EP1645046A1 - Recepteur hybride a algorithme intelligent adaptatif - Google Patents

Recepteur hybride a algorithme intelligent adaptatif

Info

Publication number
EP1645046A1
EP1645046A1 EP04740830A EP04740830A EP1645046A1 EP 1645046 A1 EP1645046 A1 EP 1645046A1 EP 04740830 A EP04740830 A EP 04740830A EP 04740830 A EP04740830 A EP 04740830A EP 1645046 A1 EP1645046 A1 EP 1645046A1
Authority
EP
European Patent Office
Prior art keywords
signals
receiver
receiving device
service
receivers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP04740830A
Other languages
German (de)
English (en)
Inventor
Thomas Adam
Christian Schwarz
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.)
Hirschmann Car Communication GmbH
Original Assignee
Hirschmann Electronics GmbH and Co KG
Hirschmann Electronics 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 Hirschmann Electronics GmbH and Co KG, Hirschmann Electronics GmbH filed Critical Hirschmann Electronics GmbH and Co KG
Publication of EP1645046A1 publication Critical patent/EP1645046A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/26—Circuits for superheterodyne receivers
    • H04B1/28—Circuits for superheterodyne receivers the receiver comprising at least one semiconductor device having three or more electrodes

Definitions

  • the invention relates to a receiving device for mobile reception of high-frequency signals (RF signals) of various services according to the features of the preamble of claim 1.
  • RF signals high-frequency signals
  • signals from stationary transmitters or satellites are emitted in the high-frequency range, the signals in particular being radio and television signals.
  • These signals can be emitted in analog or digital form (modulated).
  • analog or digital form modulated.
  • these are known services such as AM-FM broadcasting, DAB (Digital Audio Broadcast), DVB (Digital Video Broadcast), DVB -T (Digital Video Broadcast Terrestrial), DVBS, Analog TV, DRM, ISDB-T (Japan) or ATSC (USA) or data services.
  • DAB Digital Audio Broadcast
  • DVB Digital Video Broadcast
  • DVB -T Digital Video Broadcast Terrestrial
  • DVBS Digital TV
  • DRM Digital Video Broadcast
  • ISDB-T Joint Digital Television
  • ATSC ATSC
  • receiving devices designed for the respective service to be received are always used.
  • a car radio is required to receive analog radio. If you want to be able to receive TV in the vehicle, an additional TV receiver is required.
  • Such a television receiver is described, for example, in DE 10027610 A1, with which, however, no radio reception is possible.
  • a method for mobile reception of television signals is known from DE 19929284 A1, the reception device described there being used for carrying it out of the method for television reception consists of a receiving unit, a synchronization unit and a signal processing unit.
  • the receiving unit there are five different antennas arranged at different points in the vehicle for receiving the same television program, which due to the terrain structure can reach the antennas through reflections on several propagation paths.
  • the tuners can either only be tuned to the same television channel or to different channels that transmit the same television program.
  • a receiving device for the mobile reception of high-frequency signals (RF signals) of various services is known as the generic state of the art, the receiving device having at least two receivers (which are designed for receiving only a single service) and an antenna being assigned to each receiver and each receiver further processes the received signals.
  • the receivers and possibly downstream signal processing devices are part of the receiving device and preferably integrated therein, the antennas, which are connected to an associated receiver, being arranged outside the receiving device.
  • the invention is therefore based on the object of providing a receiving device for mobile reception of high-frequency signals from various services, with which the disadvantages described at the outset are avoided.
  • each of the two or more than two receivers is designed to receive any service and the conversion of the RF signals, in particular into IF signals, takes place as a function of the received RF signals and as a function of the selected service.
  • Each individual receiver is thus designed as a universal receiver which can receive several or, in a particularly advantageous manner, all of the services emitted by a transmitter. This means that a receiver designed for this service no longer has to be present for each service that is to be received and selected by the user of the receiving device.
  • the receiver is tuned to the frequency range and the type of modulation of this selected service and, if necessary, the IF signals can also be formed depending on the service.
  • signals preferably IF signals
  • signals are present at the output of each receiver, which signals have been formed as a function of the selected service and can be fed to further processing, as is known, for example, from DE 199 29284 A1.
  • the services which differ from one another in particular in terms of the frequency range and the type of modulation, are preferably radio, television and data services in analog and digital form.
  • the use of the receiving device according to the invention is particularly advantageous and essential for these services mentioned, but other services (eg voice transmission) are also conceivable.
  • the term “receiving device” is understood to mean that the receiving device is connected to a plurality of antennas, which are arranged, for example, at different locations within the vehicle.
  • the individual receivers are then present within the receiving device as part of the entire receiving device or as a module in the receiving device, while the individual receivers are followed by individual or grouped signal processing devices or an entire signal processing device.
  • Means for detecting the signals at the output of the individual receivers are then correspondingly assigned to the respective signal processing devices or the only signal processing device.
  • the signal path from the antenna via the respective receiver to the associated signal processing device is also referred to as a “receive train”.
  • means are provided for detecting the selected service and for detecting the signals (output signals) of each receiver in such a way that, depending on the detection, a decision is made as to which at least one receiver for reception and which at least one other receiver for a search run after the selected service.
  • At least one receiver (but possibly also several receivers) is used for the current reception of the selected service.
  • at least one other receiver (or even several other receivers) can search for transmitters that offer the same service, but with better signal quality, especially if the location of the receiving device changes continuously (e.g. in a vehicle). As soon as a transmitter with a better signal level has been found, the receiver (or receivers) who have found the better transmitter can be used for the current reception.
  • means which activate or deactivate at least one receiver.
  • This makes it possible to provide a receiving device with a plurality of receivers, with different expansion stages being possible depending on the equipment variant of the receiving device (corresponding to a desired equipment variant of a vehicle). So it is conceivable that the receiving device according to the invention with the described universal receivers by appropriate deactivation, the z. B. can also be done by software, has only a single active receiver, while the existing other receivers are deactivated. With such a receiving device, which must also be connected to only one antenna for the active receiver, would be, for.
  • Broadcast reception is possible. If the configuration (for example programming or wiring) changed, z. B. analog and digital radio reception possible.
  • the configuration (such as wiring or by changing software within the receiving device) can thus be used to set the reception of any combination of services offered.
  • the figure shows a receiving device 1 which has at least two receivers 2. In the exemplary embodiment, five receivers 2 are shown.
  • An antenna 3 is assigned to each receiver 2, the type and installation location of the antennas 3 being different from one another or being able to be of the same type and depending on the application of the receiving device 1.
  • a preferred application of the receiving device 1 according to the invention can be seen in motor vehicles, in which case the antennas 3 are designed as rod antennas or integrated antennas (such as bumper antennas, antenna conductor structures on flat parts of the vehicle and the like).
  • the RF signals received via the antennas 3 are processed further by the respective receiver 2, in particular converted into IF signals.
  • Means 4 are also provided which are designed to record the selected service. These are, for example, controls of the receiving device 1, with which a user z.
  • a radio station or television channel can specify a desired radio station or television channel.
  • means 5 are still available which detect the signals from the receivers 2. This can be, for example, the signal level of the HF or IF signals.
  • the output signals of the receivers 2, the means 4 and 5 are fed to a signal processing device 6, which can be, for example, the synchronization unit and signal processing unit described in DE 19929 284 A1 (column 3, line 32 to column 4, line 51).
  • a signal processing device 6 can be, for example, the synchronization unit and signal processing unit described in DE 19929 284 A1 (column 3, line 32 to column 4, line 51).
  • the signal processing device 6 outputs a signal 7 by, for. B. reproduce the signals of a radio or television station in a suitable manner.
  • the signal processing device 6 has, in particular, a programmable memory in which an algorithm can be stored which, depending on the user requirements (can be entered by means 4), the reception paths built up in the system and the current reception conditions (detected by the means 5) dynamically determine the best and necessary system configuration and possibly a search and diversity configuration.
  • the means 5 are connected to the signal processing device 6 and can exchange the signals bidirectionally.
  • means 5.1 for recording the signals of a receiver 2 are integrated in the signal processing device 6.
  • means 5.2 can be present outside the signal processing device 6, so that the signals 5.2 of the receiver 2 are fed directly or via the signal processing device 6 to the means 5.2 (or also several, which are each assigned to an individual receiver 2).
  • the output signals of the means 5.2 are then fed back to the signal processing device 6 for further processing.
  • reception trains that are different from one another, partially different from one another, group-wise identical or completely identical can be implemented.
  • a variant of a reception train is the antenna 3 and its downstream receiver, the associated means 5 and the associated part of the signal processing device 6 also being included for the purpose of signal processing.
  • the receiving train is again the antenna 3 with the receiver 2 connected downstream, the means 5.1 for detecting the signals of the receiver 2 being integrated in the signal processing device 6.
  • Another variant of a reception train can be seen in the antenna 3 together with the associated receiver 2, the signals of the receiver 2 being fed to the signal processing device 6 and means 5.2 being provided outside the signal processing device 6, to which the output signals of the receiver 2 are fed and the signals on the output side make available for further processing in the signal processing device 6.
  • Receiver device Receiver antenna Acquisition of the selected service Acquisition of the signals Signal processing device Signal output

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un dispositif de réception (1) pour la réception mobile de signaux haute fréquence (signaux HF) de différents services. Ledit dispositif de réception (1) comprend au moins deux récepteurs (2) et une antenne (3) est associée à chaque récepteur (2). Chaque récepteur convertit les signaux reçus, notamment en signaux de fréquence intermédiaire (signaux FI), en vue de leur traitement ultérieur. Selon l'invention, il est prévu que chaque récepteur (2) soit conçu de manière à recevoir un quelconque service. La conversion des signaux HF, notamment en signaux FI, s'effectue en fonction des signaux HF reçus, ainsi qu'en fonction du service sélectionné.
EP04740830A 2003-07-15 2004-07-09 Recepteur hybride a algorithme intelligent adaptatif Ceased EP1645046A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003131915 DE10331915A1 (de) 2003-07-15 2003-07-15 Hybridempfänger mit adaptivem intelligentem Algorithmus
PCT/EP2004/007542 WO2005008907A1 (fr) 2003-07-15 2004-07-09 Recepteur hybride a algorithme intelligent adaptatif

Publications (1)

Publication Number Publication Date
EP1645046A1 true EP1645046A1 (fr) 2006-04-12

Family

ID=34041865

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04740830A Ceased EP1645046A1 (fr) 2003-07-15 2004-07-09 Recepteur hybride a algorithme intelligent adaptatif

Country Status (3)

Country Link
EP (1) EP1645046A1 (fr)
DE (1) DE10331915A1 (fr)
WO (1) WO2005008907A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013117574A1 (fr) 2012-02-07 2013-08-15 Hirschmann Car Communication Gmbh Unité de traitement du signal évolutive servant à l'individualisation optimisée de services radio dans des véhicules

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4157505A (en) 1977-06-13 1979-06-05 Regency Electronics Plural band scanning radio with direct switch of RF amplifying transistors
DE4019010A1 (de) * 1990-06-13 1992-01-02 Grundig Emv Funkgeraetekombination, insbesondere kombination von schnurlosem telefonapparat und funkrufempfaenger
WO1995028803A1 (fr) * 1994-04-13 1995-10-26 Mankovitz Roy J Appareil et procede d'acces a des informations sur des emissions
GB9908675D0 (en) 1999-04-15 1999-06-09 British Broadcasting Corp Diversity reception method and diversity receivers
DE19929284A1 (de) * 1999-06-25 2001-01-04 Hirschmann Richard Gmbh Co Verfahren zum mobilen Empfang von Rundfunksignalen und Schaltungsanordnung zur Durchführung des Verfahrens
DE10027610A1 (de) * 2000-06-06 2001-12-13 Fuba Automotive Gmbh Verfahren zum Diversityempfang von digitalen Fernsehsignalen
DE10206385A1 (de) * 2001-03-02 2002-09-12 Lindenmeier Heinz Diversity-Anlage zum Empfang digitaler terrestrischer und/oder Satellitenfunksignale für Fahrzeuge

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005008907A1 *

Also Published As

Publication number Publication date
DE10331915A1 (de) 2005-02-10
WO2005008907A1 (fr) 2005-01-27

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