WO1988009588A1 - Systeme de transmission de donnees - Google Patents

Systeme de transmission de donnees Download PDF

Info

Publication number
WO1988009588A1
WO1988009588A1 PCT/EP1988/000449 EP8800449W WO8809588A1 WO 1988009588 A1 WO1988009588 A1 WO 1988009588A1 EP 8800449 W EP8800449 W EP 8800449W WO 8809588 A1 WO8809588 A1 WO 8809588A1
Authority
WO
WIPO (PCT)
Prior art keywords
receiving device
transmission system
data transmission
coincidence
address
Prior art date
Application number
PCT/EP1988/000449
Other languages
German (de)
English (en)
Inventor
Hans-Joachim Platte
Bernard Le Floch
Egon Meier-Engelen
Dirk Nederlof
Georg Plenge
Rudolph Vollmer
Original Assignee
Deutsche Thomson-Brandt 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 Deutsche Thomson-Brandt Gmbh filed Critical Deutsche Thomson-Brandt Gmbh
Publication of WO1988009588A1 publication Critical patent/WO1988009588A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
    • H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H2201/00—Aspects of broadcast communication
    • H04H2201/70—Aspects of broadcast communication characterised in that receivers can be addressed

Definitions

  • the invention relates to a data transmission system, in particular a digital radio or television broadcast transmission system, with receiving devices having individual addresses.
  • a data transmission system in particular a digital radio or television broadcast transmission system, with receiving devices having individual addresses.
  • Such data transmission systems in which each individual receiver has an individual address that is difficult or difficult to manipulate and in which transmission of addresses is possible in the transmission channel, are known as wired or wireless systems, e.g. in conventional wired telecommunication networks, radio telephones, or the like.
  • the invention has for its object to provide a data transmission system in which unauthorized operation of receiving devices is largely avoided.
  • the data transmission system according to the invention has the advantage that theft or unauthorized operation of receiving devices can be considered useless from the outset. Attempts at insurance fraud with reception devices - in particular car radios - which have been reported as stolen have appeared more frequently recently . which, however, had in no way been stolen, are useless in the data transmission system according to the invention in the same way as the theft of such devices themselves. In both cases, unauthorized use can be prevented with the receiving devices according to the invention.
  • the address of the receiving device in question is transmitted via an authorized point to a central control computer.
  • the latter adopts the address in a list of stolen receivers or offending radio fee payers.
  • This list - provided with appropriate error protection - is transmitted in a repeated repetition multiplexed with the actual digital useful broadcast signal.
  • the addresses of the registered receiving devices either remain in the - if applicable - list of the central computer either for a limited time (for example a few months or years) or until the device is found again or until the fee has been paid.
  • police stations, insurance agencies, inca-sostas for broadcasting fees, or the like can be provided as authorized bodies.
  • the transmitted addresses are continuously compared for the coincidence of a received address with the individual address of the receiving device.
  • the receiving device will only work undisturbed as long as it does not receive its own address. If, however, one's own address is recognized without a doubt in the address data stream, the receiving device will trigger a predetermined reaction, which preferably results in an irreversible malfunction of the receiving device or, in the case of a vehicle receiving device, in a malfunction of the vehicle.
  • the malfunction of the receiver can be caused, for example, by self-destruction of an integrated circuit with a central function, which is not freely traded and therefore cannot be replaced by manipulating hobbyists.
  • a malfunction of a vehicle for example, a starting block or ignition malfunction of the engine can be triggered, although preference is given to measures which do not impair the road safety of the vehicle.
  • the address transmission can also be used for the sustainable reminder of late payers of broadcasting fees.
  • the address of the corresponding receiving devices also remains stored in the central computer until the corresponding fee has been paid.
  • the transmission of the address cannot cause any damage to the receiving device.
  • a "remote self-disturbance" - as in the case of theft - appears to be quite justified and effective as a countermeasure.
  • a length of approximately 32 bits is to be provided for the addresses. Even if the considerable number of 600,000 devices reported as stolen should then be reached, with "moderate" error protection and an address data rate of approx. 5 kbit / s, the complete address list would be transmitted within 1.5 hours each. Since the list is repeated continuously, a thief would have enjoyed the undisturbed operation of a device "acquired" by theft for a maximum of 1.5 hours after the central computer had received the theft report.
  • Fig. 1 shows a block diagram for a sound receiving device with anti-theft device
  • FIG. 2 shows the arrangement of address data for an anti-theft device within a data stream for a digital audio broadcast receiver.
  • the signals received by the antenna 1 come to a receiving part 2, in which the signals are selected and then demodulated.
  • the demodulated useful and address data shown in FIG. 2, are supplied to the circuit 3 at its input E.
  • This circuit contains the own stored address in block 9, the address decoding (test circuit) in block 8 and block 10 and a destructible fuse 6 in the user data stream.
  • the circuit 3 is designed as an integrated one-chip circuit.
  • the address of the memory located in block 3, which can be in the form of a PROM memory is to be assigned either by the seller or by the owner of the device to an owner-specific identifier, e.g. B. passport number, programmed. It is also possible for the manufacturer to specify a fixed address that is regularly broadcast by the broadcaster. The buyer would then be forced to reprogram the device to its individual address before commissioning in order to avoid self-destruction.
  • the address data are selected in demultiplexing circuit 4, which are emitted in the transmitter for the detection of stolen receivers.
  • This data is fed via an error correction circuit 8 to an input of the comparison circuit 10, the second input of which is connected to the PROM memory 9, in which the customer-specific address is stored. If a received address matches the address stored in the memory 9, a signal is output in the comparator 10 via the line F which triggers the destruction of a semiconductor element located in the fuse block 6. This semiconductor element is in the Data stream of the useful signal. If it is destroyed, no signals are passed on to the sound processor 7 connected to block 6, so that the receiver is therefore unusable. It is also possible to use the signal on line F to connect other elements which trigger alarm signals.
  • the useful signal which is coupled out at a second output of the demultiplexing circuit 4, there is a further demultiplexing circuit 5, in which additional signals Z such as e.g. Traffic information etc. are selected from the data stream.
  • additional signals Z such as e.g. Traffic information etc. are selected from the data stream.
  • the useful signal itself is fed to the sound processor module 7, which is also contained in circuit 3 and to whose outputs AI, A2, D / A converters 11 and 12 are connected for stereophonic sound reproduction.
  • FIG. 2 shows the arrangement of address data for an anti-theft device within a data stream for a digital audio broadcasting receiver.
  • the data stream is divided into frames f.
  • a possible arrangement of the synchronous S, the address data A, the error protection data E and the useful data N is shown within a frame.
  • the address code for the detection of stolen devices can e.g. 32 bit and the error protection code e.g. 8 bits.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

Système de transmission de données, notamment système de radiodiffusion sonore ou de radiotélédiffusion, pour récepteurs présentant des adresses individuelles. Les données d'adresses sont transmissibles sous forme de compléments de programme. Le récepteur correspondant comporte un circuit d'essai (8, 10) qui teste en continu les données d'adresses reçues en vue de déterminer leur coincidence avec l'adresse individuelle du récepteur stockée dans une mémoire (9) (coïncidence), et en cas de coïncidence, ledit récepteur ou un dispositif qui lui est adjoint est automatiquement brouillé en continu. On évite ainsi en grande partie le fonctionnement non autorisé du récepteur, par exemple en cas de vol ou de non-règlement des redevances sur la radiodiffusion.
PCT/EP1988/000449 1987-05-21 1988-05-20 Systeme de transmission de donnees WO1988009588A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3717022.8 1987-05-21
DE19873717022 DE3717022A1 (de) 1987-05-21 1987-05-21 Datenuebertragungssystem

Publications (1)

Publication Number Publication Date
WO1988009588A1 true WO1988009588A1 (fr) 1988-12-01

Family

ID=6328021

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1988/000449 WO1988009588A1 (fr) 1987-05-21 1988-05-20 Systeme de transmission de donnees

Country Status (4)

Country Link
EP (1) EP0291995A1 (fr)
DE (1) DE3717022A1 (fr)
PT (1) PT87521A (fr)
WO (1) WO1988009588A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0461436A1 (fr) * 1990-06-13 1991-12-18 Robert Bosch Gmbh Procédé de transmission sélective d'appels et récepteur d'appels pour la mise en oeuvre de ce procédé
DE4239271A1 (de) * 1991-11-21 1993-10-14 Thomson Brandt Gmbh Diebstahlabsicherung mit Sende-Empfangs-Prinzip
US7215237B1 (en) 1998-02-20 2007-05-08 Ernst Messerschmid Security device for the global protection with objects with electronic components

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3901790A1 (de) * 1989-01-21 1990-07-26 Gfk Gmbh Verfahren zum ferngesteuerten ersetzen eines bestimmten programmteils eines fernsehprogramms durch einen gesondert gesendeten programmteil fuer bestimmte, ausgewaehlte empfaenger, haushalts-endgeraet zur durchfuehrung des verfahrens und verfahren zum betrieb eines haushalt-endgeraets
DE3903468A1 (de) * 1989-02-06 1990-08-09 Blaupunkt Werke Gmbh Eingabe zur wiedergabe von warnmeldungen
FR2674352B1 (fr) 1991-03-19 1995-06-23 Telediffusion Fse Systeme de mise hors service controlee et de localisation d'un equipement meuble ou mobile.
DE4201031C2 (de) * 1992-01-14 1994-09-01 Ludwig J Prof Dr Issing Programmauswahlsystem zur automatisierten Vorauswahl von Fernseh- bzw. Radiosendungen nach den individuellen Interessen der Teilnehmer
DE4412023B4 (de) * 1994-04-07 2005-03-10 Deutsche Telekom Ag Verfahren und Anordnung zum Empfang von codiert übertragenen Informationen
DE19508610A1 (de) * 1995-03-10 1996-09-12 Tech Projekte In Der Informati System zur Rundfunkübertragung von Information zusammen mit Vorschriften zu ihrer Dekodierung und Darstellung
DE19511298B4 (de) * 1995-03-28 2005-08-18 Deutsche Telekom Ag Verfahren zur Erteilung und zum Entzug der Berechtigung zum Empfang von Rundfunksendungen und Decoder
GB0318526D0 (en) * 2003-08-07 2003-09-10 Radioscape Ltd Securing digital radios and vehicles against theft

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3668526A (en) * 1969-09-12 1972-06-06 Jerome S Raskin Communication system having means for causing a distress signal
EP0135783A2 (fr) * 1983-08-18 1985-04-03 Nec Corporation Dispositif de radio-communication désactivé par réception d'un signal prédéterminé
GB2154347A (en) * 1984-02-14 1985-09-04 Nec Corp Paging communication system

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DE2926013C2 (de) * 1979-06-27 1983-01-05 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur Ausgabe von binärkodierten Nachrichten an einen empfangsbefugten Personenkreis
DE3036804A1 (de) * 1980-09-30 1982-05-13 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Sicherheitssystem zur verhinderung unerlaubter manipulationen bei der elektronischen textuebertragung in nachrichtennetzen
JPS5797241A (en) * 1980-12-09 1982-06-16 Nec Corp Power supply connecting system for car telephone set having auxiliary callout function
JPS5977725A (ja) * 1982-10-27 1984-05-04 Nippon Telegr & Teleph Corp <Ntt> 移動通信用可搬型電話機
JPS60104434A (ja) * 1983-11-08 1985-06-08 Arupain Kk 車載用音響機器の盗難防止装置
DE3509562A1 (de) * 1985-03-16 1986-09-18 Blaupunkt-Werke Gmbh, 3200 Hildesheim System zur sicherung von elektronischen geraeten, insbesondere autoradios gegen diebstahl
EP0203424B1 (fr) * 1985-05-28 1991-11-13 Siemens Aktiengesellschaft Procédé et circuit pour la vérification de l'autorisation d'accès à un système de traitement de signaux
DE3520395C1 (de) * 1985-06-07 1990-03-29 Audi AG, 8070 Ingolstadt Diebstahlsicherung für ein Autoradio

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3668526A (en) * 1969-09-12 1972-06-06 Jerome S Raskin Communication system having means for causing a distress signal
EP0135783A2 (fr) * 1983-08-18 1985-04-03 Nec Corporation Dispositif de radio-communication désactivé par réception d'un signal prédéterminé
GB2154347A (en) * 1984-02-14 1985-09-04 Nec Corp Paging communication system

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Patent Abstracts of Japan , Band 6, Nr. 182, (E-131) (1060), 18 September 1982 & JP-A-57 97 241 (NIPPON DENKI K.K.) *
Patent Abstracts of Japan, Band 8, Nr. 185, (E-262) (1622), 24 August 1984 & JP-A-59 77 725 (NIPPON DENSHIN DENWA KOSHA) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0461436A1 (fr) * 1990-06-13 1991-12-18 Robert Bosch Gmbh Procédé de transmission sélective d'appels et récepteur d'appels pour la mise en oeuvre de ce procédé
DE4239271A1 (de) * 1991-11-21 1993-10-14 Thomson Brandt Gmbh Diebstahlabsicherung mit Sende-Empfangs-Prinzip
US7215237B1 (en) 1998-02-20 2007-05-08 Ernst Messerschmid Security device for the global protection with objects with electronic components

Also Published As

Publication number Publication date
EP0291995A1 (fr) 1988-11-23
PT87521A (pt) 1989-05-31
DE3717022A1 (de) 1988-12-15

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