ES2579444T3 - Método para compartir archivos entre un grupo de dispositivos de usuario con porciones cruciales enviadas vía satélite y porciones no cruciales enviadas usando una red entre pares - Google Patents

Método para compartir archivos entre un grupo de dispositivos de usuario con porciones cruciales enviadas vía satélite y porciones no cruciales enviadas usando una red entre pares Download PDF

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Publication number
ES2579444T3
ES2579444T3 ES08827108.5T ES08827108T ES2579444T3 ES 2579444 T3 ES2579444 T3 ES 2579444T3 ES 08827108 T ES08827108 T ES 08827108T ES 2579444 T3 ES2579444 T3 ES 2579444T3
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Spain
Prior art keywords
user devices
crucial
crucial portions
peer
portions sent
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Active
Application number
ES08827108.5T
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English (en)
Inventor
David N. Schlacht
Deanna R. Kidd
Hanno Basse
Raynold M. Kahn
Steven Kasakitis
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DirecTV Group Inc
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DirecTV Group Inc
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Filing date
Publication date
Priority claimed from US11/786,103 external-priority patent/US8417939B2/en
Priority claimed from US11/786,100 external-priority patent/US7895341B2/en
Priority claimed from US11/786,136 external-priority patent/US8364778B2/en
Priority claimed from US11/786,214 external-priority patent/US8244884B2/en
Priority claimed from US11/786,215 external-priority patent/US7890047B2/en
Application filed by DirecTV Group Inc filed Critical DirecTV Group Inc
Application granted granted Critical
Publication of ES2579444T3 publication Critical patent/ES2579444T3/es
Active legal-status Critical Current
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
    • H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/76—Arrangements characterised by transmission systems other than for broadcast, e.g. 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]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving video stream encryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
    • H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video 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
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
    • H04N21/4408—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video stream encryption, e.g. re-encrypting a decrypted video stream for redistribution in a home network
    • 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
    • H04N21/47—End-user applications
    • H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • H04N21/47202—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting content on demand, e.g. video on demand
    • 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
    • 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
    • H04N21/6143—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a satellite
    • 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 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/631—Multimode Transmission, e.g. transmitting basic layers and enhancement layers of the content over different transmission paths or transmitting with different error corrections, different keys or with different transmission protocols
    • 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 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/632—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing using a connection between clients on a wide area network, e.g. setting up a peer-to-peer communication via Internet for retrieving video segments from the hard-disk of other client devices
    • 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 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/633—Control signals issued by server directed to the network components or client
    • H04N21/6332—Control signals issued by server directed to the network components or client directed to client
    • H04N21/6334—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key
    • H04N21/63345—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key by transmitting keys
    • 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

Abstract

Un método de distribución de contenido mediante una red de distribución de contenidos a una pluralidad de dispositivos de usuario que comprende: seleccionar la pluralidad de dispositivos de usuario de un grupo de dispositivos de usuario; dividir el contenido en una porción crucial y porciones no cruciales; comunicar las porciones no cruciales a la pluralidad de dispositivos de usuario usando una red entre pares de la pluralidad de dispositivos de usuario sembrando la pluralidad de dispositivos de usuario con diferentes porciones no cruciales y compartiendo las diferentes porciones no cruciales entre la pluralidad de dispositivos de usuario hasta que todas las porciones no cruciales hayan sido recibidas por cada uno de la pluralidad de dispositivos de usuario; después de que todas las porciones no cruciales hayan sido completamente recibidas por un dispositivo de usuario de la pluralidad de dispositivos de usuario, iniciar una solicitud de un usuario de ese dispositivo de usuario a la red de distribución de contenidos de la porción crucial; después de recibir solicitudes de varios usuarios de la pluralidad de dispositivos de usuario de la porción crucial: cifrar la porción crucial para el número de usuarios de la pluralidad de dispositivos de usuario; entonces comunicar la porción crucial a los dispositivos de usuario del número de usuarios vía satélite; descifrar la porción crucial solo en los dispositivos de usuario del número de usuarios; y en cada uno de los dispositivos de usuario del número de usuarios, ensamblar la porción crucial y la porción no crucial para formar el contenido.

Description

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ordenador personal (PC), entendiéndose que el IRD 110 de ejemplo de la FIG. 6 podría usarse en el sistema de DTH 100 de ejemplo de la FIG. 1. Como se muestra, el IRD 110 de ejemplo de la FIG. 6, que recibe una entrada del LNB 405, incluye cualquier variedad de tarjeta(s) de receptor de satélite 602, cualquier variedad de tarjeta(s) de audio/vídeo 604 y cualquier variedad de tarjeta(s) de red 606, cada una de las cuales puede acoplarse a una placa base 608. La tarjeta descodificadora de vídeo/audio 630 podría, por supuesto, integrarse con la tarjeta receptora de satélite 602 y la tarjeta de red 606 puede integrarse en la placa base 608. El IRD 110 también incluye cualquier variedad de lector(es) de tarjetas inteligentes 562 y cualquier variedad de HDD(s) 425 que pueden acoplarse a la placa base 608 o integrarse con las tarjetas 602, 604 y/o 606.
En un ejemplo, la tarjeta receptora de satélite 602 incluye un módulo de extremo frontal 510 y un módulo de transporte 520. La implementación y/o interconexión de estos dispositivos es sustancialmente la misma que se muestra y describe conjuntamente con la FIG. 5 y, así, en aras de la brevedad no se repetirá aquí. El lector interesado se remite a la discusión anterior a propósito de la FIG. 5.
La tarjeta descodificadora de audio/vídeo 604 incluye un descodificador de audio/vídeo 630, un controlador de salida NTSC y/o ATSC 632 opcional, y un controlador de salida de adaptador gráfico de vídeo (VGA) 634. Como se describe más adelante en detalle, la tarjeta receptora de satélite 602 puede recibir y la tarjeta de audio/vídeo 604 puede descodificar la señal recibida del LNB 405.
En operación, una señal de entrada del LNB 405 es recibida por la tarjeta receptora de satélite 602 y pasa a través de una serie de operaciones de procesamiento inicial que incluyen el módulo de extremo frontal 510 y el módulo de transporte 520. Aunque no se ilustran los circuitos funcionales dentro del módulo de transporte 520, pueden, por ejemplo, ser idénticos a aquellos descritos anteriormente a propósito de la FIG. 5. Por ejemplo, el módulo de transporte 520 recibe la corriente de transporte o secuencia de bits de paquetes de datos digitalizados que contienen información de vídeo, audio, programación, y otros datos. La información del paquete digital contiene encabezados identificadores como parte de sus datos de encabezado. Bajo el control de un procesador/controlador principal (normalmente localizado en la placa base 608), el módulo de transporte 520 filtra los paquetes de datos recibidos que actualmente no son de interés. Los paquetes de datos recibidos que son de interés se dirigen a descifrado dentro del módulo de transporte 520. Los paquetes de datos recibidos también pueden cifrarse adicionalmente y guardarse, por ejemplo, por la placa base 608 en el HDD 425.
El módulo de transporte 520 pasa los datos al descodificador de audio/vídeo 630 de la tarjeta del descodificador de vídeo/audio 604. Los datos de interés autorizados se almacenan en la RAM del sistema (no mostrada) para el almacenamiento en memoria intermedia, y el descodificador de vídeo/audio 630 recupera los datos de la RAM según se necesite. Para datos de vídeo, el descodificador de audio/vídeo 630 lee los datos de vídeo codificados de su RAM, y, usando cualquiera de una variedad de técnicas y/o métodos, descodifica los datos de vídeo codificados y guarda los datos de vídeo resultantes en una memoria de trama en la RAM del descodificador de vídeo. Un tiempo después, la imagen puede leerse de la memoria de trama y pasarse a través de la circuitería de visualización al controlador de salida VGA 634 y opcionalmente al controlador de salida NTSC y/o ATSC 632, cuya salida puede acoplarse al dispositivo de visualización 138. La circuitería de visualización también puede generar gráficas y texto para una interfaz de usuario gráfica (GUI), tal como una guía de programas electrónica, para ser visualizada.
Aunque no se muestra, una cualquiera o más de las tarjetas 602-608 puede incluir uno o más procesadores para ejecutar las instrucciones legibles por máquina que pueden usarse para implementar los métodos, procesos, aparato y/o sistemas de ejemplo descritos en el presente documento. Por tanto, la asignación de memoria y funciones de control pueden dividirse arbitrariamente entre las tarjetas 602-608 del IRD 110 de ejemplo de la FIG. 6. Así, una cantidad sustancial, o posiblemente todas, de las funciones de control y de memoria para la operación del sistema desvelado pueden integrarse dentro de una única tarjeta, o alternativamente, pueden incorporarse dentro de la placa base del PC 608. La tarjeta de red 606 puede acoplar el IRD 110 a una red 122 o a otros IRDs.
Aunque los IRDs 110a-110n de ejemplo ilustrados en las FIGS. 4, 5 y 6 se muestran como que tienen una pluralidad de componentes, circuitos y/o dispositivos que están interconectados o acoplados comunicativamente con otros componentes, circuitos y/o dispositivos, tales interconexiones se ilustran a modo de ejemplo y no deben interpretarse como limitantes del modo en el que pueden interconectarse para implementar los métodos, aparato y/o sistemas de ejemplo descritos en el presente documento. Por el contrario, los componentes, circuitos y/o dispositivos descritos anteriormente a propósito de los ejemplos ilustrados de las FIGS. 4-6 pueden interconectarse de cualquier modo adecuado para implementar los métodos, aparato y/o sistemas de ejemplo.
En el sistema 100 de ejemplo ilustrado, el HDD 425 de los IRDs 110a-110n de ejemplo de las FIGS. 4-6 se divide en al menos dos particiones. Una primera partición de red se usa para guardar contenido (por ejemplo, recursos) "empujados" por la HE 102 a los IRDs 110a-110n mediante los satélites 106, 108. Tal contenido empujado es recibido y guardado por los IRDs 110a-110n sin ser seleccionado y/o solicitado por un usuario de un IRD 110. Una segunda partición de usuario se usa para guardar el contenido seleccionado y/o solicitado por el usuario y recibido mediante los satélites 106, 108 y/o descargado mediante una CDN 120. Una solicitud de contenido podría ser para una programa específico o para una categoría específica de programas que cumplen cualquier número de criterios, por ejemplo, género, nombre de actor.
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Claims (1)

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ES08827108.5T 2007-04-11 2008-04-11 Método para compartir archivos entre un grupo de dispositivos de usuario con porciones cruciales enviadas vía satélite y porciones no cruciales enviadas usando una red entre pares Active ES2579444T3 (es)

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
US786136 2007-04-11
US786214 2007-04-11
US11/786,103 US8417939B2 (en) 2007-04-11 2007-04-11 Method and apparatus for file sharing between a group of user devices with encryption-decryption information sent via satellite and the content sent separately
US11/786,100 US7895341B2 (en) 2007-04-11 2007-04-11 Method and apparatus for file sharing between a group of user devices with separately sent crucial portions and non-crucial portions
US786100 2007-04-11
US786215 2007-04-11
US786103 2007-04-11
US11/786,136 US8364778B2 (en) 2007-04-11 2007-04-11 Method and system for using a website to perform a remote action on a set top box with a secure authorization
US11/786,214 US8244884B2 (en) 2007-04-11 2007-04-11 Method and apparatus for file sharing between a group of user devices with crucial portions sent via satellite and non-crucial portions sent using a peer-to-peer network
US11/786,215 US7890047B2 (en) 2007-04-11 2007-04-11 Method and system for file sharing between a group of user devices using obtained permissions
PCT/US2008/004712 WO2009020476A2 (en) 2007-04-11 2008-04-11 Method and apparatus for file sharing between a group of user devices with crucial portions sent via satellite and non-crucial portions sent using a peer-to-peer network

Publications (1)

Publication Number Publication Date
ES2579444T3 true ES2579444T3 (es) 2016-08-11

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WO (1) WO2009020476A2 (es)

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