A self-service terminal (10 or 200 or 300) comprises a plurality of intercommunicating modules (114 to 126, or 214 to 226, or 314 to 326). Each module includes a transceiver for wireless communication with another module. In one embodiment, the wireless communication is directed between two modules so...http://www.google.es/patents/US7206544?utm_source=gb-gplus-sharePatente US7206544 - Self-service terminal
