EP0596093A1

EP0596093A1 - Card-shaped information carrier and its use

Info

Publication number: EP0596093A1
Application number: EP93912727A
Authority: EP
Inventors: Gerald Knab
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-05-20
Filing date: 1993-05-19
Publication date: 1994-05-11
Also published as: AT400647B; WO1993023826A1; DE4221305A1; AU4313993A; ATA103092A

Abstract

Un support d'information se présentant sous forme de carte comporte une bande d'induction (4) avec une boucle d'induction (1) disposées dans le plan de la carte, ainsi qu'un matériau magnétisable (3) inséré à l'intérieur.An information carrier in the form of a card comprises an induction strip (4) with an induction loop (1) arranged in the plane of the card, as well as a magnetizable material (3) inserted at the interior.

Description

Card-shaped information provider and its use

The innovation concerns a card-shaped information provider for the transmission and storage of data. Different versions of magnetic cards and chip cards are known in the form of plastic cards, single and multi-track magnetic strips made of magnetizable materials, such as materials made of metal powder, being used. Microchips and flat coils are also integrated into chip cards in order to carry out contactless data transmissions in a close range of an electromagnetic field of a reading device.

The innovation concerns a magnetic strip designed as an induction strip for the transmission and storage of data. The simplest version of a magnetic strip of this type, designed as an induction strip, consists of a multiply subdivided metal layer made of magnetizable materials with an embedded induction coil designed in a meandering shape. The induction strip is embedded or applied in a carrier layer made of flexible plastic.

Such an induction strip is simple to manufacture, since the metal layer and the induction coil are arranged in a single plane, and therefore no through-contacts are necessary. The induction strip can also be written on and read using conventional reading devices for magnetic cards, the information in the magnetizable material, in particular if it consists of hard magnetic material, being retained.

In the case of a short-circuited induction coil, the induction strip is suitable, for example, as a security sticker for goods or objects in shops, museums and the like. The like. Facilities, which can be made very small and on the back by means of an applied adhesive layer to goods to be secured in the sense of theft protection in an inconspicuous manner, or is integrated in price stickers. Security systems for goods with short-circuited coils require an alarm transmitter at a passage point in the goods store, which essentially consists of an oscillator designed as a transmitter. If a short-circuit coil in the area of Bring high frequency field of the oscillator, the short-circuit coil dampens the oscillator especially when the oscillator and the short-circuit coil resonate, since an induction is produced in it, which withdraws energy from the oscillator, thereby measuring its energy output and possibly triggering an alarm

In the embodiment of the induction strip with short-circuit coil according to the invention, high sensitivities are achieved, since in a high-frequency field the induction coil dissipates the energy supplied by the transmitter into the magnetizable material and eddy current losses occur therein, whereby a high damping of the excitation field is achieved. The damping properties can be changed through a targeted choice of the magnetizable material, for example with soft or hard magnetic properties and combinations thereof, as well as its spatial arrangement and its volume. Furthermore, the windings of the induction coil form coupling capacitances, so that the properties of the resonant circuit, in particular its resonant frequency, are determined over a wide range by the choice of the distances between the windings. A reduction in the resonance frequency from the GHz range to the MHz and kHz ranges therefore simplifies the circuitry for transmitters with air coils in the GHz range and thus saves costs. Due to the increased sensitivity, the distance to a transmitter can also be increased.

Such an induction strip also serves to identify goods, since information about goods, such as prices and delivery dates and the like, can be found in the magnetizable metal layer. can be saved and read using a magnetic head. At one point, for example in the short-circuit turn, the induction strip has a predetermined breaking point with a very thin conductor track. The devaluation of an induction strip described with information takes place in a simple manner in a high-frequency field of defined power, as a result of which the data are deleted by an induced vortex field when the induction coil is short-circuited, and the predetermined breaking point is destroyed with increased power.

Another possibility is to connect the induction coil to a microchip integrated in the carrier layer, which takes over several functions. In a security system for goods, the chip can be programmed as a short circuit, whereby the above-mentioned functionality is still guaranteed. On the other hand, the chip is used to identify goods and objects by programming the data into the chip, the amount of data being limited only to the execution of the memory in the chip. The information is stored in the microchip via the induction strip and read out again. If this chip card is the size of a credit card in the conventional sense, data transmission with known readers for magnetic cards is provided.

Another great advantage is that it is not necessary to pull the magnetic card through the reader at a certain speed, since the data transmission takes place both when the card is being passed and when the card is stationary. The arrangement of the induction coil and the magnetizable layer creates vertical stray fields when current flows through the coil at all boundary layers of the induction coil and metal layer, as a result of which an induction voltage is generated in a reading magnetic head, even when it is at a standstill. A data transmission with digital signals is thus carried out in a bidirectional direction, that is from a writing magnetic head into the induction strip and further into the microchip, and from the induction strip into a reading magnetic head.

In a system for securing and / or identifying goods, where a small embodiment of the production strip is necessary, a read / write head in the form of a pen can also be provided instead of a reader for magnetic cards. With this writing / reading pen, for example, the cashier can save prices and other data in the chip of the card or, when goods are sold, read the programmed prices and transfer them directly to a cash register and book them. This can also be linked to an automatic and error-free system for posting and billing goods, since input errors in conventional cash registers with a keyboard are largely avoided. It is also planned to integrate a small LC display in order to show the price information to the customer, for example. There are also other areas of application, such as electronically readable stamps, for automated mail management.

Controlled short circuits with the integrated chip also enable contactless data transmission in a close range to one controlled with digital signals electromagnetic field possible. Different forms of the induction strip, for example with longitudinal coils and magnetizable materials embedded therein, are provided in order to achieve greater sensitivities within excitation fields, since large numbers of turns are possible. There are also execution forms with multiple divided longitudinal strips or embedded metal powder materials with a defined grain size.

There are a number of areas of application for contactless chip cards in credit card systems. If there is a chip card with induction strips in an electromagnetic field, a read / write unit, which is controlled with digital signals, bidirectional data transmission can be carried out within this field, the integrated chip in the card generating short-circuits of the induction coil as serial data signals Such a data carrier, for example the size of a credit card, can be used as an active data carrier in banking, as a means of payment, for access control, as a key, as a parking card, as a personal data store, as an electronic driver's license, as a club card, as a health passport, as a gene code memory, as an emergency ID, as a passport and Identity card u. Like. Find application. Due to the compatibility achieved with existing different systems with readers for magnetic cards and / or contactless readers, several applications can be combined in a single chip card. For example, a personal chip card can be used both as a telephone prepaid card, as a ticket, as a house key, as an electronic check book or for flexitime recording in the company and in the industrial sector.

For such a multifunctional chip card, the induction strip is formed in several layers, as a result of which a spatially arranged induction coil surrounds a continuous layer, in particular made of soft magnetic materials, for example of ferrite materials.However, such an induction strip has essentially the same properties and advantages as the single-layer production strip Even higher sensitivities are achieved in an electromagnetic field if a large number of turns are made in the j induction coil. Since the magnetic field strength is proportional to the number of turns, the sensitivity also increases Such an induction strip is produced in multiple layers, for example by applying, evaporating or etching out different layers of material. Manufacturing processes of hybrid and thick-film technology, or in the screen printing process, plasma polymerization, ion implantation or galvanotechnical processes and the like can also be used. be used. The simplest method of manufacture is to wrap a ferrite core with a very thin painted conductor, such as copper wire. General advantages of these chip cards result from the contactless data transmission, which prevents contamination of contacts and thus sources of error, as with conventional chip cards. In this embodiment, the ferrite material is preferably pulled through the entire length of the magnetic strip, the induction coil surrounding it. At the top, magnetizable materials with hard magnetic properties are also embedded between the turns of the induction coil, on the one hand to ensure readability with conventional readers for magnetic cards, and on the other hand to create a magnetizable layer which can store information. This also forms magnetically closed circles with a gap on the surface, which are suitable for data transmission by means of a magnetic head. The properties of the transmission of data and the sensitivities can be controlled by varying the gap width. Combinations of different magnetizable materials are therefore provided in such an induction strip. Multi-layer induction coils are also embedded in the magnetic circuit, and tapping of the induction coil is also provided. Further shapes with staggered induction coils and likewise staggered magnetizable layers are provided in order to form a more uniform magnetizable surface, which is a continuously continuous magnetizable layer and is largely independent of the walking speed of a reading head

Likewise, subdivisions of the induction coil are provided in order to carry out simultaneous data transmissions in a bidirectional direction and simultaneous energy transmission in a reader with several magnetic heads. This increases the speed of data transmission and thus significantly reduces the processing times for chip cards, since parallel data transmission is possible. This also significantly increases the security factor against manipulation, since the information is transmitted in a distributed manner. On the one hand, the data of an integrated chip and also of the induction strip can be read contact-free with conventional magnetic reading heads and also in a close range of an electromagnetic field; , preferably at frequencies of 10-900 kHz. An antenna is formed with the continuous Feirit layer, which enables long-distance data transmission over long distances in the kilometer range. Thus, for example, a system for transferring bank accounts within localities can be implemented. The current account balance can be transferred daily from a sending unit of the financial institution to the chip card and thus to the user, for example at night, in such a chip card, designed as an ATM card, for example with an integrated display.

In order to ensure the highest possible security standard, it is provided that the induction strips on a cash dispenser card are provided with multiple taps, so that each magnetizable segment in the induction strip can be controlled by the microchip. The chip card is thus switched on when approaching an ATM, and the integrated microchip writes the current data into the induction strip after confirmation of the code number. The data can then be read out using a conventional magnetic read head and updated if necessary, and stored in the memory of the chip card. To protect against tampering, the induction strip is deleted again when the ATM leaves the ATM. It is also possible to continuously check the balance of the chip card and the bank computer, in particular if ATM transactions are carried out in different locations.

Likewise, applications in the vehicle sector with transmission of traffic fineness information are provided. Also, an information transmitter mounted on the freeway driveway with a integrated fa-direction detector can send a signal to the chip card in the vehicle if the vehicle drives onto a motorway in the wrong direction. The chip card in the vehicle can emit a signal tone that warns the driver of the vehicle When using multiple information transmitters on motorways, automatic toll processing is also provided, or when crossing the border, contactless registration of data, and therefore also tracking across multiple borders with automatic data acquisition. An information sender can vary depending on Detection area as an infrared transmitter, high-frequency transmitter or microwave transmitter, which transmits the data to the chip card.

These chip cards are therefore suitable as universal reception cards for information such as, for example, traffic data, environmental data, weather data, location data, hazard data in the industrial sector, or personal communications and the like. In general, it is provided for all cards with such induction strips to carry out an energy transfer via the induction coil in the vicinity of a transmitter. A high energy density is achieved due to the design with a drawn ferrite layer and the appropriate choice of transmission frequency. This can also be used to charge an integrated storage battery, or to ensure the energy supply for the components within the high-frequency field of the transmitter, and to transfer data or change the chip.

By embedding the induction strip and the microchip in a frame made of light-collecting and light-conducting plastic, the system is expanded to include optical data transmission. Integrated micro buttons in the form of optical switches are also provided, which are used, for example, for code entry. Cavities are formed by recesses in the light-collecting material, wherein a pressure on a surface in the light-collecting material designed as a key causes a shifting of refractive edges and thus an optical interruption or an optical conduction of light rays. These optical switches can be made very flat, and there is also the possibility of using ambient light for transmission to a photodiode integrated as a detector. Light-collecting plastics in particular have the property of absorbing ambient light and emitting it into the frame through total reflection and embedded fluorescent materials. These materials are known under the term LISA material and are characterized by high-melting properties and light-conducting properties, as well as edge brightness. Likewise, a luminescent diode can also be provided as the light source, or else capacitive keys.

By entering a personal code number on the keys of the chip card, the security problem of chip cards is generally solved, since using the card, for example, as a means of payment or ATM card with the entry of a code directly must be confirmed on the card. Compared to the conventional ATM system, security against manipulation is increased many times over, since the release of communication from the reader and card is also confirmed on this. To carry out cash withdrawals from ATMs, the ATM emits a radio frequency field in a nearby area which supplies a chip card in the immediate vicinity with energy. By entering the personal code on the chip card, the card itself releases the authorization and thus communication with the ATM Even if the card is lost, manipulations are largely excluded. It can also be provided to additionally enter the code at the ATM and to grant access only if there is a mismatch.

Optical data transmission is achieved by integrating transmission and reception diodes for the infrared region in the light-conducting frame. The chip card thus becomes a combination card, which means that even if a transmission option fails due to interference and the like. can be switched to another. The infrared diodes are arranged in the frame so that they radiate horizontally into the light-guiding frame. The light is guided in the frame preferably in a horizontal plane, so that the radiation is guided to the outer edges and is emitted from there. A light-reflecting layer is attached to the inner boundary of the components, the production strip and the IVüchrochip, so that no radiation is lost. The radiation is thus emitted - at least on three outer edges, which largely ensures position independence.

Embodiments with an integrated LC display are also provided, whereby, for example, a simple parking card with a display of the available parking time is realized. Such a card with infrared control can be used as a parking meter for free and paid parking zones. This parking card is not on the sidewalk like conventional parking meters, but can be attached in the motor vehicle, for example on the inside of the windshield. A disadvantage of current parking meters is often longer walkways from the parking lot to the parking meter to get a parking ticket and back to the parking lot to put it on the dashboard. A parking card in the form of a chip card can be used universally so that both free and fee-based debits are possible and the possibility is also given to realize different evaluations of parking times in different cities or zones or to make the debiting fees dependent on the time of day . The parking card can be used as a time counter for free short-term parking zones, on the other hand it is possible to load the parking card with parking time for paid parking zones and to unload it during the parking process by expiring this parking time. Parking time is purchased by means of cash register terminals or vending machines, which are located at sales points, for example gas stations, tobacco shops and the like, the user having the free choice of buying any number of parking times. The parking time sold can be offset against the relevant city administration based on the cash register protocol.

For example, a solution can be implemented in such a way that an electronic time display has a counter for the parked time with a display for this time, a start / stop device for starting or stopping being provided for the counter, and that a memory for paid parking time and a processor or controller is provided in the microchip for debiting the parked time from the parking time available and paid for in the memory. In this way, each parking time subject to a charge is deducted from the parking time paid in the memory, to the exact extent that corresponds to the parking time used. The advantage is that the debiting process takes place only to the extent of the parking period that the user has actually used, that is to say in the time interval from the start of the parking process to its completion. With conventional parking meters, on the other hand, the user pays a certain parking time in advance, regardless of whether he fully consumes this parking time or not.

A chip card as a parking card has a free label for entering user data, such as name and number of the motor vehicle. This means that it cannot be transferred to other vehicles. Since the parking card is visible from the outside of the windshield and has a large display, the parked time can be seen from the outside at all times. There is also the possibility for the executive to photograph the user data and the display. In case of doubt, this makes it much easier to provide evidence. For toll-free parking zones, a start / stop button is provided, which must be pressed during the parking process. A "CASH / FREE" button is also provided to switch to toll-free mode. From this point on the display starts a time counting from zero, with a second display signaling the time counting. When the parking process has ended, the time counting is ended by pressing the Start / Stop button

Another -.nfoπnation in the display can be an info identifier "FREE" or "CASH" to indicate the fee-free or fee-based mode. When using the parking card in paid parking zones, a corresponding number of parking hours must first be purchased, whereby the loaded parking time is then available for several parking processes. During a parking process, the corresponding parking values are deducted from the credit memory until the entire available parking time has been used up. The display then stops at the corresponding meter reading and signals an expired credit. To check the remaining credit, press the "CREDIT" button, which shows the remaining parking time on the display.

The starting and stopping process for debiting the parking time already paid in the memory can take place automatically in the case of paid parking zones when the parking lot is approached by an information transmitter located in the parking lot. The information transmitter has the shape similar to a coin parkometer, at the upper end of which there is a transmitter unit which has a detection area limited to the parking space. The nation transmitters are mounted on the parking spaces and can also serve as a parking space limitation.

This .Moπriationssender for controlling the parking card can be designed as Lrifrarotsender and take over several tasks, for example the control of the start and stop process, the activation of a certain zone or the time of day control for strongly progressive parking zones. The use of the hifiation transmitter includes the possibility to debit different parking fees for different cities. Different zones within cities can also contain different tariffs. Solar cells can also be used for continuous energy supply on the transmitter unit.

REPLACEMENT LEAF Different embodiments of the induction strip are explained in more detail below with reference to the drawings, each of which shows schematically:

Fig. 1 An induction loop designed as a short-circuit turn in a ri-iander design.

Fig. 2 An induction strip designed as a magnetic strip

Short circuit turn and embedded magnetizable materials in enlarged representation.

Fig. 3 shows a longitudinal section through the induction strip in an enlarged representation.

Fig. 4 is a side view of a security strip for goods and objects.

Fig. 5 An induction strip in an enlarged view with connected

Microchip for storing data.

Fig. 6 A chip card with several subdivided or tapped induction coils in an enlarged representation and connected microchip.

Fig. 7 shows a cross section through the chip card.

Fig. 8 An embodiment of the induction strip in a greatly enlarged

Display with multi-subordinate magnetizable materials.

Fig. 9 shows a longitudinal section through the induction strip in a greatly enlarged

Presentation.

10 shows a chip card with induction strips in an enlarged representation with a continuous ferrite layer which is surrounded by an induction coil

Fig. 11 shows a schematic arrangement of an induction coil. Fig. 12 A greatly enlarged representation of the induction strip with a ferrite layer running through it

Fig. 13 An induction strip with staggered magnetizable layers and staggered liduction coil.

14 shows a longitudinal section through the induction strip from FIG. 13.

Fig. 15 A longitudinal section through emen duction stripes with delined gap width.

16 shows a longitudinal section through an induction strip with a continuous ferrite layer

17 shows a longitudinal section through an induction strip with a multi-layer induction coil.

Fig. 18 An induction strip with a longitudinal coil and embedded magnetizable longitudinal strips.

Fig. 19 An induction strip with a longitudinal coil and multiple divided longitudinal strips.

Fig. 20 shows a cross section through the induction strip with sub-longitudinal stripes.

Fig. 21 An induction strip with a longitudinal coil and a ferrite layer in the middle of the induction coil.

Fig. 22 An induction strip with a longitudinal coil and enclosed ferrite core with a magnetic strip surface.

23 shows a cross section through the induction strip from FIG. 22.

24 shows a cross section through the induction strip with a magnetic layer that can be magnetized on both sides Fig. 25 A chip card with induction strips and integrated infrared transmit diodes and receive diodes and built-in optical buttons.

Fig. 26 A sectional view through a LISA material with an optical button and integrated photodiode.

Fig. 27 The spatial representation of an optical button made of high-quality plastic.

Fig. 28 A protective film for the top of a chip card.

Fig. 29 A light-collecting plastic frame with recesses for the components and for the optical buttons.

30 shows a substrate plate with an applied induction strip and components.

Fig. 31 A chip card with an integrated DOT matrix display made of liquid crystals and integrated buttons.

32 shows a schematic block diagram of a microchip for the management and storage of data with connected induction strips.

Fig. 33 A schematic representation of information transmitters in the form of infrared transmitters in parking lots.

34 shows an arrangement of information transmitters with simultaneous parking space limitation.

Fig. 35 Another arrangement of information transmitters.

Fig. 36 The embodiment of an information transmitter. According to FIG. 1, an indication loop (1) is formed in a layer in the form of an edge. The ends of the induction loop (1) are connected to one another via a short-circuit turn (2).

According to FIGS. 2 and 3, sections (3) made of magnetizable material are arranged in the spaces between the meandering turns of the induction loop (1). The sections (3) thereby form a layer of magnetizable material that is often undercut.

According to FIGS. 2 and 3, the induction loop (1) and the sections (3) made of magnetizable material together form an induction strip (4) which, for example, in a carrier layer (5) is arranged from plastic. The turns of the induction loop (1) and the sections (3) are arranged in the strip (4) in longitudinal section alternately in one layer, as shown in FIG. 3

The sections (3) made of magnetizable material can be magnetized with known readers with a magnetic head and thus also read again, as a result of which the induction strip (4) can be used as a data carrier. Due to the induction loop (1) provided with the short circuit turn (2) and the magnetic material sections (3) embedded therein, the induction strip (4) absorbs energy in a high-frequency field, so that it can be used as a security strip for goods.

According to FIG. 4, the card-shaped information transmitter has a protective film (6) on an outside. The induction strip (4) is arranged on a carrier layer (5), on the outside of which there is an adhesive layer (7) for attaching the information transmitter, for example to a product

5, the production loop (1) of the production strip (4) is connected to a microchip (8). The microchip (8) can contain a memory for receiving .nfoπnations. The diction strip (4) with an integrated microchip (8) can be used as an identification strip for goods and objects of a kind.

E According to FIG. 6, a chip card in the size of the known credit cards has a number of induction loops (la) to (lc) which are connected to the microchip (8). With these sub-features of the induction strip (4), paraUele data transmissions can be carried out with multi-head readers. Fig. 7 shows a cross section through the chip card according to Fig. 6. Then the induction strip (4) is embedded in the carrier (5) of the card

8 and 9, the sections (9) made of magnetizable material are spatially arranged. That is, each section (9) extends from one side of the induction strip (4) through a meandering turn of the induction loop (1) to the other side of the induction strip (4). Due to the alternating arrangement of the turns of the induction loop (1) and the magnetizable material in the order of magnitude of the gap width of magnetic reading heads, the individual sections (9) can be magnetized. On the other hand, the information in the induction strip (4) can also be deleted by induction of an alternating field in the induction loop (1), or can be transmitted into the latter when the microchip (8) is connected. As can be seen from FIG. 8, the sections (9) made of magnetizable material have recesses (10) extending transversely to the induction strip (4).

10 shows an induction strip (4) with a continuous layer (11) made of magnetizable material, in which an induction loop (1) designed as an induction coil is embedded. The ends of the induction coil (1) are connected to the microchip (8). The induction strip (4) acts like a transmitting and receiving antenna for the middle electromagnetic range from 10 to 900 kHz. Remote data transmission, in particular the reception of information, can thus be carried out. The data are stored in the integrated microchip (8)

According to FIG. 11, the spiral-shaped turns of the induction coil (1) run around the continuous magnetizable material layer (11). The sections of the turns of the induction coil (1) which are on one side of the magnetizable material layer (11) run at right angles to the longitudinal direction of the magnetizable material layer (11). This also ensures the transfer of data using a magnetic head According to FIG. 12, rib-shaped projections (12) made of magnetizable material are arranged on one side of the magnetizable material layer (11) and extend between the turns of the induction coil (1). The layer (11) preferably consists of soft magnetic material and acts as an antenna with the induction coil (1) surrounding it. The magnetizable material (12) arranged between the turns of the induction coil (1) serves to receive and store information from a magnetic reader.

According to FIG. 13, projections (12) are arranged on one side of the magnetizable material layer (11) and offset in the longitudinal direction, so that the sections of the turns of the induction coil (1) on this side are each step-shaped by a pair of projections (12 ) extend through. This creates a continuous magnetizable layer for a reading head that scans the entire length of the induction strip (4)

According to FIG. 14, the production strip (4) is constructed in two layers, namely from a meandering induction loop (1) with magnetizable material sections (3) embedded therein, as shown in FIG. 1, and a riander-shaped induction loop (ld) arranged underneath.

In the embodiment according to FIG. 15, U-shaped sections (3) made of magnetizable material are provided in cross section. An induction loop (1) extends through the U-shaped recesses of the sections (3) and between adjacent sections (3), while the induction loop (ld) arranged below extends only between the U-shaped sections (3).

In the embodiment according to FIG. 16, the sections (3) which are embedded between the turns of the meandering induction loop (1) consist of ribs which are arranged on one side of a strip (11) made of magnetizable material.

The embodiment according to FIG. 17 differs from that according to FIG. 16 essentially in that the turns of a multilayer J induction coil (le) to (lg) are arranged between the ribs (3) made of magnetizable material. According to FIG. 18, the induction loop (1) is designed as a plane-lying spiral with right-angled windings, which is arranged on the carrier layer (5), the sections (3) made of magnetizable material extending in the longitudinal direction between the individual windings of the spiral ( 1) extend. By designing the induction loop (1) as a longitudinal coil, high numbers of turns can be achieved in one plane. The embodiment according to FIG. 19 differs from that according to FIG. 18 essentially only in that the sections (3) made of magnetizable material are low in the longitudinal direction. The parts can also be designed as magnetizable particles of different grain sizes. 20 shows a cross section of the induction strip (4) according to FIGS. 18 and 19.

21, the magnetizable material is arranged inside the spiral induction loop (1) as a longitudinally extending rod (3). This produces a longitudinal coil with a high number of turns and an antenna designed as a ferrite rod (3) in the middle of the induction coil (1), ie where the greatest induction occurs

22 and 23, the rod (3) made of magnetizable material according to FIG. 21 can also be provided on a layer (11) made of magnetizable material. According to FIG. 24, it can also be located between two layers (11) and (11a) made of magnetizable material.

According to FIG. 25, a chip card for optical and magnetic data transmission has a keyboard (13). A transmitting and a receiving diode (14), (15) are connected to the chip (8). Furthermore, as can be seen from FIG. 30, each key of the keyboard (13) is assigned a photodiode (20) to (23).

According to FIG. 29, the keys (16) to (19), the transmitting and receiving diodes (14, 15) are the chip (18) and the induction strips (4) in the recesses (24) to (31) of a frame (32 ) made of high-quality plastic.

The keyboard (13) can be used, for example, to enter a personal code to enable communication by pressing a specific combination of the keys (16) to (19). The keys (16) to (19) are padded in the form of optical switches. To this end, they are padded as an elastically deformable part of the frame (32), as shown with the key (16) in FIG

26 and 27, the light (33) is guided by total reflection (33 ') in the key (16) to its refractive edge (34), from which it reaches the photodiode (20) when the key (16) is pressed becomes. Then the edges (34) and (34 ^* ) overlap and the light is guided to the photodiode (20) in the high-gathering plastic material

Irradiation can take place by means of an integrated photodiode or from the surrounding area. Since high-collecting plastic has the property of absorbing direct or diffuse light from the environment and emitting the light into the plastic matrix, switching states can also be carried out in a low ambient light. To protect the components, the optical chip card is covered with a protective film (6)

31, the chip card has an integrated LC display (36) for displaying information. The display (36) can be designed as a DOT matrix in order to make it possible to display numbers and letters as well as graphic characters. The embodiment according to FIG. 31 shows the use of a chip card as a parking card for debiting parking times or parking values. Likewise, applications for displaying different information, such as an account balance, can also be provided.

32 shows a schematic block diagram of a microchip with a connected induction strip (4) for the transmission and storage of data. A read / write amplifier (38) for the ωduction strip (4) is connected to a central control unit (37) and can also be designed as a transmitter / receiver unit for radio signals. Furthermore, the display (36), the keyboard (13), a memory (39) for receiving information and an optical unit (40) for infrared control are connected to the control unit (37). The control unit (37) can also take over functions for encrypting data. 33 to 35, information transmitters (42) are arranged in parking spaces (41), for example in order to switch a chip card in the vehicle on and off, or to debit different values therefrom. Fig. 36 shows an information transmitter (42) with a radiation window (43) and solar cells (44). The information transmitter (42) can be accommodated in a thin tube, which may only be inserted into the ground.

In the card according to the invention with a magnetic strip in the form of an induction strip for the transmission and storage of data, the induction strip therefore has at least one induction coil and soft and / or hard magnetic materials are embedded between the turns of the induction coil. The induction coil is preferably almond-shaped and a short-circuit turn is provided with a break-open control. The induction coil is advantageously several times lower and / or provided with at least one tap and connected to a microchip.

Furthermore, the induction coil is preferably spatially formed and surrounded by a soft magnetic solid longitudinal layer made of ferrite materials.

The induction coil is then preferably configured in multiple layers and the embedded magnetizable materials on the surface have a defined gap width and form a magnetic strip.

The induction coil can be designed as a longitudinal coil, and magnetizable materials in the form of longitudinal strips or powder particles can be embedded or applied. The induction coil can surround a longitudinal strip made of ferrite materials and / or can be provided with a magnetizable layer on both sides, an antenna being built for radio waves.

Optical keys made of light-conducting and high-collecting plastic can also be provided. Infrared diodes for amplifying and transmitting data are integrated in the light-collecting plastic.

Claims

Patent claims

1. Card-shaped information transmitter with a magnetizable material, characterized by an induction strip (4) arranged in the card plane with an induction loop (1) in which the magnetizable material is embedded

2. Information transmitter according to claim 1, characterized in that the induction loop (1) and / or the magnetizable material are lined as a layer.

3. Information provider according to speech 1 or 2, characterized in that the layer from which the hiduction loop (1) is made is meandered

4. Information provider according spoke 3, characterized in that in the spaces between the turns of the meandering induction loop (1) sections (3, 9) are arranged from the magnetizable material.

5. Information provider according to spoke 4, characterized in that the sections (3) of the magnetizable material together a often undercut, in the level of the production loop (1) harboring layer (Fig.2).

6. Information provider according spoke 4, characterized in that the sections (9) made of magnetizable material each extend between the meandering windings from one side to the other side of the meandering induction loop (1) (Fig. 8 and 9).

7. Information transmitter according to one of the preceding claims, characterized in that the induction loop (1) is shorted out and / or has a SoUbruchsteUe.

8. Information transmitter according to one of the preceding claims, characterized in that the induction strip (4) on a carrier layer (5) made of plastic or is embedded therein

9. Information transmitter according to one of the preceding claims, characterized in that it has an adhesive layer (7).

10. Information transmitter according to one of the preceding claims, characterized in that the magnetizable material is a hard magnetic material.

11. Mormation transmitter according to one of claims 1 to 9, characterized in that the magnetic material consists of sections of soft magnetic material and sections of hard magnetic material

12. Information transmitter according to one of the preceding claims, characterized in that the indication loop (1) is connected to a chip (8).

13. Information provider according spoke 12, characterized in that the chip (8) can be programmed to form short circuits.

14. Information transmitter according to one of the preceding claims, characterized in that the magnetizable material is lined as a layer (11) around which the induction loop (1), which is lined as an induction coil, extends (FIGS. 10 to 12).

15. J-nformation transmitter according to claim 14, characterized in that the layer (11) made of magnetizable material has projections (12) which protrude between the sp al-shaped turns of the induction coil (1).

16. Information transmitter according to spoke 15, characterized in that the sections of the turns of the induction coil (1) on one side of the layer (11) made of magnetizable material are perpendicular to the longitudinal direction of the induction strip (4).

17. Information transmitter according to one of claims 14 to 16, characterized in that the windings of the induction coil (1) are bonded by wrapping the layer (11) made of magnetizable material with an electrical conductor.

18. Information transmitter according to one of the preceding claims, characterized in that a plurality of induction loops (LA to LG) are provided in the production strip (4).

19. Information provider according to spoke 18, characterized in that the J-induction loops (la to lc) are arranged side by side (Fig. 6) or have taps.

20. J-information transmitter according to claim 18 or 19, characterized in that the induction loops (1, ld to lg) are arranged one above the other or are spatially connected (Fig. 14, 15, 17).

21. Information transmitter according to claim 18 to 20, characterized in that the induction loops (1, la to lc) are connected to a chip (8).

22. Information transmitter according to one of the preceding claims, characterized in that the mduction loop (1) is configured as a spiral in a layer (Fig. 18 to 24).

23. Information transmitter according to claim 22, characterized in that the magnetizable material (3) is arranged between the turns of the spiral induction loop (1)

24. Information transmitter according to claim 22, characterized in that the magnetizable material (3) is arranged as a rod inside the spiral

25. J-nformation transmitter according to one of claims 22 to 24, characterized in that the magnetizable material (3), which engages between the turns or as a rod in the interior of the spiral, arranged on a layer (11, Ila) made of magnetizable material is

26. Information transmitter according to one of the preceding claims, characterized in that the magnetizable material embeds an antenna

27. Information transmitter according to one of the preceding claims, characterized in that the card has a storage battery which can be charged by a transmitter

28. Information transmitter according to one of the preceding claims, characterized in that it has a keyboard (13) to which the chip (8) is connected.

29. Information transmitter according to claim 28, characterized in that the keys (16 to 19) of the keyboard (13) are integrated by optical switches.

30. Information transmitter according to claim 29, characterized in that the card has a frame (32) made of a high-collecting and highly conductive plastic and the buttons (16 to 19) are formed by deformable sections of the frame (32).

31. Information transmitter according to claim 29 or 30, characterized in that each key (16 to 19) is assigned a photodiode (20 to 23).

32. Information transmitter according to one of the preceding claims, characterized in that the card for optical data transmission has a transmitting and receiving diode (14, 15).

33. J-nformation transmitter according to claim 32, characterized in that the transmitting and receiving diodes (14, 15) are designed as infrared diodes.

34. Information transmitter according to one of the preceding claims, characterized in that it has an LC display (36) which is connected to the chip (8).

35. Use of the information provider according to one of the preceding claims for securing goods, for identifying people and goods, for booking and billing values, as a means of payment and as an authorization card.

36. Use of the J-nformationsender according to one of the preceding claims in the K-caftfahrzeugbereich for the transmission of information from the traffic radio, as a travel direction detector, as a parking card as well as in the toll processing and when crossing the border

37. Information transmitter according to one of the preceding claims, characterized in that the J-induction loop (1) itself consists of a magnetizable material