Memory card compatible financial transaction card

Abstract

An electronic transaction card communicates with an add-on slot of an intelligent electronic device. The add-on slot may be a memory card slot. The intelligent electronic device may be a mobile phone or other device with or without network connectivity. The electronic transaction card may have magnetic field producing circuitry compatible with magnetic card readers, smartcard circuitry, other point-of-sale interfaces, or any combination thereof.

1 . A financial card comprising:
 a point-of-sale compatible interface to communicate with a point-of-sale transaction device;   a memory card compatible interface to allow the financial card to be used in a memory card slot; and   memory card emulation circuitry coupled to the memory card compatible interface.   
     
     
         2 . The financial card of  claim 1  wherein the point-of-sale compatible interface comprises smartcard circuitry. 
     
     
         3 . The financial card of  claim 1  wherein the point-of-sale compatible interface includes circuitry compatible with a hybrid smartcard reader. 
     
     
         4 . The financial card of  claim 1  further comprising nonvolatile memory accessible through the memory card compatible interface. 
     
     
         5 . The financial card of  claim 1  further comprising volatile memory accessible through the memory card compatible interface. 
     
     
         6 . The financial card of  claim 1  further comprising software to be installed on a device with the memory card slot. 
     
     
         7 . A memory card comprising:
 a memory card compatible interface to allow the memory card to be used in a memory card slot;   a point-of-sale compatible interface to communicate with a point-of-sale transaction device; and   financial card emulation circuitry coupled to the point-of-sale compatible interface to communicate financial transaction data to the point-of-sale transaction device.   
     
     
         8 . The memory card of  claim 7  wherein the point-of-sale compatible interface comprises smartcard circuitry. 
     
     
         9 . The memory card of  claim 7  wherein the point-of-sale compatible interface includes circuitry compatible with a hybrid smartcard reader. 
     
     
         10 . The memory card of  claim 7  further comprising nonvolatile memory accessible through the memory card compatible interface. 
     
     
         11 . The memory card of  claim 7  further comprising volatile memory accessible through the memory card compatible interface. 
     
     
         12 . The financial card of  claim 7  further comprising software to be installed on a device with the memory card slot. 
     
     
         13 . An apparatus comprising:
 smartcard circuitry;   a point-of-sale compatible interface coupled to the smartcard circuitry, to communicate with a point-of-sale transaction device; and   a memory card compatible interface having at least one electrical contact to communicate with a memory card slot in an intelligent electronic device.   
     
     
         14 . The apparatus of  claim 13  wherein the point-of-sale compatible interface includes circuitry compatible with a hybrid smartcard reader. 
     
     
         15 . The apparatus of  claim 13  further comprising nonvolatile memory accessible through the memory card compatible interface. 
     
     
         16 . The apparatus of  claim 13  further comprising volatile memory accessible through the memory card compatible interface. 
     
     
         17 . The apparatus of  claim 13  further comprising software to be installed on the intelligent electronic device.