04582985 is referenced by 412 patents and cites 23 patents.

A data carrier (preferably shaped as a credit card or the like) holds information about the owner, card issuing organization, account number, etc., and comprises an internal processor for processing supplied identification information of the owner during a card verification process, and for generating an acceptance signal as a result of a positive verification. The internal processor includes a verification device which comprises a sensor (2) for sensing a fingertip of the owner and obtaining corresponding finger print line information. The sensor has sensing elements, each having a sensing surface (9') for contacting the fingertip and a registration device (23,24) which is controllable by the sensing surface. The verification device also includes a reader (3) for reading the state of registration of the fingerprint on the sensing surface, a signal processor (4) for forming an identification bit sequence from the registration state information, a memory (6) for permanently storing a previously and correspondingly obtained reference bit sequence, a comparator (5) for comparing the identification bit sequence and the reference bit sequence and for generating an acceptance signal (coincidence) between the sequences is acceptable, and a controller for the control and current supply (8,10) of the verification device during the verification process.

Data carrier
Application Number
Publication Number
Application Date
November 12, 1982
Publication Date
April 15, 1986
Bo Lofberg
Vindragarvagen 12, S-117 40 Stockholm
Frishauf Holtz Goodman & Woodward
G06K 5/00
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