EP3465954B1 - Elément récepteur compact performant pour signaux satellites par combinaison de techniques de capture de bande pleine - Google Patents

Elément récepteur compact performant pour signaux satellites par combinaison de techniques de capture de bande pleine Download PDF

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Publication number
EP3465954B1
EP3465954B1 EP17732332.6A EP17732332A EP3465954B1 EP 3465954 B1 EP3465954 B1 EP 3465954B1 EP 17732332 A EP17732332 A EP 17732332A EP 3465954 B1 EP3465954 B1 EP 3465954B1
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analog
satellite
digital
fbc
frequency
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German (de)
English (en)
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EP3465954A1 (fr
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Christoph Halbig
Sebastian Brüne
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Kathrein SE
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Kathrein SE
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
    • H04H20/61—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast
    • H04H20/63—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast to plural spots in a confined site, e.g. MATV [Master Antenna Television]
    • 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

Definitions

  • the present invention relates generally to the reception of several satellite planes, in particular from several satellites by several receivers or participants and, more specifically, to methods for connecting several participants to several satellite planes, in particular from several satellites, as well as a satellite receiving system for connecting several participants to several satellite planes, in particular from multiple satellites.
  • the US 7,010,265 B2 describes a satellite reception system in which a plurality of signals can be received from a plurality of satellites, the received signals being distributed to a plurality of tuner-demodulator units via a switch. The resulting streams are then forwarded to demultiplexers for the purpose of selecting individual programs. In a manner which is common in and of itself, as is regularly found in such headends, the selection is only controlled after the satellite signals have passed through a highly complex switching matrix.
  • EP 2 852 078 A1 also describes a relevant known prior art.
  • Satellite signals are generally in four SAT levels, differentiated according to frequency band and polarization.
  • the desired SAT level at the output of the SAT converter (LNB) must be selected and supplied, for example via a satellite switching matrix.
  • the switching matrix is configured using control signals from the demodulator, using a DiSEqC command that is transmitted via the respective RF line.
  • the more input signals e.g. from several satellites, are switched to many receiving units (NIMs) for simultaneous reception, the more complex the switching matrix required for this becomes.
  • NAMs receiving units
  • each NIM must be supplied with its own signal line from the SAT switching matrix. If n NIMs are used, n signal lines are also required between the matrix and the NIMs.
  • the demodulator To receive the desired transponder by the respective NIM, its demodulator is programmed by a (central) device controller. The desired reception frequency is set by the demodulator on the tuner. After the RF signal has been demodulated, the demodulator delivers a digital MPEG transport stream (MPEG-TS) at its output.
  • MPEG-TS digital MPEG transport stream
  • the NIMs are controlled by a (central) device controller.
  • the controller evaluates available information on the channel occupancy of the satellite to be received or the desired reception frequency.
  • Each NIM in turn communicates on the RF signal line (e.g. via DiSEqC) with the switching matrix in order to inform it which satellite level on its signal line needs to be connected individually.
  • the respective signal line carries the complete frequency band and thus all transponders of the connected satellite level. If several satellites are to be received at the same time, the principle of selection remains unchanged. Only the complexity of the SAT switching matrix increases, since at least eight input signal lines now have to be processed internally.
  • Deviating from the block diagram according to Figure 1 such a configuration is shown in the block diagram Figure 2 reproduced. Receives differently than in the first example here NIM 2 is the "HH" level of the second satellite. This configuration essentially corresponds to that in FIG US 7,010,265 B2 described system.
  • FBC receiver type 1
  • NIMs individual receiving units
  • FBC receiver type 1
  • a corresponding block diagram is in Figure 3 reproduced.
  • the integrated component FBC receiver, type 1) digitizes the input spectra of the four adjacent SAT levels and, after internal signal processing, outputs them as digital baseband transport streams, currently eight.
  • the selection process is very similar to that of discrete NIMs.
  • the FBC receiver (type 1) is controlled by a (central) device controller. For this purpose, the controller evaluates available information on the channel occupancy of the satellite to be received or the desired reception frequencies.
  • Each FBC module in turn communicates on the HF signal line (e.g. via DiSEqC command) with the switching matrix in order to inform it which satellite level on its signal lines must be individually switched on.
  • single-cable receivers are permanently assigned (paired) and a fixed output frequency of the single-cable matrix assigned to the receiver in order to enable the individual receivers to operate independently. With 24 output frequencies á 50MHz bandwidth in the frequency band 950 ... 2150MHz, there are correspondingly 24 receiver frequency pairs.
  • the tuner of each NIM always remains constant in its reception frequency.
  • the controller evaluates the information available in the single-cable receiver on the channel occupancy of the satellite to be received or the desired program.
  • Each single-cable NIM in turn communicates on the HF signal line via DiSEqC according to the single-cable standard with the single-cable matrix in order to inform the latter which transponder from the adjacent satellite levels has to be individually switched on at its reception frequency.
  • FIG Figure 4 A block diagram illustrating this arrangement is shown in FIG Figure 4 reproduced.
  • the receiver frequency pairings 1 - 4 (e.g. RTL) receive; 5 - 6 (e.g. Tele 5); 7 - 9 (e.g. ARD) and 10 - 14 (e.g. BBC) each have the same transponder.
  • DiSEqC DiSEqC as the communication standard between the receivers (NIMs, single-cable receivers or FBC type 1).
  • the DiSEqC signals are transmitted on the HF lines.
  • switching matrices an essential feature of the known methods is that on the signal lines to the receivers (NIMs FBC type 1), complete satellite levels are always switched on without changing the original content, and the selection of the desired transponders in the receivers (NIMs FBC type 1 ) he follows. If a type 2 FBC module according to the single-cable standard is used, transponders are mapped to its inputs, and the single-cable receiver can also be mapped several times to the output, depending on the program requirements.
  • the invention is based on the object of a method for connecting multiple participants to multiple satellite levels, in particular multiple satellites, and a satellite receiving system for connecting multiple participants to multiple To provide satellite levels, in particular of several satellites, in which the need for a switching matrix is reduced.
  • the invention proposes a method for connecting several participants to several satellite levels, in particular from several satellites, in which received signals from a respective satellite level are selectively converted into a multiplex signal based on requirements in such a way that frequency ranges that meet requirements are sequentially converted (with or without unused frequency ranges), and frequency ranges that do not meet any requirements, and in which the multiplex signals obtained in this way are converted into an MPEG transport stream corresponding to a frequency range, which is made available to one or more participants.
  • Requirements are usually programmed for this by an administrator of the headend, depending on which programs, i.e. transponders or frequency ranges, are to be made available to the subscriber, i.e. the end user, or are requested or requested by them.
  • the requirements are therefore only seldom defined during commissioning and afterwards, for example when new transponders have been assigned or participants wish to receive programs that have not been used up to now.
  • the invention thus enables a significant reduction in the need for the switching matrix, which is particularly advantageous since HF signals of up to 2150 MHz have to be handled here. Therefore, complex requirements with regard to decoupling measures to be taken are also reduced. This effect is even more evident when receiving satellite planes that are present on different satellites.
  • the invention therefore provides for a twofold conversion, with the two conversion steps being coordinated with one another.
  • the satellite signals are converted in a first step under a suitable specification into a specific multiplex signal, which is then converted again in coordination with the multiplex process in order to form corresponding MPEG transport streams.
  • the concept is ultimately based on a preselection of the frequency ranges to be received, which correspond to transponders, which correspond to a requirement, i.e. were programmed by the administrator based on which programs the participants or recipients want, are allowed or should receive.
  • the method therefore provides for a preselection in such a way that frequency ranges which do not correspond to any transponder to be received are not even further taken into account and converted, e.g. B. it can be transponders that contain encrypted signals for which no key is available or transponders that contain signals from a program in a language that is not supported (-> desired / required) etc. In other words You can also find that frequency compression is performed, only further addressing the frequency ranges that are of concern.
  • Arranging in sequence can arrange both the relevant frequency ranges in an ordered and a disordered sequence, with or without gaps.
  • An arrangement that has a frequency structured configuration can be advantageous, although this is no more imperative than the fact that the sequence should be continuous.
  • commissioning the system for the first time however, an attempt should be made to provide a configuration structured according to frequencies.
  • the terminology of a sequence used in the present application thus includes any arrangement of used and unused frequency ranges, with configurations structured according to frequencies being preferred in advantageous embodiments.
  • it remains essential that information about the arrangement of the sequence and when further converting the multiplex signals obtained in this way is taken into account in each case in an MPEG transport stream corresponding to a frequency range.
  • the multiplex signal conversion that is to say the first conversion step or the frequency multiplexing, advantageously contains a frequency range selection and sorting step.
  • optimized sequences can thus be configured depending on the requirements. For example, it is possible to convert all (relevant) transponders from up to 4 satellite levels, for example from one or more satellites, into a sequence or a multiplex strand, for example, in order to place them on just one input for the further conversion step (e.g. from FBC type 1) . This means that more satellite levels can be handled with fewer inputs.
  • a selection step also enables compression since unneeded or free frequency ranges do not require any bandwidth.
  • a sorting process can be used, for example, with a gap-free filling of / by frequency ranges (n), which advantageously leads to lower power consumption (of the modules).
  • n frequency ranges
  • the multiplex signals are advantageously converted in accordance with the frequency range selection and sorting step. Decoding thus takes place in the second conversion step.
  • the two conversion steps can thus be carried out in a particularly simple manner in a coordinated manner, for example by using a common controller which carries out the arrangement in sequence and can carry out or control the conversion of the multiplex signals accordingly
  • the multiplex signal conversion advantageously includes successive filling of available transmission spectra, for example output spectrum FBC-TYP2. Although it cannot be completely detected, it seems to be advantageous to provide a structured frequency arrangement, particularly advantageously without gaps, in order to enable lower power consumption, but then only a reduced one appears Degree of simplification of the control / configuration with the second conversion (eg FBC of type 1) possible. It should again be pointed out that the arrangement in a row is virtually arbitrary, but structuring and / or filling can be advantageous.
  • the conversion of the multiplex signals advantageously includes the successive filling of available MPEG transport stream channels, which, for example, can also be embodied physically as lines.
  • available MPEG transport stream channels which, for example, can also be embodied physically as lines.
  • lines can also be embodied physically as lines.
  • the arbitrary arrangement offers a high degree of flexibility, a structured frequency range arrangement without defects may be desirable, for example, for an initial start-up, although "reserve areas" could also be useful for later program requirements if, for example, one multiplex signal is intended for each satellite or a multiplex signal for a respective plane of a satellite.
  • the multiplex signals are advantageously distributed in such a way that the entire frequency spectrum corresponding to the subscriber requirements is available to each subscriber.
  • At least one analog / digital / analog converter with several inputs, e.g. four inputs for four satellite levels for providing respective multiplex signals; and at least one analog / digital converter, which is supplied with at least one, in particular all multiplex signals and outputs respective MPEG transport streams, it is possible, for example, to receive several satellite levels from one or possibly from several in such a way that preselection is converted into analog / digital / analog Converters (e.g. FCB type 2) in connection with reception in one or more additional analog / digital converter (s) (e.g. FCB type 1) enables significantly lower circuit diagram or layout and routing complexity.
  • analog / digital / analog Converters e.g. FCB type 2
  • FCB type 1 additional analog / digital converter
  • the satellite receiving system advantageously contains at least one analog / digital / analog converter, programmable or controllable by a controller, in particular designed as an FBC-TYP2 module.
  • analog / digital / analog converters or analog / digital converters in FBC technology require less space and power.
  • the programming is implemented by an administrator of the requirements in order to be able to satisfy the wishes of end users or participants.
  • the programming can take place based on a fixed assignment of receiving transponders or, alternatively, based on a selection of transponders to be received, which then optionally deliver optimized, i.e. structured and optionally frequency-compressed, multiplex signals.
  • FCB modules are also available on the market and are therefore inexpensive.
  • the satellite receiving system advantageously contains at least one analog / digital converter, programmable or controllable by a controller, in particular each designed as an FBC-TYP1 module.
  • analog / digital / analog converters or analog / digital converters in FBC technology require less space and power. It is therefore particularly advantageous if both converters are formed exclusively from FCB modules, which also enables joint control by a common controller designed for this purpose and programming by an administrator of the headend is easy to display.
  • first converters or analog / digital / analog converters in particular FBC TYPE2 modules
  • second converters or analog / digital converters in particular FBC-TYP1 modules
  • FBC-TYP1 modules with a number that results from the ratio of a maximum Number of output channels from a first converter or analog / digital / analog converter, in particular FBC-TYP2 module and a processing capacity and a second converter or analog / digital converter, in particular FBC-TYP1 module results.
  • the satellite receiving system advantageously contains analog / digital / analog converters, in particular FBC-TYP2 modules, in a number corresponding to the satellites to be received and analog / digital converters, in particular FBC-TYP1 modules, with a number that is derived from the Ratio of a maximum number of output channels from a first converter or analog / digital / analog converter, in particular FBC-TYP2 module and a processing capacity and a second converter or analog / digital converter, in particular FBC-TYP1 module results.
  • analog / digital / analog converters in particular FBC-TYP2 modules
  • analog / digital converters in particular FBC-TYP1 modules
  • Each type 2 module has four inputs for each level of one satellite and one output with a possible twenty-four transponders. This results in a preferred factor of three, resulting from the possible twenty-four transponders and the eight transponders each (there are also modules with two outputs, but only with only sixteen possible transponders each - this would result in a preferred ratio of one to four )
  • the satellite receiving system advantageously contains two or four analog / digital / analog converters, in particular FBC-TYP2 modules and three, six, nine or twelve analog / digital converters, in particular FBC-TYP1 modules.
  • the satellite receiving system also contains a controller that controls the at least one, in particular the at least two analog / digital / analog converters and the at least one, in particular the at least two analog / digital converters, whereby DISEqC communication, in particular on HF Connecting lines, can be avoided.
  • the satellite receiving system also advantageously contains a controller which controls the at least two analog / digital / analog converters and the at least one analog / digital converter, whereby DISEqC communication, in particular on HF connecting lines, can be avoided.
  • the signals are usually received via one or more satellite dishes equipped with LNBs. As usual, these are signals that are polarized in four planes (usually referred to as HH, VH, HL, VL). According to an important aspect of the invention, these are subjected to a preselection of the transponders to be received (in the exemplary embodiment in one or FBC module type 2 for the reception of a satellite).
  • received signals from a respective satellite based on requirements are selectively converted into a multiplex signal in each case (first converter or digital / analog / digital converter) that frequency ranges that meet the requirements in a row and frequency ranges that do not meet any subscriber requirements do not exist.
  • first converter or digital / analog / digital converter there is a selection and a multiplex of transponders, the selected transponders only appearing once at the output of FBC Type 2 as an example for the first converter.
  • the content of the transponder remains unchanged.
  • the frequencies are set by the controller.
  • sequence is to be understood here as any arrangement by multiplexing the transponders with or without a structure, with or without gaps.
  • the multiplex signals obtained in this way are converted (second converter or analog / digital converter) into an MPEG transport stream corresponding to a frequency range, for example by means of an FBC-TYP1 module as an example of a second converter, which MPEG transport stream is one or is made available to several participants.
  • the reception is the type 2 preselected transponder provided on one line with a fixed assignment line 1 / input 1 corresponding to satellite 1. This means that there is no need for DiSEqC communication on the HF connection line, but rather the reception parameters can be controlled by a (central) ⁇ -controller.
  • FIG 7 Another simplified example is shown to show the advantageous use of two FBC types when receiving more than eight transponders from a satellite, or from up to four independent SAT levels.
  • the transponders can be selected in any combination from the four adjacent SAT levels.
  • the sequence of the transponders at the output can also be freely configured. Both settings are made by the central ⁇ -controller, depending on how it has been programmed by the administrator according to requirements, for example to be able to provide participants with the programs they want, if necessary with a preselection by the administrator. It also configures the type 1 FBC reception blocks.
  • the transponders preselected by FBC type 2 (about 100 transponders are usually provided by the satellite in 4 satellite levels) are provided on the same line for both FBC modules of type 1 as a converted multiplex signal.
  • FBC Type 2 either 24 transponders are output via one line or 16 transponders each via 2 lines - only the first configuration is shown here.
  • the fixed assignment of line 1 / input 1 corresponds to satellite 1 always applies in principle whenever a configuration as shown is used.
  • the maximum expansion possible for a satellite with the current modules is 24 transponders on one line. With the increasing performance of the FBC Type 2, more than 24 transponders can be displayed on one output line in the future.
  • a second operating case, not shown here, is the use of the second output of the FBC block type 2. This means that a maximum of 16 transponders can be implemented per output.
  • the number of times to receive The required type 1 modules result from the ratio of the maximum number of output transponders on type 2 and the number of type 1 receiving channels.
  • the currently available modules offer 24 (one line) or 32 (two lines) output channels (type 2) and eight reception channels (type 1). This means that the current maximum configuration for receiving a satellite is 1 x FBC type 2 combined with 3 x or 4 x FBC type 1 connected by one or two signal lines.
  • FIG 8 Another simplified example is shown as an embodiment of the invention to illustrate the advantageous use of the two FBC types for the reception of more than four SAT levels with only one receiver of type 1, which itself only has four input lines.
  • the desired transponders here only a small number of transponders were selected for the purpose of illustration - these meet requirements and have already been programmed accordingly by the administrator
  • the desired transponders from the respective satellites or independent SAT levels at the inputs of the FBC modules of type 2 are displayed one output line each concentrated. These output lines are fed to the inputs (currently up to four) of the type 1 receiver.
  • line 1 corresponds to satellite 1
  • line 2 corresponds to satellite 2.
  • the central ⁇ -controller makes the selection from the adjacent SAT levels. It also configures the type 1 FBC receive block.
  • FIG 9 an example is shown as an embodiment of the invention to show the advantageous use of the two FBC types for the reception of more than four SAT levels with three receivers of type 1, but which themselves only have four input lines.
  • the desired transponders from the respective satellites or independent SAT levels at the inputs of the FBC modules of type 2 are each concentrated on one output line. These output lines are the inputs (currently up to four) of the three receivers of the type 1 supplied.
  • line 1 corresponds to satellite 1
  • line 2 corresponds to satellite 2.
  • the central ⁇ -controller makes the selection from the adjacent SAT levels. It also configures the type 1 FBC receive block.
  • the reception of the transponder by the FBC components of type 1 is divided as follows: No. 1 receives transponders 1 - 8 from satellite 1 on line 1; No. 2 receives transponders No. 9-14 from satellite 1 on line 1 and transponders No. 15 and 16 from satellite 2 on line 2; No. 3 receives the transponder No. 17 - 24 from satellite 2 on line 2.
  • No. 1 receives transponders 1 - 8 from satellite 1 on line 1
  • No. 2 receives transponders No. 9-14 from satellite 1 on line 1 and transponders No. 15 and 16 from satellite 2 on line 2
  • No. 3 receives the transponder No. 17 - 24 from satellite 2 on line 2.
  • FIG 10 a further example is shown in which the previously explained is used in combination, whereby two type 2 modules each with two output lines and four type 1 modules are used and a transponder change is to be represented in a satellite.
  • the block diagram shows a combination of the previous examples. The reception of 32 of all possible (approx. 100 per satellite) selected (requirements corresponding) transponders from two different satellites or eight independent SAT levels is shown. As in the previous examples, line 1 corresponds to satellite 1, line 2 to satellite 2. In this example, signals from both satellites are received in FBC module type 1 no. 2, while modules 1 and 3 only receive signals from one satellite. Any combination is possible in this regard. From the reception of signals from just a single SAT level of one of the satellites to complete mixed operation. The central ⁇ -controller configures the five FBC modules.
  • the maximum expansion possible with the current modules is 4 satellites or 16 independent SAT levels corresponding to the number of independent input lines on the FBC module type 1 with also four inputs on the FBC module Type 2. With an increasing number of inputs, more than 4 satellites could be received with this principle in the future.
  • the invention is particularly effective when more SAT levels are to be received than there are inputs to FBC modules of type 1 or more transponders are to be received than an FBC module of type 1 can receive.
  • the reception of the transponders by the FBC modules of type 1 is divided as follows: No. 1 receives transponders 1 - 8 from satellite 1 on line 1; # 2 receives transponders # 9-16 from satellite 1 on line 1; No. 3 receives transponders No. 17 and 18 from satellite 1 on line 1 and transponders No. 19 to 24 from satellite 2 on line 2; No. 4 receives the transponders No. 25 - 32 from satellite 2 on line 2.
  • the activation of the corresponding output lines on the FBC modules type 2 is controlled via the central ⁇ controller.
  • FIG 11 a further example is shown, based on a software-supported solution.
  • Fixed input frequencies are assigned to the receivers (type 1).
  • the configuration is done in such a way that, for example, the first eight output frequencies in the spectrum (950 - 2150MHz) are always received by receiver no.1, the following eight frequencies are received by receiver no.2 etc. (assumption: type 1 can receive a maximum of eight frequencies) .
  • This definition applies to all four input lines.
  • the reception example shown in the previous illustrations with the strictly ordered mapping of the input transponder to the output of the FBC type 2 modules is an ideal configuration for headends which, however, also has to be changed while the system is running (e.g. due to a change of transponder by the satellite operator). If the new reception situation only affects one satellite, the original transponder is replaced by the new one at the exit of the affected one FBC block (type 2) replaced at the same output frequency. Any settings that may differ for receiving the new transponder (eg symbol rate) are made on receiver type 1 (here no. 1).
  • the transport stream in the example TS 3 ) contains the programs of the new transponder after the reconfiguration. To ensure uninterrupted operation of the system, all other configurations are retained (see Figure 5 / Example 1 according to the invention).
  • the affected output transponders are output on these modules with the same frequency on the cable assigned to the satellite / FBC module. This is in Figure 12 shown.
  • the receive frequency is now received at the corresponding (new) input. All configuration settings are made by the controller.
  • the transport stream TS 3 contains the programs of the new transponder from satellite 2 (see example 2).
  • the ordered configuration of the FBC modules of type 2 should be aimed for. This can, among other things, reduce the power requirement of the receiving modules.
  • the invention can drastically reduce the need for a complex SAT switching matrix, which can lead to considerable savings potential as well as faster processing. Additional damping measures are only required to a reduced extent.

Claims (11)

  1. Procédé de raccordement de plusieurs abonnés à plusieurs niveaux de satellite, en particulier de plusieurs satellites, dans lequel, dans une première étape de conversion, des signaux reçus des satellites respectifs sont convertis de manière sélective, en fonction de besoins d'abonnés, respectivement en un signal multiplex de telle sorte que des plages de fréquences correspondant aux besoins d'abonnés soient présentes sur une ligne de signaux dans le multiplex de fréquences et que des plages de fréquences ne correspondant pas aux besoins d'abonnés n'y soient pas présentes, et, dans lequel dans une deuxième étape de conversion, une conversion des signaux multiplex ainsi obtenus est réalisée en respectivement un flux de transport MPEG correspondant à une plage de fréquences, qui est mis à la disposition d'un ou plusieurs abonnés,
    dans lequel la première étape de conversion pour fournir les signaux multiplex respectifs comprend une conversion analogique/numérique/analogique avec les étapes suivantes basées sur la technologie de récepteur à capture de bande complète, FBC, de type 2: la numérisation du spectre d'entrée de quatre plans de satellite du satellite respectif, le traitement du signal ainsi que la ré-analogie, et la reproduction en tant que spectre de fréquence HF nouvellement composé sur une ligne de signal en multiplexage par répartition en fréquence, et
    dans lequel, au cours de la deuxième étape de conversion, une conversion analogique/numérique d'au moins un, en particulier de tous les signaux multiplex, est/sont effectuée(s) et les flux de transport MPEG respectifs sont émis, dans lequel, au moyen d'une technologie de récepteur à capture à bande complète, FBC, de type 1 les spectres d'entrée de quatre plans de satellite présents sont numérisés et ils sont émis, après un traitement de signal interne, en tant que flux de transport à bande de base numérique.
  2. Procédé selon la revendication 1, dans lequel la conversion de signal multiplex de la première étape de conversion comprend une étape de sélection et de tri de la plage de fréquences, en particulier un agencement structuré de fréquences dans une séquence.
  3. Procédé selon la revendication 2, dans lequel la conversion du signal multiplex de la deuxième étape de conversion est effectuée selon l'étape de sélection et de tri de la plage de fréquences.
  4. Procédé selon l'une quelconque des revendications 1 à 3, dans lequel la conversion de signal multiplex de la première étape de conversion comprend un remplissage successif de spectres de transmission disponibles.
  5. Procédé selon l'une quelconque des revendications 1 à 4, dans lequel la conversion des signaux multiplex de la première étape de conversion comprend le remplissage successif des lignes ou canaux de flux de transport MPEG disponibles.
  6. Procédé selon l'une quelconque des revendications 1 à 5, dans lequel les signaux multiplex sont répartis de sorte que le spectre de fréquences correspondant à l'ensemble des besoins soit disponible pour chaque abonné.
  7. Système de réception satellitaire pour connecter une pluralité d'abonnés à une pluralité de plans satellites, notamment à partir d'une pluralité de satellites, conçu et destiné à mettre en œuvre un procédé selon l'une quelconque des revendications 1 à 6, comprenant :
    au moins un, en particulier au moins deux premiers convertisseurs analogiques/numériques/analogiques pour fournir les signaux multiplex respectifs de la première étape de conversion, dans lequel le au moins un, en particulier les au moins deux convertisseurs analogiques/numériques/analogiques est/sont conçus comme un dispositif FBC-TYPE 2, dans lequel chaque dispositif FBC-TYPE 2 est conçu pour la numérisation, le traitement du signal ainsi que la ré-analogie du spectre d'entrée de quatre plans de satellite, et la reproduction en tant que spectre de fréquence HF nouvellement composé sur une ligne de signal en multiplexage par répartition en fréquence ; et
    au moins un, en particulier au moins deux, deuxième(s) convertisseur(s) analogique(s)/numérique(s) qui est/sont alimenté(s) respectivement avec au moins un, en particulier tous les signaux multiplex, et qui émet/émettent des flux de transport MPEG respectifs de la deuxième étape de conversion, dans lequel le au moins un, en particulier les au moins deux convertisseur(s) analogique(s)/numérique(s) est/sont chacun conçu(s) comme un module FBC-TYPE 1, chaque module FBC-TYPE 1 étant configuré de sorte qu'il numérise les spectres d'entrée de quatre plans satellites présents et les émet, après traitement interne du signal, sous forme de flux de transport numériques en bande de base.
  8. Système de réception satellitaire selon la revendication 7, dans lequel le au moins un, en particulier les au moins deux premiers convertisseurs analogiques/numériques/analogiques sont conçus pour être programmables ou conçus pour être commandés par un contrôleur.
  9. Système de réception satellitaire selon la revendication 7 ou 8, dans lequel le au moins un, en particulier les au moins deux deuxièmes convertisseurs analogiques/numériques, sont programmables ou conçus pour être commandés par un contrôleur.
  10. Système de réception satellitaire selon l'une quelconque des revendications précédentes 7 à 9, comprenant des premiers convertisseurs analogiques/numériques/analogiques en nombre correspondant aux satellites à recevoir et des deuxièmes convertisseurs analogiques/numériques en nombre résultant du rapport entre un nombre maximal de canaux de sortie d'un premier convertisseur analogique/numérique/analogique et d'une capacité de traitement d'un convertisseur analogique/numérique.
  11. Système de réception satellitaire selon l'une quelconque des revendications précédentes 7 à 10, comprenant en outre un contrôleur commandant le au moins un, en particulier les au moins deux premiers convertisseurs analogiques/numériques/analogiques et le au moins un, en particulier les au moins deux deuxièmes convertisseurs analogiques/numériques, de sorte qu'une communication DISEqC sur des lignes d'interconnexion HF peut être évitée.
EP17732332.6A 2016-06-07 2017-06-07 Elément récepteur compact performant pour signaux satellites par combinaison de techniques de capture de bande pleine Active EP3465954B1 (fr)

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DE102016110463.9A DE102016110463A1 (de) 2016-06-07 2016-06-07 Leistungsfähiger, kompakter Empfangsteil für SAT-Signale durch Kombination von Full-Band-Capturing-Techniken
PCT/EP2017/063759 WO2017211854A1 (fr) 2016-06-07 2017-06-07 Elément récepteur compact performant pour signaux satellites par combinaison de techniques de capture de bande pleine

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US7010265B2 (en) 2002-05-22 2006-03-07 Microsoft Corporation Satellite receiving system with transmodulating outdoor unit
US10034030B2 (en) * 2013-09-24 2018-07-24 DISH Technologies L.L.C. Field-programmable low-noise block downconverter

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EP3465954A1 (fr) 2019-04-10
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