A smart card wallet for holding a plurality of smart cards. The smart card wallet comprises a front surface plate; a back surface plate; a communication interface configured to receive instructions from a transaction terminal; a switch coupled to the communication interface; an internal core coupled between the front surface plate and the back surface plate, the internal core comprises: a first cavity configured to hold a first smart card that stores one or more sets of information associated with a first account of a user; a second cavity configured to hold a second smart card that stores one or more sets of information associated with a second account of the user, wherein the switch is configured to provide the instructions to the first smart card by electrically coupling the communication interface to the first smart card while the second card remains disabled.

A smart card wallet for holding a plurality of smart cards. The smart card wallet comprises a front surface plate; a back surface plate; a communication interface configured to receive instructions from a transaction terminal; a switch coupled to the communication interface; an internal core coupled between the front surface plate and the back surface plate, the internal core comprises: a first cavity configured to hold a first smart card that stores one or more sets of information associated with a first account of a user; a second cavity configured to hold a second smart card that stores one or more sets of information associated with a second account of the user, wherein the switch is configured to provide the instructions to the first smart card by electrically coupling the communication interface to the first smart card while the second card remains disabled.

A device includes a first inductor and a second inductor. The first inductor has a first inductive coupling profile. A first circuit component is coupled to the first inductor. A second inductor has a second inductive coupling profile. A second circuit component coupled to the second inductor.

A device includes a first inductor and a second inductor. The first inductor has a first inductive coupling profile. A first circuit component is coupled to the first inductor. A second inductor has a second inductive coupling profile. A second circuit component coupled to the second inductor.

A smart card wallet for holding a plurality of smart cards. The smart card wallet comprises a front surface plate; a back surface plate; a communication interface configured to receive instructions from a transaction terminal; a switch coupled to the communication interface; an internal core coupled between the front surface plate and the back surface plate, the internal core comprises: a first cavity configured to hold a first smart card that stores one or more sets of information associated with a first account of a user; a second cavity configured to hold a second smart card that stores one or more sets of information associated with a second account of the user, wherein the switch is configured to provide the instructions to the first smart card by electrically coupling the communication interface to the first smart card while the second card remains disabled.

A device includes a first inductor and a second inductor. The first inductor has a first inductive coupling profile. A first circuit component is coupled to the first inductor. A second inductor has a second inductive coupling profile. A second circuit component coupled to the second inductor.

A carrier (CA) for multiple chip cards (C1, C2), in particular for multiple subscriber identity modules, SIMs, comprising: a first receptacle (R1) for receiving a first chip card (C1), a second receptacle (R2) for receiving a second chip card (C2), wherein the first and the second receptacle (R1, R2) are arranged symmetric to a central point (P).

A device includes a first inductor and a second inductor. The first inductor has a first inductive coupling profile. A first circuit component is coupled to the first inductor. A second inductor has a second inductive coupling profile. A second circuit component coupled to the second inductor.

A smart card wallet for holding a plurality of smart cards. The smart card wallet comprises a front surface plate; a back surface plate; a communication interface configured to receive instructions from a transaction terminal; a switch coupled to the communication interface; an internal core coupled between the front surface plate and the back surface plate, the internal core comprises: a first cavity configured to hold a first smart card that stores one or more sets of information associated with a first account of a user; a second cavity configured to hold a second smart card that stores one or more sets of information associated with a second account of the user, wherein the switch is configured to provide the instructions to the first smart card by electrically coupling the communication interface to the first smart card while the second card remains disabled.

An electronic unit includes a communication interface, a processor, a secure element, and a sub-system. The processor is connected to the communication interface by a first bus, to the secure element by a second bus and to the sub-system. The processor is designed to operate in a first mode, in which, at the second bus, it reproduces the signals received from the communication interface at the first bus. Also disclosed is a method carried out in such an electronic unit.