Payment cards and devices with displays, chips, RFIDs, magnetic emulators, magnetic encoders, and other components

摘要

A payment card (e.g., credit and/or debit card) or other card or device (e.g., mobile telephone) is provided with a magnetic emulator operable to communicate data to a magnetic stripe read-head. User interfaces are provided in a number of different configurations in order to achieve a number of different functionalities.