Thales

Yves Sontag

Philippe Coni

Jean-Christophe Abadie

Eric Rauscent

Michael Guffroy

Laurent Jardin

Frédéric Renaud

Ludovic Pennetier

Sylvain Lalanne

A device with touch surface with projected capacitive detection comprising a matrix touchscreen comprises a plurality of conductive rows and of conductive columns, the screen linked to electronic control means generating, for each conductive row and for each conductive column, transmission signals and electronic means for receiving and analyzing the reception signals from each conductive row and from each conductive column. Each row of the device comprises, at one of its ends, first means for generating a first transmission signal and first means for receiving a first reception signal and, at its opposite end, second means for generating a second transmission signal and second means for receiving a second reception signal, the first transmission signal and the second transmission signal being synchronous, having the same frequency, the same amplitude and the same phase.

Matrix touch surface of large dimensions comprising double injection electronics of the rows or of the columns

The invention relates to a power transmission device capable of transmitting electricity supplied by an electricity source to at least one powered device connected to said transmission device by means of a communication network, via at least one data transmission cable including at least one pair of conductors, the electrical current being conveyed on the at least one pair of conductors. The power transmission device according to the invention includes, for each connected powered device, a protection device capable of tripping to protect the electricity source in case of electrical malfunction of the powered device as well as balancing of the electricity conveyed on the at least one pair of conductors, said protection device including at least one shared component contributing both to performing said trip and said balancing.

Power over data transmission

The general field of the invention is that of capacitive dongles used with visualization devices including a capacitive touch-sensitive surface comprising a matrix of conductive rows and columns, the dongle being arranged on said touch-sensitive surface in operational use, the dongle operating in send mode and in receive mode, The dongle according to the invention includes:

Capacitive dongle for visualization devices including a capacitive touch-sensitive surface

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.

Electromagnetic emitter emitting simultaneously along three orthogonal axes to detect object position and orientation

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 barycenters of 'virtual' hollows in the reception voltages corresponding to this cut row or column.

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 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.

Multitouch touch-sensitive device with multifrequency capacitive detection

Systems for transmitting and receiving signals of video digital images for links of the 'LVDS' type comprise a transmit module, a transmission link and a receive module. The 'RGB' video signal comprises the colour and synchronization signals and a clock signal. The &#x201c;LVDS&#x201d; video signal transmitted via the transmission link comprises several primary signals, the first primary signal dedicated to the clock signal, the second primary signal comprising the synchronization information, the other primary signals comprising only the colour encoding information. The function of the &#x201c;LVDS&#x201d; transmit module is to encode the &#x201c;RGB&#x201d; video signal into an &#x201c;LVDS&#x201d; video signal and the function of the receive module is to decode the &#x201c;LVDS&#x201d; signal into an &#x201c;RGB&#x201d; signal. The system comprises the following particular arrangements: the transmission system having a means making it possible to inlay a graphic recognition pattern in the &#x201c;RGB&#x201d; video signal; the receive means operating in oversampling and having a test means capable of identifying the synchronization information and the graphic recognition pattern.

System for transmitting and receiving video digital signals for links of the 'LVDS' type

An 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 is attached on the rear face of the electronic module and can be plugged into a socket mounted on the panel as the electronic module is guided into position on the panel. 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.

Device for connecting an electronic housing in a holder through at least two translation movements

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.

Synchronous digital data transmission interface

The field of the invention is that of serial digital data transmissions. Such digital data is, in particular, of video type. In certain types of transmission, the links used cannot pass direct current. Such is the case in particular with the so-called 'AC-coupled' links used in aeronautics for transferring video signals between computers. In this case, it becomes essential to transmit binary words comprising, if possible, similar quantities of zeroes and ones. The subject of the invention is an encoder or a decoder of 9-bit binary words into 10-bit binary words, said 10-bit binary words being designed to be transmitted over links that cannot pass direct current, said binary words comprising between four ones and six ones regardless of the initial 9-bit binary word.

9-bit to10-bit encoder and decoder

The field of the invention is that of connector sockets for electronic boards providing both electrical and optical connection. These connectors are more specifically dedicated to aeronautical applications. The invention relates to a connector socket for an electronic board comprising a mechanical frame, electrical contacts and at least one rigid optical contact placed in a seat of the mechanical frame, the optical contact being essentially comprised of one or two optomechanical ferrules. The inventive socket makes it possible to avoid the use of linking optical fibers between the socket and the optoelectronic conversion modules, while eliminating the drawbacks of integrating of optoelectronic conversion devices in the socket.

Growing community of inventors

Bordeaux, France

Yves Sontag