EP0623896A2 - Carte à puce et dispositif de lecture d'une carte à puce et récepteur de radiodiffussion - Google Patents

Carte à puce et dispositif de lecture d'une carte à puce et récepteur de radiodiffussion Download PDF

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Publication number
EP0623896A2
EP0623896A2 EP94105920A EP94105920A EP0623896A2 EP 0623896 A2 EP0623896 A2 EP 0623896A2 EP 94105920 A EP94105920 A EP 94105920A EP 94105920 A EP94105920 A EP 94105920A EP 0623896 A2 EP0623896 A2 EP 0623896A2
Authority
EP
European Patent Office
Prior art keywords
chip card
data
memory
compressed
microcomputer
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
EP94105920A
Other languages
German (de)
English (en)
Other versions
EP0623896B1 (fr
EP0623896A3 (fr
Inventor
Stefan Dipl.-Ing. Goss
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0623896A2 publication Critical patent/EP0623896A2/fr
Publication of EP0623896A3 publication Critical patent/EP0623896A3/fr
Application granted granted Critical
Publication of EP0623896B1 publication Critical patent/EP0623896B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • H04H20/55—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for traffic information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H2201/00—Aspects of broadcast communication
    • H04H2201/10—Aspects of broadcast communication characterised by the type of broadcast system
    • H04H2201/13—Aspects of broadcast communication characterised by the type of broadcast system radio data system/radio broadcast data system [RDS/RBDS]
    • 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
    • H04H60/76—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet
    • H04H60/81—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself
    • H04H60/98—Physical distribution of media, e.g. postcards, CDs or DVDs

Definitions

  • Chip cards are already well known and are used in many applications. Due to the great use of chip cards, standards have been developed which define the dimensions of a chip card and mark the points at which the chip card is to be contacted in order to supply the chip card with voltage so that it can operate the memories and computers contained in the chip card. as well as exchange data.
  • ISO 7816 This standard also specifies how the microprocessor of a chip card should be addressed by the reader. For this purpose, a reset signal and clock signals are transmitted to the chip card after the chip card has been inserted into the reader.
  • the card responds to this with a so-called response to the reset, as prescribed in the standard. After the answer to the reset, data can be read from the chip card or, in turn, data can be written to the chip card. Because of The dimensions of the chip card, the bending stiffness required by the chip card and the areas provided for the chips limit the design of the data memory and the microprocessor. A limit will soon be reached, especially if a lot of data is to be put on the chip card. From DE-OS 41 12 828 a radio receiver has also become known, into which a chip card can be inserted, the chip card to be inserted containing a data memory and the data memory containing data relating to the vocabulary and the location code.
  • the chip card according to the invention with the characterizing features of the main claim has the advantage that the density of the stored information is increased for a given storage space.
  • the compressed storage of the data in the memory makes it possible to accommodate considerably more data in the memory, so that the application area of the chip card is expanded.
  • the radio receiver it becomes possible to store a large number of location codes, so that the use of a radio receiver can be expanded spatially with the same chip card without having to deviate from a standardized chip card.
  • the chip card contains the decoding tables and the microcomputer the Chip card is able to perform a decompression on the basis of the decoding table, the chip card according to the invention behaves exactly like a chip card known per se. Despite the increased storage options, this chip card can therefore be used like conventional, standardized chip cards.
  • the reading device has the advantage that, in the case of chip cards with a compressed data record, it can be selected whether the data should be transmitted to the reading device in compressed form. While all the usual cards can be easily read by the reader, the delivery of a predetermined data word to the chip card ensures that the chip card does not decode the chip, but rather transmits the information to the reader in compressed form. In particular at high data rates, this measure considerably shortens the reading time from the chip card, so that the user of a corresponding chip card in connection with a suitable reading device, the waiting time is considerably shortened, since it is possible to use much more powerful computers in the reading device, so that slow data transmission from the chip card to the reader can be avoided.
  • the reading device according to the invention therefore considerably shortens the data transmission, in particular also large amounts of data, from a chip card with compressed data to the reading device, thereby reducing the waiting time for the user.
  • a radio receiver In a radio receiver according to claim 6, there is the advantage that the evaluation of digital information is now considerably accelerated. If the radio receiver only has a commercially available data reader, the compressed data of the chip card are stored on the card in a conventional manner decompressed and then transmitted to the radio receiver. If, on the other hand, the radio receiver has a card reader which is also able to process compressed data, the compressed data will be transmitted to the radio receiver after delivery of a predetermined data word by the radio receiver, decompressed there and further processed. The evaluated information is therefore available much faster.
  • the decompression in the chip card can be prevented by the receipt of a certain data word, so that the compressed data can also be output in a manner which does not conform to the standards, so that the data flow is accelerated.
  • the chip card is used to store data for decoding coded traffic reports in the memory of the chip card. It is also advantageous to store data for voice reproduction of digital information in the memory of the chip card.
  • FIG. 1 shows a radio receiver for use with the chip card according to the invention
  • FIG. 2 shows the chip card according to the invention
  • FIG. 3 shows the mode of operation of the microprocessor of the reading device in a radio receiver
  • FIG. 4 shows the mode of operation of the microprocessor in the chip card.
  • FIG. 1 shows a radio receiver which has an antenna 1.
  • the signal picked up by the antenna 1 is fed to a tuner 2, which selects the high-frequency signals in a known manner and brings a desired radio transmitter to the operator of the radio receiver.
  • an RDS decoder 3 is provided, with which it is possible to decode digitally superimposed information on the radio program and to supply it to a microprocessor 4.
  • the microprocessor 4 receives from the decoder 3, which is designed, for example, as an RDS decoder, RDS information or digitized traffic reports in a shortened form, as is described in more detail, for example, in DE-OS 35 36 820.
  • the microprocessor calls up data via an input / output unit 7 via the connections 8, which make it possible to make the messages in short form understandable to the radio listener.
  • the microprocessor 4 works in this radio receiver on the one hand as a reader of the chip card and on the other hand as an evaluator of the messages delivered by the decoder 3 to the microprocessor.
  • decoding table 6 This decoding table 6 is only required if the microprocessor 4 is also to read compressed data.
  • the decoding table contains the Information on how the compressed data can be decompressed. If compressed data is therefore read in via the connections 8 and the input / output unit 14, it is possible to decompress this data using the decoding table 6.
  • the electronic components of the chip card are shown in FIG.
  • the chip card has a memory 11, in which data are stored in compressed form or can be read in.
  • the memory 11 is connected to a microcomputer 12 which can process the data in the memory 11 according to programs stored in the memory 11.
  • a decoding table 13 is connected to the microcomputer 12.
  • the decoding table 13 enables the microcomputer 12 to decompress the compressed data from the memory 11.
  • the output of the microcomputer leads to an input / output unit 14, which controls the data traffic between the microprocessor 12 and the connection contacts 15.
  • FIG. 3 shows the mode of operation of the microcomputer 4 insofar as it relates to the reading of the chip card according to FIG. 2.
  • the microcomputer 4 As soon as the microcomputer 4 is supplied with current, for example by switching on the receiver, it is continuously checked at point 20 whether the contacts of a chip card are attacking at the connections 8. This can be achieved, for example, by pulling one of the lines 8 to another impedance by inserting the card and contacting it. If the microcomputer determines at point 21 that a card has been inserted has been, the supply voltage of the card is supplied via one of the lines 8, 15. The computer in the card is activated by supplying the supply voltage to the card. In the next step, the microcomputer 4 specifies a clock signal at the point 22, so that the synchronism of the mode of operation between the microcomputer 4 and the microprocessor 12 is ensured.
  • the computer 4 gives the microprocessor 12 a reset pulse which causes the microprocessor 12 to reach a defined state.
  • the microcomputer 4 now waits until after the microprocessor 12 has been initialized, it receives a message that the microprocessor 12 is now ready for operation.
  • the microcomputer 4 now asks whether the inserted chip card is even suitable for the corresponding application.
  • the chip card should contain data that defines the location code or contains information in different languages. The microcomputer can determine this at point 24 by whether the data words transmitted by the chip card at least partially match the data words that are stored in the computer 4 for a special application. If, for example, the chip card is suitable for traffic messages, it issues code 100.
  • code 200 is issued, for example, and if a chip card is suitable for withdrawing cash from automated teller machines, code number 300 is issued.
  • the microcomputer 4 determines that the inserted chip card is not suitable for its application, the microcomputer 4 issues a corresponding message and ends the contact with the chip card by ejecting the chip card again or in some other way the owner of the chip card prompts you to remove the chip card from the device.
  • the computer determines that the chip card is suitable for its device, in the exemplary embodiment to evaluate traffic news, he jumps to position 25 and activates the desired application on the map.
  • the chip card is suitable for several applications, for example not only to transmit data relating to traffic messages, but also for other purposes, for example as a telephone card.
  • the microcomputer 4 now waits until the card has confirmed that the corresponding application is now activated, that is to say, for example, traffic information can be transmitted from the card to the microcomputer 4 in the form of data. With this, a connection to the chip card is now established in a conventional reading device, so that the radio receiver can cooperate with the inserted card at point 31.
  • the microcomputer 4 calls up the information stored under this number from the memory 11 via the microprocessor 12 of the chip card. Under the coding specified in DE-OS 35 36 820, the text "1 km of traffic congestion due to construction work on the overtaking lane" is then output from the memory 11 via the microcomputer 12. This text can now be represented graphically or, if information in synthetic language was stored in the memory 11, this information can also be reproduced in the loudspeaker of the radio receiver.
  • the connection to the point 27 is continued in the microcomputer 4.
  • the microcomputer 4 inquires at the point 27 by means of a data word from the microprocessor 12 whether or not it has data in compressed form.
  • the response of the microcomputer is now evaluated. If there is no answer, it is clear that this is a common one Chip card that does not contain compressed data or a transmission of compressed data is not provided. This is the case, for example, when it is to be expected that large amounts of the stored data will not have to be transferred. In this case, the process jumps to point 31, where data transmission can then be started.
  • the microcomputer 4 receives the answer from the microprocessor 12 that the data is stored in compressed form, the question is asked at point 29 whether it is possible to transmit the data in compressed form in order to then carry it out using the decoding table 6 in the microcomputer 4. If this question is answered with yes, the microcomputer 4 of the reading device is set at point 30 so that it can decompress the compressed data. Depending on whether or not the decoding table is contained in the reading device of the receiver according to FIG. 1, it is therefore possible to switch between normal data transmission or fast data transmission if the special type of chip card permits this. Either way, the microcomputer 4 of the reader at point 31 is ready to start communication with the chip card, as has already been described above. This entire process is of course only necessary once, namely after the chip card has been inserted.
  • the mode of operation of the microprocessor 12 of the chip card is shown in more detail in FIG. 4.
  • the microprocessor 12 and the other components of the card are supplied with the supply voltage of the reading device by the connection contacts 15.
  • the microprocessor 12 receives the clock signals from the computer 4 of the reading device and its reset pulse.
  • the program stored in the microprocessor 12 now begins with the initialization of the microprocessor 12 and, at the end of this initialization phase, transmits at point 41 the response of the reset via the connections 15 to the computer 4 of the Reader.
  • the microprocessor 12 now receives the query from the computer 4 of the reader as to whether, for example, traffic messages are stored on the chip card.
  • the chip card If the chip card is only suitable for telephone calls, it answers no at point 43 and ends the data transmission with the reader. However, if the chip card has data from traffic messages, it answers yes and transmits the corresponding status to the computer 4 at point 44. If there is no further reaction on the part of the reading device, the decoding table 13 is activated by the microprocessor 12. If data is now requested from the reading device 4, the compressed data 11, which are desired by the reading device 4, are fetched into the microprocessor 12 and decompressed there using the decoding table 13. The decompressed data are then transmitted via the input-output unit 14 to the connections 15 and thus reach the computer of the reading device 4.
  • the decoding table 13 is switched off and only the requested data is read out of the memory by means of the microprocessor 12 and transmitted via the data connections 15.
  • the procedure is as if no response was received from the computer.
  • the decoding table 13 is switched off at the point 47 and the microprocessor 12 retrieves the desired data from the memory and sends it to the reading computer 4 without decoding. The construction of the read / write process is hereby completed.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
EP94105920A 1993-05-04 1994-04-16 Carte à puce et dispositif de lecture d'une carte à puce Expired - Lifetime EP0623896B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4314614 1993-05-04
DE4314614A DE4314614C2 (de) 1993-05-04 1993-05-04 Chipkarte und Lesegerät für eine Chipkarte

Publications (3)

Publication Number Publication Date
EP0623896A2 true EP0623896A2 (fr) 1994-11-09
EP0623896A3 EP0623896A3 (fr) 1995-06-28
EP0623896B1 EP0623896B1 (fr) 2000-07-05

Family

ID=6487075

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EP94105920A Expired - Lifetime EP0623896B1 (fr) 1993-05-04 1994-04-16 Carte à puce et dispositif de lecture d'une carte à puce

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EP (1) EP0623896B1 (fr)
DE (2) DE4314614C2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0725505A1 (fr) * 1995-02-03 1996-08-07 Robert Bosch Gmbh Récepteur de radiodiffusion pour la réception la gestion et l'affichage d'informations routières codées numériques
EP0725502A3 (fr) * 1995-02-03 1997-01-15 Bosch Gmbh Robert Méthode pour le décodage et l'affichage des informations routières numériques radiodiffusées
EP0756257A1 (fr) * 1995-07-26 1997-01-29 Philips Patentverwaltung GmbH Récepteur radio RDS-TMC
EP0757454A1 (fr) * 1995-07-29 1997-02-05 Philips Patentverwaltung GmbH Récepteur de radiodiffusion avec réception des signaux RDS-TMC
GB2357667A (en) * 1999-12-23 2001-06-27 Motorola Ltd Storage of traffic broadcasts in an RDS receiver
EP0925698B2 (fr) † 1996-09-13 2013-10-16 Orange Carte a puce avec compression interne de donnees

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19542910B4 (de) * 1995-11-17 2005-01-05 Deutsche Telekom Ag Verfahren und Vorrichtung zum Schutz gespeicherter Daten
DE19939433A1 (de) * 1999-08-20 2001-02-22 Mannesmann Vdo Ag Autoradio mit abnehmbarer Bedieneinheit

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3536820A1 (de) * 1985-10-16 1987-04-16 Bosch Gmbh Robert Verkehrfunk-decoder
JPS6314294A (ja) * 1986-07-03 1988-01-21 Nec Corp アイシ−カ−ド
JPH01219981A (ja) * 1988-02-29 1989-09-01 Nec Corp Ｉｃカード
JP2718129B2 (ja) * 1989-01-09 1998-02-25 凸版印刷株式会社 Ｉｃカード
DE4112828C2 (de) * 1991-04-19 1999-01-28 Bosch Gmbh Robert Chipkarte für einen Rundfunkempfänger
DE4228692A1 (de) * 1992-08-28 1993-01-21 Siemens Ag Chipkarte fuer audio- und videoinformationen

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0725505A1 (fr) * 1995-02-03 1996-08-07 Robert Bosch Gmbh Récepteur de radiodiffusion pour la réception la gestion et l'affichage d'informations routières codées numériques
EP0725502A3 (fr) * 1995-02-03 1997-01-15 Bosch Gmbh Robert Méthode pour le décodage et l'affichage des informations routières numériques radiodiffusées
EP0756257A1 (fr) * 1995-07-26 1997-01-29 Philips Patentverwaltung GmbH Récepteur radio RDS-TMC
KR970009478A (ko) * 1995-07-26 1997-02-24 요트.게.아. 롤페즈 방송 수신기, 모듈 및 칩 카드
EP0757454A1 (fr) * 1995-07-29 1997-02-05 Philips Patentverwaltung GmbH Récepteur de radiodiffusion avec réception des signaux RDS-TMC
EP0925698B2 (fr) † 1996-09-13 2013-10-16 Orange Carte a puce avec compression interne de donnees
GB2357667A (en) * 1999-12-23 2001-06-27 Motorola Ltd Storage of traffic broadcasts in an RDS receiver

Also Published As

Publication number Publication date
DE4314614C2 (de) 1997-04-24
EP0623896B1 (fr) 2000-07-05
EP0623896A3 (fr) 1995-06-28
DE59409415D1 (de) 2000-08-10
DE4314614A1 (de) 1994-11-10

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