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Michel Willemin, Preles CH

Michel Willemin, Preles CH

Patent application numberDescriptionPublished
20080197861METHOD OF AUTOMATICALLY TESTING AN ELECTRONIC CIRCUIT WITH A CAPACITIVE SENSOR AND ELECTRONIC CIRCUIT FOR THE IMPLEMENTATION OF THE SAME - A method for automatically testing an electronic circuit with a capacitive sensor having two capacitors is provided, wherein the common electrode of the capacitors moves relative to each fixed electrode. The electronic circuit includes a sensor interface that includes a charge transfer amplifier unit, an integrator unit connected to the amplifier unit to provide measurement output voltage, and an excitation unit. The excitation unit inversely polarizes each fixed electrode at high or low voltage or discharges the capacitors. The method includes several successive measurement cycles each divided into a first phase discharging capacitors by output voltage and a second phase for polarizing the fixed electrode of the first capacitor at high voltage and inversely polarizing the fixed electrode of the second capacitor at low voltage. In the measuring cycles, a test phase replaces a second polarizing phase in at least one cycle in every two successive measurement cycles.08-21-2008
20090059989OPTOELECTRONIC CIRCUIT WITH A PHOTORECEPTOR AND A LASER DIODE, AND MODULE COMPRISING THE SAME - The optoelectronic circuit includes a photoreceptor (03-05-2009
20090066392ELECTRONIC CIRCUIT FOR MEASURING A PHYSICAL PARAMETER SUPPLYING AN ANALOGUE MEASUREMENT SIGNAL DEPENDENT UPON THE SUPPLY VOLTAGE - The electronic circuit (03-12-2009
20090298543CHIP CARD WITH COMPLEMENTARY ELECTRONIC MEANS - The chip card includes at least one integrated circuit (12-03-2009
20100201393CHIP CARD WITH A MEASURING CIRCUIT THAT HAS A SENSOR, AND METHOD OF MAKING THE CHIP CARD - The chip card (08-12-2010
20100231237ELECTRONIC CIRCUIT WITH A CAPACITIVE SENSOR FOR MEASURING A PHYSICAL PARAMETER AND METHOD OF ACTIVATING THE ELECTRONIC CIRCUIT - The electronic circuit (09-16-2010
20110088448INSTRUMENT FOR CALIBRATING AN ALTIMETRIC DEVICE - Calibration instrument for an altimetric device delivering an indication of the altitude of the location where it is located on the basis of an atmospheric pressure measurement, characterized in that it includes means for transmitting a signal carrying data representative of the altitude at which it is placed. The invention also concerns a device delivering an indication of the altitude of the place where it is located on the basis of an atmospheric pressure measurement and a calibration system including a calibration instrument and an altimetric device.04-21-2011
20110147571MOTION DETECTION MECHANISM FOR LASER ILLUMINATED OPTICAL MOUSE SENSOR - A method for measuring relative motion between an illuminated surface and an optical sensing device comprising a coherent light source and a photodetector array is described. The method includes illuminating under a determined gradient, using the coherent light source, a surface portion at a determined flash rate; detecting, using the photodetector array, speckled light intensity pattern of the illuminated surface portion for a first flash; detecting a second speckled light intensity pattern of the illuminated surface portion for a second flash; extracting motion features of two different types from the detected first and second speckled light intensity patterns; determining a measurement of relative motion between the optical sensing device and the illuminated surface portion based on comparison of motion features extracted; wherein the method further comprises a filtering step in order to adjust, and preferably decrease, the number of motion features used in the step of determining a measurement of relative motion.06-23-2011
20110154906METHOD OF MEASURING A PHYSICAL PARAMETER AND ELECTRONIC INTERFACE CIRCUIT FOR A CAPACITIVE SENSOR FOR IMPLEMENTING THE SAME - The measuring method is for measuring a physical parameter by means of an electronic interface circuit (06-30-2011

Patent applications by Michel Willemin, Preles CH