G - Physics – 07 – C
Patent
G - Physics
07
C
G07C 9/00 (2006.01) G08C 17/02 (2006.01)
Patent
CA 2553587
In a method of controlling access to an area accessible by persons, particularly to a space closed by a door (1), there is provided a first mobile communications unit (20) on which at least one access code is filed. In addition, a receiver unit (10) for receiving the access code is provided. In a first variant of the method an activation signal is transmitted by the communications unit (20) within a predetermined range (R). If the receiver unit (10) is located within the range (R) of the activation signal and receives the activation signal the receiver unit (10) is activated. Subsequently, the access code is transmitted from the communications unit (20) to the receiver unit (10). After a successful check of the access code by the receiver unit (10) the access is freed. In a second variant of the method the activation signal is transmitted by the receiver unit (10) within a predetermined range (R). If the communications unit (20) is located within the range (R) of the activation signal and receives the activation signal the receiver unit (10) is activated. The access code is subsequently transmitted from the communications unit (20) to the receiver unit (10) and after a successful check of the access code by the receiver unit (10) the access is freed.
Ag Inventio
Riches Mckenzie & Herbert Llp
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