DE19624762A1 - Procedure for monitoring access authorization in a radio receiver and radio receiver - Google Patents

Abstract

The proposal is for a process for monitoring the right of access in a radio receiver. In the process, specific data on a telephone card (70) inserted into the receiver, which serves in particular to allocate a call number to a telephone system and/or to provide entitlement to the use of network services via the telephone system, are read out in the radio receiver. The right of access to the telephone card (70) is checked by means of the data read out by comparing them or data derived therefrom with the data stored in the entitlement list stored in the receiver. The operation of the radio receiver is permitted only if there is a correspondence to the data in the entitlement list. In addition, a radio receiver is proposed which makes it possible to monitor the right of access and has a slot (25) to accept an access entitlement card (70). A device (30) in the card slot (25) detects card-specific data on the access entitlement card (70) which are compared in an evaluation unit (5) with data on an entitlement list contained in a store (10). In the event of access entitlement, a control system (1) connected to the evaluation unit (5) activates the operation of the radio receiver.

Description

State of the art

The invention relates to a method for monitoring the Access authorization for a radio receiver and of a radio receiver according to the genus independent claims.

From the Blaupunkt catalog "Mobile Audio Systems 95/96" an anti-theft system is already known. A function of the car radio is only possible after inserting the one that matches the device Card possible. At the same time, the user-specific Retrieved device settings.

Advantages of the invention

The inventive method with the features of independent claim 1 has the advantage that used a phone card as an access authorization card can be. That way it is Access authorization card can be used more versatile, so that the Operation for the user is simplified.  

It is particularly advantageous to include specific data in the Broadcast receiving device introduced phone card in Read radio receiver and the read data based on one stored in the radio receiving device Check the authorization list for its access authorization. In this way, previously unused, on one Specific data on the telephone card Identification of the access authorization used so that none additional access authorization data on the phone card need to be saved, reducing effort and cost be saved.

It is also advantageous that depending on the scope of the Authorization list a larger group of people the device can use e.g. B. in a car radio in one Company car, and not the only one as before Authorization card among the people involved needs to be replaced.

By the measures listed in the subclaims advantageous further developments and improvements of the independent claim 1 specified method possible.

It is advantageous that if the read out matches or data derived from it with data from Authorization list corresponding to this data Memory area in the radio receiver in which Device settings of the radio receiver are stored, read out, and that this Device settings made on the radio receiver will. In this way, the card data is applied also assigned user-specific device settings, which means no additional storage space on the Phonecard is required.  

The use of a device-specific is advantageous Card for granting access authorization. In doing so, device-specific introduced into the radio receiving device Card called the authorization list, the specific Data also in the radio receiving device imported phone card and preferably read coded entered in the authorization list. To this Is a way for the owner of the radio receiver given an easy and little time-consuming way to Access authorization for multiple users of the Check radio receiver.

It is also advantageous that Broadcast receiving device an immobilizer of a vehicle is controlled that the immobilizer when removing a authorized phone card from the Radio receiver is activated and that the Immobilizer when introducing an authorized user Phone card is deactivated. In this way the Functionality and versatility of the phone card elevated. In addition, the immobilizer of a vehicle can be opened simple and inexpensive way of an im Vehicle radio can be controlled.

Due to the features of the independent claim 8 described radio receiver is an advantageous Realization of the method according to the invention possible.

A device for is particularly advantageous Detection of on the access authorization card applied card-specific data. In this way can be found on a phone card Collect card-specific data from the radio receiver.  

By the measures listed in claims 9 to 12 are advantageous further developments and improvements in Independent claim 8 specified radio receiving device possible.

A radio receiver with is particularly advantageous a first card slot for receiving a preferably Access authorization card designed as a telephone card and a second card slot to hold another preferably device-specific access authorization card. In this way, the phone card and the device-specific access authorization card simultaneously in the radio receiving device insertable, so that a control can be carried out more quickly using the access authorization.

The integration of one is particularly advantageous Telephone equipment in the radio receiving device. On this way, the phone card in Also use the radio receiver for making calls.

drawing

An embodiment of the invention is in the drawing shown and in the following description explained. Show it:

Fig. 1 shows an inventive radio receiver,

Fig. 2 shows the mapping of the memory locations of the memory for the device settings to the memory locations of the memory for the permission list,

Fig. 3 is a flowchart for the access authorization check,

Fig. 4 is a flowchart for the entry of a new access permission in the permission list,

Fig. 5 is a flowchart for the deletion of an entry from the permissions list,

Fig. 6 is a flowchart for the function of the immobilizer system,

Fig. 7 is a phone card and

Fig. 8 shows a device-specific access authorization card.

Description of the embodiment

In Fig. 1, 1 denotes a device controller to which a radio reception part 40, and a telephone device are connected 45th The device controller 1 is also connected to an evaluation unit 5 , which is connected to a first device 30 for detecting card-specific data from a telephone card. The first device 30 is located in a first card reader 25 . A first memory 10 serves to store an access authorization list and is connected both to the device controller 1 and to the evaluation unit 5 . A second memory 15 is used to store user-specific device settings and is connected both to the device controller 1 and to an operating unit 20 , which in turn is connected to the device controller 1 . All the modules mentioned are accommodated in a radio receiver designed as a car radio. The radio receiving device has an input for connecting an electronic immobilizer 35 , which is also connected to the device controller 1 . The evaluation unit 5 is connected to a second card reader SO, which has a second device 31 for the detection of card-specific data.

The access authorization to the radio receiving device is checked on the basis of a telephone card 70 inserted into the first card reader 25 according to FIG. 7. For this purpose, the telephone card 70 has card-specific data, which can be stored on the telephone card 70 , for example in a memory chip or a magnetic strip. The telephone card 70 could also contain a resistance matrix as a carrier of the card-specific data. In the exemplary embodiment described, the telephone card 70 contains a memory chip 55 with contacts on the surface of the telephone card 70 , which interact with corresponding mating contacts fitted in the first card reader 25 . The data stored in the memory chip 55 of the telephone card 70 are used primarily to assign a telephone number to the telephone device 45 , the telephone number being fixed for the telephone card 70 , regardless of the telephone device with which it is used. At the same time, data for the authorization to use network services are stored on the memory chip 55 via the telephone device 45 . When the telephone card 70 is inserted into the first card reader 25 , the call number and the authorization data are read out by means of the mating contacts and forwarded via the evaluation unit 5 and the device control 1 to the telephone device 45 for further processing. The card-specific data that is still stored on the telephone card 70 are also read out via the counter contacts when the telephone card 70 is inserted into the card slot 25 and detected by the first device 30 connected to the counter contacts. The first device 30 can also contain the counter contacts for reading out the memory chip 55 . The card-specific data read in this way are forwarded to the evaluation unit 5 . The access authorization of the inserted telephone card 70 is checked in the evaluation unit 5 . The corresponding procedure is shown in the schedule according to FIG. 3. After reading out the card-specific data at program point 100 , a comparison of the read data with the data of the authorization list from first memory 10 takes place at program point 110 in evaluation unit 5 . The data can be stored in coded form in the first memory 10 , so that in this case the card-specific data read out must be subjected to a corresponding preprocessing in the evaluation unit 5 before a comparison is made. If the card-specific data match an entry in the first memory 10 , the program branches to program point 120 , otherwise the program branches to program point 140 . At program point 140 , the phone card 70 is rejected. The program section is then exited. At program point 120 , device controller 1 is informed of the entry in first memory 10 corresponding to the card-specific data, so that device program 1 at program point 130 can carry out an assignment between this entry and a memory location in second memory 15 according to FIG. 2. Referring to FIG. 2, the first entry of the first memory 10 is associated with the first entry of the second memory 15 where the associated device settings are stored. The second memory location of the first memory 10 is assigned to the nth memory location of the second memory 15 and the nth memory location of the first memory 10 is finally assigned to the second memory location of the second memory 15 . Any other assignments are also conceivable. After assignment and reading of the device setting from the second memory 15 , the device setting is implemented by the device controller 1 on the radio receiving part 40 . The radio receiving device is then ready for use with these device settings. The telephone device 45 is also ready for operation, so that it can be used for the use of network services for telephone traffic under the call number stored in the memory chip 55 and in the scope of the authorization data also stored in the memory chip 55 .

With a device-specific card, the owner of the radio receiver can control the access authorization to his radio receiver. The device-specific card is shown in FIG. 8 and is identified by the reference numeral 75 and contains a memory chip 65 with contacts on the surface of the device-specific card 75 , which are electrically connected to counter-contacts of the second card reader 50 when the device-specific card 75 is inserted and interact with them. In this way, the data stored in the memory chip 65 of the device-specific card 75 are read out, detected by the second device 31 and compared in the evaluation unit 5 with the data of a non-rewritable memory location of the first memory 10 . Corresponding data preprocessing is also required here in the evaluation unit 5 if the data stored in the first memory 10 are encoded. If the data read from the memory chip 65 of the device-specific card 75 matches the corresponding data of the first memory 10 , the device-specific card 75 is recognized in the evaluation unit 5 as authorized. In a further exemplary embodiment, there is also the possibility of not storing the access authorization data in the memory chip 65 of the device-specific card 75 , but instead of using a magnetic strip or a resistance matrix instead of the memory chip 65 . Appropriate reading devices are then to be used instead of the counter contacts. A memory location of the second memory 15 is also assigned to the non-rewritable memory location of the first memory 10 . The device controller 1 implements the device settings stored there on the radio receiving part 40 and sets the radio receiving device in an operational state. Thus, the sequence corresponds to the sequence described 3 with the difference shown in FIG., That the telephone device 45 with the device-specific card 75 is not usable, since the memory chip 65 of the device-specific map 75 only access authorization data, but no phone number data and no authorization data for use of network services via the telephone device 45 contains. After the device-specific card 75 has been entered into the second card slot 50 in accordance with program step 200 according to FIG. 4 and the radio receiver has been ready for operation, a telephone card 70 is entered into the first card slot 25 at program point 220 . At program point 230 , the card-specific data of the telephone card 70 are read out and forwarded to the evaluation unit 5 . In the following it is checked whether the data read out from the telephone card 70 are to be entered in the authorization list of the first memory 10 , ie whether access authorization is to be granted for the telephone card 70 . At program point 240 , evaluation unit 5 first checks whether there is already an access authorization for telephone card 70 , ie whether corresponding data can already be found in the authorization list of first memory 10 . If this is the case, it is not necessary to issue an access authorization and the program branches to program item 320 . Otherwise the program branches to program point 250 . At program point 320 , by means of appropriate control of the device control 1, a display on the display 20 belonging to the operating unit 20 shows that an access authorization already exists for the inserted telephone card 70 . The program section is then exited. At program point 250, the device controller 1 checks whether there are still free memory spaces in the first memory 10 . If this is the case, the program branches to program point 260 , otherwise the program branches to program point 330 . At program point 330 , the device control 1 displays on the display of the operating unit 20 that an access authorization for the telephone card 70 cannot be granted due to a lack of free storage space and that another access authorization may have to be deleted. The program section is then exited. In program step 260 , device controller 1 queries the display of control unit 20 as to whether the user wishes to grant access authorization for inserted telephone card 70 . If this is the case, the program branches to program point 270 , otherwise the program branches to program point 340 . At program point 340 , the device controller 1 causes a display on the control unit 20 that the user has refused access authorization for the inserted telephone card 70 . The program section is then exited. At program point 270 , the card-specific data read from the inserted telephone card 70 are written into a free memory location of the first memory 10 by the evaluation unit 5, if necessary. Except for the memory location which contains the access authorization data stored on the device-specific card 75 , all memory locations of the first memory 10 can be overwritten. In this way, the device-specific card 75 can be used at any time to control the access authorization of various telephone cards. At program point 280 , the currently overwritten memory location of the first memory 10 is assigned a free memory location of the second memory 15 by the device controller 1 for storing device settings. This storage space is overwritten with the current device settings. The memory locations of the second memory 15 can be overwritten using corresponding key combinations on the operating unit 20 of the radio receiving device with a telephone card or device-specific card inserted into the radio receiving device and after successful access authorization at any time with the current device settings by the user.

In Fig. 5, the flow chart is shown, which is used for deleting a telephone card of the access authorization. At program point 400, the device-specific card 75 is entered into the second card slot 50 . After successful access authorization check by the evaluation unit 5 for the device-specific card 75 , the authorization list is called up at program point 410 by a key combination entered by the user on the operating unit 20 and displayed on the display of the operating unit 20 by the device controller 1 . The user can now interactively delete an entry in the authorization list using a key combination on the operating unit 20 . At program point 420, the device control 1 checks whether at least one entry has been deleted after a predetermined time. If this is the case, the program branches to program 420 and the same check is carried out again. Otherwise the program branches to program point 440 . At program point 440 , the display of the authorization list on the display of the control unit 20 ends. The program section is then exited. With the deletion of an entry in the authorization list, the allocated storage space of the second memory 15 is also free.

If the immobilizer 35 is connected to the device controller 1 according to FIG. 1, the immobilizer can be activated or deactivated using the telephone card 70 or the device-specific card 75 . Fig. 6 shows the corresponding flow chart. At program point 500 , the telephone card 70 or the device-specific card 75 is entered into the first card reader 25 or the second card reader 50 . At program point 510 , it is checked according to the described method whether the telephone card 70 or the device-specific card 75 is authorized to access. If this is the case, the program branches to program point 520 , otherwise the program part is exited. At program point 520 , an activated immobilizer is deactivated. At program point 530 , all cards inserted into the radio receiving device are removed and then the immobilizer 35 is activated. The program section is then exited.

The device settings can of course be changed at any time during operation of the radio receiving device via the control unit 20 and by appropriate implementation by means of the device control 1 on the radio receiving part 40 without the corresponding memory locations of the second memory 15 being overwritten.

In a further exemplary embodiment, instead of the two card readers 25 and 50 , a single card reader can also be used, in which case the device control 1 may have to be made known by the user via the operating unit 20 after insertion of the device-specific card 75 , that for a telephone card 70 subsequently introduced, one Entry in the authorization list should be checked.

The functionality of the telephone card 70 described is not limited to the areas described. Rather, other modules, such as cassette drives, CD players or video devices, can be controlled using an access-authorized telephone card.

Under the device settings is described in the Embodiment the assignment of station buttons that Sound setting, volume setting and / or to understand the like.

Claims (12)

1. A method for monitoring the access authorization in a radio receiving device, in particular a car radio, characterized in that specific data of an inserted into the radio receiving device phone card ( 70 ), in particular the assignment of a number to a telephone device and / or the authorization to use network services the telephone device is used to be read in the radio receiver that the access authorization for the telephone card ( 70 ) is checked on the basis of the read data by comparing the data read or derived therefrom with the data of an authorization list stored in the radio receiver, and that a function of the radio receiver only works if they match with data in the authorization list. 2. The method according to claim 1, characterized in that if the read or derived ones match Data with data from the authorization list with this data corresponding memory area in the radio receiver, in the device settings of the radio receiver are stored, read out, and that this Device settings made on the radio receiver will.   3. The method according to claim 1 or 2, characterized in that for the assignment of an access authorization, a device-specific card ( 75 ) is inserted into the radio receiving device, that the specific data of an inserted into the radio receiving device telephone card ( 70 ) read out and preferably coded in the authorization list will. 4. The method according to claim 3, characterized in that a memory area in the entry in the authorization list Broadcast receiver is assigned to the storage of device settings. 5. The method according to claim 2, 3 or 4, characterized in that the memory area for the device settings is preferably overwritten with a key combination on an operating unit ( 20 ) of the radio receiving device with inserted into the radio receiving device phone card ( 70 ) and after successful access authorization with the current device settings becomes. 6. The method according to any one of the preceding claims, characterized in that an immobilizer ( 35 ) of a vehicle is controlled by the radio receiver, that the immobilizer ( 35 ) is activated upon removal of an access-authorized telephone card ( 70 ) from the radio receiver, and that the immobilizer ( 35 ) is deactivated when an access-authorized telephone card ( 70 ) is inserted. 7. The method according to any one of the preceding claims, characterized in that for deleting the access authorization of a telephone card ( 70 ), the device-specific card ( 75 ) is inserted into the radio receiving device, that the authorization list is called up, and that the specific, preferably coded in the authorization list Data entered on the telephone card ( 70 ) are preferably deleted by a key combination on an operating unit ( 20 ) of the radio receiving device. 8. radio receiver, in particular car radio, with a card slot ( 25 ) for receiving an access authorization card ( 70 ), characterized in that the card slot ( 25 ) comprises a device ( 30 ) for detecting card-specific data applied to the access authorization card ( 70 ) that A first memory ( 10 ) for storing an authorization list is provided, that in an evaluation unit ( 5 ) the detected data is compared with data from the authorization list, and that a device control ( 1 ) connected to the evaluation unit ( 5 ) is used in the case of access authorization Function of the radio receiver activated. 9. Radio receiver according to claim 8, characterized in that a second memory ( 15 ) is provided for storing device settings, that this second memory ( 15 ) via a device controller ( 1 ) connected to the control unit ( 20 ) can be controlled, that the memory locations this second memory ( 15 ) memory locations are assigned to the authorization list, and that the second memory ( 15 ) for the device settings is connected to the device controller ( 1 ) which is used to implement stored device settings or those specified by the operating unit ( 20 ). 10. Radio receiver according to claim 8 or 9, characterized in that a telephone device ( 45 ) is integrated in the radio receiver. 11. Radio receiver according to claim 8, 9 or 10, characterized in that the radio receiver can be connected to the immobilizer ( 35 ) of a vehicle, for deactivating the immobilizer ( 35 ) as a function of an introduced access authorization card and for activating the immobilizer ( 35 ) Removal of an authorized access card. 12. A radio receiving device according to one of claims 8 to 11, characterized in that in addition to the card slot ( 25 ) for receiving an access authorization card ( 70 ) which is preferably designed as a telephone card, a second card slot ( 50 ) is provided for receiving a further preferably device-specific access authorization card ( 75 ) .