Device for machine communication in data transmission
First Claim
1. A data carrier for a non-contact remote data communication with a control station, the control station controlling a passage to one of a plurality of different areas or spaces by checking and/or changing data of authorization of passages on the data carrier when the data carrier is approached to the control station, the data carrier comprising:
- a memory designed to store data of at least two independent authorizations, each authorization being specific to one of the different areas or spaces;
A microprocessor, the microprocessor partially comprising the memory, the microprocessor further comprising means for performing discretionary functions on the data of each authorization and further comprising means for controlling operations of the data carrier;
a power-supply unit for providing power to the data carrier;
a data sending-receiving unit for receiving data from the control unit and transmitting data to the control unit;
an electronic clockwork for maintaining an indication of the time of day;
a digital display for selectively displaying the data of each authorization stored in the microprocessor;
an operating button for selecting what will be displayed on the digital display; and
a fastening means for connection of the data carrier to the owner of the data carrier.
1 Assignment
0 Petitions
Accused Products
Abstract
For automated communication in a limited acquisition space, for example in order to identify or check an access authorization, use is made of active data supports which comprise a transmitter (15), a receiver (16), a read-write memory, an electric clock, a computer, a display and a power source (7). The checking station is also provided with a transmitter-receiver to check and possibly modify the data. Each transmitter-receiver has a limited communication space, of which the maximum extent is less than the minimum extent of the acquisition space. In this way it is not necessary to plug in the data support, of which a precise point must, however, be deliberately brought close to the checking station. In this way a definite coordination between the checking station and a further data support is prevented.
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Citations
16 Claims
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1. A data carrier for a non-contact remote data communication with a control station, the control station controlling a passage to one of a plurality of different areas or spaces by checking and/or changing data of authorization of passages on the data carrier when the data carrier is approached to the control station, the data carrier comprising:
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a memory designed to store data of at least two independent authorizations, each authorization being specific to one of the different areas or spaces; A microprocessor, the microprocessor partially comprising the memory, the microprocessor further comprising means for performing discretionary functions on the data of each authorization and further comprising means for controlling operations of the data carrier; a power-supply unit for providing power to the data carrier; a data sending-receiving unit for receiving data from the control unit and transmitting data to the control unit; an electronic clockwork for maintaining an indication of the time of day; a digital display for selectively displaying the data of each authorization stored in the microprocessor; an operating button for selecting what will be displayed on the digital display; and a fastening means for connection of the data carrier to the owner of the data carrier. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification