| 摘要 |
Compared with conventional locks actuated by means of cards with a magnetic code, the invention concentrates on the use of cards 5 provided with a chip or electronic circuit 6 capable of preserving its information in the face of external destabilizing agents, such as sources of heat or magnetic sources, the lock 1 also having a keypad 3 which makes it possible to combine the code of the card with a personal numerical code, to be keyed in by each user, so that each key card of a set associated with one and the same lock has a specific code known only to the holder of said key card. <IMAGE>
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