WO2012134049A2 - Système multi-pièces basé sur un réseau ethernet résidentiel, et boîtier décodeur et dispositif associés - Google Patents

Système multi-pièces basé sur un réseau ethernet résidentiel, et boîtier décodeur et dispositif associés Download PDF

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Publication number
WO2012134049A2
WO2012134049A2 PCT/KR2012/000819 KR2012000819W WO2012134049A2 WO 2012134049 A2 WO2012134049 A2 WO 2012134049A2 KR 2012000819 W KR2012000819 W KR 2012000819W WO 2012134049 A2 WO2012134049 A2 WO 2012134049A2
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WO
WIPO (PCT)
Prior art keywords
ethernet network
top box
room
indoor
broadcast stream
Prior art date
Application number
PCT/KR2012/000819
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English (en)
Korean (ko)
Other versions
WO2012134049A3 (fr
Inventor
김철민
김기남
권재현
Original Assignee
가온미디어 주식회사
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.)
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Application filed by 가온미디어 주식회사 filed Critical 가온미디어 주식회사
Publication of WO2012134049A2 publication Critical patent/WO2012134049A2/fr
Publication of WO2012134049A3 publication Critical patent/WO2012134049A3/fr

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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
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • 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
    • H04N21/4104—Peripherals receiving signals from specially adapted client devices
    • H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • 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
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/43615—Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals

Definitions

  • the present invention relates to a multi-room system technology for responding to N screens by allowing a user to independently view a broadcast stream or various multimedia streams received from a main set-top box in a plurality of rooms.
  • the present invention connects the main set-top box and each room using an Ethernet network already installed in the home, configures the Ethernet network, and then inputs a broadcast stream or various multimedia streams from the main set-top box into the indoor Ethernet network.
  • the installation allows the display device to be connected to the in-house Ethernet network to receive operating power via Power On Ethernet (POE) while simultaneously receiving broadcast or multimedia streams from the in-house Ethernet network.
  • POE Power On Ethernet
  • a technique is provided for receiving and allowing each user to watch a broadcast independently.
  • a digital broadcast receiver such as a set-top box that receives digital television broadcasts restores the broadcast program selected by the user to original A / V (Audio / Video) data using a decoder provided in the receiver. Transmission to the same display device allows a user to watch a broadcast program.
  • TVs can be connected to one set-top box, satellite TV and cable can be connected through each TV. It is expected to be able to watch broadcasting and digital terrestrial broadcasting independently.
  • N Screen generally refers to a service that enables common contents to be used by various terminal devices equipped with a common operating system. For example, you can buy movies, music, and games from the smartphone app store, enjoy them on your smartphone on the subway or bus, and then watch them on your TV or PC after you get home. If the N screen can be implemented through a set-top box, it is expected to be conveniently used in the home.
  • An object of the present invention is to provide a multi-room system technology for responding to N screens by allowing a user to independently view a broadcast stream or various multimedia streams received from a main set-top box in a plurality of rooms.
  • an object of the present invention is to connect the main set-top box and each room to the network through the in-house Ethernet network that is typically pre-installed in the assembly building so that the main set-top box and the individual room to watch the video independently
  • POE Power On Ethernet
  • the multi-room system based on the indoor Ethernet network is one or more display devices (210, 220, 230, 240) installed in the main set-top box 100 and one or more rooms (house) in the home
  • a main set-top box 100 configured to connect to a pre-installed Ethernet network in a home, receive a digital broadcast signal from an external transmission medium, extract a digital broadcast stream from the digital broadcast signal, and input the digital broadcast stream to the home Ethernet network; It is installed for each room in the house, and is provided with a power-on Ethernet (POE) module 211 to be connected to the indoor Ethernet network installed in the room to obtain and operate operating power therefrom, and to provide a digital broadcast stream from the connected indoor Ethernet network.
  • POE power-on Ethernet
  • at least one display device 210 for generating a broadcast image from a digital broadcast stream and providing the same to a user in response to a user's manipulation input.
  • the main set-top box 100 In the multi-room system based on the indoor Ethernet network according to the present invention, the main set-top box 100 generates a multimedia stream from the screen generated from the storage 101, the content server 102, and the application execution 103 to perform the indoor Ethernet network.
  • N screen can be configured by inputting to enable display through one or more display devices.
  • the main set-top box 100 measures the power consumption supplied through the POE for one or more display devices 210, 220, 230, and 240, and is operated by a user.
  • the power measurement unit 150 provides a power consumption breakdown for each room in response to the command.
  • the main set-top box 100 is a CAS module 110 for solving the reception restriction encryption inserted in the broadcast stream, and the decryption output from the CAS module 110 And a scrambler module 120 for inputting the encrypted broadcast stream to the indoor Ethernet network by rescrambled the stream, and the display device 210 holds a key corresponding to the scrambler module 120. It is preferably configured to include a descrambler module 212 receives the encrypted broadcast stream scrambled by the 120 from the premises Ethernet network to decrypt it.
  • the multi-room system based on the indoor Ethernet network is connected to the indoor Ethernet network and the main set-top box 100, receives a broadcast signal from the outside through the indoor Ethernet network, and provides the main set-top box 100 to the main. It may be configured to further include; Ethernet hub 400 for receiving a broadcast stream from the set-top box 100 to provide a home Ethernet network.
  • the set-top box device for a multi-room system based on the indoor Ethernet network is installed for each room in the home, and is provided with a power-on Ethernet (POE) module 211 is connected to the indoor Ethernet network installed in the room
  • POE power-on Ethernet
  • One or more display devices 210 and 220 which obtain and operate operating power therefrom and receive a digital broadcast stream from a connected indoor Ethernet network to generate a broadcast image from the digital broadcast stream and provide the user with a user's manipulation input.
  • 230, 240 connected to the indoor Ethernet network to configure a multi-room system, receiving a digital broadcast signal from an external transmission medium, extracting a digital broadcast stream from the digital broadcast signal and entering the indoor Ethernet network. do.
  • the set-top box apparatus for a multi-room system based on an indoor Ethernet network generates a multimedia stream from a screen generated from a storage 101, a content server 102, and an application execution 103, and inputs the multimedia stream to an indoor Ethernet network. It is desirable to configure the N screen by enabling display through one or more display devices.
  • Set-top box device for a multi-room system based on the indoor Ethernet network according to the present invention, CAS module 110 for solving the reception restriction encryption inserted into the broadcast stream; And a scrambler module 120 for inputting the encrypted broadcast stream to the in-house Ethernet network by rescrambling the decryption stream output from the CAS module 110 again.
  • the set-top box device for a multi-room system based on an indoor Ethernet network measures power consumption supplied through a POE for one or more display devices 210, 220, 230, and 240 and responds to a user's operation command. It is preferable to further include a power measuring unit 150 for providing a power consumption breakdown for each room.
  • the set-top box device for a multi-room system based on an indoor Ethernet network includes an Ethernet hub 400 that receives a broadcast signal from an external source and receives a broadcast stream from the outside through an indoor Ethernet network. It is preferable that it consists of.
  • a display device for a multi-room system based on an indoor Ethernet network receives a digital broadcast signal from an external transmission medium, extracts a digital broadcast stream from the digital broadcast signal, and inputs it to the indoor Ethernet network. It is connected to the box 100 and the pre-installed Ethernet network in the home to configure a multi-room system, which is installed for each room in the home, and equipped with a power-on Ethernet (POE) module 211 in the home Ethernet network installed in the room It is connected to obtain an operating power from the operation and receives a digital broadcast stream from the connected indoor Ethernet network generates a broadcast image from the digital broadcast stream in response to the user's operation input to provide to the user.
  • POE power-on Ethernet
  • the display device for the multi-room system based on the indoor Ethernet network according to the present invention is scrambled by the scrambler module 120 by holding a key corresponding to the scrambler module 120 of the main set-top box 100 to be the main set top.
  • the descrambler module 212 may receive an encrypted broadcast stream output from the box 100 from an indoor Ethernet network and decrypt the same.
  • the POE module 211 provided in the display device for the multi-room system based on the indoor Ethernet network according to the present invention preferably operates in a class 0 mode.
  • the installation of the multi-room system is very simple by utilizing the premises Ethernet network currently installed in advance in the assembly building as the base network of the multi-room system.
  • FIG. 1 is a block diagram showing the concept of a multi-room system based on the indoor Ethernet network according to the present invention.
  • Figure 2 is a block diagram showing the concept of a multi-channel system based on the indoor Ethernet network according to the present invention.
  • Figure 3 is a block diagram showing an Ethernet network connection configuration when connecting using an Ethernet hub device in a multi-room system based indoor Ethernet network according to the present invention.
  • FIG. 4 is a block diagram illustrating a configuration considering a reception restriction module (CAS) in a multi-room system based on an indoor Ethernet network according to the present invention.
  • CAS reception restriction module
  • Figure 5 is a block diagram showing various applications of the multi-channel system based on the indoor Ethernet network according to the present invention.
  • FIGS. 1 and 2 are diagrams illustrating the concept of a multi-room system based on an indoor Ethernet network according to the present invention.
  • the broadcast server 300 is to collectively represent a system for providing various broadcast related services.
  • the present invention can be arbitrarily selected from among them, and it is a general concept that does not exclude new types of broadcasting media. It must be understood.
  • the main set-top box 100 receives a digital broadcast signal from the broadcast server 100. Like a typical set-top box, the main set-top box 100 extracts a digital broadcast stream from a broadcast signal in response to a user's operation. In general, in the case of current digital broadcasting, a digital broadcasting stream is extracted from a digital broadcasting signal by using a tuning circuit and an MPEG TS (multi-transfer demultiplexer) (not shown). The detailed description is omitted.
  • MPEG TS multi-transfer demultiplexer
  • the main set-top box 100 is installed in the living room in the house.
  • the present invention utilizes a main set-top box 100 to display four rooms in a home, that is, display devices 210, 220, 230, and 240 installed in rooms # 1, # 2, # 3, and # 4 of FIG. 1, respectively.
  • the broadcast screen appears on the screen.
  • the main set-top box 100 is connected to the Ethernet port installed on the wall of the living room, thereby providing a digital broadcast stream extracted from the broadcast signal to the indoor Ethernet network.
  • display devices 210, 220, 230, and 240 are provided in each of the rooms (rooms # 1, # 2, # 3, # 4). These display devices 210, 220, 230, and 240 are directly connected to the premises Ethernet network, and thus receive a digital broadcast stream.
  • the users in each room use the remote controllers 215, 225, 235, and 245 to control the operation of the display devices 210, 220, 230, and 240, and as desired, the broadcast programs included in the digital broadcast stream. Choose to watch
  • the display device 210, 220, 230, 240 is preferably used to draw the operating power from the premises Ethernet network, for this purpose is provided with a power-on Ethernet (POE) module (211, 221, 231, 241).
  • Power over Ethernet (POE) refers to a technology in which power is supplied to various devices (VoIP phones, WLAN transmitters, security cameras, etc.) connected to an Ethernet network.
  • the operating modes of the POE are defined in classes 0 to 3, which can provide up to 12.95 watts of power in class 0.
  • Class 4 is available to provide more power, and POE UPS technology can be used as an adjunct if needed.
  • the specification of the display apparatuses 210, 220, 230, and 240 is the degree of power that can be drawn from the POE. Designed to Preferably set to POE class 0 to provide 12.95 watts of power to the display devices 210, 220, 230, 240, and the display devices 210, 220, 230, 240 are low power to operate at this power.
  • the present invention is not necessarily limited to class 0, and may be class 1 to 3 when the display devices 210, 220, 230, and 240 are implemented at low power.
  • the present invention shows a great advantage in the installation of the multi-room system. That is, according to the prior art, in order to install a multi-room system, there was an inconvenience of having to perform separate track construction for the house. However, according to the present invention, when the display devices 210, 220, 230, and 240 are installed in each of the rooms (rooms # 1, # 2, # 3, and # 4), the home Ethernet network that is already installed on the wall is provided. All the installation work is completed by simply performing the simple operation of connecting the display devices 210, 220, 230, and 240 to the Ethernet port using an Ethernet cable.
  • the related power is preferably supplied from the main set top box 100 connected to the indoor Ethernet network.
  • the main set-top box 100 may include a power measuring unit 150 to monitor power consumption supplied to each room, and provide power consumption details in response to a user's operation input. Through such a configuration, one function of the smart grid may be implemented.
  • FIG. 3 is a block diagram illustrating a network connection configuration when the Ethernet hub device 110 is connected in a multi-room system based on an indoor Ethernet network according to the present invention.
  • the main set-top box 100 is a set-top box for satellite broadcasting or cable broadcasting, the configuration of FIGS. 1 to 2 will be made.
  • the IPTV set is a broadcast provided to the main set-top box 100.
  • the signal is also likely to be delivered to the home Ethernet network. Therefore, in this case, by inserting the Ethernet hub 400 between the indoor Ethernet network and the main set-top box 100, the IPTV broadcast signal and the multi-room signal of the present invention can be distributed without a problem through a single indoor Ethernet network. .
  • the main set-top box 100 and the Ethernet hub 400 may be integrally formed. If the main set-top box 100 is an IPTV set-top box, this problem is always likely to occur, so if the multi-room system technology based on the home Ethernet network according to the present invention is applied to the IPTV set-top box, the Ethernet in the main set-top box 100 It is preferable to embed the hub 400.
  • FIG. 4 is a block diagram illustrating a configuration considering a reception restriction module (CAS) 110 in a multi-room system based on an indoor Ethernet network according to the present invention. Except for terrestrial signals, broadcast signals are mostly subject to reception restrictions.
  • the main set-top box 100 includes a reception access module (CAS) 110.
  • the CAS module 110 solves the reception restriction encryption inserted into the broadcast stream through a protocol specialized for a broadcaster, and through this, the main set-top box 100 can configure a screen using a broadcast signal.
  • the main set-top box 100 scrambles the clear text again through the scrambler module 120 and provides the premises Ethernet network.
  • the display devices 210, 220, 230, and 240 include descrambler modules 212, 222, 232, and 242.
  • the descrambler modules 212, 222, 232, and 242 hold a key in correspondence with the scrambler module 120, thereby decrypting (ie, decrypting) the bitstream scrambled by the scrambler module 120 again. Descrambling).
  • Encryption key management between the scrambler module 120 and the descrambler modules 212, 222, 232, and 242 is preferably performed by a key management algorithm according to the international standard.
  • the main set-top box 100 receives a broadcast signal and provides a digital broadcast stream extracted therefrom to the display devices 210, 220, 230, and 240 installed in each room.
  • the content handled by the main set-top box 100 is not limited to the broadcast signal, and includes a wider range.
  • the main set-top box 100 may generate a multimedia stream by playing a multimedia file (for example, a movie file) stored in the internal or external storage 101, or separately communicating with an external content server 102. It is also possible to generate a multimedia stream.
  • a screen for executing the application 103 may be encoded by itself to generate a multimedia stream.
  • the application 103 may be a playback application of YouTube, or may be an application such as a PowerPoint for presentation.
  • the generation method of the multimedia stream transmitted from the main set-top box 100 should be interpreted more flexibly.
  • the main set-top box 100 plays a video file stored in the internal storage 101 of the smartphone or executes the application 103 of the smartphone. You can also take a picture and encode the multimedia stream.
  • the N screen using the multi-room system technology of the present invention. That is, it is possible to watch the same content through a number of terminal devices. And, when the user plays the video from the outside from the smartphone, and enters the home, the main set-top box 100 using the multi-room system of the present invention as well as all rooms (rooms # 1, # 2, # 3, # 4) ) Can be connected and watched through the display devices 210, 220, 230, and 240.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

L'invention concerne une technologie de système multi-pièces susceptible d'obtenir un écran N par l'affichage indépendant de flux de diffusion ou de divers flux multimédia reçus d'un boîtier décodeur principal dans une pluralité de pièces. En particulier, l'invention concerne une technologie selon laquelle un boîtier décodeur principal est connecté à chaque pièce par l'intermédiaire d'un réseau Ethernet, qui est généralement installé et fourni dans un immeuble par avance, pour permettre ainsi de visualiser indépendamment des images au niveau du boîtier décodeur principal et dans des pièces particulières, et faciliter l'installation d'un dispositif d'affichage dans chaque pièce à l'aide d'un POE. Selon l'invention, le réseau Ethernet, qui est généralement installé et fourni dans un immeuble par avance, est utilisé en tant que réseau de base d'un système multi-pièces, et également un service multi-pièces est disponible grâce à la simple connexion d'un dispositif d'affichage à un port Ethernet dans une pièce particulière, permettant ainsi au système multi-pièces d'être facilement installé.
PCT/KR2012/000819 2011-03-31 2012-02-02 Système multi-pièces basé sur un réseau ethernet résidentiel, et boîtier décodeur et dispositif associés WO2012134049A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020110029787A KR101220171B1 (ko) 2011-03-31 2011-03-31 댁내 이더넷 네트워크 기반의 멀티룸 시스템, 및 이를 위한 셋톱박스 장치
KR10-2011-0029787 2011-03-31

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WO2012134049A2 true WO2012134049A2 (fr) 2012-10-04
WO2012134049A3 WO2012134049A3 (fr) 2012-11-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106792184A (zh) * 2016-11-16 2017-05-31 青岛海信宽带多媒体技术有限公司 一种机顶盒以及机顶盒供电调整方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160117369A (ko) 2015-03-31 2016-10-10 주식회사 다빈기술 데이터 암호화 알고리즘을 갖는 파워 오버 이더넷 장치
KR102294259B1 (ko) * 2020-11-17 2021-08-25 임종준 Lan 영역에서 하나의 랜선을 객실로 인입시켜 객실 내 iptv와 노하드 컴퓨터를 결선시키는 네트워크 결선구조

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KR20070027135A (ko) * 2005-08-29 2007-03-09 삼성전자주식회사 디지털 방송 수신기의 다중 암호 해독 시스템 및 방법
KR20070059817A (ko) * 2005-12-07 2007-06-12 한국전자통신연구원 서비스 융합 및 에너지 절약이 가능한 홈 서버 및 그 제어방법
US20090323711A1 (en) * 2004-12-06 2009-12-31 Terence Boarer Service system for a building

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Publication number Priority date Publication date Assignee Title
US20090323711A1 (en) * 2004-12-06 2009-12-31 Terence Boarer Service system for a building
KR20070027135A (ko) * 2005-08-29 2007-03-09 삼성전자주식회사 디지털 방송 수신기의 다중 암호 해독 시스템 및 방법
KR20070059817A (ko) * 2005-12-07 2007-06-12 한국전자통신연구원 서비스 융합 및 에너지 절약이 가능한 홈 서버 및 그 제어방법

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106792184A (zh) * 2016-11-16 2017-05-31 青岛海信宽带多媒体技术有限公司 一种机顶盒以及机顶盒供电调整方法

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WO2012134049A3 (fr) 2012-11-29
KR101220171B1 (ko) 2013-01-21

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