EP2586194A1 - Configuration des paramètres d'installation dans un récepteur de télévision - Google Patents

Configuration des paramètres d'installation dans un récepteur de télévision

Info

Publication number
EP2586194A1
EP2586194A1 EP11729746.5A EP11729746A EP2586194A1 EP 2586194 A1 EP2586194 A1 EP 2586194A1 EP 11729746 A EP11729746 A EP 11729746A EP 2586194 A1 EP2586194 A1 EP 2586194A1
Authority
EP
European Patent Office
Prior art keywords
television receiver
dvb
available
channel
transmission
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.)
Withdrawn
Application number
EP11729746.5A
Other languages
German (de)
English (en)
Inventor
Poornachandra Balachandra Kallare
Pavan Sudheendra
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.)
TP Vision Holding BV
Original Assignee
TP Vision Holding BV
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 TP Vision Holding BV filed Critical TP Vision Holding BV
Priority to EP11729746.5A priority Critical patent/EP2586194A1/fr
Publication of EP2586194A1 publication Critical patent/EP2586194A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H04N5/46—Receiver circuitry for the reception of television signals according to analogue transmission standards for receiving on more than one standard at will
    • 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
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/42202—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS] environmental sensors, e.g. for detecting temperature, luminosity, pressure, earthquakes
    • 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
    • H04N21/4345—Extraction or processing of SI, e.g. extracting service information from an MPEG stream
    • 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 MPEG packets from an IP network
    • H04N21/4383—Accessing a communication channel
    • 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
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/4508—Management of client data or end-user data
    • H04N21/4524—Management of client data or end-user data involving the geographical location of the client
    • 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
    • H04N5/50—Tuning indicators; Automatic tuning control

Definitions

  • the present invention generally relates to the field of television receiver systems and more specifically to the field of performing channel installation in a television receiver system.
  • Patent document US7009659B2 discloses a system and a method for automatically establishing at least one television setting based on at least one of a geographic location of a television, a location of a television with respect to a dwelling and a time.
  • the disclosed method can establish at least one of an audio setting and a video setting such as menu, menu color, tint, brightness, contrast, audio volume, audio dynamic range, audio treble and audio bass.
  • the viewer of the television needs to manually input the information representative of at least one of a geographic location of a television.
  • the object of the present invention is realized by providing a method for performing channel installation in a television receiver.
  • the method comprises:
  • a television receiver generally uses number of parameters for performing the channel installation. These installation parameters could be
  • LNB Low Noise Block
  • television receivers depend on the user to select the installation parameters such as network frequency, network ID, symbol rate, name of the country to perform the channel installation. An incorrect selection of any of these installation
  • the disclosed method could prevent such problems by automatically determining the installation parameters to be used for the channel installation based on the determined geographic location. This could enhance the user experience and the user satisfaction. This could also improve the Net Promoter Score (NPS).
  • NPS Net Promoter Score
  • the user need not give any input (e.g. name of the country) to the television receiver to perform the channel installation. Based on the geographic location of the television receiver, installation parameters are implicitly calculated within the television receiver and the channel installation takes place without any user intervention. Furthermore, the user need not give any input such as telephone area code or zip code to obtain the geographic location of the television receiver to perform the channel installation.
  • any input e.g. name of the country
  • the disclosed method does not need additional hardware (e.g. GPS, modem) in case of network enabled television receivers.
  • additional hardware e.g. GPS, modem
  • additional hardware to obtain the geographic location could be integrated within the television.
  • There is no protocol to be supported within the television receiver in order to obtain the channel map e.g. protocol that defines the communication format between the television receiver and the broadcaster.
  • the disclosed method is not limited to available Digital Video Broadcasting (DVB) transmission standards (e.g. ATSC, ISDB-T/C, DMB-T/H) but also applicable to any standard suitable for transmission of digital television signals.
  • DVD Digital Video Broadcasting
  • the determined channel installation parameters could be homing frequency, network ID and symbol rate.
  • the determined homing frequency and the symbol rate could be used to tune to the cable service providers frequency and obtain the transmitted Service Description Table (SDT) and the Network Information Table (NIT).
  • SDT Service Description Table
  • NIT Network Information Table
  • LDN Logical Channel Number
  • NIT Network Information Table
  • the determined channel installation parameters could be the frequency band and the associated bandwidth of frequencies and the modulation type.
  • the determined frequency band could be scanned to obtain the transmission frequencies.
  • the Network Information Table (NIT) and the Service Description Table (SDT) could be obtained for each of the obtained transmission frequencies.
  • the services listed in the Service Description Table (SDT) and its corresponding Logical Channel Number (LCN) listed in the Network Information Table (NIT) could be extracted.
  • the extracted services along with the channel installation parameters could be stored as a channel map.
  • the determined channel installation parameters could be Low Noise Block, polarization and frequency band as mentioned in the previous paragraph.
  • the determined frequency band could be scanned in order to obtain the transmission frequencies.
  • the Network Information Table (NIT) and the Service Description Table (SDT) could be extracted for each of the obtained transmission frequencies.
  • the services listed in the Service Description Table (SDT) and its corresponding Logical Channel Number (LCN) listed in the Network Information Table (NIT) could be extracted.
  • the extracted services along with the determined channel installation parameters could be stored as a channel map.
  • the determined channel installation parameter could be the frequency band on which core MPEG transmission takes place.
  • the determined frequency band could be scanned to obtain the transmission frequencies.
  • the Program Association Table (PAT) and the Program Map Tables (PMT) associated with each of the Program Association Table (PAT) could be extracted for each of the obtained transmission frequencies.
  • the services listed in the Program Map Table (PMT) along with the determined channel installation parameter could be stored as a channel map.
  • channel map for each of the available transmission medium could be formed if more than one transmission medium is available (e.g. If DVB - C and DVB - S transmission medium is available, then individual channel map for DVB-C and DVB-S could be formed).
  • the channel maps so formed could be stored in the television.
  • the method comprises using the Internet for determining the geographic location of the television receiver.
  • This embodiment has the advantage that the user need not give any input (e.g. telephone area code) to the television receiver to obtain the geographic location of the television receiver.
  • the television receiver automatically could detect the correct geographic location. This could reduce the problems caused due to incorrect choices (i.e. wrong choice of geographic location) made by the user.
  • the user need not explicitly choose the country/region and hence this could improve the user experience.
  • the geographic location of the television receiver comprises at least one of
  • the geographic location of the television receiver lies on the border of two or more countries, there could be a possibility of receiving signals from multiple countries. In such cases, the geographic location determined could be used by the television receiver to choose the best channel installation parameters to receive the best of the broadcast transmission. There could be scenarios wherein two cities have the same name. Such scenarios could be resolved using the latitude and longitude information associated with the name of the city.
  • the method comprises
  • NIT Network Information Table
  • the network ID that is pre-dominantly used could be pre-defined in the television receiver or could be made available via a software update.
  • the method comprises
  • the method comprises
  • NIT Network Information Tables
  • NIT Network Information Table
  • the method of performing the channel installation on the DVB-C medium further comprises
  • This embodiment could be useful to choose the parameters automatically from the subscribed cable operator in case multiple cable operators are offering services in the region.
  • the method comprises
  • a database comprising i) a plurality of geographic locations and associated location information along with a list of cable operators providing service at each geographic location ii) commonly used transmission medium iii) a plurality of homing frequencies iv) a plurality of Network IDs v) symbol rate associated with homing frequency vi) frequency band and bandwidth associated with a country and using the parameters stored in the database and performing the channel installation. Further, based on the transmission medium, the minimum number of parameters could be determined. As an exemplary illustration for DVB-C it could be network ID, symbol rate, homing frequency; for DVB-T it could be frequency band and for DVB-S it could be network frequency, frequency band per polarization positions of the satellite.
  • This embodiment has the advantage that it could leverage the existing capabilities of location finders (e.g. google maps) and could help to work consistently with the latest mappings of the geographic location.
  • location finders e.g. google maps
  • obtaining the up-to-date information with regard to the Network ID and the plurality of cable operators could result in a correct channel map to the user.
  • any changes in the cable transmission or satellite transmission could be reflected to the user. This could also reduce the incorrect installation of parameters that could lead to missing channels and bad audio/video. Hence this could improve the user experience.
  • the database is stored in the television. This embodiment has the advantage that it could avoid the dependency of the external database and ensure that the information is self-contained within the television.
  • the database is hosted by a database service provider.
  • This embodiment could help in avoiding frequent updates to the database embedded in the television receiver, which may be required in case of frequently changing transmission parameters.
  • a constant sync mechanism could be established between the database service provider and the database embedded in the television receiver so that the channel installation parameters used by the television receiver are the updated ones. Further, with switching over from standard definition transmission to high definition transmission, the best parameters required for installation of high definition channels could also be obtained.
  • the method comprises providing an option to manually override the channel map stored in the television receiver.
  • the user could always override the channel map and re-install the channels suitably in case of error in automatic installation of the channel map. This could enhance user satisfaction.
  • the invention also provides an apparatus for performing channel installation in a television receiver, the apparatus comprising:
  • - a location finding unit configured to determine the geographic location of the television receiver; - a processing unit configured to determine if at least one of a) Digital Video Broadcasting - Cable (DVB-C) b) Digital Video Broadcasting - Terrestrial (DVB-T) c) Digital Video Broadcasting - Satellite (DVB-S) transmission media is available at the determined geographical location of the television receiver and if available, choosing one of the available transmission media and obtaining channel installation parameters associated with the chosen transmission media using Digital Video Broadcasting (DVB) tables, the DVB standard tables comprising Service Description Table (SDT) and Network Information Table (NIT) and if none of a ) DVB- C b) DVB- T c) DVB-S transmission media is available, obtaining the channel installation parameters from core MPEG tables, the core MPEG tables comprising the Program Association Table (PAT) and the Program Map Table (PMT);
  • PAT Program Association Table
  • PMT Program Map Table
  • an extraction unit configured to extract a list of available services using the obtained channel installation parameters
  • a storage unit configured to store i) the obtained channel installation parameters and ii) the extracted list of available services as a channel map in the television receiver.
  • Fig. 1 is an exemplary schematic flowchart illustrating the method for performing channel installation in a television receiver according to an embodiment of the present invention
  • Fig. 2 is an exemplary schematic flowchart illustrating the method for performing channel installation on a DVB-C transmission medium according to an embodiment of the present invention
  • Fig. 3 is an exemplary schematic flowchart illustrating the method for performing channel installation on a DVB-T transmission medium according to an embodiment of the present invention
  • Fig. 4 is an exemplary schematic flowchart illustrating the method for performing channel installation on a DVB-S transmission medium according to an
  • Fig. 5 is a schematic block diagram of an apparatus for performing channel installation in a television receiver according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS
  • the method 100 for performing channel installation in a television receiver comprises a step 102 of determining the geographic location of the television receiver.
  • the geographic location of the television receiver could be obtained using the Internet. This has the advantage that the user need not give any input (e.g. telephone area code) to the television receiver to obtain the geographic location of the television receiver.
  • the television receiver automatically could detect the correct location. This could also reduce the incorrect installation of the channel parameters that could lead to missing channels and bad audio/video.
  • the obtained geographic location of the television receiver could include at least one of i) longitude, latitude ii) name of the city iii) name of the country. In cases where the geographic location of the television receiver lies on the border of two or more countries, there is a possibility of receiving signals from multiple countries. In such cases, the geographic location determined could be used by the television receiver to choose the best installation parameters to receive the best of the broadcast transmission.
  • step 104 the determined geographic location of the television receiver is used to determine whether at least one of a) DVB-C b) DVB-T c) DVB-S transmission media is available and if so one of the available transmission medium is chosen.
  • One possible way of choosing the available transmission media is to use the geographic location of the television receiver and determine the transmission medium that is used pre-dominantly substantially at and around the region where the television receiver is geographically located and choose that available transmission medium. This offers simplicity to the user in terms of transmission medium selection.
  • the predominantly used transmission medium could be stored in a database (e.g. within the television receiver). This could enable the reception of maximum number of high quality channels.
  • step 106 the channel installation parameters associated with the chosen available transmission medium are obtained using the Digital Video Broadcasting (DVB) standard tables comprising Service Description Table (SDT) and Network Information Table (NIT).
  • DVD Digital Video Broadcasting
  • SDT Service Description Table
  • NIT Network Information Table
  • step 108 a list of available services are extracted using the obtained channel installation parameters.
  • step 110 i) the obtained channel installation parameters and ii) the list of extracted available services are stored as a channel map in the television receiver.
  • step 104 if none of i) DVB-C b) DVB-T c) DVB-S transmission media is available, then in step 112 the channel installation parameters are determined from core MPEG tables.
  • the core MPEG tables could comprise Program Association Table (PAT) and Program Map Table (PMT).
  • PAT Program Association Table
  • PMT Program Map Table
  • step 108 a list of available services are extracted using the obtained channel installation parameters.
  • step 110 the obtained channel installation parameters and the extracted list of available services are stored as a channel map in the television receiver.
  • Performing the channel installation using the Program Association Table (PAT) and the Program Map Table (PMT) comprises
  • stream of UK, MUX1 contains the following Program Map Tables in the Program Association Table. This list could be obtained from PAT. PMTs of each of the services could be obtained from PMT PIDs. The contents of each of the PMTs could be parsed and stored.
  • PMT contents of BBC ONE are given.
  • the Program Number, Audio PID, Video PID and PCR PID of each service could be stored.
  • a collection of such PIDs corresponding to the PMT could form the channel map.
  • the method 200 for performing the channel installation on the DVB-C transmission medium includes the following steps:
  • Step 202 obtaining the homing frequency associated with a cable operator using the geographic location of the television receiver.
  • the geographic location of the television receiver corresponds to Amsterdam.
  • the homing frequency associated with the cable operator Ziggo which is 369 MHz is obtained (Refer. Table 1 ; Table 1 could be part of the database stored either in the television receiver or could be provided from an external provider.
  • the database could also have information about multiple cable operators if any. In such a scenario, the priority of homing frequencies could also be made available in the database).
  • Step 204 obtaining a plurality of Network ID's transmitted on the obtained homing frequency by tuning the tuner in the television receiver to the obtained homing frequency.
  • the network ID 9003 could be obtained by tuning to the homing frequency 369 MHz. (Refer Table 1). Further, the best Network ID for the region could also be stored in the database.
  • Step 206 selecting the Network ID that is pre-dominantly used substantially at and around the geographic location of the television receiver and obtaining the Network Information Table (NIT) associated with the selected Network ID
  • Step 208 finding a plurality of transmission frequencies associated with the cable operator over which the cable operator is transmitting services using the cable delivery system descriptors available in the Network Information Table (NIT)
  • Step 210 obtaining the Service Description Table (SDT) for each of the transmission frequencies associated with the cable operator
  • Step 212 extracting a list of available services and the associated Logical
  • Step 214 storing the extracted list of available services and the associated
  • Logical Channel Numbers as the channel map in the television receiver along with the homing frequency and the Network ID.
  • the method of performing the channel installation on the DVB-C medium further comprises employing the Network ID and finding whether the geographic location of the television receiver corresponds to more than one region and if so providing an option to a user to choose a cable operator. This could be useful in case multiple cable operators are offering services in the region.
  • Table 1 An exemplary illustration of installation parameters of DVB-C
  • Step 302 accessing the pre-installed software available in the television receiver and based on the name of the country obtaining a plurality of frequency bands and the bandwidth associated with each of the frequency bands over which digital transmission takes place.
  • Step 304 searching each of the obtained frequency bands and finding a plurality of frequencies over which the digital transmission takes place.
  • Step 306 extracting the Service Description Table (SDT) and the Network Information Table (NIT) associated with each frequency.
  • SDT Service Description Table
  • NIT Network Information Table
  • Step 308 extracting a list of available services and the associated Logical Channel Numbers (LCN) using the Network Information Table (NIT) and the Service Description Table (SDT) and
  • Step 310 storing the extracted list of available services and the associated Logical Channel Numbers (LCN) as the channel map in the television receiver along with the plurality of frequencies and the bandwidth.
  • LPN Logical Channel Numbers
  • Terrestrial 697.833 MHz Terrestrial: 482.000 MHz
  • Logical channel 1 MPEG service 4161 (BBC ONE)
  • Logical channel 2 MPEG service 4225 (BBC TWO)
  • Logical channel 7 MPEG service 4351 (BBC THREE)
  • Logical channel 40 MPEG service 4415 (BBC NEWS 24)
  • Logical channel 51 MPEG service 4479 (BBCi)
  • Logical channel 30 MPEG service 4671 (CBBC Channel)
  • the method 400 for performing the channel installation on the DVB-S transmission medium includes the following steps:
  • Step 402 Obtaining i) Low Noise Block ii) polarization iii) forward error correction iv) symbol rate v) homing frequency using the geographic location of the television receiver.
  • the entire spectrum of Satellite is divided into 4 BANDS, low/high (L/H) frequencies and two polarization of Horizontal/V ertical. So the combination of 4 BANDS are (LL, LH, HL, HH). In each of these bands, a band scan of 950 to 2150 MHz is performed. In order to provide optimization, the order in which the 4 bands are searched could be optimized based on satellite which in turn is based on geo location.
  • Step 404 tuning the tuner in the television receiver to the obtained homing frequency and obtaining a plurality of Network Information Table (NIT)
  • Step 406 finding a plurality of transmission frequencies over which the digital transmission takes place employing the satellite delivery system descriptors available in each of the Network Information Table (NIT)
  • Step 408 obtaining the Service Description Table (SDT) for each of the transmission frequencies
  • Step 410 extracting a list of available services using the Service Description
  • Step 412 storing the extracted list of available services as the channel map in the television receiver along with the transmission frequencies.
  • a database could be made available in the television receiver.
  • the database could comprise i) a plurality of geographic locations and associated location information along with a list of cable operators providing service at each geographic location ii) commonly used transmission medium iii) a plurality of homing frequencies iv) a plurality of Network IDs v) symbol rate associated with homing frequency vi) frequency band and bandwidth associated with a country.
  • the parameters stored in the database could be used to perform the channel installation.
  • the database could be hosted by a database service provider.
  • the channel map stored in the television receiver could be manually changed in case the user is not satisfied with the automatic settings of the channel installation parameters.
  • the disclosed method may choose 330MHz as homing frequency of a specific cable operator. In the meantime, the operator could have changed it to say 354MHz. In such circumstances, installation on 330 MHz may not yield the desired channel map. Therefore the user could be provided with an option that allows him to change it to 354 MHz which could yield the correct installation. This could enhance user satisfaction.
  • the apparatus 500 for performing the channel installation in a television receiver includes
  • a location finding unit 502 configured to determine the geographic location of the television receiver
  • a processing unit 504 configured to determine if at least one of a) Digital Video Broadcasting - Cable (DVB-C) b) Digital Video Broadcasting - Terrestrial (DVB-T) c) Digital Video Broadcasting - Satellite (DVB-S) transmission media is available at the determined geographical location of the television receiver and if available, choosing one of the available transmission media and obtaining channel installation parameters associated with the chosen transmission media using Digital Video Broadcasting (DVB) tables, the DVB standard tables comprising Service Description Table (SDT) and Network Information Table (NIT) and if none of a ) DVB- C b) DVB- T c) DVB-S transmission media is available, obtaining the channel installation parameters from core MPEG tables, the core MPEG tables comprising the Program Association Table (PAT) and the Program Map Table (PMT);
  • PAT Program Association Table
  • PMT Program Map Table
  • an extraction unit 506 configured to extract a list of available services using the obtained channel installation parameters
  • a storage unit 508 configured to store i) the obtained channel installation parameters and ii) the extracted list of available services as a channel map in the television receiver.
  • a method for performing channel installation in a television receiver comprises
  • the disclosed method could be used to perform high quality error-free installations in Internet enabled television receivers. Further, this could also reduce field call rates due to wrongly selected region.
  • the disclosed method is applicable for any digital transmission standards for television receivers.
  • Telenet operator in Belgium generally uses Network ID 100 on a homing frequency of 330 MHz. The value 100 could be chosen automatically which reduces the burden on the user).

Abstract

L'invention concerne un procédé pour réaliser l'installation de canaux dans un récepteur de télévision. Le procédé pourrait être utilisé pour réaliser des installations de grande qualité exemptes d'erreurs pour des téléveurs Internet. En outre celui-ci pourrait également réduire les taux d'appel du terrain dus à une région sélectionnée par erreur. Le procédé est applicable à toutes les normes de transmission numérique destinées à la télévision.
EP11729746.5A 2010-06-22 2011-06-14 Configuration des paramètres d'installation dans un récepteur de télévision Withdrawn EP2586194A1 (fr)

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EP10166733 2010-06-22
EP11729746.5A EP2586194A1 (fr) 2010-06-22 2011-06-14 Configuration des paramètres d'installation dans un récepteur de télévision
PCT/IB2011/052564 WO2011161582A1 (fr) 2010-06-22 2011-06-14 Configuration des paramètres d'installation dans un récepteur de télévision

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