Abstract: Identification module for mobile equipment, containing the contacts to interface with the said mobile unit and an active tag built with a transceiver integrated circuit and a slotted dipole antenna. The SIM card includes also its own crystal oscillator used as a time-base for the active tag.

Abstract: A method by which an active tag can be switched from a deep sleep mode to an operating mode is based on a detector embedded on an active tag providing a wake up pulse to a state-machine of the tag in response to external energy pulse that will open an radio frequency listen window in which a reader can send any usual command, among them a wake-up command or a configuration command.

Abstract: A method and a passive tag enable making a distance d detection of a radio telemetry unit, typically an RFID active tag or passive tag, without having the possibility to measure the incoming amplitude of power at the reader. The telemetry unit of a tag sends a sequence of steps together with its value of amplitude and data to be transmitted to the reader. The reader decodes the first understandable part of the sequence to determine the amplitude of the power required by the telemetry unit to be in range of the reader, and therefore can deduce a distance d.