Universal authentication device for use over telephone lines

Details Universal authentication device for use over telephone lines Universal authentication device for use over telephone lines

H - Electricity

04

M

H04M 1/66 (2006.01) G06Q 20/00 (2006.01) G07F 7/10 (2006.01) H04L 9/32 (2006.01) H04M 1/54 (2006.01)

Patent

CA 2087886

This invention relates to a universal authenticator for use with an ordinary telephone station over an ordinary telephone line. The authenticator, which is the size and shape of a credit card, receives a query number by being held against the receiver of the telephone station and receiving audio signals in a receiver. Using its own key, it transforms the received query number into an individualized response number which it transmits via its speaker when the authenticator is held against the microphone of the telephone station.

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