DE2657182A1 - DEVICE FOR IDENTIFYING INFORMATION - Google Patents

Description

27 ^ 73-19

PATENTS NWALTE

you. ing. H. NEGENDAXK <· ιο? 3) · »ip £.-Ing. yy. HAU Clvdipi ..- phy3. W. SCHMITZ DIM ..- ING. E. GKAALFS · DIFL-INcW-WEHKEKT · dipl.-fhys. W. CARSTEISTS

EAMBÜEG-MÜJICnEN 2 S 5 7 1 8 2

XIJSTELI ₁ ITNGSANSCIIRIFt: 2000 HAMBURG 30 ■ NEW ΛνΑΜ, 41 TELEPHONE (O4O) 3β 74 28 TTND 36 4115

^ · TELSGIt. NEGEDAPATENT HAMBTTIlG

Hans-Di edr ich Kr eft sooo Munich 2 ■ mozartstb. 23

Rosenweg 11 phone (oso) 5 38 05 se

TELEGR. NEGEDAPATSNT MUNICH

2057 Reinbek

Hamburg, December 16, 1976

Device for identifying information

The invention relates to a device for identifying information that a first carrier component is assigned, with the aid of reading means which are arranged on a second support component.

For the purpose of finding and recognizing people in numerous cases objects of any kind with markings, symbols and the like, which are marked with the can be identified by the human eye or by means of an automatic reading system. In the reading system is contain reference information with which the read information of the object to be identified is compared will. The information characterizing the object in question is mostly in the form of a coding with the object associated, the coding being stored optically, acoustically, electronically or in any other form and read accordingly with the help of the reading system and

UEUTSCBE BiKK AG. iiamiiuro (BLK 200 "? 0O 00t NH. 05 / 2SI9 * · ßliisuNE» hank kg. H & Mliunn <Btz 200 8OO 00t Nn. 933 6O3Ö · po «äTscnKCKnMB 2S42 ·:

can be identified. One example is the
Magnetic coding of letters or items in a warehouse or supermarket.

There are also numerous applications in which the information by which an object is identified should not be identified by unauthorized persons, for example in locking devices of any kind or documents, in order to protect it against forgery and use in the event of unlawful possession
protection.

The invention is based on the object of creating a device for identifying information that is small in size and is characterized by a large number of hidden combination options
is excellent and can be used in a variety of ways.

This object is achieved in that the information is contained in a first information carrier encoded in the first carrier component, and that the first carrier component also has a receiving element and one which can be influenced by the first information carrier
Signal transmitter has that the second carrier component also has a receiving element and an evaluation circuit containing a second information carrier and is connected to an energy source which can be brought into an energetic coupling with the receiving element of the first carrier component for the purpose of transmitting the energy to activate the components of the first carrier component and Control of the first information carrier in such a way that the signal transmitter emits an information signal which is characterized by the information of the first information carrier and which is sent by the receiving element

... / 2a

809828/0268

received in the second carrier component and optionally after conversion in the evaluation circuit is compared with the reference information of the second information carrier, and that the evaluation circuit emits a characteristic output signal when the first and second information items have the desired relationship with each other.

In the device according to the invention, there is one Identifying information characterizing the object in the form of a passive information structure, which thus of its own accord does not emit any signals through which an unauthorized person could obtain information about the structure of the information structure. Only through energetic coupling with a reading system the information structure is activated, i.e. begins and enables access to the information content. This

80982B / 02S8

is sent back directly or converted via the coupling path and can then be evaluated and identified by the reading system. It is essential to the invention that that the object containing the identification information is passive and the energy for transmitting the information content is supplied to the reading system from the power source connected to the reading system. In this way, a further coding is possible, because only one predefined type of coupling for activation the source of information leads. This also makes it possible to store, read and send the information To build components very small, for example by using miniaturized electronic components, as a supply source is not needed.

The energetic coupling between the first and second carrier component can be of an electromagnetic type. However, it is just as conceivable to provide an ultrasonic coupling. With electromagnetic coupling, essentially all electronic circuit components can be used in miniaturized form, which makes unauthorized identification of information even more difficult. The energy source is, for example, an ^e . ^c / power source, which not only supplies the energy for the electronic components of the first carrier component, but also through their

800825/0268 »../4

Frequency a clock sequence for the circuit components of the first carrier component supplies in order to enable the stored information to be read out at the correct time and transmitted to the receiving member of the second support member. Only then is it possible to identify the To compare information in the correct phase with reference information.

The device according to the invention is extremely versatile. For example, the first carrier component can be a Be a key, while the second support component is a lock. The actual locking mechanism of the lock becomes operated as a function of the evaluation circuit of the second carrier component. It is also possible to interpret the evaluation circuit in such a way that several keys with non-identical information nevertheless have an actuation trigger the lock. Conversely, a single carrier component can contain a single key information as a key, which operates differently designed locks (so-called master key).

Since the first carrier component containing the information to be identified can be thawed extremely small, is It is also possible, for example, to use credit cards, ID cards, driver's licenses or other documents with the

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to provide information source according to the invention, which is designed for example in the form of a small plate, the information source then the characteristics of the Document contains. The plate can thus with the support component'r'Z. B. be associated with the document that its removal or the removal of a protective cover covering the platelet results in its destruction.

Another possibility is the use in manufacturing technology. An item of goods or on a production line The object to be manufactured is provided with the information source according to the invention, and then by reading the Characteristic data at certain locations a precise tracking of the material flow is possible, i.e. determination of time and Location of a certain part of the production.

Another possible use of the device according to the invention exists for all objects that are officially marked, for example a test number. as is the case, for example, with the chassis of automobiles. With the help of the invention can be by incorporating the invention The source of information on or in the frame is assigned a label that can be used by unauthorized persons Page cannot be read and otherwise will be destroyed if an attempt is made to remove it. To this

809825 / 026.8

Way is the so-called hair changing of stolen Automobiles made quite considerably more difficult.

Here, too, the reading system containing the reference information can be designed to identify a large number of different information sources with different information content. Further, the reading system can be set to v / _f ground that is to be identified from a variety of sources of information to be tested only a single.

It has already been mentioned several times that the information source according to the invention can be made small. It is therefore also possible to arrange them in or on a finger ring, which thus acts as a key. The appropriately coded The finger ring can be worn by the user without additional stress or impairment, without the risk of that it is misplaced or lost. According to the basic idea of the invention, rings that have already been used can also be reworked, to receive a component containing the key information. It is also possible to have the key information to let the component containing in a stone, which is • intended for the ring.

In this context, the component containing the information source is preferably embedded in hard insulating material, preferably SIs ₁₅ o <J _er IH-w, a

809825/0268

The invention offers in this, but also in the above mentioned Context the considerable advantage that an identification or actuation of a lock takes place without contact. It is only necessary to have the information source according to the invention in the vicinity of the reading device or of the lock to enable the desired identification process can expire.

Especially when using electronic components, the electronic components on the first and second carrier component be designed so that they together form an oscillatory arrangement when the energetic coupling is made. In the first and second support component there are, so to speak, fragments of the oscillatable arrangement, whereby the passive components of the information source determine the vibration behavior of the vibratory arrangement or help determine which property can thus be used for coding purposes. Only through, for example electromagnetic coupling of the first and second signal generator component is made up of the signal generator and is able to emit an output signal with a predetermined characteristic which can be detected by an evaluation circuit. The latter can also have a signal generator, and the output signals of further signal generators are on given a detection circuit that the output of the

809825/0268 ■ '\' ^{/ B}

first signal generator with the target output signal of the second signal generator compares, whereby only through a mixture of these two output signals is characteristic Detection signal arises and can be evaluated accordingly.

In connection with the last-described embodiment, the information source according to the invention can be frequency-based and / or amplitude-determining circuit part of the signal generator. For example, the electronic Circuit of the first circuit fragment an RC element, which forms an oscillating circuit with an inductance in the second circuit fragment, which when the two circuit fragments with a certain frequency and amplitude oscillates necessary for the information content is characteristic. It is also possible to use the second component, which is connected to the reading system, to assign an oscillator, at the input of which there is an impedance which corresponds to a second impedance of the first carrier component can be coupled. The oscillator and an electronic circuit on the first component are like that dimensioned that with a coupling of the two impedances with inductive and / or capacitive Y-effect of the oscillator is changed in its vibration behavior, preferably begins to vibrate at high frequency or in its high frequency

809825/0268 _{/ g}

-sr-

Vibration is interrupted. The resulting The output signal of the oscillator is an indication of whether the desired code of the identifier is present or the correct one Decoding circuit is present. It can also be a modulator be provided which impresses a frequency or pulse pattern on the frequency of the electronic circuit. The from the energy source, which is connected to the second carrier component, supplied energy feeds the electronic Circuit and the modulator on the first carrier component, the modulator reversing the high frequency signal of the so formed Signal generator impresses a frequency or pulse pattern. This modulation is assigned to the second carrier component, Received tuned to the oscillation of the oscillator receiver and transmitted to a detection device. Thus, the oscillator, which acts as a transmitter in the present case, gives when coupled with the electronic one Circuit of the first carrier component a transmitter voltage with a certain frequency combination or a pulse pattern which means that both the type of modulation and the carrier frequency are specific to the coding. The result selectivity achieved is extremely high. It is therefore hardly possible to measure the information content to determine, because this is a fixed, unknown frequency and a frequency or frequency linked to it in an AND function Impulse patterns are to be determined and the transmitter only when coupled

809825/0288

... / 1O

of the first and second carrier component begins to vibrate or is interrupted in its high-frequency vibration. The resulting output signal of the oscillator is an indication of whether a correct or an incorrect key is being used. Basically a capacitive one Coupling possible, although inductive is usually preferable. In the latter case · tiny ferrite antennas are provided.

Embodiments of the invention are described in more detail below with reference to drawings.

Fig. 1 shows in perspective a finger ring with an integrated key component according to the invention.

Fig. 2 shows schematically part of a lock.

Fig. 3 shows a section through the lock part according to Fig.

Fig. 4 shows a circuit diagram for a power supply of an electronic circuit arrangement in the lock.

Fig. 5 shows a block diagram of an embodiment - the locking device according to the invention.

6 shows a block diagram of a further embodiment of the locking device according to the invention.

809825/0268 --- Z ¹¹

Fig. 7 shows a block diagram for electronic components for a first and a second Carrier component for a further embodiment of the device according to the invention.

• ■ -

Fig. 8 shows schematically an application of the device according to the invention.

-. FIG. 9 shows a section through the device according to FIG. 8 along the line 9-9.

A finger ring 1 from a GoJc regulation or another Metal alloy has a recess 20 on the outside, in which a component 21 is embedded, which is on the surface with two contact surfaces 3 made of hard metallic material is provided. A switch tkx-eis is located in component 21 2 (Fig. 5) j the in hard insulating material, for example glass or enamel, is embedded and its connections lead to the contact surfaces 3, which are accessible from the outside. "On the structure of the circuit 2, which contains an identifier or key information for a lock, is described below still received,

Fig. 2 shows the "top view of a section of a lock, that is raised, for example, "attached to a door. In the Raised section 22 is located, slightly sunk a scanning surface if (see also Fig. 3), in which two contact surfaces 23 of movable contact pins are arranged, one of which boi 6 is shown in FIG. 3. Vie from Fig. 3 can also be seen

80982 B / 026 B

/ 10

the contact surfaces 23 stand slightly above the scanning surface 4 over, the contact pins being pressed in the direction of the scanning surface 4 with the aid of a spring 24. ¥ ie one from the comparison the illustrations according to FIGS. 1 and 2, the surface of the component corresponds in shape to the scanning surface

in

4, so that both surfaces can only be brought into contact with one another in one layer so that the contact surfaces 3 niit the contact = . surfaces 23 of the contact pins 6. · ': can come into contact.

From Fig. 3 it can be seen that the contact pin 6 is a contact spring

- 24th
25 operated by pressing the lock against the spring / xn. Via a transverse web 2.6 , the contact spring 25 actuates another contact spring 27 of a switch 5 (see also FIG. 4). It goes without saying that the other contact pin, not shown, actuates a parallel contact spring arrangement. The contact switches 5 are in series with a supply current which is fed by an Eattcrie 7. In parallel with the terminals of the battery 7, there are terminals 9 for connecting an external power source in the event that the battery is exhausted or fails in some other way. Finally, parallel to the terminals of the battery 7 are an optical display 10 and an acoustic display 11, which are put into operation as soon as the switches 5 are closed. A circuit 8 (FIG. 5) is also connected to the contact spring 25, which when the contact surfaces 3 dos finger rings and 23 of the contact pins 6 come into contact with a circuit 2 which is accommodated in the component 21

will . ■ '·:

set/. This is shown schematically in FIG. 5, in which a '. dashed line 23 the separation between the parts that

indicates, are stationary assigned to a lock part and the circuit /

809825 / Q2P?

which belongs to the finger ring 1.

• ■ ·

The two circuits 2 and 8 are constructed so that together they result in a signal generator 14, vie by the dash-dotted line indicated. The circuit 2 is the "frequency- and amplitude-determining part of the Signalgenera.tors". The identifier of the ring spanner 1 according to FIG. 1 is accordingly a predetermined frequency and a predetermined amplitude am Output of the signal generator. Checking the output signal

in ·

takes place / an evaluation unit 12, in that the output signal is first given to a mixing device 13 in which the output signal of the signal generator 14 is mixed with an output signal of a second signal generator 15. The resulting social is fed to a discriminator 16 and rectified. A detection circuit arrangement 17 scans the signal dos discriminators 6 for predetermined data and, if the test conditions are met, controls a locking device 18 which releases the lock in the lock. If the key signal does not match the test conditions, the detection device sends a signal to an alarm device 19

The embodiment shown in Fig. 3 can also be afago- • converts be that the signal generator 15 like the signal · · gonarator 1 ^ can be constructed, namely from two separable Circuits consisting, in turn, the frequency and amplitudonbostirarnende component in the same key ring or a separate key ring according to the desired requirements for a locking system.

809825/0268

The block diagram of FIG. 6 shows one possibility, a
Locking system with an electronic key, for example a similar one as shown in Fig. 1, a contactless one
To operate the locking device. To this end is in one
King odor similar key a tiny ferrite antenna 30 mounted, the "winding with a circuit, preferably in miniat'Lsisierter construction, is connected, the newly trap is arranged in the ring _f similar to the member 21 of FIG. 1. On the circuit is, after a Modulator 32 ■ completed, which is also arranged as a miniaturized component in the ring.
Associated with a lock part are a second ferrite antenna 33f an oscillator 3 ^ - »a receiving device 35 1 a detection device"} 6 _} a switching device 37 and an unlocking device 38. The circuit arrangement shown works as follows.

When the ferrite antenna approaches for 30 s * ^1, the ferrite antenna 33
the oscillator circuit 3k begins to oscillate at a high frequency.
The frequency of the oscillation is determined by the circuit 3I
certainly. The energy absorbed by the circuit 3I feeds. the modulator 32, which reverses the oscillation frequency
Imposes frequency or pulse patterns. Accordingly, a frequency or pulse-modulated oscillation appears at the output of the oscillator 3 ^ as the key factor. The capture device 35 is matched to the key identification and transmits the * output signal to the identification device 361 at
correct signal via the switching device controls the unlocking device. Dio through the circuit arrangement

809825/0268

- 15 -

Fig. 6 selectivity achieved is very "high, since it is hardly possible to determine the identification of the key by measuring the lock, this veil a fixed frequency unknown ^ and a linked with her in AND function frequency or Impulsmus he t is to be determined and the ori ^ este transmitter in the form of an oscillator •. circuit only vibrates in the presence of the key »·. '

In Fig. 7, two boxes 50, 51 are shown, each contain electronic components, the box 50 being the second support component and the box 51 being the first support component assigned. First, reference is made to the circuit in box 50.

An alternating current source 52 of relatively high frequency, for example in the megahertz range, feeds a coil or Antenna 53. In parallel with the terminals of the alternating current source 52 is a receiving element 54, the output of which is connected to an evaluation circuit 55 is connected. The output of the evaluation circuit 55 is connected to a comparison stage 56 which also with the output of a reference information stage 57 connected is. A groove ζ si appears at the output 58 of the comparison stage

A coil 59 or antenna can be coupled electromagnetically to the coil. The two terminals of the coil 59 are with a Filter stage 60, which can also be a rectifier stage, connected. At the output of the filter stage a appears at 61 Supply voltage for all other blocks in the box

• · ... / 16

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A clock generator and synchronizing element 61 is controlled via the frequency in the coil 59 or in the filter stage 6G, which in turn controls a control circuit 62, the output signals of which are sent to an electronic switch 63, for example a shift register -Matrix is queried in which information is contained in some known way, for example in the form of states of inactive components. However, signal generators can also be arranged at the intersection points. The code matrix 64 is read by a reading and output stage 65 and converted into corresponding signals for a code signal generator 66. The output signals of the stage 65 or the code signals of the signal generator 66 are significant for a specific information content of the code matrix. The code signals are coupled to the circuit of the coil 59 via a line 67, as shown schematically at 68.

A threshold level 69 is set by the supply savings acted upon on line 61. It sends a switch-on signal to the code signal generator 66 and the control circuit 62 only when there is a minimum voltage. This is to prevent interference voltages from causing an operation the circuit.

... / 17

Vf-

The circuit arrangement shown in Fig. 7 operates as follows.

The energy source 52 is operated at a predetermined frequency. As a result, the energy source is not just a source of supply for the circuits of box 51, but also timers for the timing of all in the circuit arrangement running processes. The clock

61 therefore ensures that the time sequence is maintained in the switching stages of the first carrier component 51. He thus ensures synchronization of the chronological processes

with regard to the predetermined by the energy source 52 Cycle rate. The control circuit 62, which is normally a logic circuit, controls the interrogation of the code matrix 64, for example, in that, one after the other, electronic interrogation signals via the electronic switch 63 can be given to the code matrix 64. However, it is also possible to generate several interrogation signals at the same time or to choose a specific sequence and assignment of the interrogation signals. This is done in the logic circuitry of the control circuit

62 adjusted accordingly. The control circuit 62 is also driven by the threshold level 69, therefore only begins to work when a query is actually present. The control circuit 62 also ensures that the query via the electronic switch 63 always begins at the desired point,

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... / 18

for example, it resets the shift register when it takes over the function of the electronic switch 63.

In the type of interrogation by the control circuit 62 there is already a coding option that is provided by the prior to the Creation of freely selectable programmable code matrix is increased quite considerably. For example, the temporal The sequence and the number of pulses received in stage 65 may be significant for those stored in circuit 51 Information. The code signal generator 66 gives the information signals to the circle of the coil 59, for example in serial form, via the coupling of the coils 59 and 53 the code signals are transmitted back to the circuit of the coil 53 and can be picked up by the receiving element 54 will. When operating with pulses when retransmitting the

Is it possible
Code signals / to stop the delivery of clock pulses during this time, for example by briefly bridging the filter stage 60. If, on the other hand, amplitude or frequency modulation is used, simultaneous interrogation and code signal retransmission is easily possible.

The receiving element 54 is the received code signals, for example Pulses to the evaluation circuit 45, which processes the signals so that they are linked to reference information signals from the reference information stage 57 in the comparison stage we can compare. Is the output signal of the

809825/0268 ... / 19

Evaluation circuit 45, - the one contained in circuit 51 Information is significant in a predetermined relationship to reference information 57, for example with this identical, a useful signal appears at the output of the comparison stage 58, which can be used accordingly.

The circuit arrangements 50 and 51 can be total or be partially connected to a carrier component, wherein the carrier components are both movable or at least one of them. For use in locking devices, for example, the circuit arrangement 51 is the key, for example in the form of a key a finger ring, while the circuit arrangement 50 is part of an electronic lock.

8 shows a card 70, for example a credit card, a document or a similar carrier component, which consists of a base layer 71 (see FIG. 9) and a protective layer 72 exists. In a recess 73 of the support layer 71, a plate or chip is inserted, which contains all the components the circuit arrangement 51 contains in miniaturized form. The protective layer covers the plate 51 and is so with connected to this, for example by gluing, that when the protective layer 72 is removed, the function of the small plate gets destroyed. The plate 72 is, for example, permeable to the transmission of electromagnetic energy. There are

... / 20

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also 2 two windows 74 shown in the protective layer 72, into which antennas or coils corresponding to coil 59 protrude. This enables the coupling to the coil 53 (see Fig. 7) can be improved due to the reduced air gap.

8 shows a circuit arrangement 50 as a reading system the box 50 in Fig. 7 or part of the components shown therein. In Fig. 8, 50 denotes one by hand "actuatable movable reading rod on its front face the coil 53 has. The reading rod is connected via a cable 75 to a display device 76 which has a scale display 77 and a digital display 78 contains and two control buttons 79, 80, with which the reference information in the stage 57 of Fig. 7 can be set, i.e. display of a certain number of different pieces of information, which with the reading stick 50 can be determined by reading different carriers 7O, Identification of a single or a limited number of specific information, etc.

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Claims (26)

.Patent claims 1. A device for identifying information which is assigned to a first carrier component, with the aid of reading means which are arranged on a second carrier component, characterized in that the information is contained in a first information carrier encoded in the first carrier component, that the first carrier component also has a receiving element and a signal transmitter that can be influenced by the first information carrier, that the second carrier component also has a receiving element and an evaluation circuit containing a second information carrier and is connected to an energy source which can be brought into an energetic coupling with the receiving element of the first carrier component for the purpose of transmitting the energy for activating the components of the first support member and driving the first information carrier such 'that the signal transmitter emits an embossed from the information of the first information carrier information signal from the receiving member received in the second carrier component and optionally .809 825/0 28 8, · "• ^{/ 22} ORDINAL INSPECTED after conversion in the evaluation circuit compared with the reference information of the second information carrier is, and that the evaluation circuit is a characteristic Output signal emits when the first and second information have a desired relationship to each other. 2. Apparatus according to claim 1, characterized in that a transducer is assigned to the receiving element in the first carrier component is, at its output a supply voltage for the electronic components of the first Support component supplies. 3. Device according to claim 1 or 2, characterized in that that the receiving element in the first carrier component has an energy level is assigned, which initiates a control of the first information carrier only if the received Energy exceeds a minimum value. 4. Device according to one of claims 1 to 3, characterized in that in the first and second carrier component complementary parts of an electronic signal generator are provided. 5. Apparatus according to claim 4, characterized in that the electronic components of the first carrier component are frequency- and / or amplitude-determining circuit part of the signal generator. 6. Apparatus according to claim 5, characterized in that '' that the second support component contains an oscillator, at the input of which there is an impedance and the second carrier component one that can be coupled to the first impedance second impedance on v / eist. 7. Apparatus according to claim 6, characterized in that the impedances contain ferrite antennas. 8. Apparatus according to claim 6 or 7, characterized in that that the first carrier component has a modulator for impressing a frequency or pulse pattern. 9. Device according to one of claims 1 to 8, characterized in that the first carrier component is a finger ring is or .. the carrier component is connected to a finger ring or the like. ... / 24 809825/0268 10. The device according to claim 9, characterized in that the finger ring on the inside or outside of a Has a recess or a through opening for receiving the first carrier component. 11. The device according to claim 9 or 10, characterized in that -. that the first carrier component is embedded in hard insulating material is, preferably glass or enamel. 12. The device according to claim 1 or 2, characterized in that when using an enclosed stone or the like, the carrier component is arranged below the stone or embedded in the stone. 13. Device according to one of claims 9 to 12, characterized in that it is preferably made of hard material electrical contacts of the first carrier component are led out on the outside of the ring that on a lock correspondingly movably mounted contacts are provided, preferably contact pins through which a Electronic circuit of the first carrier component galvanically with the supplementary circuit on the lock for the purpose Formation of a signal generator is coupled. 809825/0 268 14. The device according to claim 13, characterized in that that the movable contacts on the lock at the same time a switch in the supply circuit between the power source and actuate the electronic circuit arrangement. 15. The device according to claim 14, characterized in that that an acoustic and / or optical display device is connected in the supply circuit. 16. The device according to claim 14 or 15, characterized in that that positioning means are provided on the ring and on the lock to bring the contact surfaces together in the correct position Ring and at the lock. 17. Device according to one of claims 14 to 16, characterized in that the electronic circuit in the ring is constructed symmetrically. 18. Device according to one of claims 1 to 17, characterized in that characterized in that the circuit components on the first carrier component, in the form of a plate or the like are formed, which is embedded in the first carrier component or applied to the outside thereof. ... / 26 809825/0268 19. The device according to claim 18, characterized in that that the first carrier component is a card, plate, rail or the like consisting of one or more layers is. · 20. Apparatus according to claim 18 _f or 19, characterized in that. that the plate or the card, plate, rail or the like is covered by a protective cover that is permeable to the coupling energy. 21. The device according to claim 20, characterized in that the plate is connected to the protective cover that when opening or removing the protective cover, the function and / or the structure of the plate is destroyed. 22. The apparatus of claim 20 or 21, characterized in that one or more dilutions or windows in the Protective cover are provided through which a coupling component is passed in whole or in part. 23. Device according to one of claims 1 to 22, characterized in that several in the first information carrier Information is stored. ... / 27 809025/0268 24. Device according to one of claims 1 to 23, characterized in that a timer is provided for a time-dependent switching on and off of the information of the first and / or second information carrier 25. Device according to one of claims 1 to 24, characterized in that with the second carrier component a Control stage is connected, which is a control signal for a Circuit, a clutch, a locking mechanism or the like outputs in the event that the first and second Information have the desired relationship to one another. 26. Device according to one of claims 1 to 25, characterized characterized in that the first support member with a . and / or manipulation Selector circuit is connected for programming / reference information. 809825/0288