EP 0807733 A3 20001206 - Identification signal checking apparatus and methods
Title (en)
Identification signal checking apparatus and methods
Title (de)
Vorrichtung und Verfahren zur Identifikationssignalprüfung
Title (fr)
Appareil et procédés de contrôle de signal d'identification
Publication
Application
Priority
- JP 12186996 A 19960516
- JP 24355596 A 19960913
Abstract (en)
[origin: EP0807733A2] An identification signal checking apparatus includes an apparatus (1) to be detected having a first wireless transmitting and receiving unit (4) , a first signal processing unit (3) and a first memory unit (5) for storing an identification signal. A detecting apparatus (10) has a second wireless transmitting and receiving unit (11), a second signal processing unit (12), a second memory unit (13) for storing an identification signal, and a random number generating unit (14). When the detecting apparatus (10) receives a response request signal from the apparatus (1) to be detected, the detecting apparatus (10) transmits a random number signal obtained from the random number generating unit (14). When receiving the random number signal, the apparatus (1) to be detected encrypts the identification signal stored in the first memory unit (5) by using the random number signal and transmits the encrypted identification signal to the detecting apparatus (10). The detecting apparatus (10) decrypts the encrypted identification signal and checks whether or not it coincides with the identification signal stored in the second memory unit (13). <IMAGE>
IPC 1-7
IPC 8 full level
E05B 49/00 (2006.01); B60R 25/01 (2013.01); B60R 25/24 (2013.01); G07C 9/00 (2006.01); H04K 1/02 (2006.01); H04Q 9/00 (2006.01)
CPC (source: EP KR)
G07C 9/00309 (2013.01 - EP KR); G07C 2009/00396 (2013.01 - EP KR); G07C 2009/00412 (2013.01 - EP KR); G07C 2009/00785 (2013.01 - EP KR)
Citation (search report)
- [Y] GB 2192665 A 19880120 - NEIMAN SECURITY PRODUCTS LIMIT
- [Y] EP 0484686 A2 19920513 - IBM [US]
- [A] US 4509093 A 19850402 - STELLBERGER KARL-HEINZ [DE]
- [A] US 5355413 A 19941011 - OHNO HISASHI [JP]
- [A] US 5321753 A 19940614 - GRITTON DALE G [US]
- [A] US 4819267 A 19890404 - CARGILE WILLIAM P [US], et al
- [A] US 5506575 A 19960409 - ORMOS ZOLTAN S [HU]
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0807733 A2 19971119; EP 0807733 A3 20001206; JP H1030367 A 19980203; KR 970078181 A 19971212
DOCDB simple family (application)
EP 97303313 A 19970515; JP 24355596 A 19960913; KR 19970018933 A 19970516