Centre National De La Recherche Scientifique

Elo Touch Solutions, Inc.

Tyco Electronics Services Gmbh

Alpha Mos S.a.

Franck Benhamouda

Ros Kiri Ing

Alain Gaudon

Chang Hyun Shim

Philippe Menini

Francois Loubet

Jean Christophe Mifsud

Jean-Michel Linotte

The sensitivity and/or selectivity of a chemoresistor type gas sensor is enhanced by measuring the response of the sensing material to a gas sample while the sensing material is subjected to illumination using specially-tailored pulses of ultraviolet radiation. For a given target gas to be detected there is an optimal duration of the UV pulses to achieve peak sensitivity of the sensing material.

Sensitivity and selectivity of chemoresistor type gas sensors

The invention relates to a device, in particular, a touch sensitive device, and more in particular, a single-touch sensitive device configured to recognize gestures, such as zoom, rotate, flick, using specific characteristics based on a single-touch localization system. The invention also relates to a method for recognizing/identifying gestures, such as zoom, rotate, flick, in a low-end device equipped with such as a single-touch sensitive device which is able to recognize one single point at a time.

Method and device for determining a touch gesture

An automatic gain control circuit including a variable gain amplifier () adapted to receive a received signal (R) and to output an amplified signal (A) to an analog to digital converter (), and a gain controller () which is connected to said variable gain amplifier () for receiving said amplified signal (A) and for controlling a gain of said variable gain amplifier (). The gain controller () is adapted to determine an occurrence of a threshold event each time the amplified signal (A) has reached a predetermined threshold, decrease the gain of the variable gain amplifier () at each occurrence of a threshold event, measure a delay since the last threshold event, increase the gain of the variable gain amplifier () if the delay is greater than a delay specified value and if the gain of the variable gain amplifier () is not maximum.

Automatic gain control circuit

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Plaisir, France

Franck Benhamouda