MXPA97006761A - Games token with integrated electronic data substrate - Google Patents

Abstract

The games token (1) has an integrated electronic data substrate with a processor (11), store (12) and aerial (15) for transmitting r.f. signals (20), surrounded by an electromagnetically transparent housing section (2). The store contains permanent and uncopiable master data (14). To the token is allocated a decentralised, autonomous write read station WR by means of which information can be read out from and written into the data substrate MI, which is initialised by an authorisation system. At every identification process the write read station WR generates new initialisation data (21) which are transmitted to the data substrate MI, linked there with a code (22), returned to the write read station and decoded and examined there. This provides a trully unforgeable games token which can be used in any kind of games installation and ensures trouble free play.

Description

GAME SHEET WITH INTEGRATED ELECTRONIC DATA CHARGER The present invention relates to a gambling chip or bet having an integrated electronic data charger according to the exordium of claim 1, as well as to stations for verification of said chips according to claim 15 and an installation with said tokens and stations according to claim 19 and a method for initializing a token in gaming facilities according to claim 22. When tabs are used in gaming facilities of any type, an essential problem is to prevent their incorrect use and falsification. The need to increase security becomes increasingly important and urgent with the increasingly widespread appearance of games and gaming facilities. This should also be possible to carry out in a way Titas "rational and reliable subsequent operational functions such as the identification and verification of chips, exchange, automatic classification, etc. The Literature reveals numerous proposals to increase security in games and to improve For example, the European document EP 424,355 describes an apparatus for classifying cards in game tables, according to which means of optical identification of color and reading head, for example using sensors of the CCD type, the value of a token can be established according to its color and in this way automatic selection is made possible The British document GB 2.174.228 describes a method and apparatus for chip selection, which by means of inserts of electrically conductive material or magnetic on the card produces an inductive or capacitive signal in the sorting station, where it is measured by me However, with these chips and classification stations only gross distinctions can be made with respect to the value of the chips. Therefore, fakes can not be detected. Neither is adequate security provided for other tab identifications, for example, using magnetic strips or barcodes for "laser" reading, because these tokens are relatively easy to copy and therefore forgery. Additionally, said detection methods are too complex, unreliable and prone to environmental influences such as dirt and wear of the identification means, etc. Another proposal is known from the European document EP 436,497, which describes a thermoplastic production process for round tokens for use in gaming machines or bets, with or without integrated transponder. The version of "tfahs Ondedor- with transmission" without contact "of encoded information has a transponder preferably with two different types of antenna, that is to say an electrostatic antenna and a magnetic antenna (US 4,818,855). "contactless" manner in a gaming machine and verify the value of the card, however, this requires a precise and precise positioning of the card with respect to the reading station in the gaming machine or slot machine, for example, the This positioning should be accurate within a few millimeters.This well-known transponder card requires a relatively complex, multi-part and therefore expensive structure with charging elements, plastic rings, different antennas, separate transponder, connections, etc. Additionally, this structure it is only suitable for round tiles that are introduced in slot machines or slot machines, and not for chips of other sizes, form and uses, for example, for flat tiles as well as rectangular ones, for higher value game tables. To be able to identify and verify various cards with different shapes, sizes and values in different games, it would be necessary to have a greater range of communications, for example at least a few centimeters instead of a few millimeters. Additionally, the known chips are not really proof of falsifications, because it is still possible to intercept communications, make copies and therefore produce false chips (magnetic tape effect). This information does not allow the production of chips of higher values and proof of falsifications. Another important disadvantage is that in the known cards with transponder a central computer unit is required, which contains the data base ^ -for the verification -of-odes-the-s -fichas. In case of a failure in the central computer unit the whole game would fall, which should not happen. A further limitation of these transponder cards is that their values can not be varied, that is, they can not be reassigned. This hinders the execution of bets of different value, that is, there where the value of a chip can be set at different levels. In this way, although these known tokens make counterfeiting more difficult, they can not lead to the prevention of counterfeiting, particularly in the case of chips of higher value. Therefore, the problem of the present invention is to provide a token, which has a convenient and simple construction, requires little energy for chips of little value, but which offers excellent protection centers counterfeits for chips of higher value. In addition, this chip must be universally usable in all games of a casino, so that all gaming operations can be carried out with these highly tamper-proof chips. In this way, the sheet of 5 according to the present invention must be suitable for all conventional formats, configurations and values, must be verifiable at a certain distance and must allow a simple and rational manipulation in associated verification and classification stations. It must be possible too verify the card in a decentralized manner by the associated stations, without a necessary connection to a central computer in order to ensure a generalized high security of operation, so that the complete operation of the game is not impaired in case of an eventual or probable failure of a station and also have to be implementable fixed-value tokens and also tokens of variable value. - - - This problem is solved by means of a card according to claim No. 1. As a result of the construction of the card with a data charger highly intested with non-copiable data-pattern, it is ensured that from the point of view of the team the card can not be reproduced, that is, copied. With the initialization of the data loader through an authorization system and which is necessary for the operability, it ensures the non-operation of an unauthorized file. By communicating new initialization data combined with the encrypted stored stored code, it is ensured that the communication is not interrupted and transmitted by copying over another data loader. (impossible magnetic tape effect). By combining these features in accordance with the present invention, maximum protection against counterfeiting is achieved in a relatively simple manner. The construction with a simple antenna for all functions is simple and allows a relatively large area of antenna in the surroundings, with an electromagnetically transparent cover, so that a relatively large range of communications can be obtained. The associated decentralized read-write stations allow a reliable, autonomous operation without the need to connect to a main computer structure. In addition, through the possibility of writing in a data loader, it is possible to change values in the file when necessary. As a result of the characteristics of the card according to this invention, in conjunction with the associated decentralized read-write WR units, it is possible to implement stations for verification according to claim 15 and stations for classification according to claim 17, the four satisfy the maximum security requirements described. The method for initializing a token according to claim 22 is ensured by a hierarchical authorization arrangement, so that the MI data chargers or unauthorized or false tokens can not be entered into the gaming system. The subclaims refer to advantageous developments of the present invention, in order to obtain particularly long ranges with relatively large antenna areas. Through the high integration on a printed circuit and through the use of EEPROM memories and ASIC circuits it is possible to produce particularly compact, efficient and cost-effective chips. Through the simultaneous transmission of energy and information with radio frequency signals a particularly efficient communication is achieved, as well as transmission of information in one direction by modulation of pulse duration and in the other direction by charge modulation, which is particularly advantageous . Additional security aspects can be achieved through the use of each new random number and through the integration of sum controls. According to claim 19 it is possible to implement complete facilities for gaming casinos, where different tabs can be processed by several WR read-write stations associated, autonomous and decentralized, which are fully autonomous operable and additionally connectable to a unit central computer, which allows additional functions and evaluations. As a result, the operation of a gambling house or casino is in no way blocked by a ~~ prsbabi-e- "fiaLtla or -defect in a central processing unit.

Decentralized reading-writing stations ensure a continuous and unrestricted play, which is a particularly important requirement. The present invention is described in greater detail hereinafter in relation to the accompanying examples and drawings, wherein: Figure 1 shows schematically a chip according to the present invention with a data charger MI and an antenna. Figure 2 shows a WR read-write, associated, decentralized and autonomous station. Figures 3a-b are examples in two views of a chip with an antenna. Figures 4a-f are additional examples of tokens of different types and different antenna arrangements.

Figures 5 and 6 show the function and communication sequence between an MI data loader and a read-write WR station. Figure 7 is a tab verification station. Figure 8 is a tab classification station. Figure 9 is a tab value change station. Figure 10 is a game installation with stations having different functions. Figure 11 shows a casino with different stations, game points and different game points. Figure 12a, b shows the concept of hierarchical system authorization for all tabs and all read-write stations associated with organizational levels. Figure 13 shows the production of chips you did not copy with an MI data charger. Figure 1 - "schematically" shows a stake or game token or bet or chip 1 according to the present invention with a passive, integrated MI data charger, whose operating energy is emitted by the WR read-write station and collected by means of a radio frequency antenna 15. The data charger MI has a highly integrated special circuit (chip) with a processor 11, a data memory 12 (for example an EEPROM type memory), as well as the control electronics 13. The control electronics 13 with processor controls the entire exchange of external and internal data and encodes the transmission data and decodes the received data and contains all of the radio frequency parts for powering the antenna 15, including the preparation and clock synchronization for reception of energy and data from the transmission WR station.

Antenna 15 may for example have a two-part construction, as shown in Figure 1, or may consist only of a closed loop, for example as shown in Figure 3b. A charging capacitor 17 (which may also be integrated in the special chip circuit), is used to couple the transmission intervals of the read-write WR station. The arrow 20 indicates the radio frequency communication with the write-read station WR (FIG. 2). The data charger MI contains an invariable system program with security functions such as control of summation of CRC values and encrypted algorithms 22, as well as in a part 12.1 of a fixed data memory, invariable master data with a unique number 14 The memory 12 • also contains a part 12.2 for desired applications. freely programmable as well as a part 12.3 of memory of variable values. Due to this construction, the tab according to the present invention with the data charger MI can not be read, modified or copied from the outside. Figure 2 shows schematically an autonomous, decentralized and fully functional station for communications without contact with the card 1 and associated therewith. The read-write station has a security module 25, a separate transmitting and receiving antenna 24, a power supply and an additional interface to a master computer 65. The security module 25 contains all the communication functions with the charger MI data of the tab. This includes radio frequency preparation, encryption and verification of data for a correct transmission (CRC), verification of the authorization to read and write a particular file through the read-write station, as well as communications with a central computer. The security functions include the encoding and decoding 22, 23 of the data, identification of the MI data loader, authorization of writing authorization, as well as the calculation and monitoring of the sums of values (CRC) for error-free transmissions. The communication sequence between the data charger MI and the read-write stations WR will be explained below with reference to figure 6. Figures 3a and 3b show in two views the structure of a card 1 according to the present invention with an MI data charger, an antenna 15 a charging capacitor 17. These components preferably have a one-piece construction and for this purpose the MI data charger with charging capacitor and antenna is for example placed on a printed circuit board. As can be deduced from Figure 3, the antenna surface can be particularly large. In principle, virtually the entire chip surface is available. The antenna 15 is surrounded on both sides by a magnetically transparent cover 2. In the case of the present invention, only one radio frequency antenna is required and this enables all the functions to be performed, that is, the reception of energy and information, as well as the transmission of information to the WR read-write station. . Thus, this antenna can have a relatively diverse construction and in particular can have a large area, using in principle the entire surface of the chip. This leads to two decisive characteristics, namely a wide range W of several centimeters to several decimeters due to the large antenna, as well as a large angular space W, in which communications can take place, as well as a substantial independence of the relative position of tab 1 and the WR read-write station. This is in complete contradiction with the prior art of European document EP 436,497, in which a transponder is used having two antennas, that is an electrostatic antenna and a magnetic antenna, which must be positioned very accurately and close within millimeters. to its counterpart in order to allow a communication. This is only possible in slot machines or "traga onedas", where it is only necessary to read round, rotationally symmetrical chips and antennas of a specific size and in a precisely defined location, such that in this case both antennas must be positioned accurately and very close Therefore, this known construction of transponder and antenna is not usable for all types of chips with different formats and sizes and in particular for gaming tables. Figures 4a to 4f show examples of possible chip formats, ie, circular, round, rectangular and polygonal, with different antenna arrangements 15. In all cases it is always possible to integrate a relatively large antenna area 15 within a chip as well as allowing a wide range of communication. As shown in Figures 4a and 4b, preferably the minimum antenna diameter DA, or DAI in the rectangular box, is at least as large as half the minimum diameter DJ or DJ1 of the chip. Preferably, the minimum diameter DA or DAI of the antenna is at least 20 mm. Figure 4c shows the antenna surface FA, which is covered with the antenna loop 15, in relation to the surface FJ of the chip. Preferably, the antenna surface FA is at least as large as half the surface FJ of the chip.

Figure 5 illustrates the communication 20 between a read-write station WR with the security module 25 and the data charger MI or card 1. The necessary field of radio frequency electromagnetic energy 20a (for example with a carrier frequency of 13). Mhz) together with the modulated one on the information 20b, is transmitted from the read-write WR station to the data charger MI, where said field energy is collected by the antenna 15 and used to operate the passive data charger MI and to transmit the encoded information 20b to the WR station. A particularly rational execution of this information transmission comprises the modulation of a carrier frequency in one direction, for example from the read-write station WR to the data charger MI by pulse modulation and in the opposite direction from the charger MI towards the WR station by means of load modulation. Figure 6 illustrates a non-interceptible sequence of this communication between the read-write station WR and the data charger MI. As soon as an MI data loader enters the field of a read-write WR station, the synchronization sequence of the WR station and the MI loader automatically starts. For each new identification process the read-write station WR produces a new initialization data 21 (for example in the form of a random number) and transmits it to the MI loader (20.1). Here is a link of said initialization data 21 with an encrypted stored code 22 of the data loader. The resulting encoded moon access key) is then retransmitted to the read-write station (20.2). Finally, this information is decrypted and verified (23) in the security module (25), that is to say it is decoded with the code (22) also stored in the station WR and compared with the original, random initialization data (21). Based on this result, the WR station can identify which type of MI loader is involved. Subsequently and without interruption there may be a synchronized communication (20.3) between the read-write station WR and the data charger MI. With this method the clock generators and code generators of the WR station and the MI charger are synchronized. When a communication process has been completed or cut, each new communication can start again with new data of micialization 21. A recording of the transmitted data and the subsequent introduction into the field is not possible otherwise, because the initialization data 21 they are no longer valid. As a result, counterfeits of the operation of the card can not be made. - Additionally, the transmitted data is verified by a CRC, that is, by means of a sum control of values, in which usually the data is linked with standard data of the data charger MI. Therefore, incorrect data transmissions are prevented. This is particularly important, if MI values exchanged through authorized read-write stations are entered into the data loader and the newly entered data is verified before validation is obtained. With this sequence of communications of the card according to the present invention, it is ensured that there is no possibility of an interception of the communication being misused to produce counterfeit tokens. Figure 7 shows a verification station 30, which comprises a decentralized, stand-alone WR read-write station and a separating device 35 in which randomly fed Tokens 1 are individually separated, then each token is individually detected and simultaneously read and verified through the reading-writing station. On the basis of the result of this verification the cards are placed in one of the following three categories: genuine (31), falsified (32) or does not respond to identification (33). For security purposes, categories 32 and 33 can be verified again and then it can be clarified if it is a forgery or fraud attempt, or a defect of the MI data charger in the file, in order to take the corresponding measures. The importance here is also the large communication range R (Fig. 3a) obtainable within the secured communication that can take place between the antennas 15 and 24 of card 1 and the read-write WR station, which can be de-tfari-os decimeters, for example from 20 to 80 cms. Another important function is fulfilled by an automatic sorting station according to Figure 8. A supplied quantity of 1 disordered tokens, of different types and having different values are firstly separated according to Figure 7 (35) and verified by a WR read-write station, any falsified counter being detected and separated (32, 33). The genuine chips (31) are then transported within a sorting device 45, where each chip, according to its predetermined value, is placed in associated stacks 46.1, 46.2 and 46.3. The station 40 makes it possible to quickly and automatically select the chips that have different values and formats, so that for example in game tables with a large circulation of chips the game can be maintained uninterrupted. Figure 9 shows a value change station 50 comprising a separating device 35 and a special WR read-write station with capacity for changing values for special, associated tokens, which are also programmed to change values and for this purpose they have a memory of variable value 12.3, which can be written with a variable value through stations of change of value 50. Although in the games are used mainly cards with clearly defined, visible and fixed values, even there can be used chips with change of values, which offers important advantages and can encompass "many additional applications." 1. Fixed-value cards, which must keep clearly the same value during the -supper season be verified when returning to the cashier and then set the value 0 to store them and then, at the time they are issued, they are reloaded with the set value. Alor fixed only acquire their valid value during the regular game and are invalid out of scope and time of game and therefore lacking value. In this way, a theft of these cards is useless, for example if it is stolen from the safe, it would be meaningless. 2. Another use is in games with change of value, in which for example the chips of the same color are assigned to each player and he himself can set the value of his particular chip color and still give him a new value for each new game. This value (1.0, 1.1, 1.2, 1.3) is correspondingly entered again in the memory of values 12.3 of a card by the exchange station of values 50. 3. Another application refers to chips or value cards, which are loaded with a specific monetary value and can be debited from the value 0 to points in consumption (65, Figure 11) to obtain different services, which in casinos could be for example, a restaurant, bar, kiosk, shops, perfumeries, etc. . 4. Another variant, such as an "account values card" in game value areas 66, would be for said account 12.3 of the personal account card by means of special 50 exchange rate stations for constantly accumulated debits and profit credits. The access condition for each game value area 66 (Figure II) would be a credit account appropriate to the 12.3 value memory at least corresponding to the bet. Conveniently a range of allowed value, -is- predetermined by the memory of values 12.3, only positive values, that is, not owing values over an assigned maximum. In principle, the higher the value of a chip or higher is the maximum possible value in a memory of variable value 12.3, the greater the security requirements with respect to attempts of forgery and fraud. However, most chips have low values. Most of the chips in circulation are of the lowest place value, for example for slot machines. An important problem related to the present invention was to create a novel system of cards with which it is possible to provide all types and values of chips in all uses as well as be universally usable in all casinos, being then the chips of lower value so easy and economically manufacturable, that their manufacturing costs are not greater than the minimum value of the card, but while at the same time satisfying said requirements of high security and allow the production of chips against counterfeits of the highest. This has been possible for the first time with the card according to the present invention. In this way, it is possible on the basis of the same principle to produce chips of one class of low value for chips of lower value and chips of a class Ib of higher value for chips of higher values, being the highest value additionally equipped with large memories, additional and more complex codes, larger antennas, etc., and which, by means of correspondingly programmed read / write WR stations, can • be monitored more carefully, in order to further increase protection against counterfeiting . Figure 10 shows a game installation -60-- with cards 1 and numerous central read-write stations WR 30.1, 30.2, 30.3, in classification stations 40.1, 40.2, 40.3, and stations of change of values 50.1, 50.2, including debit stations 55. In addition to their decentralized functions, these stations or the read-write stations WR are here once more connected to a standard computer 75. This allows additional functions for the entry of later programs, for detection, evaluation and subsequent processing of operation data of the various WR read-write stations and also of the 1 chips used. These functional stations 30, 40, 50 are used, according to Figure 11, in different points of a casino 60, for example in the cashier of the entrance, in the boxes of tokens or coins of cash 62, in tables to game 63, in slot machines 64 and to several points of consumption 65 with debit stations 55. As an example, it is illustrated here that chips of two different kinds can be used, ie chips of low value those of slot machines 64 and chips of high values in game tables 63 that have high bets and in the form of value card tokens at 65 points of consumption and in areas of game value 66. This illustrates once again that the tokens 1, the, Ib, lc according to the present invention are universally usable in casinos and gaming facilities, which until now were not possible with known tokens. Figure 12a illustrates the hierarchical authotion concept A, which is valid for all • the MI data loaders and all read-write WR stations, as well as all AMI authotion loaders and WRI programming stations of the provisions and which have levels or platforms of hierarchical organization (OLO, OLÍ, OL2, OL3, OL4, etc.). The highest platform, organization level OLO, corresponds to the platform of the provision, that is, the owner 10 of the complete system. The next lower platform OLI corresponds to different, independent users 101, 102, 103 of the system, for example, different casino companies. The next smaller platform OL2 corresponds to different uses 101.1, 101.2 of a user 101, for example, different casinos of company 101. The next platform OL3 corresponds to different areas of one use, for example area 101.11 of casino 101.1 and area 101.21, 101.22 of casino 101.2, for example in the form of different stations, types of games, etc., within a casino. The next platform 0L4 corresponds to different sub-areas of 101.21, 101.22 (= 01.3) for example 101.211, 101.221 (in 0L4), etc. This hierarchical authorization provision ensures that different users 101, 102, 103 can not in any way influence each other, but a particular user, for example 101 can freely determine the organization of their area, ie as from 0L2. Thus, authorization provision A must be maintained at least until and with the OLI platform. This is illustrated by the separation line 70 in Figure 12. This guarantees that misuse is also possible from this side, for example with chips from another casino company. (because chips 101 are not usually assigned in 102 and 103). With each step down from an organization platform 0Ln to 01n +? in this organization provision -e-1- oder of each data loader is restricted, so that it can only be applied downwards, that is to say for larger number organization platforms. As illustrated by FIG. 12b for this purpose in the MI data loader of a particular organization platform, all the data of the highest organizational platforms are necessarily written previously, that is, it is quasi-inherited. For each minor organization platform 01 -.-. a part of additional memory is written in a fixed manner in the memory 12 and simultaneously all the data of the largest organizational platform OLn are taken. In this way, successively, for example, 10, 101, 101.1, 101.11 are written to the memory portions of the organization platform OLO, OLI, 0L2 and 0L3. This principle becomes clearer in Figure 13, which illustrates the production or initiation of tokens with MI data chargers. All the data chargers of the arrangement must be produced as a slave means 72 by means of a master means 71 (such as the AMI data charger) and a special program read-write station WR. On a new unwritten data charger MI of the set-up a set of non-erasable basic data are necessarily and additionally transferred to the slave means 72 of the master mode 71, ie inherited or printed. This takes place in accordance with the rules of provision A of hierarchical authorization. The MI data loader produced (as slave means 72), it is also initialized by the master means 71 as the authorization data charger TO ME . This initialization is a prerequisite for the use of the AMI data loader assignment and therefore of the 1 tab in the provision. Only the initialized MI data loaders are assigned as valid by the read-write WR-read-write WR-d. The maximum level of security achieved with the card according to the present invention can be listed as follows: Each card with data loader contains a fixed, non-copyable and unreadable program with coding algorithms, as well as invariant master data, non-copiables, with a unique number. The MI data loader can not be copied, the copying of all the data from one data loader to another is not possible and the reproduction of a data loader is also impossible. The transmission of data from the read-write WR stations to the MI data loader is protected by encrypted and readable and non-copyable algorithms.

A recording of the transmitted data and the subsequent feeding is again impossible, because a new sequence of random numbers is produced for each identification process. The consistency of the data is assured, because the transmission errors are detected by the control of CRC sums and the new data entered is verified by an acknowledgment. The hierarchical authorization system guarantees that different users of the provision can not influence each other. Thus, a counterfeit-proof and more cost-effective card is created, which is universally usable in gaming facilities of all types and guarantees trouble-free operation.

LIST OF NUMERICAL REFERENCES 1. Game card la. Lowest value Ib. Highest value lc. Card value card 2. Electromagnetic transparent cover 11. Processor 12 Memory 12.1 Fixed value memory part 12.2 Variable memory part 12.3 Variable memory value 13 Control electronics 14 Standard data with original value 15 Antenna 16 Printed circuit card (IC ) 17 Load or support capacitor 20 Radio-frequency signals of 20.1, 20.2 and 20.3q Communication sequence 20a Power transmission WR-MI 20b Information transmission MI-WR 21 Initialization data (random number). 22 Code encrypted in MI 23 Decrypted in WR 24 Antenna WR 25 Security module 30 Verification station 31, 32, 33 Verification categories 35 Separation station 40 Sorting station 45 Stack 50 Value change station 55 Debit station 60 Casino / game installation 61 Treasury entry 62 Chip and cash box 63 Gaming tables 64 Slot machine 65 Consumer points 66 game value areas 70 Separation line 71 Half pattern 72 Half slave 75 Master computer 10 Proprietary system 101 , 102 Different users 101.1, 101.2 Uses of 101 MI Data loader, means of identification AMLLL Verification data charger - - - WR Read-write station WR1 Read-write station for CRC programming Control of sums A Authorization system OLO, OLÍ OL2 Organizational levels DA, DAI Antenna diameters DJ, DJ1 Tab diameters FA Antenna surface FJ Tab surface W Scope angle for communications R Scope of communications Having thus specially described and determined the nature of the present invention and the manner in which it is to be put into practice, it is claimed to claim as property and exclusive right:

Claims (23)

1. CLAIMS 1. A game card with electronic data charger, integrated, characterized in that said card has a passive data charger with processor, electronic control and memory, as well as an antenna for the transmission of radio frequency signals, surrounded by both sides by an electromagnetically transparent cover having the memory data invariable, non-copyable, with a unique number, and wherein the card is associated with at least one read-write, decentralized, autonomous station, with which the data charger it can be read and written, the data loader being initializable by means of an authorization provision and that for the free communication of contact between the data loader and the read-write station in each identification process from the read-write station it is produce and transmit new initialization data to the data loader, which are linked there with an encrypted stored fixed code of the data loader and in this encoded form are retransmitted to the read-write station, where said information is decrypted and verified in a security module of the read-write station and subsequently there is a synchronized communication between the read-write station and the data loader.
2. 2. A card according to claim 1, characterized in that the minimum diameter of the antenna is at least as large as half the minimum diameter of the card.
3. 3. A card according to claim 1, characterized in that the minimum diameter of the antenna is at least 20 mm.
4. 4. A card according to claim 1, characterized in that the antenna has a surface corresponding to at least the surface of coverage of the card.
5. 5. A card according to claim 1, characterized in that the antenna (15) and the data loader are constructed in one piece.
6. 6. A card according to claim 1, characterized in that the antenna and the data charger are placed on a printed circuit.
7. 7. A card according to claim 1, characterized in that the data loader has an EEPROM memory and an ASIC circuit.
8. 8. A card according to claim 1, characterized in that energy and information are transmitted simultaneously from the read-write station to the data loader with the radio frequency signal.
9. 9. A card according to claim 1, characterized in that the transmission of information in one direction takes place by modulation of pulse duration and in the other direction by modulation and charging.
10. 10. A card according to claim 1, characterized in that a new random number is produced as initialization data for each identification process.
11. 11. A card according to claim 1, characterized in that the data loader contains a sums control, in which the useful data is linked with data standard of the data loader.
12. 12. A card according to claim 1, characterized in that the data loader has a variable data memory, which can be written and therefore varied by an authorized read-write unit.
13. 13. A card according to claim 12, characterized in that the memory of values can be loaded with a specific monetary value through specially authorized read-write stations, said values being debitable by read-write stations subsequently authorized as debit stations. in points of consumption up to a maximum above the value 0.
14. 14. A file according to claim 12, characterized in that the memory of values can be varied up to a maximum value by means of read-write stations in areas of value games by means of debit and accreditation and the value of the -memory of securities is verified as a condition of access to the areas of value play.
15. 15.- A station for verification of game tokens according to claim 1, characterized in that the station has an autonomous, decentralized read-write unit and a separating device, so that the fed cards are individually detected and simultaneously read and verified by the read-write unit.
16. 16. A station according to claim 15, characterized in that with the verification there is an association of the cards with one of the following three categories: genuine, falsified or does not respond to identification.
17. 17. A station according to claim 15, for verification and classification of tokens, characterized in that the value of the token is established in the read-write station and then the tokens are subsequently placed by means of a sorting device in a stack. which has the same value.
18. 18. A station according to claim 15, characterized in that the read-write unit has the capacity to change values in a predetermined range.
19. 19. An installation for gambling casinos with several chips according to claim 1 and with several associated, autonomous, decentralized read-write stations which can be connected to a central master computer, and can be evaluated by it.
20. 20. An installation according to claim 19, characterized in that the read-write stations are positioned in different locations such as entrance to an entrance cashier, chip boxes and money coins, gaming tables, slot machines and points of consumption and are used with "" different "" functions, such as verification stations, rating stations and / or stock exchange stations.
21. 21. Installation according to claim 19, characterized in that the chips are subdivided into a class of higher values and a class of lower values, having the chips of higher MI data chargers with large memories, antennas and / or more complex codes and therefore a greater security against counterfeits than the chips of lower values.
22. 22. A method for initializing a game card according to claim 1, characterized in that a hierarchical authorization provision is established valid for all the data chargers of the card and for all the read-write stations, each charger having to be of data initialized before use, so that it is recognized as valid and authorized in the read-write station and the data loader is initialized by means of a special authorization data loader and a special programming read-write station .
23. 23. A method according to claim 22, characterized in that each data loader of the system as a slave means must be produced by means of an authorization pattern data loader as a standard means and is necessarily transferred to the slave means (inherited). basic data set of the average pattern unable to be further varied.