WO2015149834A1 - Procédé de visualisation et d'enregistrement simultanés de contenus à accès conditionnel séparés dans un dispositif d'affichage d'image - Google Patents

Procédé de visualisation et d'enregistrement simultanés de contenus à accès conditionnel séparés dans un dispositif d'affichage d'image Download PDF

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Publication number
WO2015149834A1
WO2015149834A1 PCT/EP2014/056440 EP2014056440W WO2015149834A1 WO 2015149834 A1 WO2015149834 A1 WO 2015149834A1 EP 2014056440 W EP2014056440 W EP 2014056440W WO 2015149834 A1 WO2015149834 A1 WO 2015149834A1
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WO
WIPO (PCT)
Prior art keywords
conditional access
program content
program
content
transport stream
Prior art date
Application number
PCT/EP2014/056440
Other languages
English (en)
Inventor
Ibrahim Ipek
Mustafa Ilker Uzun
Osman Osman
Cengiz Berkay
Ali Kelem
Osman Yilmaz
Original Assignee
Arcelik Anonim Sirketi
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 Arcelik Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Priority to PCT/EP2014/056440 priority Critical patent/WO2015149834A1/fr
Priority to EP14716533.6A priority patent/EP3127340A1/fr
Publication of WO2015149834A1 publication Critical patent/WO2015149834A1/fr

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Classifications

    • 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
    • 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
    • H04N21/4135—Peripherals receiving signals from specially adapted client devices external recorder
    • 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
    • H04N21/432—Content retrieval operation from a local storage medium, e.g. hard-disk
    • H04N21/4325—Content retrieval operation from a local storage medium, e.g. hard-disk by playing back content from the storage medium
    • 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
    • H04N21/43607—Interfacing a plurality of external cards, e.g. through a DVB Common Interface [DVB-CI]
    • 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
    • H04N21/43622—Interfacing an external recording device
    • 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
    • H04N21/4385—Multiplex stream processing, e.g. multiplex stream decrypting
    • H04N21/43853—Multiplex stream processing, e.g. multiplex stream decrypting involving multiplex stream decryption
    • 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
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet
    • 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
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4623—Processing of entitlement messages, e.g. ECM [Entitlement Control Message] or EMM [Entitlement Management Message]

Definitions

  • the present invention relates to a method for simultaneous viewing and recording of separate conditional access contents in an image display device.
  • An image display device such as a TV set with a digital receiver-decoder to satisfactorily process the received services.
  • An image display device may receive programs via cable or satellite broadcasting in the form of separate subscription formats.
  • a conditional access module (CAM) connected to the host device serves to the purpose of decrypting the received programs.
  • the common interface (CI) typically provides that the conditional access process is managed by the conditional access module (CAM) instead of the host device.
  • certain image display devices also provide personal video recording (PVR) functions in order for allowing consumers to record certain program contents according to their interests.
  • PVR personal video recording
  • a conventional structure receiving conditional access content may receive a transport stream via a tuner, the content being rendered such that the transport stream is sent to the conditional access module to be decrypted.
  • the de-multiplexer determines appropriate tracks according to the selected program of the transport stream. The received conditional access content can therefore be displayed or recorded.
  • the receiver-decoder in order for viewing a first decrypted program content and recording a second decrypted program content, the receiver-decoder should have two tuners, which also enables various types of services including interactive functions such as picture-in-picture.
  • the two transport streams may be multiplexed and sent to the CAM.
  • the CAM descrambles the program contents selected respectively for viewing and recording and returns the multiplexed transport streams to the host device.
  • US2003123657 discloses methods and apparatus for simultaneously decrypting multiple services received on separate encrypted multiplexed transport streams.
  • a plurality of encrypted multiplexed transport streams may be received at a television terminal. Each transport stream may have at least one service.
  • the plurality of multiplexed transport streams may be received by, for example, multiple tuning devices and/or provided from a storage device, such as a Personal Versatile Recorder (PVR).
  • PVR Personal Versatile Recorder
  • a plurality of desired services is selected from a subset of the transport streams.
  • the desired services are multiplexed into a desired service multiplex and decrypted by a single decryption engine to provide a desired decrypted multiplex.
  • the desired decrypted multiplex is then de-multiplexed so that the desired services can be decoded and provided to a user.
  • the present invention provides a method for simultaneously viewing and recording separate conditional access contents in an image display device, as provided by the characterizing features defined in Claim 1.
  • Primary object of the present invention is to provide a method for simultaneously viewing and recording separate conditional access contents in an image display device
  • the present invention proposes a method for simultaneously processing at least one or two separate program contents, which may or may not be conditional access contents.
  • Said program contents are selected from two transport streams that are separately sent to a first conditional access module and/or to a second conditional access module to be decrypted in case said first and/or second program contents are conditional access contents.
  • the first and/or second conditional access modules are by-passed in case the first and/or second program contents are not encrypted conditional access contents.
  • One of the first or the second program contents can be displayed while the other one of the first or the second program contents is simultaneously recorded or both program contents can be simultaneously recorded irrespective of the nature of the first or the second program contents being encrypted conditional access content or not.
  • the method further comprises the step of recording one transport stream in an encrypted form and sending at a later time the transport stream previously recorded in encrypted form to the first or second conditional access modules to be decrypted and viewed. It is also possible to simultaneously record another program content at that later time irrespective of the nature of the same being encrypted conditional access content or not.
  • two tuners in the form of a terrestrial tuner and a satellite tuner can be used.
  • two separate transport streams can be receivable by two separate pairs of tuners.
  • the two separate pairs of tuners are respectively formed by a pair of a first terrestrial tuner and a first satellite tuner and by a pair of a second terrestrial tuner or a second satellite tuner.
  • Fig. 1 demonstrates a general schematic representation of the system according to the present invention.
  • Fig. 2 demonstrates a general schematic representation of the system according to another embodiment of the present invention.
  • Fig. 3 demonstrates a general schematic representation of the system while the first and the second conditional access modules are both used and while program contents from different sources are simultaneously processed according to the present invention.
  • Fig. 4 demonstrates another general schematic representation of the system while the first and the second conditional access modules are both used and while program contents from different sources are simultaneously processed according to the present invention.
  • Fig. 5 demonstrates still another general schematic representation of the system while the first and the second conditional access modules are both used and while program contents from different sources are simultaneously processed according to the present invention.
  • Fig. 6 demonstrates yet still another general schematic representation of the system while the first and the second conditional access modules are both used and while program contents from different sources are simultaneously processed according to the present invention.
  • Fig. 7 demonstrates a general schematic representation of the system while the first conditional access module is by-passed and the second conditional access module is in use and while program contents from different sources are simultaneously processed according to the present invention.
  • Fig. 8 demonstrates a general schematic representation of the system while the first conditional access module is in use and the second conditional access module is by-passed and while program contents from different sources are simultaneously processed according to the present invention.
  • Fig. 9 demonstrates a general schematic representation of the system while the first conditional access module as well as the second conditional access module are by-passed and while program contents from different sources are simultaneously processed according to the present invention.
  • Fig. 10 demonstrates a general schematic representation of the system while a transport stream previously recorded in encrypted format is sent to the first conditional access module to be viewed according to the present invention.
  • Fig. 11 demonstrates a general schematic representation of the system while a transport stream previously recorded in encrypted format is sent to the second conditional access module to be viewed according to the present invention.
  • the present invention proposes a method for processing at least a first program content and at least a second program content, said program contents being respectively selected from at least a first transport stream and at least a second transport stream, the method for processing at least a first program content and at least a second program content being applicable by an image display device in communication with a first conditional access module inserted in a first common interface (8) and a second conditional access module inserted in a second common interface (9), said image display device being further in communication with a first tuner (1) to receive the first transport stream and a second tuner (2) to receive the second transport stream, each of the transport streams conventionally comprising multiple programs per transport stream.
  • the image display device in accordance with the invention can be connected to a set-top box, the latter having two tuners so that a consumer can be watching one program while recording another program. Accordingly, the image display device itself or the receiver can have multiple tuner/demodulators (7) suitable for receiving broadcast multimedia content.
  • receivers capable of receiving and tuning to signals of different generations e.g. DVB-T and DVB-T2, DVB-S and DVB-S2, DVB-C and DVB-C2 may be in use.
  • the first transport stream is sent by a first parallel line (11) to the first conditional access module to be decrypted.
  • a de-multiplexer determines appropriate tracks according to the selected program of the transport stream. The received conditional access content can therefore be displayed or recorded.
  • the first conditional access module is by-passed by a first by-pass-line (13) and the received program content can therefore be directly displayed or recorded.
  • the second transport stream is sent by a second parallel line (12) to the second conditional access module to be decrypted.
  • the received conditional access content can therefore be recorded while the first program content is being displayed or recorded, or displayed while the first program content is being recorded.
  • the second conditional access module is by-passed by a second by-pass-line (14) and the received program content can therefore be directly recorded while the first program content is being displayed or recorded, or displayed while the first program content is being recorded, irrespective of the nature of the first program content being encrypted conditional access content or not.
  • the first and second program contents can either be both recorded or while one of them is being recorded, the other can be watched.
  • the microcontroller (10) may record the first transport stream received via the first tuner (1), and from which an encrypted conditional access content is selectable, on a storage medium such as HDD in encrypted format, and send this first transport stream previously recorded in encrypted format to the first conditional access module via its input/output pin to be decrypted and viewed at a later time than the time of recording the first transport stream.
  • the user can simultaneously record at that later time a second program content selected from the second transport stream irrespective of the nature of the same being encrypted conditional access content or not.
  • the microcontroller (10) may record the second transport stream received via the second tuner (2), and from which an encrypted conditional access content is selectable, on a storage medium in encrypted format, and send the second transport stream previously recorded in encrypted format to the second conditional access module via its input/output pin to be decrypted and viewed at a later time than the time of recording the second transport stream.
  • the user can simultaneously record the first program content at that later time irrespective of the nature of the same being encrypted conditional access content or not.
  • the first program content may be received via a first terrestrial tuner (3) or a first satellite tuner (5). If the first program content selected from the first transport stream is encrypted conditional access content, the first transport stream is sent to the first conditional access module to be decrypted. If the first program content received via the first terrestrial tuner (3) or the first satellite tuner (5) is not encrypted, the first conditional access module is by-passed and the received program content can therefore be directly displayed or recorded.
  • the second program content may be received via a second terrestrial tuner (4) or a second satellite tuner (6). If the first program content selected from the second transport stream is encrypted conditional access content, the second transport stream is sent to the second conditional access module to be decrypted. If the second program content received via the second terrestrial tuner (4) or the second satellite tuner (6) is not encrypted, the second conditional access module is by-passed and the received program content can therefore be directly displayed or recorded.
  • the microcontroller (10) can perform the requested operation of viewing a program content selected from a transport stream previously recorded in encrypted format in a flexible manner such that any one of the conditional access modules can be employed.
  • the present invention proposes a method for simultaneously processing at least a first program content and/or at least a second program content, said program contents being respectively selected from at least a first transport stream and a second transport stream, the method for processing at least a first program content and a second program content being applicable by an image display device in communication with a first conditional access module and a second conditional access module, said image display device being further in communication with a first tuner (1) to receive the first transport stream and a second tuner (2) to receive the second transport stream.
  • the method in accordance with the invention comprises the steps of a) sending the first transport stream and/or the second transport stream respectively to the first conditional access module and/or to the second conditional access module to be decrypted in case the first and/or second program content respectively received via the first and second tuners (1, 2) and respectively selected from the first and second transport streams is encrypted conditional access content and, b) by-passing the first and/or second conditional access modules in case the first program content and/or the second program content is respectively not encrypted conditional access content.
  • the method further comprises the step of simultaneously displaying one of the first or the second program contents and recording the other one of the first or the second program contents irrespective of the nature of the first or the second program contents being encrypted conditional access content or not.
  • the method further comprises the step of simultaneously recording the first and the second program contents irrespective of the nature of the first or the second program contents being encrypted conditional access content or not.
  • said method further comprises the step of, a) recording a transport stream from which an encrypted conditional access content is selectable on a storage medium in encrypted format and, b) sending the transport stream previously recorded in encrypted format to the first or second conditional access modules to be decrypted and viewed at a later time than the time of recording.
  • the method further comprises the step of simultaneously recording another program content at that later time irrespective of the nature of the same being encrypted conditional access content or not.
  • the first tuner (1) receiving the first transport stream and said second tuner (2) receiving the second transport stream are respectively a terrestrial tuner and a satellite tuner.
  • each of the first and the second transport streams are respectively receivable by two separate pairs of tuners.
  • the two separate pairs of tuners are respectively formed by a pair of a first terrestrial tuner (3) and a first satellite tuner (5) and by a pair of a second terrestrial tuner (4) or a second satellite tuner (6).
  • said method further comprises the step of deactivating demodulators (7) in association with any tuners during the step of sending the transport stream previously recorded in encrypted format to the first or second conditional access modules to be decrypted and viewed at a later time than the time of recording.
  • the invention therefore provides a simple yet very efficient method for simultaneously displaying and recording of program contents and also enables recording of conditional access contents to be decrypted for displaying at a later time during which another conditional access program content can be recorded.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

La présente invention concerne un procédé de visualisation et d'enregistrement simultanés de contenus à accès conditionnel séparés dans un dispositif d'affichage d'image. L'invention réalise un procédé de traitement d'au moins un premier contenu de programme et un deuxième contenu de programme, lesdits contenus de programme étant sélectionnés parmi au moins un premier flux de transport et un deuxième flux de transport. Le procédé de traitement d'au moins un premier contenu de programme et un deuxième contenu de programme peut être mis en œuvre par un dispositif d'affichage d'image en communication avec un premier module d'accès conditionnel et un deuxième module d'accès conditionnel, ledit dispositif d'affichage d'image étant en outre en communication avec un premier syntoniseur pour recevoir le premier flux de transport et avec un deuxième syntoniseur pour recevoir le deuxième flux de transport.
PCT/EP2014/056440 2014-03-31 2014-03-31 Procédé de visualisation et d'enregistrement simultanés de contenus à accès conditionnel séparés dans un dispositif d'affichage d'image WO2015149834A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/EP2014/056440 WO2015149834A1 (fr) 2014-03-31 2014-03-31 Procédé de visualisation et d'enregistrement simultanés de contenus à accès conditionnel séparés dans un dispositif d'affichage d'image
EP14716533.6A EP3127340A1 (fr) 2014-03-31 2014-03-31 Procédé de visualisation et d'enregistrement simultanés de contenus à accès conditionnel séparés dans un dispositif d'affichage d'image

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2014/056440 WO2015149834A1 (fr) 2014-03-31 2014-03-31 Procédé de visualisation et d'enregistrement simultanés de contenus à accès conditionnel séparés dans un dispositif d'affichage d'image

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WO2015149834A1 true WO2015149834A1 (fr) 2015-10-08

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EP (1) EP3127340A1 (fr)
WO (1) WO2015149834A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018041518A1 (fr) * 2016-08-31 2018-03-08 Arcelik Anonim Sirketi Système de configuration de gestion d'interface multiple commune dans un dispositif d'affichage d'image

Citations (7)

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Publication number Priority date Publication date Assignee Title
US20020051469A1 (en) * 2000-10-26 2002-05-02 Koninklijke Philips Electronics N.V. Decoder supporting multiple inputs
US20030123657A1 (en) * 2001-12-31 2003-07-03 General Instrument Corporation Methods and apparatus for simultaneously decrypting multiple services received on separate multiplexed transport streams
US20040102154A1 (en) * 2002-11-21 2004-05-27 Klauss Peter M. Method and apparatus for ensuring reception of conditional access information in multi-tuner receivers
EP1463320A2 (fr) * 2003-03-26 2004-09-29 Sony United Kingdom Limited Contrôleur d'interface commun et procédé de décodage de canaux de flux de transport
US20090210912A1 (en) * 2008-02-19 2009-08-20 Chris Cholas Multi-stream premises apparatus and methods for use in a content-based network
WO2013139717A1 (fr) * 2012-03-19 2013-09-26 Smardtv S.A. Système de module d'accès conditionnel de type interface commune (cicam) pour traiter des flux de transport de programmes multiples
WO2013139696A1 (fr) * 2012-03-19 2013-09-26 Smardtv S.A. Système et procédé de réseautage de fonctionnalités d'accès conditionnel

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020051469A1 (en) * 2000-10-26 2002-05-02 Koninklijke Philips Electronics N.V. Decoder supporting multiple inputs
US20030123657A1 (en) * 2001-12-31 2003-07-03 General Instrument Corporation Methods and apparatus for simultaneously decrypting multiple services received on separate multiplexed transport streams
US20040102154A1 (en) * 2002-11-21 2004-05-27 Klauss Peter M. Method and apparatus for ensuring reception of conditional access information in multi-tuner receivers
EP1463320A2 (fr) * 2003-03-26 2004-09-29 Sony United Kingdom Limited Contrôleur d'interface commun et procédé de décodage de canaux de flux de transport
US20090210912A1 (en) * 2008-02-19 2009-08-20 Chris Cholas Multi-stream premises apparatus and methods for use in a content-based network
WO2013139717A1 (fr) * 2012-03-19 2013-09-26 Smardtv S.A. Système de module d'accès conditionnel de type interface commune (cicam) pour traiter des flux de transport de programmes multiples
WO2013139696A1 (fr) * 2012-03-19 2013-09-26 Smardtv S.A. Système et procédé de réseautage de fonctionnalités d'accès conditionnel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018041518A1 (fr) * 2016-08-31 2018-03-08 Arcelik Anonim Sirketi Système de configuration de gestion d'interface multiple commune dans un dispositif d'affichage d'image

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