EP0500693A1 - Verfahren und vorrichtung zur aktivierung einer chipkarte. - Google Patents
Verfahren und vorrichtung zur aktivierung einer chipkarte.Info
- Publication number
- EP0500693A1 EP0500693A1 EP90916993A EP90916993A EP0500693A1 EP 0500693 A1 EP0500693 A1 EP 0500693A1 EP 90916993 A EP90916993 A EP 90916993A EP 90916993 A EP90916993 A EP 90916993A EP 0500693 A1 EP0500693 A1 EP 0500693A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- voltage
- control unit
- chip card
- signal
- value
- 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
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/468—Regulating voltage or current wherein the variable actually regulated by the final control device is dc characterised by reference voltage circuitry, e.g. soft start, remote shutdown
Definitions
- the invention relates to a method for activating a chip card according to the preamble of the main claim and a preferred device suitable for carrying out the method according to the invention according to the preamble of the first subject claim.
- a card with an integrated circuit with contacts or "chip card” usually has a rectangular shape and has an integrated circuit with contacts on the surface at a fixed location. Such a device has a variety of uses: check or credit card, telephone, pay TV etc.
- Such a card enables its owner to access a service or to operate an apparatus.
- it is considered to use it for a pay-TV system in which the encrypted television signal is received by a decryption device, which restores a decrypted signal when this device is connected to a chip card, the approval information ⁇ nen contains.
- the device for receiving and decoding the signals is intended for the exchange of information with the circuit of the card to check whether the holder is authorized to receive the broadcast. This information to receive the program.
- This information exchange or dialogue takes place via an interface circuit.
- chip cards There are different types of chip cards and each type corresponds to a programming voltage.
- the invention has for its object to provide a reliable method for activating a chip card and an easy to implement device that can be used as part of an apparatus, the full functionality of which is only guaranteed in connection with an active chip card.
- a control unit of the apparatus receives a signal from a control unit of a chip card connected to the apparatus which determines the value of an activation voltage. On the basis of the signal mentioned, the control unit of the apparatus controls further stages which deliver the required activation voltage to the chip card.
- the activation voltage with the desired voltage value enables the chip card to be used for further steps, for example for decoding information.
- An embodiment of the invention defines the time sequence for the application of supply voltages to the control units mentioned.
- control unit present in the apparatus is supplied with a necessary first supply voltage immediately after the apparatus is switched on. Will the existence If a chip card is recognized, its control system is supplied with a second supply voltage which is delayed compared to the first supply voltage.
- a preferred embodiment of the device according to the invention contains a DC voltage generator which generates the required activation voltage for the chip card in a simple manner.
- This is characterized in that it contains a generator for a regulated voltage, followed by an ohmic voltage divider which has resistors connected in parallel in a branch, at least one of which is connected in series with a switch which depending on the DC voltage to be supplied.
- the voltage provided by the voltage divider can be used directly to activate the card.
- the output voltage of the voltage divider represents a setpoint voltage which controls a control circuit, for example with a ballast transistor, which supplies the programming with sufficient current.
- FIG. 1 shows a preferred exemplary embodiment of the device according to the invention
- FIG. 2 shows the flow diagram of a preferred one
- Embodiment of the inventive method and Fig. 3 shows a preferred embodiment of a k
- first DC voltage regulator 1 shows a first DC voltage regulator 1, to which a first unregulated DC voltage Vpl is supplied and to which a first regulated DC voltage VMB is assigned to a first electronic control unit 2 (Electronic Control Unit ECU1), which has an apparatus, for example a decryption device is, feeds.
- ECU1 Electronic Control Unit
- a second DC voltage regulator 3 is provided, to which a second unregulated DC voltage Vp2 is supplied and which outputs a second regulated DC voltage Vcc to a second electronic control unit 4 (ECU2) which is assigned to a chip card (not shown).
- This chip card must be brought into direct or indirect connection with the apparatus in order to carry out decryption processes.
- a DC voltage generator 5 receives a third unregulated DC voltage Vp3 and outputs a third regulated DC voltage Vpp, also called program DC voltage below, to the second electronic control unit 4.
- the first electronic control unit 2 contains, on the one hand, a signal CP, which assumes the value 1 when the connection between the chip card and the apparatus is present, and on the other hand an activation signal from the second electronic control unit 4.
- the first electronic control unit 2 outputs a first control signal CMDVcc to the second voltage regulator 3, a second and a third control signal CMDVpp or CMMDVppn to the direct voltage generator 5 and a further signal to the second electronic control unit 4.
- FIG. 1 The function of the preferred exemplary embodiment according to FIG. 1 of the device according to the invention will now be explained with the aid of the method according to the invention, the flow diagram of which is shown in FIG. 2.
- the method starts with step 100, in which the apparatus is switched on and the unregulated voltages Vp, corresponding to Vpl, Vp2, Vp3, are present.
- the first voltage regulator 1 generates the regulated DC voltage VMB in step 101, whereby the first electronic control unit 2 is switched on.
- step 102 follows in which it is checked whether an encrypted broadcast is received.
- step 106 the second electronic control unit 4 transmits the activation signal to the first electronic control unit 2, which contains information about the value Vn of the programming DC voltage Vpp required for activation.
- the first electronic control unit 2 sends the control signal CMDVppn to the DC voltage generator 5 in step 107, which then switches on the DC voltage Vpp with the desired value Vn, which is fed to the second electronic control unit (step 108).
- step 109 This is followed by the end of the method in step 109, which also follows directly if it is determined in step 102 or step 103 that no encrypted mail suitable for the system or no connection between the chip card and the apparatus (CP not equal 1) is present.
- the unregulated direct voltages Vpl, Vp2, Vp3 can be identical, so that the inputs of the voltage regulators 1, 3 and the direct voltage generator 5 are connected to one another. Furthermore, it is conceivable that the voltage regulator 3 is such that the amplitude of the voltage Vcc increases in time.
- FIG. 3 A preferred embodiment of the DC voltage generator 5, which the activation DC voltage Vpp, in the following 1 which also gives the programming voltage, with the desired values, is shown in FIG. 3.
- the DC voltage generator shown in the figure consists of a DC voltage generator (not shown), which represents the main supply and supplies the unregulated DC voltage Vp3 of 30 volts via a connection 11. This is connected to the output connection 12 via an on / off switch 13 which can be controlled by the control signal CMDVpp, a current limiter 14 and a ballast transistor 15 of NPN type, the conductivity of which is controlled in such a way that a programming DC voltage Vpp appears at the output 12, which it enables information to be permanently written into a chip card (not shown).
- the programming voltage Vpp can take one of the following values: 5 volts, 12.5 volts, 15 volts and 21 volts. The accuracy of this programming voltage is ⁇ 2.5%.
- the ballast transistor 15 serves to set the DC voltage at the output 12 to the selected value and to regulate this output voltage.
- the base of this transistor 15 is connected to the output of a comparator 16, at the one input 16 of which a voltage proportional to the output voltage Vpp is present via a voltage divider with the resistors 17 and 18 of the values 407 and 196 kOhm, respectively.
- the setpoint of the control which corresponds to the value desired at the output 12, is applied to a second input 16 2 of the comparator 16. ?
- a regulated DC voltage source 19 is provided for generating the setpoint value and supplies a DC voltage signal of the value 12 volts.
- the accuracy of this value is ⁇ 5%.
- This voltage is given through a resistor 20 of the value of 470 Ohm to the terminals of a Zener diode 21 go ⁇ that a DC voltage of 6.8 volts with a 'Ge accuracy of ⁇ 2% supplies.
- a voltage divider 22 with an output 23 is provided, which is connected to the input 16 2 of the comparator 16.
- the voltage divider 22 contains a control resistor 24 between the connection 23 and ground and a resistor 26 of the value 6.8 kOhm between the connection 23 and a conductor 25 connected to the cathode of the zener diode 21.
- resistors 27 and 28 are turned on in parallel with resistor 26. Each of these resistors is connected in series with a switch 27 or 28 controlled by the control signal (MDVppn).
- the resistors 27 and 28 have the values 1.82 kOhm and 1.37 Ohm, respectively.
- the accuracy of the value of these resistors is ⁇ 1%.
- the resistance between the connection 23 and the conductor 25 has a different value.
- Three of the values are available: the first when the two switches 27 and 28 are open, the second when the switch 27 is closed and the switch 28 is open, and the third when the switch 27i is opened and the switch 28l g r is eschlos- sen.
- the switches 27 and 28 are controlled by the interface switch using means (not shown) which receive the information from the chip card about the voltage required for their programming. Each switch is controlled by an output of a micro actuator. It is conceivable to implement the switches 27, 28 in the form of semiconductor components, such as transistors, which are controlled accordingly.
- the comparator 16 supplies the base of the transistor 15 with an error signal which represents the difference between the actual value of the signal Vpp at the output 12 and the desired value which is present at the input 16-.
- the value of the signal of the output 12 depends on the conduction state of the ballast transistor 15.
- the ballast transistor 15 can be replaced by any other component whose conductivity can be controlled.
- the circuit just described enables the generation of three DC voltages with the desired accuracy ( ⁇ 2.5%) and has an extremely simple structure.
- the regulation of the value of the resistor 24 enables the advantageous range of the characteristic curve of the diode 21 to be used.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Credit Cards Or The Like (AREA)
- Power Sources (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Polyesters Or Polycarbonates (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
- Direct Current Feeding And Distribution (AREA)
- Dc-Dc Converters (AREA)
- Selective Calling Equipment (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8914567 | 1989-11-07 | ||
FR8914567A FR2654232A1 (fr) | 1989-11-07 | 1989-11-07 | Generateur de tensions continues pour l'alimentation d'une carte a circuit integre. |
PCT/EP1990/001845 WO1991007056A1 (de) | 1989-11-07 | 1990-11-03 | Verfahren und vorrichtung zur aktivierung einer chipkarte |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0500693A1 true EP0500693A1 (de) | 1992-09-02 |
EP0500693B1 EP0500693B1 (de) | 1996-08-14 |
Family
ID=9387145
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90916993A Expired - Lifetime EP0500693B1 (de) | 1989-11-07 | 1990-11-03 | Verfahren und vorrichtung zur aktivierung einer chipkarte |
Country Status (15)
Country | Link |
---|---|
US (1) | US5265161A (de) |
EP (1) | EP0500693B1 (de) |
JP (1) | JP3194946B2 (de) |
KR (1) | KR100212381B1 (de) |
AT (1) | ATE141463T1 (de) |
AU (1) | AU639279B2 (de) |
DE (1) | DE59010455D1 (de) |
ES (1) | ES2091829T3 (de) |
FI (1) | FI922048A (de) |
FR (1) | FR2654232A1 (de) |
HK (1) | HK1000753A1 (de) |
HU (1) | HUT63288A (de) |
NO (1) | NO180179C (de) |
SG (1) | SG52445A1 (de) |
WO (1) | WO1991007056A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5768147A (en) * | 1995-03-23 | 1998-06-16 | Intel Corporation | Method and apparatus for determining the voltage requirements of a removable system resource |
CN1179297C (zh) * | 1998-07-29 | 2004-12-08 | 因芬尼昂技术股份公司 | 具有功率输入调节的数据载体 |
US6753758B2 (en) | 2001-01-03 | 2004-06-22 | Gerald Adolph Colman | System and method for switching voltage |
EP1447809A1 (de) * | 2003-02-14 | 2004-08-18 | SCHLUMBERGER Systèmes | Karte mit mehreren integrierten Schaltungen |
US7968018B2 (en) * | 2007-04-18 | 2011-06-28 | Coopervision International Holding Company, Lp | Use of surfactants in extraction procedures for silicone hydrogel ophthalmic lenses |
KR102170184B1 (ko) * | 2019-03-21 | 2020-10-26 | 진혜성 | 팔토시 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3890461A (en) * | 1973-03-27 | 1975-06-17 | Theatrevision Inc | Ticket operated subscription television receiver |
US4001550A (en) * | 1975-12-04 | 1977-01-04 | Schatz Vernon L | Universal funds transfer and identification card |
US4254439A (en) * | 1979-12-26 | 1981-03-03 | International Business Machines Corporation | Facsimile mid-page restart |
EP0031987B1 (de) * | 1980-01-04 | 1986-04-16 | Fanuc Ltd. | Referenzspannungsquelle für eine geregelte Gleichspannungsquelle |
JPS5785109A (en) * | 1980-11-14 | 1982-05-27 | Seiko Epson Corp | Driving circuit |
JPS5785111A (en) * | 1980-11-17 | 1982-05-27 | Fujitsu Ltd | Reference constant voltage power supply |
JPS5785110A (en) * | 1980-11-18 | 1982-05-27 | Oki Electric Ind Co Ltd | Dc stabilized power supply circuit |
US4795898A (en) * | 1986-04-28 | 1989-01-03 | American Telephone And Telegraph Company | Personal memory card having a contactless interface using differential data transfer |
US4880097A (en) * | 1987-04-16 | 1989-11-14 | Pom Incorporated | Park card system for electronic parking meter |
DE3736985A1 (de) * | 1987-10-31 | 1989-05-11 | Grundig Emv | Verfahren zur erfassung von gebuehren bei gebuehrenpflichtigen fernsehsendungen |
US4914742A (en) * | 1987-12-07 | 1990-04-03 | Honeywell Inc. | Thin film orthogonal microsensor for air flow and method |
JP2723296B2 (ja) * | 1989-06-06 | 1998-03-09 | 株式会社東芝 | 携帯可能媒体 |
FR2654235B1 (fr) * | 1989-11-07 | 1992-01-17 | Europ Rech Electr Lab | Lecteur de carte a circuit integre a contacts. |
US5149945A (en) * | 1990-07-05 | 1992-09-22 | Micro Card Technologies, Inc. | Method and coupler for interfacing a portable data carrier with a host processor |
-
1989
- 1989-11-07 FR FR8914567A patent/FR2654232A1/fr active Pending
-
1990
- 1990-11-03 DE DE59010455T patent/DE59010455D1/de not_active Expired - Lifetime
- 1990-11-03 SG SG1996004619A patent/SG52445A1/en unknown
- 1990-11-03 AU AU67385/90A patent/AU639279B2/en not_active Expired
- 1990-11-03 JP JP51575390A patent/JP3194946B2/ja not_active Expired - Lifetime
- 1990-11-03 KR KR1019920701066A patent/KR100212381B1/ko not_active IP Right Cessation
- 1990-11-03 WO PCT/EP1990/001845 patent/WO1991007056A1/de active IP Right Grant
- 1990-11-03 AT AT90916993T patent/ATE141463T1/de not_active IP Right Cessation
- 1990-11-03 HU HU921511A patent/HUT63288A/hu unknown
- 1990-11-03 EP EP90916993A patent/EP0500693B1/de not_active Expired - Lifetime
- 1990-11-03 ES ES90916993T patent/ES2091829T3/es not_active Expired - Lifetime
-
1992
- 1992-05-06 NO NO921790A patent/NO180179C/no not_active IP Right Cessation
- 1992-05-06 FI FI922048A patent/FI922048A/fi not_active Application Discontinuation
- 1992-06-10 US US07/896,531 patent/US5265161A/en not_active Expired - Lifetime
-
1997
- 1997-12-08 HK HK97102362A patent/HK1000753A1/xx not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9107056A1 * |
Also Published As
Publication number | Publication date |
---|---|
NO921790D0 (no) | 1992-05-06 |
ATE141463T1 (de) | 1996-08-15 |
AU639279B2 (en) | 1993-07-22 |
NO180179C (no) | 1997-02-26 |
JP3194946B2 (ja) | 2001-08-06 |
JPH05501464A (ja) | 1993-03-18 |
EP0500693B1 (de) | 1996-08-14 |
FI922048A0 (fi) | 1992-05-06 |
HU9201511D0 (en) | 1992-08-28 |
NO921790L (no) | 1992-05-06 |
ES2091829T3 (es) | 1996-11-16 |
AU6738590A (en) | 1991-05-31 |
HUT63288A (en) | 1993-07-28 |
SG52445A1 (en) | 1998-09-28 |
FR2654232A1 (fr) | 1991-05-10 |
NO180179B (no) | 1996-11-18 |
KR100212381B1 (ko) | 1999-08-02 |
DE59010455D1 (de) | 1996-09-19 |
FI922048A (fi) | 1992-05-06 |
WO1991007056A1 (de) | 1991-05-16 |
HK1000753A1 (en) | 1998-04-24 |
US5265161A (en) | 1993-11-23 |
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