WO2002025847A1 - Systeme de distribution televisee par satellite - Google Patents

Systeme de distribution televisee par satellite Download PDF

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Publication number
WO2002025847A1
WO2002025847A1 PCT/US2001/029335 US0129335W WO0225847A1 WO 2002025847 A1 WO2002025847 A1 WO 2002025847A1 US 0129335 W US0129335 W US 0129335W WO 0225847 A1 WO0225847 A1 WO 0225847A1
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WO
WIPO (PCT)
Prior art keywords
receiver
receiver modules
programming
satellite
control module
Prior art date
Application number
PCT/US2001/029335
Other languages
English (en)
Inventor
Aaron E. Zydonik
Original Assignee
Zydonik Aaron E
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 Zydonik Aaron E filed Critical Zydonik Aaron E
Priority to AU2001292816A priority Critical patent/AU2001292816A1/en
Publication of WO2002025847A1 publication Critical patent/WO2002025847A1/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
    • H04N21/47—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
    • H04N21/47211—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 pay-per-view content
    • 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
    • H04N21/21—Server components or server architectures
    • H04N21/214—Specialised server platform, e.g. server located in an airplane, hotel, hospital
    • H04N21/2143—Specialised server platform, e.g. server located in an airplane, hotel, hospital located in a single building, e.g. hotel, hospital or museum
    • 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 
    • H04N21/65—Transmission of management data between client and server
    • H04N21/658—Transmission by the client directed to the server
    • H04N21/6582—Data stored in the client, e.g. viewing habits, hardware capabilities, credit card number
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable
    • H04N7/106—Adaptations for transmission by electrical cable for domestic distribution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/20—Adaptations for transmission via a GHz frequency band, e.g. via satellite

Definitions

  • the present invention relates generally to the field of direct broadcast system (DBS) satellite television reception, and specifically to an improved residential distribution system for television signals.
  • DBS direct broadcast system
  • DBS Direct Broadcast Satellite
  • the heart of the DBS system is a satellite in geosynchronous orbit 22,300 miles above the equator that beams a digitally encoded transmission signal to the earth.
  • This signal carries a wide variety of high signal quality television and radio programming.
  • the signal is received by relatively small (18- or 24- inch) parabolic, or "dish" shaped, antennas. Electronics at the antenna amplify the received signal, and downconvert it from the satellite downlink frequency of 12 GHz to 950-2,000 MHz.
  • the downconverted signal is then sent through a high-quality coaxial cable to a DBS receiver.
  • the receiver demodulates the satellite programming signal, decodes the digital signal and extracts the desired and authorized television signal, which is output in a variety of formats for connection to a television and/or audio system for viewing.
  • Every DBS receiver contains a telephone connector, for connection to the residential telephone line.
  • the receiver uses the telephone, on a non-interference basis, to report pay-per-view usage to the programming service provider via a modem and a toll- free number.
  • Service providers also use the telephone line for selective access control, such as blocking certain sports programming when an event is being held in the same geographic area in which the receiver is located.
  • most service agreements are structured as a monthly subscription fee for selected packages of programming, with a small additional monthly fee per additional receiver. This arrangement risks theft of service by, for example, subscribing to three receivers at one residence and physically removing two of the receivers to other residences, thus avoiding the base subscription fee at two of the three homes.
  • a home i.e., every receiver in excess of one per home, be continuously connected to a telephone line.
  • the receivers periodically call the service provider's service center, which verifies the location of the receiver through caller-ID functionality. If a non-primary receiver fails to "phone home" within a reasonable time, e.g., 30 days, all its programming access authorization is terminated.
  • the wiring of a home for more than one DBS receiver additionally entails the provision of a telephone connector in each room where independent program control is desired. Even where a room contains an existing phone connector, it may be occupied by a telephone, or may be inconveniently located, requiring running a telephone cable across the room to the DBS receiver.
  • This system should minimize the need for high-quality, expensive coaxial cable, and ideally should take full advantage of existing home cable networks. Additionally, the system should minimize or eliminate the need to install additional telephone connectors throughout the home. Preferably, the system would reduce the clutter and complexity associated with television programming, resulting in only a television, a cable supplying it with a signal, and a remote control for selecting channels, being necessary in each room to independently enjoy the full range of DBS programming. Finally, a system that aids service providers in the prevention of theft of service would save the industry considerable expense, and foment a more trusting relationship between service providers and consumers.
  • the present invention is a residential digital satellite distribution system for directing satellite programming to a plurality of televisions located within a residence.
  • the system comprises a digital satellite antenna and a multi-receiver device connected to the antenna that includes a plurality of receiver modules.
  • Each receiver module receives digital programming signals from the antenna and extracts programming to produce output television signals.
  • the multi-receiver device is connected to a plurality of television signal cables, which are then connected to televisions within the residence.
  • a plurality of remote control devices are associated with the receiver modules to control their operation.
  • the multi-receiver device of the present invention comprises a plurality of receiver modules grouped together in a junction box, remotely from the televisions to which they supply programming.
  • Access control for all receiver modules is via a single authorization control module, containing an access card.
  • Communication with the service provider for all receiver modules is via a single residential telephone line connected to a modem in the access control module.
  • the distribution system of the present invention utilizes pre-existing television cable in the residence to establish the connection between the television signal outputs of the multi-receiver device and the televisions within the residence.
  • the plurality of receiver modules in the multi-receiver device are programmed with the same identification code.
  • a corresponding identification code and the programming authorization information associated with the residence is contained in an access card within the access control module, thus obviating the need for each receiver module to periodically established communication with the service provider to verify its location.
  • Figure 1 is a schematic representation of the satellite TV distribution system of the present invention, including a block diagram of the multi-receiver device.
  • the present invention comprises a satellite television distribution system, indicated generally at 10.
  • the system comprises a " satellite antenna 12 connected via satellite antenna cables 52 to a multi-receiver device 14.
  • Multi-receiver device 14 distributes digital programming signals from satellite antenna 12 to a plurality of receiver modules 16.
  • Each receiver module 16 decodes the digital programming signal and, if authorized, generates television signals that are distributed to televisions 56.
  • the receiver module 16 is functionally similar to a DBS receiver "set-top box.”
  • the programming extraction at each receiver module 16 is controlled by an RF or UHF remote control 26, typically located with the television 56 in the residence.
  • Programming authorization and accounting for each remote module 16 is performed by an access control module 40, containing an access card 42 and a modem 44. Communication with the service provider is via modem 44 and telephone line 48.
  • Distribution of television signals from the output 24 of multi-receiver device 14 to televisions 56 may advantageously utilize existing television cable wiring within the residence.
  • Satellite antenna 12 is a parabolic or "dish” shaped antenna.
  • Antenna 12 is positioned so as to receive digital broadcast signals from one or more broadcast satellites in geosynchronous orbit.
  • Antenna 12 collects the weak satellite broadcast signal and, by virtue of its parabolic shape, reflects the signal into a feedhorn (not shown) positioned at the focus of the parabaloid.
  • the feedhorn channels the signal into a Low Noise Block (LNB) amplifier (not shown) which downconverts the 12 GHz satellite downlink signal to 950-2,000 MHz. and amplifies it for transmission to a DBS receiver.
  • LNB Low Noise Block
  • Multi-receiver device 14 is operatively connected between the satellite antenna 12 and the televisions 56 in the residence.
  • the multi-receiver device 14 contains a plurality of receiver modules 16, an access control module 40, RF remote control antenna 28, and the concomitant wiring and input/output connectors.
  • the multi-receiver device 14 may be disposed in a junction box, and may be located anywhere in the residence that is convenient, e.g., in the attic, exterior to the house, etc.
  • the junction box housing the multi-receiver device 14 may advantageously be located at an existing cable distribution junction site, such as the point of connection to an incoming cable television service.
  • each receiver module 16 is the functional equivalent of a stand- alone DBS receiver "set-top box" as far as the signal decoding functions, and contains all the circuitry necessary to extract television programming from the digital programming signal, and produce output for a television to display.
  • the receiver module 16 demodulates, decodes, and if necessary decrypts the digital programming signal from satellite antenna 12, supplied to the input of receiver module 16.
  • User channel selection is via an RF or UHF remote control 26. Selected channels are decoded and transmitted at the output of receiver module 16, across television signal cables 22 to television signal outputs 24, unless the selected programming is blocked by access control module 40.
  • Figure 1 depicts a multi-receiver device 14 with four receiver modules 16 installed, the present invention is not so limited.
  • the multi-receiver device 14 could contain any number of receiver modules 16, as dictated by the number of televisions for which independent programming is desired, up to the limits imposed by the LNB on satellite antemia 12, as can be determined by one of ordinary skill in the art.
  • Digital programming signal cable 18 comprises coaxial cable that carries the digital programming signal from input terminals 20 to each receiver module 16.
  • Figure 1 depicts two receiver modules 16 connected to each of two input terminals 20. Actual connection order and placement may vary, so long as each receiver module 16 is connected to a signal from satellite antenna 12. Generally, the loads connected to input terminals 20 should be balanced, and the number of receiver modules 16 must not exceed the number supported by the LNB on the satellite antenna 12.
  • Digital programming signal cable 18 is of type RG-6 or its functional equivalent. This is generally necessary, as receiver modules 16 supply power to satellite antenna 12.
  • the television signal cables 22 connect the outputs of the receiver modules 16 to output terminals 24.
  • the television signal cables 22 comprise a variety of wiring types and corresponding output terminals 24 may comprise a variety of types of connectors, each appropriate to the type of output signal conveyed.
  • NTSC composite video and audio is carried on coaxial cable, which may be of type RG-59, RG-6, or any other type sufficient to transmit television signals, with conventional coaxial connectors.
  • the receiver modules 16 also output television signals as separate video and audio components, as S-VHS, and output audio in stereo and surround-sound formats. All of these outputs are transmitted on conventional electrical wire, and the connectors are RCA-type plugs. Additionally, the receiver modules 16 may output HDTV format signals in an optical format, which are transmitted on fiber optic cables, terminated at fiber optic connectors.
  • the multi-receiver device 14 Since in use, the multi-receiver device 14 will be located remotely from the televisions 56 for which it decodes programming, channel selection on each receiver module 16 will be performed using RF (radio frequency) or UHF (ultra-high frequency) remote control devices 26.
  • RF- or UHF-based remote control devices 26 are necessary, as radio waves can travel through walls to reach the multi-receiver device 14 from within various rooms in the residence.
  • the remote control devices 26 additionally contain some configurable or programmable identification code to distinguish them from one another.
  • Control signals from remote control devices 26 are received at the multi-receiver device 14 by remote control antenna 28, which may be of any suitable size, shape, and placement so as to effectively receive signals from remote control devices 26. Control signals then pass through remote control bus 30, which connects remote control antenna 28 to a selector 32 associated with each receiver module 16.
  • the selector 32 monitors or "snoops" the remote control bus 30 for remote control identification codes transmitted with each command sent by remote control devices 26. Each selector 32 is programmed or configured to recognize one such identification code, and pass the associated command to its associated receiver module 16. Commands not associated with the correct identification code are ignored. The selector 32 thus acts as a "gate” or filter, only allowing control commands from one remote control device 26 to reach its associated receiver module 16.
  • the selector 32 may have its identification code programmed into a non-volatile memory, it may be programmed as part of an initialization routine upon start-up, or it may be configured by orientation of a set of switches, either accessible by the user, i.e., mounted on the housing of multi-receiver device 14, or contained on a printed-circuit board or similar housing of its associated receiver module 16.
  • identification code refers broadly to a means of distinguishing similar functional commands from a plurality of remote control devices 26, and uniquely associating them with a corresponding receiver module 16.
  • An identification code may, for example, be an actual identifying code or address transmitted with each command.
  • the identification code could comprise a unique frequency on which each remote control device 26 transmits its commands.
  • the identification code could comprise each remote control device 26 being assigned a small range of a large code space with which to encode in its commands. The essential requirement is that separate remote control devices 26 in separate rooms within the residence be able to transmit control commands to their respective receiver modules 16 in some manner that allows a selector 32 to identify and pass through those commands directed to its associated receiver module 16, and block all others. Any means known in the art to accomplish this function would fall within the scope and spirit of the present invention.
  • the access control module 40 controls access to programming by receiver modules 16, and communicates with the service provider.
  • some television programming also referred to herein as "content”
  • the "authorization” means either the status of the programming vis-a-vis a particular user, or the process of ascertaining and acting on that status, as the context dictates.
  • Programming is authorized by the service provider when it is included in the user's paid level of service. Programming may also be dynamically authorized, such as pay-per-view content, with payment billed in arrears.
  • Authorization may operate in the negative, i.e., presumptively authorized material, for example, that within the user's paid level of service, may be denied authorization, for example during regional "blackouts" of sporting events. Different portions of the content may be authorized, depending on the level of service a user has purchased from the service provider.
  • information concerning a user's service level is encoded in the access card 42.
  • the access card 42 is a "smart card," a portable medium containing readable and writeable electronic memory.
  • the access card 42 also contains an identification code uniquely associating it with one or more receiver modules 16.
  • the access control module 40 also contains a modem 44 for communication via a telephone line 48, connected to the telephone input 46.
  • the access control module 40 uses the telephone line 48 on a non-interference basis to communicate with the service provider, e.g., reporting pay-per-view usage.
  • Service providers also use telephonic communication initiated by the access control module 40 to verify the physical location of the receiver modules 16, through the telephone number, i.e., via caller-ID functionality.
  • the access control module 40 contains additional electronics, as may be necessary to implement its authorization, communication, and control functions.
  • the access control module 40 may contain a microprocessor or microcontroller, associated memory, and a stored software control program.
  • the access control module 40 communicates with the receiver modules 16 via a control bus 50.
  • the control bus 50 may comprise any suitable physical and functional data communications bus, as are well known in the art, and consequently the details of the control bus 50 are not further explicated herein.
  • DBS service providers have implemented numerous safeguards to prevent unauthorized access of programming.
  • One such safeguard is the requirement that all additional DBS receivers in a residence, i.e., all except the first, must be connected to a telephone line. This allows the service provider to verify the physical location of these additional DBS receivers by requiring that they periodically call the service provider's service center, and allows the service provider to terminate programming authorization for units that fail to be so verified. This approach, however, entails numerous inefficiencies and additional expenses that are mitigated or eliminated by the present invention.
  • each receiver module 16 is only functional when in communication with the access control module 40, and in the embodiment illustrated this is only possible over the control bus 50.
  • the multi-receiver device 14 is connected to the satellite antenna 12 by the satellite antenna cables 52.
  • the satellite antenna cables 52 are coaxial cables of type RG-6, as required to transfer power from the receiver modules 16 to the satellite antenna 12.
  • Figure 1 depicts two satellite antenna cables 52, as required for a dual-output LNB satellite antenna 12, the most common type presently sold for use with multiple DBS receivers.
  • the satellite antenna cables 52 may comprise any number of cables, as required by the number of receiver modules 16 installed in the multi-receiver devise 14, and by the satellite antenna 12.
  • the distribution cables 54 connect the multi-receiver devise 14 to the televisions 56 located in various rooms in the residence.
  • the distribution cables 54 carry demodulated, decoded, and decrypted television signals suitable for direct viewing on the television 56.
  • the television signal is generated by the receiver module 16 in a variety of formats.
  • the distribution cables 54 may comprise coaxial cable (RG-59 is sufficient), copper wire, fiber-optic cable, etc.
  • the present invention has particular utility over the prior art in dramatically reducing installation costs.
  • installation of traditional DBS receivers i.e., "set-top boxes”
  • the entire house must be re- wired, using a more expensive form of coaxial cable.
  • the present invention in this situation requires the new installation of only two satellite antenna cables 52, connecting the satellite antenna 12 with the multi-receiver device 14.
  • the entire network of distribution cables 54 may comprise existing coaxial cable. Even in cases of new construction or initial wiring of a residence with coaxial cable for television signal distribution, use of the present invention will dramatically reduces installation costs by allowing for the use of less expensive RG- 59 type coaxial cable for the distribution network 54.
  • Satellite antenna 12 continuously receives the downlink signal from the DBS satellite (not shown). Satellite antenna 12 downconverts and amplifies the satellite signal, and transmits it across the satellite antenna cable 52 to the multi-receiver device 14 at the input terminals 20.
  • the satellite programming signal is distributed by the satellite programming signal cable 18 to the input of each receiver module 16.
  • the user turns on the television 56, and presses the "power” button on the remote control device 26.
  • the remote control device 26 transmits a "toggle power state” command, along with its unique identification code (as described above).
  • the command and identification code are received by the remote control antenna 28 and transmitted on the remote control bus 30.
  • All selectors 32 monitor the identification code, and compare it to their stored, programmed, or configured code. One, and only one, selector 32 will recognize the identification code, and transmit the "toggle power state" command to its associated receiver module 16.
  • the receiver module 16 powers up its receiver circuits.
  • the receiver module 16 takes the satellite programming signal at its input from the satellite programming signal cable 18 and demodulates it.
  • the receiver module 16 decodes the control channel of the satellite programming signal and extracts information about the programming on its active channel.
  • the active channel may be a default channel, or alternatively, it may be the last channel that the receiver module 16 had previously decoded.
  • the receiver module 16 sends its identification code and information about the programming on its currently active channel over the control bus 50 to the access control module 40.
  • the access control module 40 compares the identification code of that receiver module 16 with the code in the access card 42. If the identification codes match, and the programming is authorized, i.e., it is a channel included in the user's subscription, then the access control module 40 sends a control message across the control bus 50 to the receiver module 16, authorizing the programming.
  • the receiver module 16 Upon receiving authorization from the authorization control module 40, the receiver module 16 proceeds to demodulate, decode, and, if necessary, decrypt the programming from the digital programming signal at its input.
  • the receiver module 16 outputs a television signal across television the signal cable 22 in a variety of formats, as described above.
  • the television signal is transmitted through the distribution cable 54, connected between the output terminal 24 and the television 56.
  • the television 56 receives the television signal from the distribution cable 54 and displays the programming to the user.
  • the user may, from time to time, enter other commands on the remote control device 26, such as for example, to tune to a different channel.
  • the above-described process for transmitting the remote control command through the proper selector 32 to the proper receiver module 16 is repeated.
  • the receiver module 16 decodes control information from the newly requested channel and again requests authorization from the authorization control module across the control bus 50.
  • the request may be, for example, for a pay-per-view channel.
  • the authorization control module 40 will authorize the receiver module 16 to decode the programming, and will continue to monitor the status of the receiver module 16. After a predetermined duration of time has elapsed with the receiver module 16 decoding the pay-per-view channel, the authorization control module will record identifying information about the decoding of the channel.
  • the receiver module 16 having received its authorization, will demodulate and decode the requested channel, outputting a television signal to be viewed by the user on the television 56.
  • the access control module 40 via the modem 44, will detect inactivity on the residential telephone line 48.
  • the access control module 40 will then command the modem 44 to call the toll-free number of the service provider's service center.
  • the access control module 40 is identified by the service center, and uploads the pay-per-view information for addition to the user's next bill.
  • access control module 40 may engage in additional interactions with the receiver module 16, such as locking out certain channels unless a parental access code is entered through the remote control device 26.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
  • Human Computer Interaction (AREA)
  • Details Of Television Systems (AREA)

Abstract

L'invention concerne un système de réception par satellite de diffusion directe qui réduit les coûts d'installation et décourage le vol de service. Une pluralité de modules de récepteurs (16) renfermant tous les circuits nécessaires de formatage, de déchiffrement, de décodage et de démodulation de signaux est colocalisée dans un dispositif à récepteurs multiples (14), l'antenne satellite (12) étant connectée à l'entrée de chaque récepteur. Un module de contrôle d'accès (40) contenant une carte d'accès (42) et un modem connecté à une ligne téléphonique (48) réalise une autorisation de programmation et une communication avec le fournisseur de services pour tous les modules des récepteurs. Le dispositif à récepteurs multiples comprend une antenne servant à la réception des commandes de contrôle à distance et distribue celles-ci à tous les modules des récepteurs par le biais des sélecteurs (32). Les modules des récepteurs génèrent des signaux télévisés servant à la distribution vers des télévisions (56) par des réseaux câblés pré-existants (RG-59), ce qui permet d'éviter d'avoir recours à l'installation du câble RG-6 à partir de l'antenne satellite en direction de chaque télévision. Etant donné qu'une carte d'accès contrôle l'autorisation de programmation pour tous les modules des récepteurs, on évite d'avoir recours au rappel automatique des récepteurs secondaires de satellite de diffusion directe.
PCT/US2001/029335 2000-09-21 2001-09-19 Systeme de distribution televisee par satellite WO2002025847A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001292816A AU2001292816A1 (en) 2000-09-21 2001-09-19 Satellite television distribution system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US66632000A 2000-09-21 2000-09-21
US09/666,320 2000-09-21

Publications (1)

Publication Number Publication Date
WO2002025847A1 true WO2002025847A1 (fr) 2002-03-28

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PCT/US2001/029335 WO2002025847A1 (fr) 2000-09-21 2001-09-19 Systeme de distribution televisee par satellite

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WO2004054143A1 (fr) * 2002-12-12 2004-06-24 Oasis Silicon Systems Ag Systeme de distribution pour radiodiffusion par satellite
WO2004082279A1 (fr) * 2003-03-11 2004-09-23 Thomson Licensing S.A. Appareil et procede de memorisation de signaux et de distribution de ceux-ci par conversion de reception vers des canaux vacants
EP1878241A2 (fr) * 2005-04-01 2008-01-16 The Directv Group, Inc. Reseau intelligent de commutation bidirectionnelle
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US9936171B2 (en) 2005-09-02 2018-04-03 The Directv Group, Inc. Network fraud prevention via registration and verification
US9942618B2 (en) 2007-10-31 2018-04-10 The Directv Group, Inc. SMATV headend using IP transport stream input and method for operating the same

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US5802063A (en) * 1994-04-22 1998-09-01 Thomson Consumer Electronics, Inc. Conditional access filter as for a packet video signal inverse transport system
US5805975A (en) * 1995-02-22 1998-09-08 Green, Sr.; James A. Satellite broadcast receiving and distribution system
US5936660A (en) * 1996-12-12 1999-08-10 Rockwell Semiconductor System, Inc. Digital video converter box for subscriber/home with multiple television sets

Cited By (14)

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Publication number Priority date Publication date Assignee Title
WO2004054143A1 (fr) * 2002-12-12 2004-06-24 Oasis Silicon Systems Ag Systeme de distribution pour radiodiffusion par satellite
US7502588B2 (en) 2002-12-12 2009-03-10 Smsc Europe Gmbh Dissemination system for satellite broadcasting
WO2004082278A1 (fr) * 2003-03-11 2004-09-23 Thomson Licensing S.A. Appareil et methode de distribution de signaux par transposition par abaissement de frequence a des canaux vacants
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