DE19646302A1 - Digital chip card telephone - Google Patents

Abstract

The telephone includes a reading and writing unit (24) which switches a telephone (10) from a normal operation function to a function which variates from the normal operation when a valid chip card (20) is inserted. The function of the operation in the non-normal operation function is set by data stored on the chip card. Preferably, the chip card telephone includes a facsimile band separation and a modem connection for the operation of a facsimile apparatus. The apparatus includes a modem connection dependent on the data stored on the chip card.

Description

The invention relates to a digital chip card telephone comprising a read / write device for a chip card.

In DE 40 08 790 C2 a telephone network is included stationary and mobile participants described, in which the stationary participants of conventional networks each an individual subscriber line with the only one Switch are connected. The connection of the Mobile subscribers with the connection point are made via a single subscriber line to which parallel several transceivers are connected, the are assigned to a corresponding number of mobile subscribers. So that the individual assignment of a personal identifier character is created for each subscriber line uses a plug-in card with individual coding, the is plugged into each subscriber set to ent according to the coding of the plug-in card individually mark and identi from the exchange make it editable. Anyone using the intercom  Person is then due to her in any part plug-in card inserted in the relevant Subscriber set available.

In this context, the document further refers DE-PS 38 10 305.

What in particular this plug-in card with individual Coding causes, however, is not in the publication explained in more detail.

The object of the invention is a digital chip card create phone according to the type mentioned at which the phone has a desired function as needed exercises. In particular, a fax facility is to be connected be cash and / or a modem connection to operate a Modem connection.

This task is solved by a switch device, the phone from when the chip card is inserted Normal operation (function like a standard telephone) on one switches from normal operation, whose Function by ge in the phone and / or in the chip card stored data is set.

In this way, an extremely high degree of flexibility achieved for the functioning of such a phone.

According to a further development, the chip card telephone has a Integrated fax switch and / or a modem connection for Operating a fax machine or a modem connection in Dependence on data stored in the chip card.

The software and / or hardware of the smart card phone is Conveniently adjustable so that operation both digital main connections (e.g. EURO-ISDN) as well  digital private branch exchanges of different types or different manufacturers is possible.

According to yet another further development is a control provided, in particular a microprocessor control that after reading the chip card, the validity of the chip card checked against identification criteria.

According to yet another embodiment of the invention a controller is provided which a from the chip card reads out certain keyboard layouts for the phone and can take effect, what the handling of certain Use cases greatly facilitated.

According to yet another embodiment is a controller provided that data from the chip card to be monitored Is able to read out election sequences.

According to yet another embodiment, the keyboard is of the phone with a special key, which with a controller is connected such that when loading make a certain, predetermined election sequence is solved.

According to yet another embodiment of the invention a storage device is provided to store the characters monitor selected election sequence, as well as a Comparator device for comparing the selected buffered dialing sequence D and a generator Setup for a dialing sequence saved on the card if the saved dialing sequence matches, too monitoring election sequence.

According to yet another embodiment of the invention the phone shortcut key generator devices to a predetermined dialing sequence when a key is pressed  or generate a key combination. In the case is it is favorable if facilities are provided that the predetermined dialing sequence is then checked to see if it is the monitoring strings, and this by a other, e.g. B. replaced sequence stored on the chip card, but leaves the other characters unchanged.

According to a further embodiment, the telephone is modular built up.

The digital chip card telephone can have a module that an operation on a digital 2-wire connection and / or enables a digital 4-wire connection.

Furthermore, the software of the phone or the module adjustable so that operation on both digital Main connections (e.g. EURO-ISDN) as well as on digital Extension lines (e.g. behind telecommunications line locations (PBXs) from different manufacturers) is possible.

According to yet another embodiment, the chip card is combined with a SIM module.

The invention is illustrated by means of exemplary embodiments explained, which are shown in the drawings.

It shows:

Figure 1 is a smart card phone from the education according to the invention in a plan view. including an associated smart card;

FIG. 2 is a block diagram representation of the operation of the digital chip card telephone;

Fig. 3, the integrated smart card phone according to the invention.

In Fig. 1, a digital smart card phone 10 can be seen in plan view, which may have the shape of a conventional table device, for example consisting of a Grundge housing 14 with a handset 12 , keypad 16 and a slot 18 into which a credit card-sized chip card 20 are inserted can, which chip card carries a digital memory chip 22 , as well as suitably arranged electrical contacts 24 , which come into electrical connection with the inserted card with corresponding connection contacts in the phone.

These contacts establish an electrical connection to the chip 22 , in order to read out data from the chip 22 with the aid of corresponding functional devices within the card telephone or to store it in this chip card.

Instead of the read / write device described above can also those with opto-electrical devices be provided, or the reading and enrollment of data using magnetic stripes.

Within the phone, a switching device 26 is seen before, which is shown in Fig. 1 only as a block with the control of the inserted chip card, the phone from normal operation, in which the phone works like a conventional standard phone, on a different from this normal operation Operation can be switched, the function of this operation deviating from the normal function being determined by either data stored in the telephone or (and) data stored in the chip card. The relationship is again explained in more detail in the form of a block circuit diagram in FIG. 2: by linking the inserted chip card 20 with the read / write device 24 , the chip card is read and the chip card content is evaluated, if necessary, to determine whether it is a chip card approved for this telephone acts. If the chip card is valid, further information can be read from this chip card, or data can be written in according to predetermined process sequences. Under the control of this data, a switch device 26 is then operated, which can control the function of the telephone at 28 in such a way that it either works like a normal telephone or as a telephone that has special properties.

For example, the keyboard layout 30 could be modified such that when certain digits are pressed, the corresponding digit is not dialed, for example for outputting a corresponding number of pulses, but instead of this single digit a sequence of digits (dialing sequence) is triggered. Which digits follow, for example, is linked to a respective key here can be defined in a memory 32 , or else in the memory chip 20 .

In particular, the chip card telephone 10 could have an integrated fax switch 11 , and at the same time or alternatively a modem connection 113 (connection for a modulator-demodulator device) in order to operate a fax machine and / or depending on the data of the chip card 20 Establish modem connection.

The software and hardware can expediently do so be set to operate on both digital Main connections (e.g. EURO-ISDN) as well as on digital Extension lines behind various PBXs Manufacturer is made possible.

This is particularly cheap. Context a functional wise, on the chip card a certain amount of money is "saved". This is the case with fax or telephone operation "Cash account" continuously charged with the fees. Is  the stored amount of money consumes the chip card phone automatically connects.

The various functions of the telephone can expediently be controlled by a microprocessor, for example by the microprocessor controller 34 which can be seen in FIG. 2. Such a microprocessor control is particularly well suited to checking the data present after the chip card has been read in to determine whether certain identification criteria are met. Likewise, the microprocessor control could ensure that a certain keyboard layout is read out of the chip card, which then becomes valid for the keyboard of the telephone. On the other hand, the microprocessor controller can also monitor the telephone with the aid of a memory 32 or a memory 36 to determine which dialing sequence the user has entered into the keyboard. This entered dialing sequence can then be stored in the buffer, and this dialing sequence can then be compared with further stored dialing sequences. This makes it possible to filter out certain dialing sequences or parts of dialing sequences and replace them with others, for example if, as a result of the network areas connected to the telephone, he does not need the usual digit sequences, but only modified numerical sequences. This can be the case if the network is switched to another network. A pulse generator 38 can be provided, for example, to generate such modified character strings, as shown in FIG. 2. Such predetermined dialing sequences can also be monitored in the event that dialing sequences are automatically generated by the telephone when a key or a key combination is pressed. If these dialing sequences occur, they may be replaced by other character strings, which are either stored on the chip card or have been previously specified. Only the strings to be monitored are replaced by the saved sequence, while the remaining characters can be left unchanged.

The arrangement is thereby in the structure and in the way of working extraordinarily simple and yet flexible.

The chip has proven to be particularly advantageous to combine the card with a SIM module because it creates a Switch assembly that is inexpensive to build arises practically all modes of action as described above were realized.

In Fig. 3 is a card phone of FIG. 1 shown in connection with different networks, for example, is a card telephone 10, controlled by a "smart card" 20 via a data link 50 (such as a telephone line) ver with a so-called switching network 52 connected, which is also called "Service Switching Point" (SSP). Further lines 54 lead to this switching matrix, for example to the network of Deutsche Telecom AG ( 56 ), via which other telephone systems 110 can be reached. Via the Deutsche TELECON, for example, a mobile radio network can then also be reached, for example the mobile radio switching center 60 designated MSC, from which a connection is established to the radio station controller 62 , BSC, which in turn is connected to radio base stations BTS, 64 . From these radio base stations BTS, 64 , wireless radio telephones or cell phones 66 can then be addressed. Shown in FIG. 3 are still distributed service control points with which the various network areas are linked to one another, see the reference numbers 68 , 70 . These are then in turn connected to further switching networks 152 , where either further private connections 210 are connected directly, or else via larger telephone systems 72 , for example in a hospital (PABX). These different telephones in turn may be controllable with chip cards.

The chip card phones and their control by the chip card now enables ver different sequences of digits for the different telephone to generate nets by normally being from the Operator entered numerical sequences by for the ent speaking networks replace the required sequences of digits. The Operator therefore does not have to use the different digits know the individual networks follow for their function need, but practically only chooses the one for they usual digits, with the modification to the not Agile sequence of digits is done by the chip card.

The chip card can also be a cash account or fees have impulse account when operating the chip card phones will be charged by the fee impulse until the Account balance (or line of credit) has run out. In At this moment, the smart card phone could connect interrupt and prompt the user to use his smart card refill in the appropriate manner, d. H. by Payment of a certain amount of money to the issuing company the chip card cause the data content of the chip Change the card so that a "digital" credit amount is available again.

Claims (13)

1. Digital Chip card phone (10) comprising a read / write means (24) for a chip card (20), characterized by switch means (24) connecting the telephone (10) (with an inserted valid chip card (20) from normal operation function as a standard telephone) switches to an operation that differs from normal operation, the function of which is determined by data stored in the telephone ( 10 ) and / or in the chip card ( 20 ). 2. Digital chip card telephone according to claim 1, characterized in that the chip card telephone has an inte grated fax switch and / or a modem connection for operating a fax machine n which has a modem connection depending on data stored in the chip card ( 20 ). 3. Digital chip card telephone according to claim 2, characterized characterized in that the software and / or hardware the  Smart card phones is adjustable so that a Operation on both digital main connections (e.g. EURO-ISDN) as well as at digital extensions conclusions behind telecommunications systems Licher type of construction or different manufacturers possible is. 4. Digital chip card telephone according to one of claims 1 to 3, characterized by a (microprocessor) control which, after reading in the chip card ( 20 ), checks its validity on the basis of identification criteria. 5. Digital chip card telephone according to one of claims 1 to 4, characterized by a controller ( 34 ) which reads out a specific keyboard layout ( 30 ) for the telephone ( 10 ) from the chip card ( 20 ) and can be effective. 6. Digital chip card telephone according to one of claims 1 to 5, characterized in that a controller is provided which is able to read out data for dialing sequences to be monitored from the chip card ( 20 ). 7. Digital chip card telephone according to one of claims 1 to 6, characterized in that the keyboard ( 16 ) of the telephone ( 10 ) comprises a special key which is connected to a control system in such a way that when it is actuated, a specific, predetermined dialing sequence is triggered . 8. Digital chip card telephone according to one of claims 1 to 7, characterized by a storage device ( 32 ) for storing the characters of a selected dialing sequence to be monitored, and a comparator device for comparing the selected, temporarily stored dialing sequence, and by a generator device for a stored on the card Dialing sequence if the saved dialing sequence matches the dialing sequence to be monitored. 9. Digital chip card telephone according to one of claims 1 to 8, where the phone is a shortcut key generator has directions for generating a predetermined Dialing sequence when pressing a key or a Key combination, characterized in that the predetermined election sequence is then checked whether it has strings to be monitored and these by another, e.g. B. stored on the chip card Sequence replaced, but the other characters unchanged leaves. 10. Digital chip card telephone according to one of claims 1 to 9, characterized in that the telephone is modular is constructed. 11. Digital smart card telephone according to claim 10, characterized characterized in that a module is provided which one Operation on a digital 2-wire connection and / or on enables a digital 4-wire connection. 12. Digital chip card telephone according to claim 11, characterized characterized in that the software of the phone or Module is adjustable so that operation both on digital main connections (e.g. Euro-ISDN) as also on digital extension lines (e.g. behind TX systems from different manufacturers) is possible. 13. Digital chip card telephone according to one of claims 1 to 12, characterized in that the chip card with a SIM module is combined.