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1. (WO1998031902) ACCESS CONTROL SYSTEM FOR CONTROLLING THE ACCESS TO AT LEAST ONE SPACE, AND PRODUCT INCLUDING AN ACCESS CONTROL SYSTEM
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/1998/031902 International Application No.: PCT/IB1998/000056
Publication Date: 23.07.1998 International Filing Date: 15.01.1998
IPC:
G07C 9/00 (2006.01)
G PHYSICS
07
CHECKING-DEVICES
C
TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS, OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
9
Individual entry or exit registers
Applicants: KONINKLIJKE PHILIPS ELECTRONICS N.V.[NL/NL]; Groenewoudseweg 1 NL - 5621 BA Eindhoven, NL
PHILIPS AB[SE/SE]; Kottbygatan 7 Kista S-164 85 Stockholm, SE (SE)
Inventors: APSCHNER, Martin; NL
RUDOLPH, Thomas; NL
SPIESS, Bernhard; NL
Agent: WEBER, Helmut; Internationaal Octrooibureau B.V. P.O. Box 220 NL-5600 AE Eindhoven, NL
Priority Data:
97890011.621.01.1997EP
Title (EN) ACCESS CONTROL SYSTEM FOR CONTROLLING THE ACCESS TO AT LEAST ONE SPACE, AND PRODUCT INCLUDING AN ACCESS CONTROL SYSTEM
(FR) SYSTEME DE CONTROLE D'ACCES A AU MOINS UN ESPACE, ET PRODUIT COMPORTANT UN SYSTEME D'ACCES
Abstract:
(EN) In an access control system (8) - which comprises a transponder communication device (9) and at least two transmission coils (11, 12) connected to the transponder communication device (9), for receiving transponder signals, of which a first transmission coil (11) is associated with a first door (2), and which comprises a first activation device (18) associated with the first transmission coil (11) and the first door (12), and which comprises a first door opener (23) for the first door (2) and a logic device (45) by means of which the first door opener (23) can be activated - the two transmission coils (11, 12) have arbitrarily large receiving ranges and the first transmission coil (11) and at least one further transmission coil (12) are followed by amplitude detection means (34, 36) by which the amplitudes of the transponder signals supplied by the two transmission coils (11, 12) can be detected and the logic device is arranged after the amplitude detection means (34, 36) and adapted to detect a condition in which the amplitude of the transponder signal supplied by the first transmission coil (11) is greater than the amplitude supplied by the second transmission coil (12), which first door opener (23) for the first door (2) can be activated by means of the logic device (45) only upon detection of this condition.
(FR) L'invention porte sur un système de contrôle d'accès (8) comportant un transpondeur de communication (9) et au moins deux bobines de transmission (11, 12) reliées au transpondeur de communication (9), pour en recevoir les signaux. La première bobine de transmission (11) est associée à une première porte (2), qui comprend un premier dispositif d'activation (18) associé à la première bobine de transmission (11) et à la première porte (2), et qui comprend un premier ouvre-porte (23) pour la première porte (2) et un dispositif logique servant à activer le premier ouvre-porte (23). Les deux bobines de transmission (11, 12) présentent des plages de réception de largeur arbitraire et la première bobine de transmission (11) et au moins la bobine de transmission suivante (12) sont suivies par des moyens de détection d'amplitude (34, 36) servant à mesurer les signaux de transpondeurs fournis par les deux bobines de transmission. Le dispositif logique (45) est placé après les moyens de détection d'amplitude (34, 36) et conçu pour détecter une condition selon laquelle l'amplitude du signal du transpondeur fourni par la première bobine de transmission (11) est supérieure à l'amplitude fournie par la deuxième bobine de transmission (12), le susdit ouvre-porte (23) de la première porte (2) ne pouvant être activé par le dispositif logique (45) que si cette condition est détectée.
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Designated States: JP, KR
European Patent Office (EPO) (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)