Patent application number | Description | Published |
20080231292 | Device and Method for Capacitive Measurement by a Floating Bridge - A device for capacitive measurement by a floating bridge, including: a sensor module including at least one measuring electrode and at least one guard electrode arranged close to a target connected to a general earth, at least one integrated circuit for capacitive measurement, provided with a guard to which the guard electrode is connected, having an input connected to the measuring electrode, a guard connected to the reference earth of the integrated circuit, an excitation output connected to the general earth, a measurement output, and structure for supplying the integrated circuit for capacitive measurement in floating mode. | 09-25-2008 |
20090140729 | INDUCTIVE NON-CONTACT MEASUREMENT OF A RELATIVE MOVEMENT OR RELATIVE POSITIONING OF A FIRST OBJECT RELATIVE TO A SECOND OBJECT - A non-contact measurement method for a relative displacement or relative positioning of a first object relative to a second object, in which: at least one transmitting coil, placed on the first object, is excited by an alternating excitation signal, at least one alternating electronic output signal, generated by mutual inductance in at least one receiving coil, is detected; the at least one receiving coil being placed on the second object and in a magnetic field created by the at least one transmitting coil, and the relative displacement of the first object is determined relative to the second object using the at least one alternating electric output signal generated on the at least one receiving coil. | 06-04-2009 |
20120132006 | CAPACTIVE PRESSURE SENSOR INCORPORATING A TEMPERATURE MEASUREMENT AND COMPATIBLE WITH HOT ENVIRONMENTS - A capacitive measurement device including first measurement device designed to carry out a first measurement function in relation to a nearby object, the first measurement device including a body and, a capacity electrode, both of a substantially conductive material, and a guard electrode placed between the body and the capacitive electrode and insulated from the body on the one hand and from the capacitive electrode on the other hand by dielectric elements; an excitation apparatus which maintains the capacitive electrode and the guard electrode to a desired AC electrical potential; a first electronic apparatus, connected to the capacitive and guard electrodes, for measuring the capacitance between the capacitive electrode and the object; and a second measurement device designed to carry out a second measurement function, which are located in the vicinity of either the capacitive or guard electrode, and maintained by the excitation apparatus to a desired AC electrical potential. | 05-31-2012 |
20120187965 | CAPACITIVE DETECTION HAVING FUNCTION INTEGRATION - A capacitive measurement device includes: at least one measurement electrode having an active surface; at least one guard made from an electrically conductive material placed adjacent to the measurement electrode(s), the guard being excited up to an alternating electric potential substantially identical to that of the measurement electrodes; and a first electronic device for exciting the electrode(s) and processing the measurement signals from the capacitive coupling of the electrode(s) to an object placed adjacent thereto, the electronic device being at least partially referenced to the electric potential of the guard. The measurement device further includes apparatus for performing another function, placed adjacent to the active surface, and a second electronic device provided for monitoring the apparatus for performing another function, the second electronic device being at least partially referenced to the electric potential of the guard. | 07-26-2012 |
20120188200 | DEVICE AND METHOD FOR CONTROL INTERFACE SENSITIVE TO A MOVEMENT OF A BODY OR OF AN OBJECT AND CONTROL EQUIPMENT INTEGRATING THIS DEVICE - A method and device is provided for control interface sensitive to a movement of a body or of an object and the control equipment integrating this device, in particular gestural and/or tactile and/or vocal, sensitive to a movement of at least one part of a body or of an object within a detection space, including a detection surface, at least one capacitive sensor, having a measurement electrode, a guard made of electrically conducting material disposed in proximity to the measurement electrodes, and electronic apparatus for processing the signals emanating from the at least one capacitive sensor. The active surfaces of the measurement electrodes are independent of one another, and an electronic device for excitation and processing interrogate these measurement electrodes independently of one another. | 07-26-2012 |
20130307776 | THREE-DIMENSIONAL MAN/MACHINE INTERFACE - A method is provided for selecting controls, which implements a control interface, a display, and at least one sensor capable of detecting at least one control object, including a step (i) of obtaining information on the distance between the control object(s) and the control interface using the sensor(s), and a step (ii) of displaying, on the display, at least one symbol representing a control or set of controls according to a display mode, wherein the method further includes a step of using the distance information to determine the display mode of the symbol(s). A device is also provided for implementing the method and to an apparatus. | 11-21-2013 |
20140070823 | CAPACITIVE CONTROL INTERFACE DEVICE HAVING DISPLAY INTEGRATION - A capacitive detection control interface device is provided, including at least one measurement electrode including an active surface, a guard made from an electrically conductive material placed adjacent to the measurement electrodes, the guard is excited up to an alternating electric potential substantially identical to that of the measurement electrodes, a first electronic component for exciting the electrodes and processing the measurement signals from the capacitive coupling of the electrodes with an object laced adjacent thereto, the electronic component is at least partly referenced to the electric potential of the guard, and a second electronic component for performing another functional display, placed adjacent to the active surface which second electronic component is at least partly referenced to the electric potential of the guard. | 03-13-2014 |
20140103712 | DEVICE AND METHOD FOR GENERATING AN ELECTRICAL POWER SUPPLY IN AN ELECTRONIC SYSTEM WITH A VARIABLE REFERENCE POTENTIAL - A method and device for generating a power supply voltage (Vf), referenced to a first reference potential ( | 04-17-2014 |
20140125357 | INTEGRATED CIRCUIT FOR CAPACITIVE MEASUREMENT INCLUDING A FLOATING BRIDGE - A capacitive measurement device is provided, including: (i) a first electronic system electrically referenced to a guard potential and connectable to capacitive electrodes; (ii) a second electronic system electrically referenced to a ground potential; and (iii) an energizing component connected to the guard and ground potentials, respectively, to impart an AC voltage differential between the potentials. The device also includes an integrated circuit that is referenced to the ground and includes a first installation area in which the first electronic system is implemented, and a second installation area in which the second electronic system is implemented. Also included are systems using the device and uses of the device. | 05-08-2014 |
20140145732 | DEVICE FOR GENERATING AN ALTERNATING VOLTAGE DIFFERENCE BETWEEN THE REFERENCE POTENTIALS OF ELECTRONIC SYSTEMS - The present invention relates to a device for generating an alternating voltage difference between a first and second reference potential. The device comprises: an oscillator electrically referenced to the first reference potential; and a voltage follower/amplifier device electrically referenced to the second reference potential and having an input connected to the oscillator and an output connected to the first reference potential such that it can impose an alternating voltage difference, which depends on the signal generated by the oscillator, between said first and second reference potentials. The invention also relates to a system that uses the device and to a method for generating an alternating voltage difference between a first and second reference potential. | 05-29-2014 |
20140267165 | SWITCHED-ELECTRODE CAPACITIVE-MEASUREMENT DEVICE FOR TOUCH-SENSITIVE AND CONTACTLESS INTERFACES - The present invention relates to a capacitive-measurement device for touch-sensitive and/or contactless interfaces, including at least one capacitive-measurement electrode ( | 09-18-2014 |
20140347321 | DEVICE AND METHOD FOR CONTROL INTERFACE SENSITIVE TO A MOVEMENT OF A BODY OR OF AN OBJECT AND VIEWING SCREEN INTEGRATING THIS DEVICE - A device for control interface sensitive to movement of a body, includes a detection surface; at least one capacitive sensor including a measurement electrode including an active surface facing the detection surface, or substantially coinciding with the detection surface; electronic excitation and processing components for exciting the measurement electrodes at an alternating electrical potential and processing the signals emanating from the capacitive sensors, to provide distance information between the active surface of the electrodes and one or several objects; a guard of electrically conducting material disposed in proximity to the measurement electrodes, at least along the face of the measurement electrodes substantially opposite to the active surface, which guard is excited at an alternating electrical potential substantially identical to the alternating electrical potential of the measurement electrodes, wherein: the measurement electrodes and the guard are made of substantially transparent conducting materials; and the device for interface is substantially transparent. | 11-27-2014 |
20140360854 | PRESSURE-SENSITIVE CAPACITIVE MEASUREMENT DEVICE AND METHOD FOR TOUCH-SENSITIVE AND CONTACTLESS INTERFACES - A capacitive measurement device for control interfaces, includes: (i) a support plate ( | 12-11-2014 |
20150035792 | CAPACITIVE DETECTION DEVICE WITH ARRANGEMENT OF LINKING TRACKS, AND METHOD IMPLEMENTING SUCH A DEVICE - A human-machine interface device is provided having a transparent detection zone and an access zone, and including a surface having electrodes made from a conductive transparent material in the detection zone, conductive connecting tracks arranged in the access zone and connected to the surface having electrodes, a first conductive surface in the transparent zone made from transparent material, and utilized as a guard for the surface having electrodes. The connecting tracks are arranged in a sandwich between a second and a third conductive surfaces utilized as second and third guards for these connecting tracks. Linking tracks are made from a transparent conductive material for linking the connecting tracks to electrodes of the surface having electrodes. The linking tracks are positioned between the electrodes when these linking tracks are situated on the detection surface; and positioned between the second and third guards when these linking tracks are in the access zone. | 02-05-2015 |