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WO2007143219A2 - Architectures de mise en réseau domestique combinée de vidéo et de données - Google Patents

Architectures de mise en réseau domestique combinée de vidéo et de données Download PDF

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Publication number
WO2007143219A2
WO2007143219A2 PCT/US2007/013419 US2007013419W WO2007143219A2 WO 2007143219 A2 WO2007143219 A2 WO 2007143219A2 US 2007013419 W US2007013419 W US 2007013419W WO 2007143219 A2 WO2007143219 A2 WO 2007143219A2
Authority
WO
WIPO (PCT)
Prior art keywords
converter
client
coupled
signals
information
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.)
Ceased
Application number
PCT/US2007/013419
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English (en)
Other versions
WO2007143219A3 (fr
WO2007143219A9 (fr
WO2007143219A8 (fr
WO2007143219B1 (fr
Inventor
John L. Norin
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.)
AT&T MVPD Group LLC
Original Assignee
DirecTV Group Inc
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 DirecTV Group Inc filed Critical DirecTV Group Inc
Priority to MX2008015655A priority Critical patent/MX2008015655A/es
Priority to BRPI0712581-0A priority patent/BRPI0712581A2/pt
Publication of WO2007143219A2 publication Critical patent/WO2007143219A2/fr
Publication of WO2007143219A3 publication Critical patent/WO2007143219A3/fr
Publication of WO2007143219B1 publication Critical patent/WO2007143219B1/fr
Publication of WO2007143219A8 publication Critical patent/WO2007143219A8/fr
Publication of WO2007143219A9 publication Critical patent/WO2007143219A9/fr
Anticipated expiration legal-status Critical
Ceased 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
    • H04N7/20—Adaptations for transmission via a GHz frequency band, e.g. via satellite
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • H04H40/90—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for satellite broadcast receiving
    • 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

Definitions

  • the present invention relates generally to a satellite receiver system, and in particular, to an antenna assembly for such a satellite receiver system.
  • Satellite broadcasting of communications signals has become commonplace. Satellite distribution of commercial signals for use in television programming currently utilizes multiple feedhorns on a single Outdoor Unit (ODU) which supply signals to up to eight IRDs on separate cables from a multiswitch.
  • ODU Outdoor Unit
  • FIG. 1 illustrates a typical satellite television installation of the related art.
  • System 100 uses signals sent from Satellite A (SatA) 102, Satellite B (SatB) 104, and Satellite C (SatC) 106 (with transponders 28, 30, and 32 converted to transponders 8, 10, and 12, respectively), that are directly broadcast to an Outdoor Unit (ODU) 108 that is typically attached to the outside of a house 110.
  • ODU 108 receives these signals and sends the received signals to IRD 112, which decodes the signals and separates the signals into viewer channels, which are then passed to television 114 for viewing by a user.
  • IRD 112 which decodes the signals and separates the signals into viewer channels, which are then passed to television 114 for viewing by a user.
  • Satellite uplink signals 116 are transmitted by one or more uplink facilities 118 to the satellites 102-106 that are typically in geosynchronous orbit. Satellites 102-106 amplify and rebroadcast the uplink signals 116, through transponders located on the satellite, as downlink signals 120. Depending on the satellite 102-106 antenna pattern, the downlink signals 120 are directed towards geographic areas for reception by the ODU 108.
  • Each satellite 102-106 broadcasts downlink signals 120 in typically thirty-two (32) different sets of frequencies, often referred to as transponders, which are licensed to various users for broadcasting of programming, which can be audio, video, or data signals, or any combination. These signals have typically been located in the Ku-band Fixed Satellite Service (FSS) and Broadcast Satellite Service (BSS) bands of frequencies in the 10-13 GHz range. Future satellites will likely also broadcast in a portion of the Ka-band with frequencies of 18-21 GHz FIG. 2 illustrates a typical ODU of the related art.
  • FSS Fixed Satellite Service
  • BSS Broadcast Satellite Service
  • ODU 108 typically uses reflector dish 122 and feedhorn assembly 124 to receive and direct downlink signals 120 onto feedhorn assembly 124.
  • Reflector dish 122 and feedhorn assembly 124 are typically mounted on bracket 126 and attached to a structure for stable mounting.
  • Feedhorn assembly 124 typically comprises one or more Low Noise Block converters 128, which are connected via wires or coaxial cables to a multiswitch, which can be located within feedhom assembly 124, elsewhere on the ODU 108, or within house 110.
  • LNBs typically downconvert the FSS and/or BSS-band, Ku-band, and Ka-band downlink signals 120 into frequencies that are easily transmitted by wire or cable, which are typically in the L-band of frequencies, which typically ranges from 950 MHz to 2150 MHz. This downconversion makes it possible to distribute the signals within a home using standard coaxial cables.
  • the multiswitch enables system 100 to selectively switch the signals from SatA 102, SatB 104, and SatC 106, and deliver these signals via cables 124 to each of the IRDs 112A-D located within house 110.
  • the multiswitch is a five-input, four-output (5x4) multiswitch, where two inputs to the multiswitch are from SatA 102, one input to the multiswitch is from SatB 104, and one input to the multiswitch is a combined input from SatB 104 and SatC 106.
  • the multiswitch can be other sizes, such as a 6x8 multiswitch, if desired.
  • SatB 104 typically delivers local programming to specified geographic areas, but can also deliver other programming as desired.
  • each broadcast frequency is further divided into polarizations.
  • Each LNB 128 can receive both orthogonal polarizations at the same time with parallel sets of electronics, so with the use of either an integrated or external multiswtich, downlink signals 120 can be selectively filtered out from travelling through the system 100 to each IRD 112A-D.
  • IRDs 112A-D currently use a one-way communications system to control the multiswitch.
  • Each IRD 112A-D has a dedicated cable 124 connected directly to the multiswitch, and each IRD independently places a voltage and signal combination on the dedicated cable to program the multiswitch.
  • IRD 112A may wish to view a signal that is provided by SatA 102. To receive that signal, IRD 112A sends a voltage/tone signal on the dedicated cable back to the multiswitch, and the multiswitch delivers the satA 102 signal to IRD 112A on dedicated cable 124. IRD 112B independently controls the output port that IRD 112B is coupled to, and thus may deliver a different voltage/tone signal to the multiswitch.
  • the voltage/tone signal typically comprises a 13 Volts DC (VDC) or 18 VDC signal, with or without a 22kHz tone superimposed on the DC signal.
  • 13 VDC without the 22kHz tone would select one port
  • 13 VDC with the 22kHz tone would select another port of the multiswitch, etc.
  • There can also be a modulated tone typically a 22 kHz tone, where the modulation schema can select one of any number of inputs based on the modulation scheme.
  • this control system has been used with the constraint of 4 cables coming for a single feedhom assembly 124, which therefore only requires the 4 possible state combinations of tone/no-tone and hi/low voltage.
  • outputs of the LNBs 128 present in the ODU 108 can be combined, or "stacked," depending on the ODU 108 design.
  • the stacking of the LNB 128 outputs occurs after the LNB has received and downconverted the input signal. This allows for multiple polarizations, one from each satellite 102-106, to pass through each LNB 128. So one LNB 128 can, for example, receive the Left Hand Circular Polarization (LHCP) signals from SatC 102 and SatB 104, while another LNB receives the Right Hand Circular Polarization (RHCP) signals from SatB 104, which allows for fewer wires or cables between the feedhorn assembly 124 and the multiswitch.
  • LHCP Left Hand Circular Polarization
  • SatB 104 receives the Right Hand Circular Polarization
  • the Ka-band of downlink signals 120 will be further divided into two bands, an upper band of frequencies called the "A" band and a lower band of frequencies called the "B" band.
  • the various LNBs 128 in the feedhorn assembly 124 can deliver the signals from the Ku-band, the A band Ka-band, and the B band Ka-band signals for a given polarization to the multiswitch.
  • current IRD 112 and system 100 designs cannot tune across this entire resulting frequency band without the use of more than 4 cables, which limits the usefulness of this frequency combining feature.
  • each LNB 128 typically delivers 48 transponders of information to the multiswitch, but some LNBs 128 can deliver more or less in blocks of various size.
  • the multiswitch allows each output of the multiswitch to receive every LNB 128 signal (which is an input to the multiswitch) without filtering or modifying that information, which allows for each IRD 112 to receive more data.
  • current IRDs 112 cannot use the information in some of the proposed frequencies used for downlink signals 120, thus rendering useless the information transmitted in those downlink signals 120.
  • a system in accordance with the present invention comprises a gateway, comprising a tuner, a processor, coupled to the tuner, a converter, coupled to the processor, wherein the tuner tunes to a selected satellite signal and forwards information contained in the satellite signal to the CPU, which processes the information and forwards it to the converter; and an output from the converter for delivering the converted processed information, and a client, coupled to the gateway, wherein the client receives the converted processed information.
  • Such a system optionally further comprises the converter being a powerline converter, a wireless converter, or a powerline converter and a wireless converter such that the gateway has an output from the powerline converter and the wireless converter, the client being a client bridge, a remote client, coupled to the client bridge, for receiving the converted processed information via the remote client, where the remote client converts the converted processed information to a format useable by a monitor for display of the information.
  • the converter being a powerline converter, a wireless converter, or a powerline converter and a wireless converter
  • the gateway has an output from the powerline converter and the wireless converter
  • the client being a client bridge, a remote client, coupled to the client bridge, for receiving the converted processed information via the remote client, where the remote client converts the converted processed information to a format useable by a monitor for display of the information.
  • FIG. 1 illustrates a typical satellite television installation of the related art
  • FIG. 2 illustrates a typical ODU of the related art
  • FIG. 3 illustrates a system diagram of the present invention
  • FIG. 4 illustrates an overall system architecture of the present invention
  • FIGS. 5 and 6 illustrates typical gateways in accordance with the present invention
  • FIG. 7 illustrates various client boxes envisioned within the scope of the present invention.
  • the HDTV signals can be broadcast from the existing satellite constellation, or broadcast from the additional satellite(s) that will be placed in geosynchronous orbit.
  • the orbital locations of the Ku-BSS satellites are fixed by regulation as being separated by nine degrees, so, for example, there is a satellite at 101 degrees West Longitude (WL), SatA 102; another satellite at 110 degrees WL, SatC 106; and another satellite at 119 degrees WL, SatB 104.
  • Additional satellites may be at other orbital slots, e.g., 72.5 degrees, 95, degrees, 99 degrees, and 103 degrees, and other orbital slots, without departing from the scope of the present invention.
  • the satellites are typically referred to by their orbital location, e.g., SatA 102, the satellite at 101 WL, is typically referred to as "101.”
  • Additional orbital slots, with one or more satellites per slot, are presently contemplated at 99 and 103 (99.2 degrees West Longitude and 102.8 degrees West Longitude, respectively).
  • the present invention allows currently installed systems to continue receiving currently broadcast satellite signals, as well as allowing for expansion of additional signal reception and usage.
  • the ports of a multiswitch are selected by the IRD 112 sending a DC voltage signal with or without a tone superimposed on the DC voltage signal to select a satellite 102-106.
  • FOX News Channel may be located on transponder 22 from SatB 104.
  • SatB 104 is typically selected by IRD 112 by sending an 18 V signal with a 22 kHz tone superimposed on the 18 V signal to the multiswitch, which then selects the downlink signal 120 coming from SatB 104. Additional processing is then done on signal 120 within IRD 112 to find the individual channel information associated with FOX News Channel, which is then displayed on monitor 114.
  • the Ka-band of downlink signals 120 is divided into two RF (radio frequency) sub-bands and corresponding Intermediate Frequency (IF) sub-bands, an upper band of frequencies called the "A" band and a lower band of frequencies called the "B" band.
  • IF Intermediate Frequency
  • each LNB 128 typically delivers 48 transponders of information to the multiswitch, but some LNBs 128 can deliver more or less in blocks of various size.
  • the multiswitch allows each output of the multiswitch to receive every LNB 128 signal (which is an input to the multiswitch) without filtering or modifying that information, which allows for each IRD 112 to receive more data.
  • New IRDs 112 can use the information in some of the proposed frequencies used for downlink signals 120, and thus the information transmitted in those downlink signals 120 will be available to viewers as separate viewer channels.
  • the present invention stacks the signals to allow both legacy (older) IRDs 112 and new IRDs 112 to receive the current downlink signals 120 using the already-known selection criteria (13/18 VDC, with or without 22 kHz tones), and for the new IRDs 112 that can receive and demodulate the new satellite downlink signals 120, those same codes will access the new satellite downlink signals 120, because those signals will be intelligently stacked on top of the current downlink signals 120.
  • the design of the Ka/Ku ODU using the newly-assigned Ka frequency bands (18.3 GHz - 18.8 GHz; 19.7 GHz - 20.2 GHz)
  • the present invention downconverts the Ka-band signals and the Ku-band signals to specific IF signal bands, and selectively combines them to enable the reception of both the Ka and the Ku signals using the traditional satellite selection topology of 13V, 18V, 13V/22KHz and 18V/22 KHz.
  • FIG. 3 illustrates a system diagram of the related art.
  • ODU 108 is coupled to distribution system 300, which is coupled to IRD 112 and new
  • IRDs 302 via cables 304.
  • Each of cables 304 carries commands from IRDs 112 and 302 back to distribution system 300, and also carries signals 120 that are received by ODU 108 and stacked by distribution system 300 in accordance with the present invention.
  • IRD 112 also referred to as a legacy IRD 112 or a currently deployed IRD 112, is only capable of demodulating signals in the 950-1450 MHz band, because the receiver located in IRD 112 is designed for that frequency band.
  • IRD 302 can receive signals over the range of 950-2150 MHz.
  • the 1650-2150 MHz band is usually referred to as the "A-band” or "Ka-high band” IF, while the 250-750 MHz band is referred to as the "B-band” or "Ka-low band” IF, as these bands are populated with downlink signals 120 that have been downconverted from the Ka- band.
  • the 950-1450 MHz band is downconverted from the Ku-band of downlink signals 120.
  • IRD 302 Additional functionality in distribution system 300 or in IRD 302 can shift the Ka-low IF to the Ka-high BF as needed by the IRD. Further, IRD 302 may be able to receive Ka-low IF frequencies with additional electronics either between ODU 108, as part of IRD 302, or other methods.
  • IRDs 112 and 302 also have the ability to connect antenna 306 to port 308, where off-air television signals can be coupled to IRD 112 and/or 302 can be processed by IRDs 112 and 302.
  • FIG. 4 illustrates an overall system architecture of the present invention.
  • the present invention envisions an architecture 400 with splitter 402, which allows for all of the satellite downlink signals 120 received by ODU 108 to be sent to individual boxes as before.
  • splitter 402 can send signals on cable 304A to a gateway 404, signals on cable 304B to a client 406, signals on cable 304C to a coax/powerline converter 408, and signals on cable 304D to a coax/wireless converter 410.
  • Gateway 404 is similar to IRD 112 and IRD 302, but will be described further with respect to the present invention.
  • client 406 is also similar to IRD 112 and 302.
  • Coax/powerline converter 408 is then coupled to powerline/coax converter 412 via the power wires in a house 110, and coax 414 is then coupled to monitor 114.
  • coax/wireless converter 410 is coupled via RF transmission to wireless/coax converter 416, which is then connected via coax 418 to monitor 114.
  • FIGS. 5 and 6 illustrates typical gateways in accordance with the present invention.
  • FIG. 5 illustrates Standard Definition (SD) gateway 500 which is similar to gateway 404.
  • Connections 502 and 504 are coupled to cable 304, which receive signals from ODU 108.
  • Connection 502 is then coupled to tuners 506, which are coupled to CPU 508.
  • CPU 508 is coupled to disk 510 to control storage of programming on disk 510 when desired by the viewer or the system provider.
  • Phone connection 512 and power connection 514 are also present in gateway 500, along with ethernet connection 516 and USB connection 518.
  • Connection 504 can also be used to couple gateway 500 to other boxes as described hereinbelow.
  • CPU 508 manages the inputs from connections 502 and 504 to direct the programming present on signals input to connections 502 and 504 to connections 512, 514, 516, and 518, as well as to disk 510 and monitor 114.
  • signals are SD television signals typically encoded in an MPEG-2 format.
  • FIG. 6 illustrates High Definition (HD) gateway 600 which is similar to gateway 404 and gateway 500. However, HD gateway 600 further includes a separate input 602 with standard ATSC tuners 604, which are also controlled by CPU 508, such that these signals can also be presented on monitor 114.
  • HD gateway 600 further includes a separate input 602 with standard ATSC tuners 604, which are also controlled by CPU 508, such that these signals can also be presented on monitor 114.
  • Module 520 is a version of a coax/powerline converter 408, while connections 516 and 518 provide connections to converters 522 and 524, as well as wired connection 526, which allow the combination of gateway 500 (or gateway 600) and converters 522 or 524 to act as cbax/wireless converter 410.
  • gateways 500 and 600 can provide hardwired connections to monitors 114, as well as powerline connections, phone connections, ethernet connections, and wireless connections to other monitors 114 that may be present in house 110.
  • FIG. 7 illustrates various client boxes envisioned within the scope of the present invention.
  • FIG. 7 illustrates SD client box 700, HD client box 702, and client bridge 704, along with
  • SD client box 700 comprises a coax input 714 and power input 716, which are connected to converter 718 and CPU 720.
  • gateway 500 sends programming to SD client box 700 via the power lines through power input 716.
  • SD client box 700 can receive coaxial inputs through coax input 714, which can be from cable television programming, or from another source if desired, such as gateway 500 or gateway 600.
  • HD client box 702 is similar to SD client box 700, but HD client box 702 CPU 722 is able to decode MPEG-4 HD television programming, while CPU 720 is typically limited to SD MPEG-2 decoding.
  • Converter 718 is an embodiment of powerline/coax converter 412 shown in FIG. 4
  • Client bridge 704 again has coax input 714 and power input 716, as well as converter 718.
  • client bridge 704 also comprises a wireless transmitter 724, typically transmitting at a 5.8 GHz frequency with transmission power that typically limits the transmissions 726 from client bridge 704 to a short distance, e.g., approximately 30 feet, such that any remote client 706, 708, 710, or 712 that are in transmission 726 range with client bridge 704.
  • the present invention comprises architectures and systems for delivering satellite signals to a receiver.
  • a system in accordance with the present invention comprises a gateway, comprising a tuner, a processor, coupled to the tuner, a converter, coupled to the processor, wherein the tuner tunes to a selected satellite signal and forwards information contained in the satellite signal to the CPU, which processes the information and forwards it to the converter; and an output from the converter for delivering the converted processed information, and a client, coupled to the gateway, wherein the client receives the converted processed information.
  • Such a system optionally further comprises the converter being a powerline converter, a wireless converter, or a powerline converter and a wireless converter such that the gateway has an output from the powerline converter and the wireless converter, the client being a client bridge, a remote client, coupled to the client bridge, for receiving the converted processed information via the remote client, where the remote client converts the converted processed information to a format useable by a monitor for display of the information.
  • the converter being a powerline converter, a wireless converter, or a powerline converter and a wireless converter
  • the gateway has an output from the powerline converter and the wireless converter
  • the client being a client bridge, a remote client, coupled to the client bridge, for receiving the converted processed information via the remote client, where the remote client converts the converted processed information to a format useable by a monitor for display of the information.

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  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Radio Relay Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

Architectures et systèmes destinés à distribuer des signaux satellite à un récepteur. Un système de l'invention comprend une passerelle, constituée d'un syntoniseur, un processeur, couplé au syntoniseur, un convertisseur, couplé au processeur, le syntoniseur s'accordant sur un signal satellite sélectionné et transmettant des informations contenues dans le signal satellite au processeur de transmission (CPU), lequel traite ces informations et les transmet au convertisseur; et une sortie de convertisseur destinée à délivrer les informations traitées converties, et un client, couplé à la passerelle, ce client recevant les informations traitées converties.
PCT/US2007/013419 2006-06-09 2007-06-07 Architectures de mise en réseau domestique combinée de vidéo et de données Ceased WO2007143219A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
MX2008015655A MX2008015655A (es) 2006-06-09 2007-06-07 Arquitecturas de trabajo en red domestica de datos y video.
BRPI0712581-0A BRPI0712581A2 (pt) 2006-06-09 2007-06-07 dispositivo para entregar sinais de satélites a um receptor e sistema para exibição de sinais de satélites

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US81216506P 2006-06-09 2006-06-09
US60/812,165 2006-06-09

Publications (5)

Publication Number Publication Date
WO2007143219A2 true WO2007143219A2 (fr) 2007-12-13
WO2007143219A3 WO2007143219A3 (fr) 2008-03-13
WO2007143219B1 WO2007143219B1 (fr) 2008-05-08
WO2007143219A8 WO2007143219A8 (fr) 2008-06-19
WO2007143219A9 WO2007143219A9 (fr) 2008-07-31

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/013419 Ceased WO2007143219A2 (fr) 2006-06-09 2007-06-07 Architectures de mise en réseau domestique combinée de vidéo et de données

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Country Link
AR (1) AR061316A1 (fr)
BR (1) BRPI0712581A2 (fr)
MX (1) MX2008015655A (fr)
WO (1) WO2007143219A2 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5592482A (en) * 1989-04-28 1997-01-07 Abraham; Charles Video distribution system using in-wall wiring
GB2381685A (en) * 2001-10-30 2003-05-07 Amino Holdings Ltd Gateway device for converting digital signals to analogue signals

Also Published As

Publication number Publication date
AR061316A1 (es) 2008-08-20
WO2007143219A3 (fr) 2008-03-13
WO2007143219A9 (fr) 2008-07-31
BRPI0712581A2 (pt) 2012-10-16
MX2008015655A (es) 2009-02-16
WO2007143219A8 (fr) 2008-06-19
WO2007143219B1 (fr) 2008-05-08

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