Abstract: A method for aligning an input interface of a touchscreen with an overlay for the touchscreen is provided. The method comprises receiving a touch input on the touchscreen, wherein the touch input identifies a first position on the touchscreen corresponding to an alignment mark of the overlay; determining, based on the received touch input, a region of the touchscreen in which to render the input interface; and rendering the input interface in the determined region of the touchscreen.

Abstract: A battery-powered device comprising a power input providing power to the device is described herein, with a housing having an opening for receiving a smartcard. There may be at least one electrical contact within the housing, the at least one electrical contact connected to the power input. There is also provided a power supply for one or more battery-powered devices each having at least one electrical contact within a housing configured to make contact with a smartcard introduced into an opening in the housing, the power supply comprising a power input (e.g., a wire or circuit). There may be an electrical output connected to the power input.

Abstract: A battery-powered device with an opening for receiving a smartcard; inside the opening there being at least one electrical contact which can be used to receive power from a power supply. There is also provided a power supply for one or more of the battery-powered devices, the power supply having one or more paddles each of which is configured to enter the smartcard opening of the battery powered device and supply power from a power input, to the electrical contact(s) located inside the opening.

Abstract: A battery-powered device with an opening for receiving a smartcard; inside the opening there being at least one electrical contact which can be used to receive power from a power supply. There is also provided a power supply for one or more of the battery-powered devices, the power supply having one or more paddles each of which is configured to enter the smartcard opening of the battery powered device and supply power from a power input, to the electrical contact(s) located inside the opening.