Patent application number | Description | Published |
20080267329 | Synchronous Digital Data Transmission Interface - The field of the invention is that of transmission interfaces for synchronous digital input signals composed of bits transmitted in series at a frequency of transmission equal to a first integer multiple M of a first clock frequency. The interface according to the invention comprises at least one deserializer operating in over-sampling mode and supplying digital output samples of each bit in parallel. The output samples are transmitted at a second clock frequency, integer multiple N of a third frequency. The third frequency is substantially equal to the first frequency. Each sampled bit is substantially composed of N samples. The interface has an electronic device for frequency-locking the third frequency onto the first clock frequency. The device has means for counting the number of samples composing each sampled bit. The device also has incrementation-decrementation means for the third clock frequency configured in such a manner that the third clock frequency is increased when the number of samples is less than the integer multiple N and decreases when the number of samples is greater than N. | 10-30-2008 |
20100055966 | DEVICE FOR CONNECTING AN ELECTRONIC HOUSING IN A HOLDER THROUGH AT LEAST TWO TRANSLATION MOVEMENTS - The present invention relates to the field of devices for mounting and connecting an electronic module in a support comprising guidance and/or rotation means making it possible to position said module. The electronic module is designed to be slotted into an aircraft instrument panel. The module has: a rear face and a front face that are substantially flat and parallel. Means are provided for attaching the module to the instrument panel. The attachments are situated on the front face of the module. At least one connector-module can be plugged in and attached on the rear face of the module. The direction of plugging in the connector-module situated on the rear face is substantially in the plane of the rear face. The support comprises guidance and rotation means making it possible to guide, plug in and insert the module into the instrument panel. | 03-04-2010 |
20100231601 | Viewing Device Comprising an Electronic Means of Freezing the Display - The present invention is a device making it possible to guard against the effects of resetting components sensitive to electromagnetic radiation forming an LCD display device. The device consists of a component ( | 09-16-2010 |
20100289963 | Display Device for Aircraft Cockpit and Method for Managing a Video Data Network - The invention relates to a flat screen device (L | 11-18-2010 |
20110115388 | LIGHT-EMITTING DIODE LIGHTING DEVICE WITH REGULATED POWER SUPPLY CIRCUIT - The invention relates to lighting devices with light-emitting diodes organized in ramps arranged in parallel, each ramp including a certain quantity of light-emitting diodes arranged in series, the ramps being powered by a DC voltage of several tens of volts, called high voltage, the high voltage being generated by a step-up converter circuit from a low DC voltage of a few volts. The value of the voltage is controlled by the duty cycle of the step-up converter circuit, and the voltage is servocontrolled to a constant average value by a servocontrol device controlling the duty cycle. Each servocontrol device has several operating modes defined by a particular electronic addressing of the high voltage or by a defined number of ramps of lit diodes. To optimize the operation of the lighting device, the step-up converter circuit has discontinuous conduction and the servocontrol device includes several servocontrol electronic circuits linked to an electronic multiplexer, and each servocontrol electronic circuit being dedicated to a particular operating mode, the electronic characteristics of the servocontrol electronic circuits depending on the operating mode. The servocontrol electronic circuit is operational only when the operating mode is selected. | 05-19-2011 |
20110115732 | MULTIMODE TOUCHSCREEN DEVICE - The invention provides a touchscreen device including at least one multiplexed touchscreen, control electronics and acquisition and processing electronics, the touchscreen including a first rigid substrate having a plurality of conducting rows, a second flexible substrate having a plurality of conducting columns perpendicular to the rows. The control electronics has a generator of a high-frequency voltage for supplying a first multiplexer for addressing the plurality of conducting rows. The acquisition and processing electronics includes a second multiplexer for addressing the plurality of conducting columns and a synchronous demodulator which operates at the same frequency as the high-frequency voltage generator and delivers a plurality of output voltages on each column and calculation means making it possible to calculate the impedance existing between each output voltage and the input voltage. The acquisition and processing electronics also includes means for analysing the impedance making it possible to calculate its resistive part and its capacitive part. | 05-19-2011 |
20120223856 | Electromagnetic Emitter Emitting Simultaneously Along Three Orthogonal Axes to Detect Object Position and Orientation - An electromagnetic emission device for helmet position detection systems includes an electromagnetic emitter and control electronics, the emitter comprising three windings arranged perpendicularly, the processing electronics comprising three electronic chains each associated to a given winding and working simultaneously. Each electronic chain comprises closed-loop control means arranged such that the related signal generated comprises three analogue components: a first component, being the stimulus component, modulated at an “emission” frequency of the winding, each of the three emission frequencies being different from one winding to the next, and a second and a third component, referred to as correction components, modulated at an emission frequency of another winding, the phase and amplitude of which are calculated such as to compensate the parasitic signals received by said winding from the other two windings. Each winding in steady-state only emits electromagnetic radiation at its own emission frequency and at a predetermined phase and intensity. | 09-06-2012 |
20120319993 | MULTITOUCH TOUCH-SENSITIVE DEVICE WITH MULTIFREQUENCY CAPACITIVE DETECTION - The general field of the invention is that of touchscreen devices with projected capacitive detection comprising a matrix-form touch pad comprising conductive rows and columns, said pad being linked to control means and electronic reception and analysis means. The control means generate, for each conductive row and column, a first periodic emission voltage emitted at a first working frequency and a second periodic emission voltage emitted at a second discrimination frequency, different from the first frequency. The electronic reception and analysis means are arranged so as to determine, for each row and for each column, the impedance of a first reception voltage at the working frequency and the impedance of a second reception voltage at the discrimination frequency. According to predetermined values, the values of the two impedances are representative of a touch on the touch pad and its location on the row or on the column concerned. | 12-20-2012 |
20140313163 | MULTI-TOUCH TOUCH-SENSITIVE DEVICE WITH MULTI-FREQUENCY CAPACITIVE DETECTION COMPRISING MEANS OF FAULT DETECTION - The general field of the invention is that of touchscreen devices with projected capacitive detection comprising a touch-sensitive matrix panel comprising a plurality of conductive rows and conductive columns, said panel being connected to electronic control means. The electronic control means generate two periodic transmission voltages transmitted at two different frequencies. Analysis of the reception voltages is used to determine the positions of presses on the touch-sensitive panel, including when a row or column is cut. Pressing on a cut row or column is basically determined by calculating the barycentres of ‘virtual’ hollows in the reception voltages corresponding to this cut row or column. | 10-23-2014 |
20150029146 | CAPACITIVE TOUCHSCREEN DEVICE WITH MULTI-TOUCHSCREENS - The general field of the invention is that of devices with touchscreen of the capacitive type comprising two matrix touch pads connected to an electronic assembly comprising emission and receiving means. The emission means generate a plurality of emission signals at various frequencies. A period equal to the inverse of the said frequency being associated with each frequency, the values of the frequencies are such that there exist a plurality of integer numbers each associated with a frequency and with a period such that the product of each integer number with the associated period is a constant product. The receiving means comprise a synchronous amplitude demodulation arranged in such a manner as to perform the multiplication of the received signal by a plurality of periodic functions representative of each frequency, the multiplied signals obtained being integrated over an identical period of time corresponding to the said constant product, each signal thus integrated being representative of a received signal at a single given frequency. | 01-29-2015 |