includes a step of connecting to a network at startup, a step of acquiring a network configuration information file, and a newly acquired network configuration information file Comparing the network identification information with the information identifying the network described in the previously stored stored network configuration information file, and if the two network names are different, the channel information is initialized
- the present invention may be a program for causing a computer to execute the above method, or a computer-readable recording medium on which the program is recorded.
- the program may be acquired via a transmission medium such as the Internet.
- correct channel information can always be acquired as the connected network changes.
- FIG. 1 It is a block diagram which shows an example of a structure of the broadcast receiver of this invention. It is a figure which shows an example of a CDN structure information (XML) file. It is a figure which shows an example of PF structure information file. It is a figure explaining the change of CDM which a broadcast receiving apparatus connects. It is a flowchart explaining the procedure of the channel search at the time of starting in the broadcast receiving apparatus of this invention.
- XML CDN structure information
- FIG. 1 is a block diagram showing an example of the configuration of the broadcast receiving apparatus of the present invention.
- the digital broadcast receiving apparatus A shown in FIG. 1 decodes the output from the front end 1, the demultiplexer 3, and the demultiplexer 3 that perform processing such as receiving and selecting a digital broadcast signal received from the antenna.
- a video / audio decoder 5 a screen synthesis unit 17 that generates a signal to be displayed by synthesizing the decoded video signal and program guide data described later, and a display unit 21 based on the signal synthesized by the screen synthesis unit 17
- an audio output unit 7 for outputting audio.
- a program information decoding unit 11 that decodes the program information output from the demultiplexer 3 and an electronic program guide generation unit 15 that generates an electronic program guide based on the program information decoded by the program information decoding unit 11.
- an interface unit 28 that forms an interface with other external devices, a remote control light receiving unit 23 that receives a remote control signal from a remote control device that is a control device, and a control unit (CPU) 25 that controls the whole.
- a memory unit (RAM / ROM) 27 that is executed in the control unit 25 to record various application processes, develops the program, and provides the CPU to the CPU, and a CDN configuration information file and channel to be described later And a storage unit for storing information.
- the interface unit 28 can receive distribution of digital content from the content server B via a CDN described later.
- the control unit 25 also performs control related to channel selection when IPTV is selected.
- the broadcast receiving apparatus of the present invention receives digital content distribution from a content server via a CDN (Contents Delivery Network) which is a network designed for the purpose of digital content distribution.
- the CDN used for each IP broadcast CDN operator contracted by the user of the broadcast receiving apparatus is determined.
- a plurality of CDNs may be used for each region such as East Japan and West Japan.
- the broadcast receiving apparatus acquires a configuration information file of the connected CDN in order to obtain information on the provided service.
- the CDN configuration information file is usually described in XML. Regardless of which CDN is connected, the URL for acquiring the CDN configuration information file is the same (http://cdn.iptvf.jp/cdn.comp). It is operated so that the IP address returned by the DNS (Domain Name System) to which the broadcast receiving device is connected changes for each CDN.
- the contents of the CDN configuration information file are different for each CDN.
- FIG. 2 is a diagram showing an example of the CDN configuration information file.
- the CDN to which the broadcast receiver is currently connected can be identified by the character string sandwiched between the ⁇ cdn_name> tag and the ⁇ / cdn_name> tag (in this example, “Network-A”).
- a character string sandwiched between ⁇ pf_url> and ⁇ / pf_url> tags is a PF (described later) Platform) URL for obtaining the configuration information file.
- FIG. 3 is a diagram showing an example of the PF configuration information file. Similar to the CDN configuration information file, the PF configuration information file is usually described in XML. In the PF configuration information file, SI (Service Information) dedicated stream information is described in a portion sandwiched between ⁇ si_stream> tags and ⁇ / si_stream> tags. In this SI dedicated stream information, the character string (“ff38 :: 100” in this example) sandwiched between the ⁇ multicast_address> tag and the ⁇ / multicast_address> tag is a multicast address. At the time of channel search, the broadcast receiving apparatus is connected to this multicast address, can acquire all channel information in the PF from the SI dedicated stream, and can view the IP broadcast.
- SI Service Information
- the URL of the portal is described in the portion sandwiched between the ⁇ portal_url> tag and the ⁇ / portal_url> tag.
- a VOD (Video On Demand) service can be received at a destination connected from this URL.
- CDN can receive IP broadcast service and / or VOD service depending on the service form of the CDN provider.
- FIG. 4 is a diagram for explaining the change of the CDN connected to the broadcast receiving apparatus.
- a CDN provider A which is a CDN provider that provides IP broadcasting in Tokyo.
- CDN operator A provides services by different CDNs in each region.
- a broadcast receiving device of a user in Tokyo is connected to a CDN called Network-A1.
- CDN operator A provides services in Osaka using a CDN, Network-A2, which is different from Network-A1, which is a CDN in Tokyo. Therefore, the broadcast receiving device of the user who has moved to Osaka is connected to Network-A2.
- the service provided by CDN provider A is the same 100 channel IP broadcast in both Network-A1 and Network-A2, but the IP address of each channel changes even if the content of the broadcast is the same. Therefore, in such a case, it is necessary to perform a new channel search and acquire information on channels that can be viewed on the Network-A2.
- the CDN operator A is transferred to the CDN operator B, which is another CDN operator.
- the CDN provided by the CDN operator B is Network-B.
- the CDN provider A and the CDN provider B are all different in IP broadcast configuration.
- the CDN operator B does not provide the IP broadcast service, and there is only the VOD service. Therefore, in such a case, when IP broadcasting is being provided, it is necessary to perform a new channel search and acquire information on channels that can be viewed on Network-B provided by CDN carrier B.
- FIG. 5 is a flowchart for explaining a channel search procedure at the time of activation in the broadcast receiving apparatus of the present invention.
- step S101 the broadcast receiving apparatus is turned on and activated.
- step S102 the broadcast receiving apparatus connects to the CDN, accesses the URL: http://cdn.iptvf.jp/cdn.comp, and acquires the CDN configuration information file.
- step S103 the CDN name (character string sandwiched between the ⁇ cdn_name> tag and the ⁇ / cdn_name> tag) described in the newly acquired CDN configuration information file has been previously acquired and stored in the storage unit. It is determined whether or not it is the same as the CDN name described in the CDN configuration information file. If it is the same, it is determined that there is no change in the connected CDN, the operation is terminated, and if it is different, the connected CDN is changed. The process proceeds to step S104.
- step S104 the broadcast receiving apparatus determines that the CDN has changed and connected to a new network, and erases all previously acquired channel information stored in the storage unit.
- step S105 the broadcast receiving apparatus performs PF using the URL (character string sandwiched between ⁇ pf_url> tag and ⁇ / pf_url> tag) of the PF configuration information file described in the newly acquired CDN configuration information file. Get the configuration information file.
- step S106 the CDN configuration information file of the previously connected CDN and the PF configuration information file stored in the storage unit are deleted, and the CDN configuration information file newly acquired in step S102 and in step S105 The newly acquired PF configuration information file is updated.
- step S107 the presence / absence of the multicast address (character string sandwiched between the ⁇ multicast_address> tag and the ⁇ / multicast_address> tag) is checked in the PF information file, and if there is no tag itself or there is no multicast address It is determined that there is no channel information, and the operation is terminated. If there is channel information, the process proceeds to step S108.
- step S108 connection is made to the multicast address, and all channel information in the PF is acquired from the SI dedicated stream.
- the SI dedicated stream is received by RTP (Real-time Transport Protocol) (UDP (User Datagram Protocol)) protocol, and NIT (Network Information Table) data for all stations is acquired and used as channel information.
- RTP Real-time Transport Protocol
- UDP User Datagram Protocol
- NIT Network Information Table
- a plurality of PF configuration information files are acquired in step S105 and updated in step S106, and then the processes in steps S107 to S109 are performed for each PF.
- the CDN configuration information file is acquired at each activation, and the CDN name described in the newly acquired CDN configuration information file is acquired and stored previously. Compared with the CDN name described in the CDN configuration information file, if these are different, it is determined that the connected CDN has changed, all channel information is deleted, and it is described in the newly acquired CDN configuration information file.
- the PF configuration information file is acquired based on the stored information, connected to the multicast address described in the PF configuration information file, the channel information is acquired, and the CDN configuration information file and channel stored in the storage unit Update information to new ones.
- the channel information of the channel provided in can be automatically acquired.
- the channel information obtained based on the CDN configuration information file of the CDN different from the currently connected CDN is referred to because the new channel search is not performed even though the connected CDN has changed. It is possible to prevent problems such as malfunction of the broadcast receiving apparatus caused by the error.
- the present invention can be used for a broadcast receiving apparatus.
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- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
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Abstract
Description
1 フロントエンド
3 デマルチプレクサ
5 映像・音声デコード部
7 音声出力部
11 番組情報デコード部
17 画面合成部
21 表示部
25 制御部
28 インターフェイス部
29 記憶部
NT インターネット
B コンテンツサーバ
Claims (8)
- IP放送を受信可能な放送受信装置であって、
ネットワーク構成情報ファイルおよびチャンネル情報を記憶する記憶手段と、
前記放送受信装置の各部を制御する制御手段とを備え、
前記制御手段は、起動時にネットワークに接続し、ネットワーク構成情報ファイルを取得し、取得したネットワーク構成情報ファイルに記載されるネットワークを識別する情報が前記記憶手段に記憶されたネットワーク構成情報ファイルに記載されるネットワークを識別する情報と異なっているかどうかを判定し、異なっている場合、チャンネル情報を初期化することを特徴とする放送受信装置。 - 前記ネットワーク構成情報ファイルに記載される情報に基づいてチャンネル情報が存在する場合にはチャンネル情報を取得し、前記記憶手段に記憶されたネットワーク構成情報ファイルおよびチャンネル情報を新たに取得したネットワーク構成情報ファイルおよびチャンネル情報に書き換えることを特徴とする請求項1に記載の放送受信装置。
- 前記ネットワークを識別する情報はネットワーク名であることを特徴とする請求項1又は2に記載の放送受信装置。
- 前記制御手段は、前記ネットワーク構成情報ファイルに記載された情報に基づいてプラットフォーム構成情報ファイルを取得し、前記プラットフォーム構成情報ファイルに記載された情報に基づいてチャンネル情報を取得することを特徴とする請求項2又は3に記載の方送受信装置。
- 前記制御手段は、前記ネットワーク構成情報ファイルに記載された情報に基づいて複数のプラットフォーム構成情報ファイルを取得し、前記複数のプラットフォーム構成情報ファイルの各々に記載された情報に基づいてチャンネル情報を取得することを特徴とする請求項2又は3に記載の方送受信装置。
- IP放送を受信可能な放送受信装置においてチャンネル情報を更新する方法であって、
起動時にネットワークに接続するステップと、
ネットワーク構成情報ファイルを取得するステップと、
新たに取得したネットワーク構成情報ファイルに記載されるネットワークを識別する情報と、以前に取得した記憶されているネットワーク構成情報ファイルに記載されるネットワークを識別する情報とを比較するステップと、
前記2つのネットワーク名が異なる場合、チャンネル情報を初期化するステップと、
新たに取得したネットワーク構成情報ファイルに記載される情報に基づいてチャンネル情報が存在するかどうか識別するステップと、チャンネル情報が存在する場合にチャンネル情報を取得するステップと、
記憶されているネットワーク構成情報ファイルおよびチャンネル情報を新たに取得したネットワーク構成情報ファイルおよびチャンネル情報に書き換えるステップとを含むことを特徴とする方法。 - 請求項6に記載の方法をコンピュータに実行させるためのプログラム。
- 請求項7に記載のプログラムを記録したコンピュータ読み取り可能な記録媒体。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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MX2011003606A MX2011003606A (es) | 2008-10-10 | 2009-10-07 | Aparato receptor de transmision. |
JP2010532935A JP5117574B2 (ja) | 2008-10-10 | 2009-10-07 | 放送受信装置 |
US13/123,248 US9009276B2 (en) | 2008-10-10 | 2009-10-07 | Broadcast receiver apparatus |
EP09819208.1A EP2346247B1 (en) | 2008-10-10 | 2009-10-07 | Broadcast receiver apparatus |
CN200980140566.1A CN102177708B (zh) | 2008-10-10 | 2009-10-07 | 广播接收装置 |
BRPI0920366A BRPI0920366A2 (pt) | 2008-10-10 | 2009-10-07 | aparelho receptor de difusão |
Applications Claiming Priority (2)
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JP2008263673 | 2008-10-10 | ||
JP2008-263673 | 2008-10-10 |
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WO2010041674A1 true WO2010041674A1 (ja) | 2010-04-15 |
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PCT/JP2009/067462 WO2010041674A1 (ja) | 2008-10-10 | 2009-10-07 | 放送受信装置 |
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US (1) | US9009276B2 (ja) |
EP (1) | EP2346247B1 (ja) |
JP (1) | JP5117574B2 (ja) |
CN (1) | CN102177708B (ja) |
BR (1) | BRPI0920366A2 (ja) |
MX (1) | MX2011003606A (ja) |
RU (1) | RU2467498C1 (ja) |
WO (1) | WO2010041674A1 (ja) |
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- 2009-10-07 WO PCT/JP2009/067462 patent/WO2010041674A1/ja active Application Filing
- 2009-10-07 BR BRPI0920366A patent/BRPI0920366A2/pt not_active Application Discontinuation
- 2009-10-07 EP EP09819208.1A patent/EP2346247B1/en not_active Not-in-force
- 2009-10-07 RU RU2011118346/07A patent/RU2467498C1/ru active
- 2009-10-07 CN CN200980140566.1A patent/CN102177708B/zh not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
---|---|
CN102177708B (zh) | 2015-09-02 |
CN102177708A (zh) | 2011-09-07 |
JPWO2010041674A1 (ja) | 2012-03-08 |
RU2467498C1 (ru) | 2012-11-20 |
EP2346247A4 (en) | 2012-02-22 |
BRPI0920366A2 (pt) | 2016-03-15 |
US9009276B2 (en) | 2015-04-14 |
EP2346247B1 (en) | 2019-09-04 |
EP2346247A1 (en) | 2011-07-20 |
MX2011003606A (es) | 2011-05-10 |
US20110202642A1 (en) | 2011-08-18 |
JP5117574B2 (ja) | 2013-01-16 |
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