Abstract: In accordance with a first aspect of the present disclosure, a near field communication (NFC) controller is provided, comprising a load modulation amplitude control unit configured to control a load modulation amplitude of one or more signals transmitted through an NFC antenna, wherein said load modulation amplitude control unit is further configured to change said load modulation amplitude in dependence on a supply voltage. In accordance with a second aspect of the present disclosure, a corresponding method of operating a near field communication (NFC) controller is conceived. In accordance with a third aspect of the present disclosure, a corresponding computer program is provided.

Abstract: In accordance with a first aspect of the present disclosure, a near field communication (NFC) controller is provided, comprising a load modulation amplitude control unit configured to control a load modulation amplitude of one or more signals transmitted through an NFC antenna, wherein said load modulation amplitude control unit is further configured to change said load modulation amplitude in dependence on a supply voltage. In accordance with a second aspect of the present disclosure, a corresponding method of operating a near field communication (NFC) controller is conceived. In accordance with a third aspect of the present disclosure, a corresponding computer program is provided.

Abstract: Various aspects are directed to circuit apparatuses, portable electronic devices, and executable applets pertaining to storing and providing secure access to data. As consistent with one or more embodiments, an apparatus includes a memory circuit that stores executable applet data, a near-field communication (NFC) controller that communicates and receives power via an NFC antenna, and a secure element connected to and powered by the NFC controller circuit (e.g., and operable within a portable device). The secure element executes the applet data as follows. In response to an update command and identification (ID) data, the secure element operates in an update mode by storing the ID data. In response to a read command, the secure element operates in a read mode by providing access to the stored ID data. In response to a read-only command, the secure element operates in a read-only mode by providing read-only access to the stored ID data and preventing changes to the stored ID data.

Abstract: Various exemplary embodiments relate to a method of controlling a near field communications (NFC) system, including: reading a number of low power iterations N from a memory; performing N low power polls; performing a normal power poll. Further, various exemplary embodiments relate to a method of controlling a near field communications (NFC) system, including: performing a low power poll of a tag; detecting a tag; initiating a first activation of the detected tag; receiving an indication that the first activation fails; reading a number of retries N from a memory; performing a second activation.

Abstract: Various aspects are directed to circuit apparatuses, portable electronic devices, and executable applets pertaining to storing and providing secure access to data. As consistent with one or more embodiments, an apparatus includes a memory circuit that stores executable applet data, a near-field communication (NFC) controller that communicates and receives power via an NFC antenna, and a secure element connected to and powered by the NFC controller circuit (e.g., and operable within a portable device). The secure element executes the applet data as follows. In response to an update command and identification (ID) data, the secure element operates in an update mode by storing the ID data. In response to a read command, the secure element operates in a read mode by providing access to the stored ID data. In response to a read-only command, the secure element operates in a read-only mode by providing read-only access to the stored ID data and preventing changes to the stored ID data.

Abstract: Various exemplary embodiments relate to a method of controlling a near field communications (NFC) system, including: reading a number of low power iterations N from a memory; performing N low power polls; performing a normal power poll. Further, various exemplary embodiments relate to a method of controlling a near field communications (NFC) system, including: performing a low power poll of a tag; detecting a tag; initiating a first activation of the detected tag; receiving an indication that the first activation fails; reading a number of retries N from a memory; performing a second activation.