Control of a card interface
First Claim
1. An apparatus in a device requiring an authorization for a card inserted into the device to initiate access to a desired function of the device, the device including means for checking identification data on the card and for allowing access to the desired function after the identification data is verified, comprising:
- a memory unit containing verified identification data;
a timer for generating a timer signal;
comparison means responsive to the timer signal for comparing identification data on a card in the device during access to the desired function with the identification data contained in the memory unit and for generating a termination signal if the data are not the same;
termination means responsive to the termination signal for terminating access to the desired function; and
a system controller interactive with the timer for controlling a supply voltage to the card.
1 Assignment
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Accused Products
Abstract
An apparatus for a device, particularly a telephone, using a memory card or a smart card inserted into the device including means for checking the identification data of the card and for activating the desired function of the apparatus after the verification of the data. The apparatus may include a memory unit in which the verified identification data read in from the card is recorded and used to compare subsequent identification data read in from a card. Alternatively, the apparatus may compare identification data read in from a card against verification data permanently stored in the apparatus. The apparatus also includes a timer and a comparison means which, on the basis of the output signal of the timer, compare the identification data of the card with either identification permanently stored in the apparatus or verified data previously read in from a card that is recorded in the memory unit, and thus terminate operation if the compared identification data are not identical.
213 Citations
11 Claims
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1. An apparatus in a device requiring an authorization for a card inserted into the device to initiate access to a desired function of the device, the device including means for checking identification data on the card and for allowing access to the desired function after the identification data is verified, comprising:
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a memory unit containing verified identification data; a timer for generating a timer signal; comparison means responsive to the timer signal for comparing identification data on a card in the device during access to the desired function with the identification data contained in the memory unit and for generating a termination signal if the data are not the same; termination means responsive to the termination signal for terminating access to the desired function; and a system controller interactive with the timer for controlling a supply voltage to the card. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification