EP0539799A2 - Main station for satellite receiving installation - Google Patents

Main station for satellite receiving installation Download PDF

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Publication number
EP0539799A2
EP0539799A2 EP92117589A EP92117589A EP0539799A2 EP 0539799 A2 EP0539799 A2 EP 0539799A2 EP 92117589 A EP92117589 A EP 92117589A EP 92117589 A EP92117589 A EP 92117589A EP 0539799 A2 EP0539799 A2 EP 0539799A2
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EP
European Patent Office
Prior art keywords
outputs
terrestrial
modules
inputs
module
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.)
Withdrawn
Application number
EP92117589A
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German (de)
French (fr)
Other versions
EP0539799A3 (en
Inventor
Klaus Büchner
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.)
F T E Maximal Mayer & Co KG GmbH
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F T E Maximal Mayer & Co KG GmbH
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 F T E Maximal Mayer & Co KG GmbH filed Critical F T E Maximal Mayer & Co KG GmbH
Publication of EP0539799A2 publication Critical patent/EP0539799A2/en
Publication of EP0539799A3 publication Critical patent/EP0539799A3/en
Withdrawn legal-status Critical Current

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    • 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
    • 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]

Definitions

  • the invention relates to a head-end station for community reception systems according to the preamble of patent claim 1.
  • Receiving systems of the type mentioned at the beginning can be connected on the one hand to antenna cables from the parabolic mirror and on the other hand to a receiver.
  • the participants In order to be able to receive programs under public law, in particular the 1st and 2nd programs, the participants must also be able to receive terrestrial programs which can be connected to the television or receiver via terrestrial lines. The consequence of this is that the reception of all programs requires a large number of cables and a high level of wiring, which is undesirable.
  • DE 35 43 229 C1 describes a home distribution network for single and communal antenna systems in which the interconnection of 2 terrestrial frequency ranges - FM and TV with 2 satellite IF ranges (from left - and right-hand polarization) - to 2 Coaxial cable and decoupling through antenna sockets with directional coupling - characteristic goes.
  • the components that can be plugged together are different components.
  • Two separate cables must be installed up to the end user (2-Sat IF signals).
  • DE-AS 22 01 783 describes a busbar arrangement for community antenna systems, onto which amplifiers or converters can be plugged.
  • the object of the invention is to remedy this.
  • the invention is implemented in any case if a head-end station is present which consists of modules which can be plugged together and have inputs and outputs for terrestrial and satellite frequencies.
  • the switch modules are designed in such a way that they can be connected directly to one another without any wiring. This allows head stations with up to 38 users to be set up quickly and easily.
  • a particularly useful embodiment provides that the modules can be connected in series. Within the scope of this inventive concept, it is expedient if at least two rows of modules can be connected in parallel to one another.
  • the modules each have three inputs and three outputs, three of which are provided as connections for subscribers, while the other three outputs are simultaneously provided as connecting bodies between two modules are.
  • the inputs are designed in such a way that they can be plugged together with the outputs of the neighboring module.
  • a basic module is provided which can be connected to a power supply, has three inputs and at least three subscriber outputs.
  • a head-end station 10 for satellite community reception systems is shown with building blocks 12 and 13 which can be connected to one another in an operational manner and with satellite IF inputs 14 and outputs 16, of which the building blocks 12 are of identical construction, while the building block 13 is constructed as a basic building block which can be connected to a power supply 20 and has three inputs 16 and 49 and four outputs 19. Via the cable 22, the output 19 can be connected to an antenna socket (satellite / terrestrial). A connection to a receiver 24 can be established via a terrestrial line 44 and a satellite line 46.
  • the satellite exterior 30 consists of a parabolic mirror 32, an H / V switch 38 and the coaxial cables 40 and 42 for transmitting the signals LNC horizontal 34 and LNC vertical 36.
  • the cable 40 transmits level 1, while the cable 42 transmits the Level 2 transmits.
  • the terrestrial exterior 26 is connected via a multi-range amplifier 28 and the line 29 to the input for terrestrial frequencies 44.
  • the reference number 49 designates the terrestrial output of the first module and the terrestrial input of the adjacent module.
  • the connections 14, 44 and 16, 49 are designed in such a way that they also enable plug connections between the neighboring modules.
  • the subscriber connections 18, 19 transmit the terrestrial frequency range and at the same time each a satellite IF frequency range. Switching between the two Sat IF frequency ranges is done by varying the DC voltage at the subscriber output between 14 and 18 volts. The terrestrial frequency range remains unaffected.
  • the frequency of the terrestrial frequency range is in the range of 47 - 862 MHz, while the frequency of the satellite IF frequency range covers the frequencies of 950 - 1750 MHz.
  • the head-end station 10 consists of the basic unit 13 (SVG 3/4) for supplying up to 4 participants. There are three inputs 16, 49 (2 x satellite IF and 1 x terrestrial frequency range) and four outputs (four participants) are provided.
  • the modules 12 (expansion units SVE 3/3) can be plugged together with the basic unit 3.
  • a multi-range amplifier MA 32 R06 can also be provided as a plug-in unit if no existing amplifier is used.
  • the modules 12 have integrated amplifiers to compensate for the distribution losses.
  • the system is dimensioned so that each divider receives the same RF level regardless of the position of its socket and regardless of the number of modules (size of the head-end station).
  • the extension of the head-end station to the desired number of subscribers is done by plugging in expansion units 12.
  • the terrestrial frequency ranges are fed in either directly on the first SVE module from the existing house system or by using the multi-range amplifier 1 (MA 32 R06 ).
  • the head-end can be expanded up to 19 subscriber connections. More subscriber connections are possible by connecting SVE / SVG blocks at the entrance with distributors.

Abstract

The invention relates to community receiving systems with modules, which can be modularly and operationally connected to one another, with satellite-IF inputs and outputs. Each module has in each case one input and in each case at least one output for the terrestrial frequency band. In each case a terrestrial output of the in each case one module can be connected to the terrestrial input of the in each case adjacent module.

Description

Die Erfindung betrifft eine Kopfstation für Gemeinschaftsempfangsanlagen nach dem Oberbegriff des Patentanspruches 1.The invention relates to a head-end station for community reception systems according to the preamble of patent claim 1.

Empfangsanlagen der eingangs genannten Art sind zum einen an Antennenkabel vom Parabol - spiegel und zum anderen an einen Receiver an - schließbar. Um auch öffentlich - rechtliche Pro - gramme, insbesondere das 1. und das 2. Programm, empfangen zu können, müssen die Teil - nehmer auch terrestrische Programme empfangen können, die mit dem Fernseher bzw. Receiver über terrestrische Leitungen verbindbar sind. Dies hat zur Folge, daß der Empfang aller Programme eine Vielzahl von Kabeln und einen hohen Verschal - tungsaufwand voraussetzt, was unerwünscht ist. In der DE 35 43 229 C1 ist ein Hausverteilernetz für Einzel - und Gemeinschaftsantennenanlagen be - schrieben, bei dem es um die Zusammenschaltung von 2 terrestrischen Frequenzbereichen - FM und TV mit 2 Sat-ZF Bereichen (von links - und rechtsdrehender Polarisation) - auf 2 Koaxialkabel und die Auskopplung durch Antennensteckdosen mit Richtkoppel - Charakteristik geht. Bei den zu - sammensteckbaren Bausteinen (terrestrische Ver - stärker, Weichen, Sat-ZF-Verstärker) handelt es sich um unterschiedliche Komponenten. Dabei müssen 2 getrennte Kabel bis zum Endverbraucher (2-Sat-ZF-Signale) installiert werden. Ferner ist in der DE-AS 22 01 783 eine Sammelschiene - nanordnung für Gemeinschaftsantennenanlagen beschrieben, auf die Verstärker oder Umsetzer aufgesteckt werden können.Receiving systems of the type mentioned at the beginning can be connected on the one hand to antenna cables from the parabolic mirror and on the other hand to a receiver. In order to be able to receive programs under public law, in particular the 1st and 2nd programs, the participants must also be able to receive terrestrial programs which can be connected to the television or receiver via terrestrial lines. The consequence of this is that the reception of all programs requires a large number of cables and a high level of wiring, which is undesirable. DE 35 43 229 C1 describes a home distribution network for single and communal antenna systems in which the interconnection of 2 terrestrial frequency ranges - FM and TV with 2 satellite IF ranges (from left - and right-hand polarization) - to 2 Coaxial cable and decoupling through antenna sockets with directional coupling - characteristic goes. The components that can be plugged together (terrestrial amplifiers, crossovers, satellite IF amplifiers) are different components. Two separate cables must be installed up to the end user (2-Sat IF signals). Furthermore, DE-AS 22 01 783 describes a busbar arrangement for community antenna systems, onto which amplifiers or converters can be plugged.

Ausgehend von dem obigen Stand der Technik liegt der Erfindung die Aufgabe zugrunde, hier Abhilfe zu schaffen.Starting from the above prior art, the object of the invention is to remedy this.

Die gestellte Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruches 1 gelöst.The object is achieved according to the invention by the features of claim 1.

Man erkennt, daß die Erfindung jedenfalls dann verwirklicht ist, wenn eine Kopfstation vorhanden ist, die aus miteinander zusammensteckbaren Bausteinen mit Eingängen und Ausgängen für Terrestrische - und Sat - Frequenzen besteht. Die Umschaltbausteine sind hierbei so beschaffen, daß sie sich ohne Verschaltungsaufwand direkt anein - ander stecken lassen. Damit können Kopfstationen mit bis zu 38 Teilnehmern problemlos und schnell aufgebaut werden.It can be seen that the invention is implemented in any case if a head-end station is present which consists of modules which can be plugged together and have inputs and outputs for terrestrial and satellite frequencies. The switch modules are designed in such a way that they can be connected directly to one another without any wiring. This allows head stations with up to 38 users to be set up quickly and easily.

Weitere zweckmäßige und vorteilhafte Ausge - staltung der Erfindung gehen aus den Unteran - sprüchen hervor.Further expedient and advantageous embodiments of the invention emerge from the subclaims.

Eine besonders zweckmäßige Ausgestaltung sieht vor, daß die Bausteine in Reihe schaltbar sind. Im Rahmen dieses Erfindungsgedankens ist es zweckmäßig, wenn mindestens zwei Reihen von Bausteinen parallel zueinander schaltbar sind.A particularly useful embodiment provides that the modules can be connected in series. Within the scope of this inventive concept, it is expedient if at least two rows of modules can be connected in parallel to one another.

Bezüglich einer konkreten Ausgestaltung der Erfindung ist es zweckmäßig, wenn die Bausteine jeweils drei Eingänge und jeweils drei Ausgänge besitzen, von denen drei Ausgänge als Anschlüsse für Teilnehmer vorgesehen sind, während die an - deren drei Ausgänge gleichzeitig als Verbin - dungskörper zwischen jeweils zwei Bausteinen vorgesehen sind. Dabei sind die Eingänge so beschaffen, daß sie mit den Ausgängen des benach - barten Bausteines zusammensteckbar sind. Schließlich sieht eine zweckmäßige Ausgestaltung der Erfindung vor, daß ein Grundbaustein vorge - sehen ist, der an eine Stromversorgung anschließ - bar ist, drei Eingänge und mindestens drei Teil - nehmerausgänge aufweist.With regard to a specific embodiment of the invention, it is expedient if the modules each have three inputs and three outputs, three of which are provided as connections for subscribers, while the other three outputs are simultaneously provided as connecting bodies between two modules are. The inputs are designed in such a way that they can be plugged together with the outputs of the neighboring module. Finally, an expedient embodiment of the invention provides that a basic module is provided which can be connected to a power supply, has three inputs and at least three subscriber outputs.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung schematisch dargestellt und wird im folgenden näher erläutert.An embodiment of the invention is shown schematically in the drawing and is explained in more detail below.

In der Zeichnung ist eine Kopfstation 10 für Satellitengemeinschaftsempfangsanlagen mit bau - kastenartig und betrieblich miteinander verbindbaren Bausteinen 12 und 13 mit Sat-ZF-Eingängen 14 und Ausgängen 16 dargestellt, von denen die Bausteine 12 gleichartig ausgebildet sind, während der Baustein 13 als ein Grundbaustein ausgebildet ist, der an eine Stromversorgung 20 anschließbar ist und drei Eingänge 16 und 49 sowie vier Aus - gänge 19 aufweist. Über das Kabel 22 kann der Ausgang 19 an eine Antennensteckdose (Sat/terrestrisch) angeschlossen sein. Über eine terrestrische Leitung 44 und eine Sat - Leitung 46 ist eine Verbindung mit einem Receiver 24 herstellbar. Die Satellitenaußenheit 30 besteht aus ei - nem Parabolspiegel 32, einer H/V-Weiche 38 und den Koaxialkabeln 40 und 42 zur Übertragung der Signale LNC horizontal 34 bzw. LNC vertikal 36. Das Kabel 40 überträgt die Ebene 1, während das Kabel 42 die Ebene 2 überträgt. Die terrestrische Außenheit 26 ist über einen Mehrbereichverstärker 28 und die Leitung 29 an den Eingang für terrestrische Frequenzen 44 angeschlossen. Mit der Bezugsziffer 49 ist gleichzeitig der terrestrische Ausgang des ersten Bausteins und der terrestri - sche Eingang des benachbarten Bausteins bezeichnet. Die Anschlüsse 14, 44 und 16, 49 sind so beschaffen, daß sie gleichzeitig auch Steckverbin - dungen zwischen den benachbarten Bausteinen ermöglichen. Die Teilnehmeranschlüsse 18, 19 übertragen den terrestrischen Frequenzbereich und gleichzeitig jeweils einen Sat - ZF - Frequenzbe - reich. Die Umschaltung zwischen den beiden Sat-ZF-Frequenzbereichen erfolgt durch Variation der Gleichspannung am Teilnehmerausgang zwischen 14 und 18 Volt. Der terrestrische Frequenzbereich bleibt davon unbeeinflußt. Die Frequenz des terrestrischen Frequenzbereichs liegt im Bereich von 47 - 862 MHz, während die Frequenz des Sat-ZF-Frequenzbereiches die Frequenzen von 950 - 1750 MHz abdeckt. Im einzelnen besteht die Kopfstation 10 aus der Grundeinheit 13 (SVG 3/4) zur Versorgung von bis zu 4 Teilnehmern. Es sind drei Eingänge 16, 49 (2 x Sat-ZF- und 1 x terrestrischer Frequenzbereich) und vier Ausgänge (vier Teilnehmer) vorgesehen. Die Bausteine 12 (Erweiterungseinheiten SVE 3/3) sind mit der Grundeinheit 3 zusammensteckbar. Es kann ferner auch ein Mehrbereichverstärker MA 32 R06 als Vorsteckeinheit vorgesehen sein, wenn kein vorhandener Verstärker genutzt wird.In the drawing, a head-end station 10 for satellite community reception systems is shown with building blocks 12 and 13 which can be connected to one another in an operational manner and with satellite IF inputs 14 and outputs 16, of which the building blocks 12 are of identical construction, while the building block 13 is constructed as a basic building block which can be connected to a power supply 20 and has three inputs 16 and 49 and four outputs 19. Via the cable 22, the output 19 can be connected to an antenna socket (satellite / terrestrial). A connection to a receiver 24 can be established via a terrestrial line 44 and a satellite line 46. The satellite exterior 30 consists of a parabolic mirror 32, an H / V switch 38 and the coaxial cables 40 and 42 for transmitting the signals LNC horizontal 34 and LNC vertical 36. The cable 40 transmits level 1, while the cable 42 transmits the Level 2 transmits. The terrestrial exterior 26 is connected via a multi-range amplifier 28 and the line 29 to the input for terrestrial frequencies 44. The reference number 49 designates the terrestrial output of the first module and the terrestrial input of the adjacent module. The connections 14, 44 and 16, 49 are designed in such a way that they also enable plug connections between the neighboring modules. The subscriber connections 18, 19 transmit the terrestrial frequency range and at the same time each a satellite IF frequency range. Switching between the two Sat IF frequency ranges is done by varying the DC voltage at the subscriber output between 14 and 18 volts. The terrestrial frequency range remains unaffected. The frequency of the terrestrial frequency range is in the range of 47 - 862 MHz, while the frequency of the satellite IF frequency range covers the frequencies of 950 - 1750 MHz. In detail, the head-end station 10 consists of the basic unit 13 (SVG 3/4) for supplying up to 4 participants. There are three inputs 16, 49 (2 x satellite IF and 1 x terrestrial frequency range) and four outputs (four participants) are provided. The modules 12 (expansion units SVE 3/3) can be plugged together with the basic unit 3. A multi-range amplifier MA 32 R06 can also be provided as a plug-in unit if no existing amplifier is used.

Die Bausteine 12 besitzen integrierte Verstärker zum Ausgleich der Verteilerverluste. Das System ist so dimensioniert, daß jeder Teiler unab - hängig von der Position seiner Anschlußbuchse und unabhängig von der Anzahl der Bausteine (Größe der Kopfstation) die gleichen HF-Pegel erhält. Die Erweiterung der Kopfstation auf die ge - wünschte Teilnehmerzahl geschieht durch Aufstecken von Erweiterungseinheiten 12. Die Einspeisung der terrestrischen Frequenzbereiche erfolgt entweder direkt am ersten SVE - Baustein von der vorhandenen Hausanlage oder durch Verwen - dung des ebenfalls aufsteckbaren Mehrbereich - verstärkers 1 (MA 32 R06). Die Kopfstation ist bis 19 Teilnehmeranschlüsse ausbaubar. Mehr Teil - nehmeranschlüsse sind möglich durch Zusam - menschalten von SVE/SVG - Blöcken am Eingang mit Verteilern.The modules 12 have integrated amplifiers to compensate for the distribution losses. The system is dimensioned so that each divider receives the same RF level regardless of the position of its socket and regardless of the number of modules (size of the head-end station). The extension of the head-end station to the desired number of subscribers is done by plugging in expansion units 12. The terrestrial frequency ranges are fed in either directly on the first SVE module from the existing house system or by using the multi-range amplifier 1 (MA 32 R06 ). The head-end can be expanded up to 19 subscriber connections. More subscriber connections are possible by connecting SVE / SVG blocks at the entrance with distributors.

Claims (6)

1. Kopfstation für Gemeinschaftsempfangsanlagen mit baukastenartig und betrieblich mitein - ander verbindbaren Bausteinen mit Sat-ZF-Eingängen (14) und -Ausgängen, dadurch gekennzeichnet, daß jeder Baustein (12) jeweils einen Eingang (44) und jeweils mindestens einen Ausgang (45, 49) für den terrestrischen Frequenzbereich aufweist und daß jeweils ein terrestrischer Ausgang (49) des jeweils einen Bausteins (12) an den terrestrischen Eingang des jeweils be - nachbarten Bausteins (13) anschließbar ist.1. head station for community reception systems with modular and operationally connectable modules with satellite IF inputs (14) and outputs, characterized in that each module (12) has an input (44) and at least one output (45, 49) for the terrestrial frequency range and that in each case a terrestrial output (49) of the respective component (12) can be connected to the terrestrial input of the adjacent component (13). 2. Kopfstation nach Anspruch 1, dadurch gekennzeichnet, daß die Bausteine (12, 13) in Reihe geschaltet sind.2. Head station according to claim 1, characterized in that the modules (12, 13) are connected in series. 3. Kopfstation nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß mindestens zwei Reihen von Bausteinen (12, 13) parallel zueinander schaltbar sind.3. Head station according to claim 1 or 2, characterized in that at least two rows of modules (12, 13) can be connected in parallel to each other. 4. Kopfstation nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Bausteine (12) jeweils drei Eingänge (14, 44) und jeweils sechs Ausgänge (16, 18, 49) besitzen, von denen drei Ausgänge (18) als Anschlüsse für Teilnehmer vorgesehen sind, während die anderen drei Ausgänge (16, 49) gleichzeitig als Verbindungskörper zwi - schen jeweils zwei Bausteinen (12) vorgesehen sind.4. Head station according to one of claims 1 to 3, characterized in that the modules (12) each have three inputs (14, 44) and six outputs (16, 18, 49), of which three outputs (18) as connections are provided for participants, while the other three outputs (16, 49) are simultaneously provided as connecting bodies between two modules (12). 5. Kopfstation nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Eingänge des einen Bausteins (13) mit den Ausgängen des benachbarten Bausteins (12) zusammensteckbar sind.5. Head station according to one of claims 1 to 3, characterized in that the inputs of the one module (13) with the outputs of the adjacent module (12) can be plugged together. 6. Kopfstation nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß ein Grundbaustein (13) vorgesehen ist, der an eine Stromversorgung (20) anschließbar ist, drei Eingänge und mindestens drei Teilneh - merausgänge (19) aufweist.6. Head station according to one of claims 1 to 5, characterized in that a basic module (13) is provided which can be connected to a power supply (20), has three inputs and at least three subscriber outputs (19).
EP19920117589 1991-10-24 1992-10-15 Main station for satellite receiving installation Withdrawn EP0539799A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19914135051 DE4135051A1 (en) 1991-10-24 1991-10-24 HEADSTATION FOR SATELLITE SYSTEMS
DE4135051 1991-10-24

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Publication Number Publication Date
EP0539799A2 true EP0539799A2 (en) 1993-05-05
EP0539799A3 EP0539799A3 (en) 1993-12-15

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0639902A1 (en) * 1993-08-16 1995-02-22 SPAUN-electronic GmbH Distribution device for the signals from satellite for an antenna installation
DE19507568A1 (en) * 1995-03-03 1996-09-12 Hirschmann Richard Gmbh Co Satellite signal receiving apparatus
FR2825559A1 (en) * 2001-06-05 2002-12-06 Evicom Television signal distribution system uses terrestrial and satellite aerials with amplifiers and distribution panels for multiple users
EP1775866A1 (en) * 2005-10-14 2007-04-18 SPAUN-electronic GmbH & Co. KG Switching device for a satellite receiving installation
GB2433010A (en) * 2005-03-24 2007-06-06 Wandsworth Group Ltd A service system for a building

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0152743A1 (en) * 1984-01-27 1985-08-28 Litton Precision Products International GmbH Modular electrical connector

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2201783B1 (en) * 1972-01-14 1973-07-12 Kathrein Werke Kg BUSBAR ARRANGEMENT FOR A COMMUNITY ANTENNA SYSTEM
DE3543229C1 (en) * 1985-12-06 1987-01-08 Hirschmann Radiotechnik Distribution network for individual and community antenna systems

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0152743A1 (en) * 1984-01-27 1985-08-28 Litton Precision Products International GmbH Modular electrical connector

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
FUNKSCHAU Bd. 62, Nr. 1, 29. Dezember 1989, MÜNCHEN Seiten 47 - 49 , XP000085726 'KABEL MIT DIGITAL MUSIK' *
PATENT ABSTRACTS OF JAPAN vol. 14, no. 161 (E-909)28. März 1990 & JP-A-20 17 776 ( YAGI ) 22. Januar 1990 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0639902A1 (en) * 1993-08-16 1995-02-22 SPAUN-electronic GmbH Distribution device for the signals from satellite for an antenna installation
DE19507568A1 (en) * 1995-03-03 1996-09-12 Hirschmann Richard Gmbh Co Satellite signal receiving apparatus
DE19507568C2 (en) * 1995-03-03 2001-02-22 Hirschmann Richard Gmbh Co Antenna signal receiving device
FR2825559A1 (en) * 2001-06-05 2002-12-06 Evicom Television signal distribution system uses terrestrial and satellite aerials with amplifiers and distribution panels for multiple users
GB2433010A (en) * 2005-03-24 2007-06-06 Wandsworth Group Ltd A service system for a building
EP1775866A1 (en) * 2005-10-14 2007-04-18 SPAUN-electronic GmbH & Co. KG Switching device for a satellite receiving installation

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Publication number Publication date
EP0539799A3 (en) 1993-12-15
DE4135051A1 (en) 1993-04-29

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