Integrated data entry system including a card proximity sensor f

Details Integrated data entry system including a card proximity sensor f Integrated data entry system including a card proximity sensor f

1998-03-12

2000-08-15

Hajec, Donald

Registers

Systems controlled by data bearing records

Credit or identification card systems

235382, 235439, 902 4, 34082531, 34082534, G06K 500

Patent

active

061022861

ABSTRACT:
A method and apparatus for access control is disclosed. The apparatus comprises a keypad unit, proximity sensor, a card reader interface circuit, and a control circuit. The keypad unit displays a plurality of randomly generated symbols on a keyface which includes a plurality of keys. The keypad unit generates a signal representing one of the plurality of randomly generated symbols when a corresponding key on the keyface is activated. The proximity sensor senses the information encoded in a card held near the keypad unit. The proximity sensor is hidden within the keypad unit. The card reader interface circuit is coupled to the proximity sensor for reading the encoded information from the card. The control circuit is coupled to the keypad unit and the card reader interface circuit to convert the signal or the encoded information into an identification code.

REFERENCES:
patent: 4032931 (1977-06-01), Haker
patent: 4333090 (1982-06-01), Hirsch
patent: 4479112 (1984-10-01), Hirsch
patent: 4502048 (1985-02-01), Rehm
patent: 4644326 (1987-02-01), Villalobos et al.
patent: 5774053 (1998-06-01), Porter
patent: 5880444 (1999-03-01), Shibata et al.

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