Abstract: A piece of electronic equipment including a first subsystem such as a touch-sensitive tablet and a second subsystem such as a payment terminal. The first sub-system embeds a first operating system for managing the power consumption of the first subsystem. The second subsystem embeds a specific and secure operating system capable of executing payment transactions. Since the two subsystems execute two different operating systems, an operating state of one of the subsystems may not allow the required service to be implemented if this requires the use of resources implemented by both of the two subsystems. Thus the first and second subsystems exchange data relating to their respective operating state and, where appropriate, change their current operating state as a function of the data relating to an operating state of the other subsystem thus exchanged.

Abstract: A piece of electronic equipment including a first subsystem such as a touch-sensitive tablet and a second subsystem such as a payment terminal. The first sub-system embeds a first operating system for managing the power consumption of the first subsystem. The second subsystem embeds a specific and secure operating system capable of executing payment transactions. Since the two subsystems execute two different operating systems, an operating state of one of the subsystems may not allow the required service to be implemented if this requires the use of resources implemented by both of the two subsystems. Thus the first and second subsystems exchange data relating to their respective operating state and, where appropriate, change their current operating state as a function of the data relating to an operating state of the other subsystem thus exchanged.

Abstract: A system of data entry includes a touch panel of a terminal and a data-entry device to be placed on the touch panel. The touch panel includes a matrix of electrodes having nodes and is managed by a control unit configured carrying out cycles of capacitive scanning and measurement of variance of capacitance of the nodes relative to reference values, detecting meaningful touches on the touch panel and recalibrating reference values. The device includes a plate having a lower face for placing the device on the touch panel; and an upper face with a matrix of entry zones having a thickness enabling a detection of a finger by the touch panel; a flat contact pad electrically conductive and fixedly attached to the lower face; and a network of conductive tracks stretching over at least a part of the upper face and being electrically connected to the contact pad.

Abstract: A system of data entry includes a touch panel of a terminal and a data-entry device to be placed on the touch panel. The touch panel includes a matrix of electrodes having nodes and is managed by a control unit configured carrying out cycles of capacitive scanning and measurement of variance of capacitance of the nodes relative to reference values, detecting meaningful touches on the touch panel and recalibrating reference values. The device includes a plate having a lower face for placing the device on the touch panel; and an upper face with a matrix of entry zones having a thickness enabling a detection of a finger by the touch panel; a flat contact pad electrically conductive and fixedly attached to the lower face; and a network of conductive tracks stretching over at least a part of the upper face and being electrically connected to the contact pad.