Patent ID: 7975921

Claim:
An inductive coupling reader, comprising: a passive interface to modulate an impedance of an antenna and to extract from the antenna a data signal and a radio-frequency clock signal; a security module interface configured to couple the reader to at least one removable security module including a Subscriber Identification Module (SIM) card; an emulator configured to open a radio-frequency transmission channel with another reader, to transfer to the removable security module interface application data received through the radio-frequency transmission channel, and to send in the radio-frequency transmission channel application data received through the security module interface; an electrical link coupling the emulator to the passive interface by which the data signal and the radio-frequency clock signal are supplied to the emulator; a baseband communication interface configured to couple the reader to at least one baseband device; an emulator data bus clocked by a bus clock signal, having a frequency inferior to a frequency of the radio-frequency clock signal and coupled to the emulator; and a common multiplexed bus coupled to the emulator data bus, to the baseband communication interface and to the security module interface, wherein the emulator and baseband device access the removeable security module through the common multiplexed bus.