EP0078494A2 - Dispositif de réception pour la réception des émissions d'un satellite - Google Patents

Dispositif de réception pour la réception des émissions d'un satellite Download PDF

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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
Application number
EP82109906A
Other languages
German (de)
English (en)
Other versions
EP0078494B1 (fr
EP0078494A3 (en
Inventor
Charles Schepers
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.)
Nokia Deutschland GmbH
Original Assignee
Alcatel SEL AG
Standard Elektrik Lorenz AG
Alcatel NV
International Standard Electric Corp
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 Alcatel SEL AG, Standard Elektrik Lorenz AG, Alcatel NV, International Standard Electric Corp filed Critical Alcatel SEL AG
Priority to AT82109906T priority Critical patent/ATE32153T1/de
Publication of EP0078494A2 publication Critical patent/EP0078494A2/fr
Publication of EP0078494A3 publication Critical patent/EP0078494A3/de
Application granted granted Critical
Publication of EP0078494B1 publication Critical patent/EP0078494B1/fr
Expired legal-status Critical Current

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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)
EP82109906A 1981-10-29 1982-10-27 Dispositif de réception pour la réception des émissions d'un satellite Expired EP0078494B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82109906T ATE32153T1 (de) 1981-10-29 1982-10-27 Empfangseinrichtung zum empfang von satellitenrundfunk.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3142892 1981-10-29
DE3142892A DE3142892C2 (de) 1981-10-29 1981-10-29 Empfangseinrichtung zum Empfang von Satellitenrundfunk

Publications (3)

Publication Number Publication Date
EP0078494A2 true EP0078494A2 (fr) 1983-05-11
EP0078494A3 EP0078494A3 (en) 1984-04-11
EP0078494B1 EP0078494B1 (fr) 1988-01-20

Family

ID=6145107

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82109906A Expired EP0078494B1 (fr) 1981-10-29 1982-10-27 Dispositif de réception pour la réception des émissions d'un satellite

Country Status (3)

Country Link
EP (1) EP0078494B1 (fr)
AT (1) ATE32153T1 (fr)
DE (2) DE3142892C2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2778293B2 (ja) * 1991-07-04 1998-07-23 ソニー株式会社 衛星放送受信システム及び切換分配器

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2861265A (en) * 1953-06-12 1958-11-18 Alliance Mfg Company Division Rotator
FR2427732A1 (fr) * 1978-05-31 1979-12-28 Montorio Salvatore Dispositif de commande a distance de la position angulaire d'un rotor d'antenne

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1238967B (de) * 1965-10-22 1967-04-20 Telefunken Patent Spannungsversorgungsschaltung fuer Antennenverstaerker
DE2005674A1 (de) * 1970-02-07 1971-08-12 Rohde & Schwarz Anordnung zum Übertragen einer konstanten Speisegleichspannung und einer Steuergrosse über eine Zweidrahtleitung zu einem abge setzten elektrischen Gerat

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2861265A (en) * 1953-06-12 1958-11-18 Alliance Mfg Company Division Rotator
FR2427732A1 (fr) * 1978-05-31 1979-12-28 Montorio Salvatore Dispositif de commande a distance de la position angulaire d'un rotor d'antenne

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
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
EP0078494B1 (fr) 1988-01-20
ATE32153T1 (de) 1988-02-15
DE3142892C2 (de) 1985-03-07
DE3278027D1 (en) 1988-02-25
EP0078494A3 (en) 1984-04-11
DE3142892A1 (de) 1983-05-19

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