Title:
アクセス制御システム
Document Type and Number:
Japanese Patent JP2005513316
Kind Code:
A
Abstract:
An access control system includes a tag carried by a user which communicates over a short range wireless link to door lock controller to provide to the controller a security access code and actuate door release means. In the event the correct access code is not known by the tag, the tag communicates with access code repository and requests a valid access code. When requesting the valid access code, the tag also communicates to the repository an identity provided by the door release means and an identity of the tag itself. A decision may then be taken whether to provide the tag with a valid access code for that particular door release means. The door release means may provide the tag with a telephone number to call when making the request to the repository.
Inventors:
Van Schau, David, Gee., Jay
Application Number:
JP2003556962A
Publication Date:
May 12, 2005
Filing Date:
November 21, 2002
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
E05B49/00; G06K19/00; G06K19/07; G07C9/00; (IPC1-7): E05B49/00; G06K19/00; G06K19/07
Attorney, Agent or Firm:
Masao Sawada