Methods of data storage and data storage systems
First Claim
1. A data storage system comprising at least one portable electronic device and at least one data-transfer device, characterized in that said portable electronic device comprises:
- readily portable plural-section, addressable data memory means;
coupling means operable temporarily to connect said memory means with said data transfer means;
memory control circuits interconnected with the coupling means and with the memory means;
said memory means and said control circuits being constructed in the form of logic microstructures; and
in that said data transfer device comprises data transfer means operable to transfer data into said memory means;
said system being further characterized by inhibitor means preventing the transfer of data of predetermined sections of said memory means.
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Accused Products
Abstract
Data, for example, data relating to a bank account, is carried on the person in the form of a small portable means such as a flat card containing encapsulated logic microstructures. The circuitry includes a memory and its control circuits, with inhibitor means preventing access to predetermined sections of the memory. The portable means cooperates with data-transfer means provided at fixed locations. Credit entries in the card are summed and the debit entries are summed and subtracted from the credit entries. Any credit balance may be used to effect a purchase or to obtain an issue of cash money. Coupling of the card and data-transfer means is effected optically by light-emitting diodes cooperating with photovoltaic piles, or by direct electrical contact. Prohibited memory sections carry a code actuating a lock-out latch system. Alternatively a predetermined collection of addresses in the memory is prohibited, setting up one of these addresses actuates the lock-out.
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Citations
38 Claims
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1. A data storage system comprising at least one portable electronic device and at least one data-transfer device, characterized in that said portable electronic device comprises:
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readily portable plural-section, addressable data memory means; coupling means operable temporarily to connect said memory means with said data transfer means; memory control circuits interconnected with the coupling means and with the memory means;
said memory means and said control circuits being constructed in the form of logic microstructures; and
in that said data transfer device comprises data transfer means operable to transfer data into said memory means;said system being further characterized by inhibitor means preventing the transfer of data of predetermined sections of said memory means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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Specification