Global Patent Index - EP 0807733 A3

EP 0807733 A3 2000-12-06 - 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

EP 0807733 A3 (EN)

Application

EP 97303313 A

Priority

  • JP 12186996 A
  • JP 24355596 A

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 (main, further and additional classification)

E05B 49/00

IPC 8 full level (invention and additional information)

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 (invention and additional information)

G07C 9/00309 (2013.01); G07C 2009/00396 (2013.01); G07C 2009/00412 (2013.01); G07C 2009/00785 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

EP 0807733 A2 19971119; EP 0807733 A3 20001206; JP H1030367 A 19980203

INPADOC legal status


2003-04-09 [18W] WITHDRAWN

- Effective date: 20030213

2001-07-04 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010504

2000-12-06 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

- Designated State(s): DE FR GB

1997-11-19 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): DE FR GB