Abstract: An integrated circuit for a wireless charging receiver includes a differential input for receiving a differential voltage from an antenna of the wireless charging receiver, the differential input comprising a first input terminal and a second input terminal; a variable resistor coupled between the first input terminal and the second input terminal; a rectifier coupled to the differential input and configured to: receive the differential voltage; and output a rectified voltage; a control circuit coupled to the rectifier and the variable resistor, where the control circuit is configured to: monitor a rise time of the rectified voltage; and set a resistance value of the variable resistor based on the rise time.

Abstract: There is described an RF communication device, the device comprising (a) a data memory for storing data, (b) an RF interface (112) for RF communication with an external RF device (130), (c) a host interface (111) for communication with a host device (120), (d) a host access memory unit (214, 215) comprising host interface access control data, the host interface access control data defining host access rules for accessing data in the data memory through the host interface (111), and (e) a host access control unit for, based on the host interface access control data, controlling access to data in the data memory through the host interface (111). There is also described a system and a method.

Abstract: There is disclosed a method of transferring data using a tag, said tag comprising an RF interface unit, a host interface unit and a memory, the method comprising: the RF interface unit connects the tag to an RF device; the host interface unit connects the tag to a host device; the tag enters into a pass-through mode; in said pass-through mode, the tag transfers data, either in a first configured transfer direction, from the RF device to the host device, or, in a second configured transfer direction, from the host device to the RF device; in said pass-through mode, the tag buffers said data in the memory. Furthermore, a corresponding computer program product and a corresponding tag are disclosed.

Abstract: There is disclosed a method of transferring data using a tag, said tag comprising an RF interface unit, a host interface unit and a memory, the method comprising: the RF interface unit connects the tag to an RF device; the host interface unit connects the tag to a host device; the tag enters into a pass-through mode; in said pass-through mode, the tag transfers data, either in a first configured transfer direction, from the RF device to the host device, or, in a second configured transfer direction, from the host device to the RF device; in said pass-through mode, the tag buffers said data in the memory. Furthermore, a corresponding computer program product and a corresponding tag are disclosed.

Abstract: There is described an RF communication device, the device comprising (a) a data memory for storing data, (b) an RF interface (112) for RF communication with an external RF device (130), (c) a host interface (111) for communication with a host device (120), (d) a host access memory unit (214, 215) comprising host interface access control data, the host interface access control data defining host access rules for accessing data in the data memory through the host interface (111), and (e) a host access control unit for, based on the host interface access control data, controlling access to data in the data memory through the host interface (111). There is also described a system and a method.