04701601 is referenced by 478 patents and cites 8 patents.

A transaction card is disclosed having a magnetic stripe emulator. The transaction card is adapted for use with presently available transaction terminals that include a sensor for reading a magnetic stripe. The subject card includes a transducer for generating a varying magnetic field corresponding to information typically encoded on a magnetic stripe. In operation, a microprocessor in the card extracts transaction data stored in a memory and supplies output signals to the transducer. The transducer generates a varying magnetic field corresponding to the transaction information which is read by the sensor in the transaction terminal.

Title
Transaction card with magnetic stripe emulator
Application Number
6/727869
Publication Number
4701601
Application Date
April 26, 1985
Publication Date
October 20, 1987
Inventor
Vincent Boston
San Mateo
CA, US
Einar L Asbo
Mill Valley
CA, US
Joseph P Francini
Castro Valley
CA, US
Agent
Limbach Limbach & Sutton
Assignee
Visa International Service Association
CA, US
IPC
G06K 7/08
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