EP0078494A2 - Receiving device for the reception of satellite transmissions - Google Patents
Receiving device for the reception of satellite transmissions Download PDFInfo
- Publication number
- EP0078494A2 EP0078494A2 EP82109906A EP82109906A EP0078494A2 EP 0078494 A2 EP0078494 A2 EP 0078494A2 EP 82109906 A EP82109906 A EP 82109906A EP 82109906 A EP82109906 A EP 82109906A EP 0078494 A2 EP0078494 A2 EP 0078494A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- antenna
- side circuit
- line
- control commands
- circuit device
- 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.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
Definitions
- the invention relates to a receiving device of the type specified in the preamble of claim 1.
- radio and television programs can be received, which are emitted by a fixed radio satellite.
- the receiving antenna is aimed at the satellite.
- a specific coverage area is assigned to a broadcast satellite. In particular in peripheral areas of such coverage areas, several coverage areas overlap, so that broadcasts of one or more other satellites can also be received there by a receiving device specified at the beginning.
- these satellites can also have other orbit positions and a different polarization of the emitted waves for the transmission of their programs.
- a user of a receiving device specified at the outset wants to receive the program of these satellites in an area which is also in the coverage area of other satellites with a different polarization and / or orbit position, it is necessary that the polarization and / or the setting of the receiving antenna be switchable.
- a receiving device specified at the outset is known, for example, from the publication "Die Brücke von Struktur” No. 88, edition 2/1981 from Hirschmann, pages 3 to 9.
- an antenna-side circuit device which is referred to as an external module, is connected to the parabolic antenna and can be switched over in an expansion stage to the reception of left-handed or right-handed circularly polarized waves.
- the receiver device connected to the antenna-side circuit device of the known receiving device via a coaxial antenna line consists of an internal assembly for individual systems with a tunable frequency converter and with a frequency demodulator and a television receiver.
- the desired reception channel for satellite broadcasting can be set on the tuner of the frequency converter.
- antennas for receiving right-handed or left-handed circular-polarized waves are known which, depending on the direction of rotation of the waves, switch two antenna halves in parallel or antiparallel by means of a relay unit.
- a multi-core control cable connects the relay unit of the antenna with an operating device.
- the invention is based on the object of transmitting the control commands for switching in the antenna-side circuit device or on the antenna without additional control lines from the receiver device to the antenna-side circuit device in a receiving device of the type specified.
- the object is achieved according to the invention by the characterizing features of claim 1 in an advantageous manner.
- the invention has the particular advantage that in addition to the antenna line, no further lines, in particular control lines, have to be laid between the antenna-side circuit device and the receiver device. This saves additional installation work, particularly in the case of a building installation, and avoids additional sources of interference for the receiving device.
- the satellite radio receiving device shown in the single figure of the drawing contains a parabolic antenna 1, which is connected via two short lines 2 and 3 to the input of a polarization converter 4 of an antenna-side circuit device 5.
- the antenna-side circuit device can be an integral part of the parabolic antenna or, as in the exemplary embodiment shown, is arranged in the immediate vicinity of the parabolic antenna and, following the polarization converter, contains a frequency converter 6 which amplifies the frequency received by the parabolic antenna after a signal amplifier conversion into a frequency that can be transmitted on a coaxial cable in the frequency range of 1 GHz.
- the output 7 of the antenna-side circuit device 5 connects a coaxial antenna line 8 to the input 9 of a receiving means 1 0, containing essentially a tunable frequency converter 11, a frequency demodulator 12 and a device connected to the output of the frequency demodulator reproducing apparatus 13 for image and / or sound .
- the parabolic antenna 1 is designed for the reception of circular right-handed and circular left-handed waves, of which the signals of the former waves reach the input of the polarization converter 4 via line 2 and the signals of the latter waves via line 3.
- the polarization converter contains a polarization switch which is switched by a polarization switch-14 in accordance with the control commands at its control inputs 15 and 16 and connects either the one antenna output via line 2 or the other antenna output via line 3 to the input of the frequency converter 6.
- parabolic antenna 1 in the exemplary embodiment shown can be set to two reception positions by means of an antenna transmission 17 in accordance with the control commands at its control inputs 18 and 19.
- the reception setting of the parabolic antenna 1 and the switching state of the antenna-side switching device 5 is dependent on the reception channel which is on a Channel selection device 2o of the tunable frequency converter 11 of the receiver device 1o is set. Accordingly, the channel selection device generates control commands for setting the parabolic antenna and the antenna-side circuit device. These control commands are transmitted from the receiver device 10 to the antenna-side circuit device 5 via the antenna line 8.
- a coupling arrangement 21 is connected to the input 9 of the receiver device, which converts the control commands generated by the channel selection device 20 via control lines 22 into a short pulse telegram and couples this into the antenna line 8.
- the antenna-side circuit device 5 contains a decoupling arrangement 23 which is connected to its output 7 and which receives, recognizes the pulse telegrams and converts them into control commands at its outputs 24 to 27. These control commands arrive at the control inputs 15, 16 and 18, 19 of the polarization switch 14 and the antenna transmission 17 and trigger the antenna-side settings associated with the channel set on the channel selection device.
- the pulse telegrams are so short that the interruption of normal image and / or sound transmission, which they cause on the antenna line, is hardly noticed by the user of the receiving device.
Landscapes
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Radio Relay Systems (AREA)
Abstract
Description
Die Erfindung betrifft eine Empfangseinrichtung der im Oberbegriff des Anspruches 1 angegebenen Art.The invention relates to a receiving device of the type specified in the preamble of claim 1.
Mit einer derartigen Empfangseinrichtung können Rundfunk- und Fernsehprogramme empfangen werden, die von einem ortsfesten Rundfunksatelliten abgestrahlt werden. Die Empfangsantenne ist hierzu auf den Satelliten ausgerichtet. Einem Rundfunksatelliten ist ein bestimmtes Versorgungsgebiet zugewiesen. Insbesondere in Randgebieten derartiger Versorgungsgebiete überschneiden sich mehrere Versorgungsgebiete, so daß dort von einer eingangs angegebenen Empfangseinrichtung auch Sendungen eines oder mehrerer anderer Satelliten empfangen werden können. Diese Satelliten können außer anderen Übertragungskanälen auch andere Orbitstellungen und eine andere Polarisation der abgestrahlten Wellen zur Übertragung ihrer Programme aufweisen. Will ein Benutzer einer eingangs angegebenen Empfangseinrichtung in einem Gebiet, das auch im Versorgungsbereich anderer Satelliten mit anderer Polarisation und/ oder Orbitstellung liegt das Programm dieser Satelliten empfangen, ist es erforderlich, daß die Polarisation und/oder die Einstellung der Empfangsantenne umschaltbar ist.With such a receiving device, radio and television programs can be received, which are emitted by a fixed radio satellite. For this purpose, the receiving antenna is aimed at the satellite. A specific coverage area is assigned to a broadcast satellite. In particular in peripheral areas of such coverage areas, several coverage areas overlap, so that broadcasts of one or more other satellites can also be received there by a receiving device specified at the beginning. In addition to other transmission channels, these satellites can also have other orbit positions and a different polarization of the emitted waves for the transmission of their programs. If a user of a receiving device specified at the outset wants to receive the program of these satellites in an area which is also in the coverage area of other satellites with a different polarization and / or orbit position, it is necessary that the polarization and / or the setting of the receiving antenna be switchable.
Eine eingangs angegebene Empfangseinrichtung ist beispielsweise aus der Druckschrift "Die Brücke zum Kunden" Nr. 88, Ausgabe 2/1981 der Fa. Hirschmann, Seite 3 bis 9 bekannt. Bei dieser bekannten Empfangseinrichtung ist an die Parabolantenne eine mit Außenbaugruppe bezeichnete antennenseitige Schaltungseinrichtung angeschlossen, die in einer Ausbaustufe auf den Empfang linksdrehender oder rechtsdrehender zirkularpolarisierter Wellen umschaltbar ist. Die über eine koaxiale Antennenleitung an die antennenseitige Schaltungseinrichtung der bekannten Empfangseinrichtung angeschlossene Empfängereinrichtung besteht aus einer Innenbaugruppe für Einzelanlagen mit einem durchstimmbaren Frequenzumsetzer und mit einem Frequenzdemodulator und aus einem Fernsehempfangsgerät. Am Tuner des Frequenzumsetzers ist der gewünschte Empfangskanal des Satellitenrundfunks einstellbar.A receiving device specified at the outset is known, for example, from the publication "Die Brücke zum Kunden" No. 88, edition 2/1981 from Hirschmann, pages 3 to 9. In this known receiving device, an antenna-side circuit device, which is referred to as an external module, is connected to the parabolic antenna and can be switched over in an expansion stage to the reception of left-handed or right-handed circularly polarized waves. The receiver device connected to the antenna-side circuit device of the known receiving device via a coaxial antenna line consists of an internal assembly for individual systems with a tunable frequency converter and with a frequency demodulator and a television receiver. The desired reception channel for satellite broadcasting can be set on the tuner of the frequency converter.
Aus der Zeitschrift "Neues von Rohde & Schwarz" Nr. 74, Juli 1976, Seite 15 bis 17 sind Antennen zum Empfang rechts- oder linksdrehender zirkularpolarisierter Wellen bekannt, die je nach Drehsinn der Wellen zwei Antennenhälften mittels einer Relaiseinheit parallel oder antiparallel schalten. Ein vieladriges Steuerkabel verbindet die Relaiseinheit der Antenne mit einem Bediengerät.From the magazine "Neues von Rohde & Schwarz" No. 74, July 1976,
Der Erfindung liegt demgegenüber die Aufgabe zugrunde, bei einer Empfangseinrichtung der eingangs angegebenen Art die Steuerbefehle für Umschaltungen in der antennenseitigen Schaltungseinrichtung oder an der Antenne ohne zusätzliche Steuerleitungen von der Empfängereinrichtung an die antennenseitige Schaltungseinrichtung zu übertragen.The invention is based on the object of transmitting the control commands for switching in the antenna-side circuit device or on the antenna without additional control lines from the receiver device to the antenna-side circuit device in a receiving device of the type specified.
Die Aufgabe wird nach der Erfindung durch die kennzeichnenden Merkmale des Patentanspruches 1 in vorteilhafter Weise gelöst. Mit der Erfindung ist insbesondere der Vorteil verbunden, daß neben der Antennenleitung keine weiteren Leitungen, insbesondere Steuerleitungen zwischen der antennenseitigen Schaltungseinrichtung und der Empfängereinrichtung verlegt werden müssen. Dadurch werden insbesondere bei einer Gebäudeinstallation zusätzliche Installationsarbeiten eingespart und zusätzliche Störquellen für die Empfangseinrichtung vermieden.The object is achieved according to the invention by the characterizing features of claim 1 in an advantageous manner. The invention has the particular advantage that in addition to the antenna line, no further lines, in particular control lines, have to be laid between the antenna-side circuit device and the receiver device. This saves additional installation work, particularly in the case of a building installation, and avoids additional sources of interference for the receiving device.
Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.Advantageous embodiments of the invention are specified in the subclaims.
Die Erfindung wird nachfolgend anhand eines vorteilhaften Ausführungsbeispiels, das in der Zeichnung schematisch in einem Blockschaltbild dargestellt ist, näher erläutert.The invention is explained in more detail below on the basis of an advantageous exemplary embodiment, which is shown schematically in the drawing in a block diagram.
Die in der einzigen Figur der Zeichnung dargestellte Satellitenfunk-Empfangseinrichtung enthält eine Parabolantenne 1, die über zwei kurze Leitungen 2 und 3 an den Eingang eines Polarisationswandlers 4 einer antennenseitigen Schaltungseinrichtung 5 angeschlossen ist. Die antennenseitige Schaltungseinrichtung kann ein integraler Bestandteil der Parabolantenne sein oder ist - wie im dargestellten Ausführungsbeispiel - in unmittelbarer Nähe der Parabolantenne angeordnet und anthält im Anschluß an den Polarisationswandler einen Frequenzumsetzer 6, der die von der Parabolantenne empfangene Frequenz nach einer Signalverstärkung in eine auf einem Koaxialkabel übertragbare Frequenz im Frequenzbereich von 1 GHz umsetzt. Den Ausgang 7 der antennenseitigen Schaltungseinrichtung 5 verbindet eine koaxiale Antennenleitung 8 mit dem Eingang 9 einer Empfängereinrichtung 10, die im wesentlichen einen abstimmbaren Frequenzumsetzer 11, einen Frequenzdemodulator 12 und ein an den Ausgang des Frequenzdemodulators angeschlossenes Wiedergabegerät 13 für Bild- und/oder Tonwiedergabe enthält.The satellite radio receiving device shown in the single figure of the drawing contains a parabolic antenna 1, which is connected via two short lines 2 and 3 to the input of a polarization converter 4 of an antenna-
In dem dargestellten Ausführungsbeispiel ist die Parabolantenne 1 für den Empfang zirkular rechtsdrehender und zirkular linksdrehender Wellen ausgebildet, von denen die Signale ersterer Wellen über die Leitung 2 und die Signale letzterer Wellen über die Leitung 3 an den Eingang des Polarisationswandlers 4 gelangen. Der Polarisationswandler enthält eine Polarisationsweiche, die von einem Polarisationsschalter-14 entsprechend den Steuerbefehlen an seinen Steuereingängen 15 und 16 umgeschaltet wird und entweder den einen Antennenausgang über die Leitung 2 oder den anderen Antennenausgang über die Leitung 3 mit dem Eingang des Frequenzumsetzers 6 verbindet.In the exemplary embodiment shown, the parabolic antenna 1 is designed for the reception of circular right-handed and circular left-handed waves, of which the signals of the former waves reach the input of the polarization converter 4 via line 2 and the signals of the latter waves via line 3. The polarization converter contains a polarization switch which is switched by a polarization switch-14 in accordance with the control commands at its
Außerdem ist die Parabolantenne 1 in dem dargestellten Ausführungsbeispiel mittels eines Antennengetriebes 17 entsprechend den Steuerbefehlen an seinen Steuereingängen 18 und 19 auf zwei Empfangsstellungen einstellbar.In addition, the parabolic antenna 1 in the exemplary embodiment shown can be set to two reception positions by means of an
Die Empfangseinstellung der Parabolantenne 1 und der Schaltzustand der antennenseitigen Schaltungseinrichtung 5 ist abhängig vom Empfangskanal, der an einer Kanalwahlvorrichtung 2o des abstimmbaren Frequenzumsetzers 11 der Empfängereinrichtung 1o eingestellt ist. Dementsprechend erzeugt die Kanalwahlvorrichtung Steuerbefehle für die Einstellung der Parabolantenne und der antennenseitigen Schaltungseinrichtung. Diese Steuerbefehle werden von der Empfängereinrichtung 1o über die Antennenleitung 8 an die antennenseitige Schaltungseinrichtung 5 übertragen. Dazu ist an den Eingang 9 der Empfängereinrichtung eine Einkoppelanordnung 21 angeschlossen, die die über Steuerleitungen 22 von der Kanalwahlvorrichtung 2o erzeugten Steuerbefehle in ein kurzes Impulstelegramm umsetzt und dieses in die Antennenleitung 8 einkoppelt. Die antennenseitige Schaltungseinrichtung 5 enthält eine Auskoppelanordnung 23, die an deren Ausgang 7 angeschlossen ist und die die Impulstelegramme empfängt, erkennt und in Steuerbefehle an ihren Ausgängen 24 bis 27 umwandelt. Diese Steuerbefehle gelangen an die Steuereingänge 15, 16 und 18, 19 des Polarisationsschalters 14 und des Antennengetriebes 17 und lösen die zu dem an der Kanalwahlvorrichtung eingestellten Kanal zugehörigen antennenseitigen Einstellungen aus.The reception setting of the parabolic antenna 1 and the switching state of the antenna-
Die Impulstelegramme sind so kurz bemessen, daß die Unterbrechung der normalen Bild- und/oder Tonübertragung, die sie auf der Antennenleitung hervorrufen, vom Benutzer der Empfangseinrichtung nicht oder kaum bemerkt wird.The pulse telegrams are so short that the interruption of normal image and / or sound transmission, which they cause on the antenna line, is hardly noticed by the user of the receiving device.
Claims (4)
dadurch gekennzeichnet,
characterized,
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT82109906T ATE32153T1 (en) | 1981-10-29 | 1982-10-27 | RECEPTION EQUIPMENT FOR RECEIVING SATELLITE BROADCASTING. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3142892A DE3142892C2 (en) | 1981-10-29 | 1981-10-29 | Receiving device for receiving satellite broadcasting |
DE3142892 | 1981-10-29 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0078494A2 true EP0078494A2 (en) | 1983-05-11 |
EP0078494A3 EP0078494A3 (en) | 1984-04-11 |
EP0078494B1 EP0078494B1 (en) | 1988-01-20 |
Family
ID=6145107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82109906A Expired EP0078494B1 (en) | 1981-10-29 | 1982-10-27 | Receiving device for the reception of satellite transmissions |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0078494B1 (en) |
AT (1) | ATE32153T1 (en) |
DE (2) | DE3142892C2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2778293B2 (en) * | 1991-07-04 | 1998-07-23 | ソニー株式会社 | Satellite broadcast receiving system and switching distributor |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2861265A (en) * | 1953-06-12 | 1958-11-18 | Alliance Mfg Company Division | Rotator |
FR2427732A1 (en) * | 1978-05-31 | 1979-12-28 | Montorio Salvatore | REMOTE CONTROL DEVICE FOR THE ANGULAR POSITION OF AN ANTENNA ROTOR |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1238967B (en) * | 1965-10-22 | 1967-04-20 | Telefunken Patent | Power supply circuit for antenna amplifier |
DE2005674A1 (en) * | 1970-02-07 | 1971-08-12 | Rohde & Schwarz | Arrangement for transmitting a constant DC supply voltage and a control variable via a two-wire line to a remote electrical device |
-
1981
- 1981-10-29 DE DE3142892A patent/DE3142892C2/en not_active Expired
-
1982
- 1982-10-27 AT AT82109906T patent/ATE32153T1/en not_active IP Right Cessation
- 1982-10-27 EP EP82109906A patent/EP0078494B1/en not_active Expired
- 1982-10-27 DE DE8282109906T patent/DE3278027D1/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2861265A (en) * | 1953-06-12 | 1958-11-18 | Alliance Mfg Company Division | Rotator |
FR2427732A1 (en) * | 1978-05-31 | 1979-12-28 | Montorio Salvatore | REMOTE CONTROL DEVICE FOR THE ANGULAR POSITION OF AN ANTENNA ROTOR |
Non-Patent Citations (3)
Title |
---|
DIE BR]CKE ZUM KUNDEN, Nr. 88, Ausgabe 2, 1981, Seiten 3-9, Fa. Hirschmann, Esslingen, DE "Antennenanlagen für den Satelliten-Direktempfang von Hörfunk und Fernsehen" * |
ELEKTROTECHNIK, Band 57, Heft 7, 1. April 1975, Seiten 18-21, W}rzburg, DE W. TETTENBORN: "Fernwirktechnik" * |
NEUES VON ROHDE & SCHWARTZ, Nr. 74, Juli 1976, Seiten 15-17, M}nchen, DE M. SCHILLER: "Logarithmisch-periodische Antennenanlagen zum Empfang belebig polarisierter Wellen" * |
Also Published As
Publication number | Publication date |
---|---|
ATE32153T1 (en) | 1988-02-15 |
DE3278027D1 (en) | 1988-02-25 |
EP0078494B1 (en) | 1988-01-20 |
DE3142892A1 (en) | 1983-05-19 |
EP0078494A3 (en) | 1984-04-11 |
DE3142892C2 (en) | 1985-03-07 |
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