Mobile Terminal for a Traffic Information System, and Method for Activating an Access Control Device in a Mobile Terminal
1 Assignment
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Accused Products
Abstract
Disclosed is a mobile terminal characterized by a first manipulation unit (7) which is designed to modify control data (CD) contained in a received piece of traffic information (TI) in such a way that a decoding device (5) and an access control device (9) are activated by an evaluation unit (8) also when the traffic information (TI) has a non-encoded location designation (LC). The access control device (9) can thus use user control designed for encoded location data (cLC) also for traffic information services in which the location designations are not encoded.
19 Citations
20 Claims
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1-9. -9. (canceled)
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10. A mobile terminal for a traffic information system, comprising:
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a receiver for location-based traffic information, the traffic information comprising control data and one of an unencrypted location identifier or an encrypted location identifier; an evaluation unit for evaluating the control data; a memory facility storing at least one tabular map containing location entries; an access control apparatus activatable by the evaluation unit and configured to permit or prevent access to the at least one tabular map based on prescribed use authorization; a decryption device activatable by the evaluation unit for decrypting the encrypted location identifier, the evaluation unit configured to utilize the control data to one of activate the access control apparatus and the decryption device if the traffic information contains an encrypted location identifier and deactivate the access control device and the decryption device if the traffic information contains an unencrypted location identifier; and a first manipulation unit configured to alter the control data such that the evaluation unit activates the decryption device and the access control apparatus if the traffic information contains an unencrypted location identifier. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A method for activating an access control apparatus for a tabular map in a mobile terminal in a traffic information system, wherein the mobile terminal comprises a receiver for location-based traffic information, the traffic information comprising one of an unencrypted location identifier, an encrypted location identifier and control data, a memory facility for at least one tabular map containing location entries, an access control apparatus which is activatable by the evaluation unit and which is confirming to permit or prevent access to the at least one tabular map based on prescribed use authorization, a decryption device which is activatable by the evaluation unit for decrypting the encrypted location identifier, a comparator for the control data, and a first manipulation unit for the control data, the method comprising the steps of:
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receiving traffic information comprising control data and one of an unencrypted location identifier or an encrypted location identifier, the control data indicating whether the traffic information contains one of the unencrypted location identifier and the encrypted location identifier; comparing the control data with prescribed control data; altering the control data in a segment of traffic information which contains the unencrypted location identifier based on the comparison such that the control data indicate an encrypted location identifier; and activating the decryption device and the access control apparatus if the control data indicate the encrypted location identifier. - View Dependent Claims (17, 18, 19)
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20. A method for activating an access control apparatus for a tabular map in a mobile terminal in a traffic information system, the method comprising the steps of:
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receiving traffic information comprising control data and one of an unencrypted location identifier or an encrypted location identifier, the control data indicating whether the traffic information contains one of the unencrypted location identifier and the encrypted location identifier; comparing the control data with prescribed control data; altering the control data in a segment of traffic information which contains the unencrypted location identifier based on the comparison such that the control data indicate an encrypted location identifier; and activating a decryption device and an access control apparatus if the control data indicate the encrypted location identifier.
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Specification