The Swatch Group Research and Development Ltd

Jérôme Stauffer

Thierry Scordilis

Michel Willemin

Luca De Rosa

A method for calibrating an electronic temperature sensor connected to a mobile device. The device includes a microprocessor and memory linked to the microprocessor, to store an application coupled to a data entry interface. The temperature sensor is initially placed in a plurality of predetermined environments, where it provides an initial raw temperature value measured in each environment, and, for each of these environments, a predetermined initial temperature value corresponding to the actual temperature of this environment is entered beforehand directly into the application via the interface. The method includes in computing a calibration curve according to each predetermined initial temperature value entered from the application and according to each corresponding initial raw temperature value provided by the temperature sensor, storing in the device or in the sensor, calibration parameters determined from the calibration curve, and correcting by the calibration parameters each raw temperature value measured by the sensor.

Method for calibrating at least one electronic temperature sensor

A portable electronic authentication device () for providing access to a website or a computer resource or a secure place. The portable electronic device includes a first communication unit () and a second communication unit () different from the first communication unit. The first communication unit is intended to receive an interrogation signal (S) from a control device of a control system, which includes the portable electronic device. The second communication unit is intended to transmit a response signal (S) which includes identification data of the portable electronic device to authenticate the portable electronic device in the control system and allow access to a website or a computer resource or a secured place.

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Neuchâtel, Switzerland

Jérôme Stauffer