Abstract: Apparatus for identifying a communicating mobile terminal comprises an electromagnetic coupling device, an ultra-wide-band radio subsystem and a monitoring subsystem. The electromagnetic coupling device defines an exclusive zone for electromagnetic coupling between the device and the communicating mobile terminal, The ultra-wide-band radiofrequency subsystem simulates the availability to communicate with the mobile terminal of at least one base station of a telecommunication network. The monitoring subsystem recognizes a unique digital signature of the communicating mobile terminal implementing samples of an electromagnetic trace of a message sent by the mobile terminal in attempt to connect to a simulated base station.

Abstract: Apparatus for identifying a communicating mobile terminal comprises an electromagnetic coupling device, an ultra-wide-band radio subsystem and a monitoring subsystem. The electromagnetic coupling device defines an exclusive zone for electromagnetic coupling between the device and the communicating mobile terminal, The ultra-wide-band radiofrequency subsystem simulates the availability to communicate with the mobile terminal of at least one base station of a telecommunication network. The monitoring subsystem recognizes a unique digital signature of the communicating mobile terminal implementing samples of an electromagnetic trace of a message sent by the mobile terminal in attempt to connect to a simulated base station.

Abstract: A method and a reference circuit for bias current switching are provided for implementing an integrated temperature sensor. A first bias current is generated and constantly applied to a thermal sensing diode. A second bias current is provided to the thermal sensing diode by selectively switching a multiplied current from a current multiplier to the thermal sensing diode or to a load diode. The reference circuit includes a reference current source coupled to current mirror. The current mirror provides a first bias current to a thermal sensing diode. The current mirror is coupled to a current multiplier that provides a multiplied current. A second bias current to the thermal sensing diode includes the first bias current and the multiplied current from the current multiplier. The second bias current to the thermal sensing diode is provided by selectively switching the multiplied current between the thermal sensing diode and a dummy load diode.

Abstract: A multi emitter multi input BICMOS NAND circuit (30) is provided wherein an output node OUT connected to an output terminal (33) is coupled between pull up (31) and pull down (32) blocks. According to one embodiment of the present invention, the pull up block (32) is comprised of a plurality of identical basic cells, each comprised of a CMOS inverter (C31, C32) driving an NPN pull up transistor (T31, T32) mounted as an emitter follower. Logic signals (A31, A32) are applied on the inputs of the inverters (C31, C32), and the inverted signal (A31, A32) is available at the emitter of the emitter follower which corresponds to the output of the cell. All outputs are tied altogether to perform an OR function and are connected to said output terminal (33) to have a multi emitter like circuit.