Patent application number | Description | Published |
20090119058 | Displacement Speed Measurement Method - The measurement method of the displacement speed of a moving element with respect to a fixed element is performed by means of an optic measuring device comprising a first reference sensor and a plurality of distinct second measurement sensors substantially aligned along the axis of movement of the moving element. The measurement method comprises determination of estimated speeds by correlation of the signals supplied by the reference sensor and each of the measurement sensors, and calculation of a mean speed of said estimated speeds. | 05-07-2009 |
20090213359 | OPTICAL DEVICE FOR MEASURING MOVING SPEED OF AN OBJECT RELATIVE TO A SURFACE - The invention relates to sensors of the speed of movement of a vehicle over the ground. The sensor comprises illumination means for illuminating the surface and at least one optical sensor able to detect the radiation returned by the surface. The illumination means and the optical sensor have one and the same optical axis, oblique in relation to the surface. This arrangement eliminates the risks of specular reflection dazzling the sensor while avoiding disturbance of the measurement by variations in the height of the sensor relative to the ground. | 08-27-2009 |
20100082288 | DEVICE AND METHOD FOR DETECTING THE PATH OF AN OBJECT MOVING IN TWO DIMENSIONS - A method of reconstructing, in two dimensions, a path of a living being or of an object moving, by a repetitive movement, in a plane or a two-dimensional surface or along a plane or a two-dimensional surface, including: measuring at least two variable components of the projection of the terrestrial magnetic field on at least two axes of a biaxial or triaxial magnetometer connected to or situated on the living being or object, measuring the period, or frequency, of a signal corresponding to the measurement of at least one of the variable components along one of the axes of the magnetometer, measuring the heading, or direction, of the movement, from at least two field measurements along at least two axes of the magnetometer, and reconstituting the path from the measurements of period or frequency and of heading or direction. | 04-01-2010 |
20110153233 | SYSTEM FOR MEASURING A MAGNETIC FILED COMPRISING A THREE-AXIS SENSOR FOR MEASURING A MAGNETIC FILED THAT IS ABLE TO MOVE TOGETHER WITH A CARRIER THAT DISRUPTS THE MEASUREMENTS, AND ASSOCIATED METHOD - The magnetic field measurement system comprises a triaxial main sensor ( | 06-23-2011 |
20110267046 | METHOD AND DEVICE FOR COMPENSATION IN A MEASUREMENT OF A MAGNETIC FIELD, OBJECT-LOCALIZING METHOD AND SYSTEM, RECORDING MEDIUM FOR THESE METHODS - This method of compensation in the measurement of a magnetic field comprises:
| 11-03-2011 |
20120092004 | DETECTION METHOD AND DETECTOR OF A DISRUPTION, POSITIONING METHOD AND SYSTEM USING SAID METHOD - This method for detecting a disturber of magnetic field amplitude comprises:
| 04-19-2012 |
20120139742 | METHOD AND APPARATUS FOR CONVERTING A DISPLACEMENT OF A MAGNETIC OBJECT INTO A DIRECTLY PERCEPTIBLE SIGNAL, INSTRUMENT INCORPORATING THIS APPARATUS - This method of converting a displacement of a magnetic object into a signal directly perceptible by a human being, comprises:-the acquisition ( | 06-07-2012 |
20120249634 | PORTABLE DEVICE AND METHOD FOR PRINTING AN IMAGE, RECORDING MEDIUM, PEN AND BENCHMARK FOR SAID DEVICE - The invention relates to a portable device for printing an image in a printing area provided on a material substrate, which includes: at least one removable benchmark ( | 10-04-2012 |
20120313626 | METHOD AND DEVICE FOR IDENTIFYING A SUBSET OF MEASUREMENTS, METHOD AND SYSTEM FOR LOCATING AN OBJECT, RECORDING MEDIUM FOR THESE METHODS - Identifying measurement subset comprising a disturbed measurement disturbed by a magnetic disturber includes emitting and measuring magnetic fields using mono-axial source/mono-axial transducer pairs to obtain real measurements distinguished by position of a source used to emit the field, position of transducer used to measure the field, and field frequency, a source being tied to a mobile object and the transducer tied to a frame of reference in which a position of the mobile object is to be expressed (or vice versa), estimating position of the object in the reference frame based on an observer and involving only a first subset of the measurements, estimating the measurements based at least in part on the estimated position Pi and on a direct model linking the object's position to the measurements, and determining whether or not the first measurement subset comprises a disturbed measurement by comparing the estimated and real measurements. | 12-13-2012 |
20140315047 | SYSTEM OF POWER BATTERIES FOR DETERMINING THE IMPEDANCE OF A STAGE - An accumulator battery system has stages, a power connection, a controller, and circuits. The stages are series-connected. Each has an electrochemical accumulator and a switch. A power connection connects a load to the stages. Each the circuit is associated with a stage. Each circuit generates a voltage variation at terminals of its associated stage, and applies, to a switch of the associated stage, a binary sequence at a frequency. The sequence differs from those of other stages, thus allowing distinguishing between stages based on the sequence. The controller, which is connected to the stages by the power connection, measures a voltage variation across terminals of the stage in response to application of the binary sequence to the stage, identifies a stage from which the variation originates by searching for its associate sequence, and determines, from the variation, an impedance of the identified stage for that frequency. | 10-23-2014 |
20150061696 | BATTERY PROTECTED AGAINST ELECTRIC ARCS - The invention relates to a DC electrical power supply source including
| 03-05-2015 |