System having a plurality of service facilities with access...

Details System having a plurality of service facilities with access... System having a plurality of service facilities with access...

2007-11-01

2010-12-28

Le, Thien M. (Department: 2887)

Registers

Systems controlled by data bearing records

Credit or identification card systems

Reexamination Certificate

active

07857213

ABSTRACT:
A system has a plurality of groups of service facilities, each facility having an access control device with a read/write device for a contactless data carrier. The read/write devices of each group are networked with a separate database provided for each group. The data carrier has an identification number and a transaction counter with a transaction number which is changed upon a change of application data stored thereon. The application data, the identification number and the transaction number are stored in the database of the group to which the user goes for access. Upon access to a service facility, only the identification number and the transaction number are read from the data carrier. If the identification number and transaction number match with the identification number and transaction number stored in the database, the application data is retrieved from the database, and in case of a valid access authorization, the access control device permits access without reading application data from the data carrier.

REFERENCES:
patent: 2002/0121545 (2002-09-01), Eguchi et al.
patent: 2007/0001002 (2007-01-01), Ponert et al.
patent: 102004013965 (2005-12-01), None
patent: 1814088 (2007-08-01), None

Affiliated with

Also associated with

Rating

System having a plurality of service facilities with access... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System having a plurality of service facilities with access..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System having a plurality of service facilities with access... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4213134