| 摘要 |
The portable object (200) comprises a plurality of electric contacts for communicating by galvanic channel with a terminal of a first type itself comprising a plurality of homologous electric contacts, and a coil (102) for communicating without contact with a terminal of a second type (100) transmitting in modulated electromagnetic field transmitting data. The data transmitted by the terminal are timed by a clock signal, and the portable object comprises means for clock detecting (220) to modify the functioning of the portable object depending on the presence or the absence of a clock signal (CLK) in the received signal, in particular the signal picked up by the coil. These means can in particular monitor protocols of communication and/or of signal processing and/or of received data processing, and means for interrupting the connection between the electric contacts and other circuits of the portable object. |
