Patent application number | Description | Published |
20090294067 | PRODUCTION LINE FOR HYDRAULIC BINDER-BASED, TAPERED-EDGE BOARDS - The subject of the invention is a novel plasterboard and its manufacturing processes. The novel board comprises, on one side, two first parallel feathered edges and, on the other side, two other, second, parallel feathered edges that are perpendicular to the first ones; or, on one side, two first parallel feathered edges and, either on the same side or on the other side, two second parallel feathered edges that are perpendicular to the first ones, the said other parallel feathered edges having a width of between 100 and 200 mm; or, on one side, two first parallel feathered edges and, either on the same side or on the other side, two second parallel feathered edges that are perpendicular to the first ones, the said second parallel feathered edges having a width such that the ratio of the width of the said second parallel feathered edges to the width of the said first parallel feathered edges is between 1.5 and 5. | 12-03-2009 |
20090301630 | PRODUCTION METHOD FOR HYDRAULIC BINDER-BASED, TAPERED-EDGE BOARDS - The subject of the invention is a novel plasterboard and its manufacturing processes. The novel board comprises, on one side, two first parallel feathered edges and, on the other side, two other, second, parallel feathered edges that are perpendicular to the first ones; or, on one side, two first parallel feathered edges and, either on the same side or on the other side, two second parallel feathered edges that are perpendicular to the first ones, the said other parallel feathered edges having a width of between 100 and 200 mm; or, on one side, two first parallel feathered edges and, either on the same side or on the other side, two second parallel feathered edges that are perpendicular to the first ones, the said second parallel feathered edges having a width such that the ratio of the width of the said second parallel feathered edges to the width of the said first parallel feathered edges is between 1.5 and 5. | 12-10-2009 |
Patent application number | Description | Published |
20080298489 | METHOD FOR ESTIMATING THE CHARACTERISTCS OF OFDM SIGNALS - This invention relates to a method for determining at least one characteristic of an OFDM signal within a received signal, characterised in that:
| 12-04-2008 |
20080299918 | Cognitive radio terminal - A cognitive telecommunication terminal designed to coexist with a primary telecommunication system using a set (B) of transmission frequencies comprising a plurality of spatially distributed transmitters, each transmitter being suitable for transmitting within a coverage area in a plurality of frequency bands in said set allocated to the transmitter. The terminal comprises positioning means, a database storing information defining the coverage area for each transmitter, calculation means suitable for determining the maximum power that the terminal can transmit for each frequency band in said set, and for sorting frequency bands as a function of the maximum powers thus obtained. Finally, the terminal comprises radio transmission/reception means suitable for detecting the presence of a signal in the frequency bands thus sorted, beginning with the frequency band associated with the highest maximum power. | 12-04-2008 |
20090067521 | BLIND ESTIMATION METHOD OF OFDM MODULATION PARATMETERS - The present invention concerns a blind estimation method of at least one temporal modulation parameter of an OFDM signal, in which a plurality of demodulation attempts of said OFDM signal are carried out using a plurality of respective values of this temporal parameter and, for each demodulation attempt, a cost function representative of the entropy of the demodulated signal is calculated, the estimate of said temporal parameter then being obtained as the value of this parameter minimising said cost function. | 03-12-2009 |
20090111478 | METHOD OF SEARCHING FOR FREE BAND FOR A COGNITIVE TELECOMMUNICATION TERMINAL - This invention relates to a method of searching for free band using a cognitive telecommunication terminal operating in a zone covered by a primary telecommunication system using a plurality of frequency bands (B). The terminal classifies said bands as a function of their conditional probabilities of being available (p(b | 04-30-2009 |
20090296841 | METHOD FOR DETECTING AN OFDM SIGNAL - The present invention relates to a method for detecting the presence of an OFDM signal in a received signal wherein said received signal is down converted into baseband and subjected to a passband filtering corresponding to a band of interest before being sampled. The thus sampled signal is subjected to a second filtering for eliminating at least one interfering line in the band of interest. The presence of an OFDM signal is detected if the signal filtered by the second filtering is cyclostationary. | 12-03-2009 |
20100189161 | METHOD FOR DETECTING THE PRESENCE OF SPREAD SPECTRUM SIGNALS - The present invention relates to a method for detecting the presence or the absence of a spread spectrum signal in a frequency band of interest of a received signal, wherein:
| 07-29-2010 |
20100195705 | METHOD FOR DETECTING CYCLOSTATIONARY SIGNALS - A method for detecting a cyclostationary signal in a signal to be analyzed, received from a transmitter by a receiver or read from a recording medium by a reader device. According to this method, the value of a discrimination function J is estimated, expressed as a quadratic form of the cyclic correlation coefficients of the signal to be analyzed for a set (I* | 08-05-2010 |
20110228830 | METHOD FOR THE ESTIMATION OF OFDM PARAMETERS BY ADAPTATION OF COVARIANCE - This invention relates to a method for the blind or semi-blind estimation of at least one modulation parameter of an OFDM signal utilising a method for adapting the covariance. According to this method, a plurality of values of this parameter are tested by calculating, for each of these values, a distance between a covariance matrix of vectors composed of samples of the signal and a theoretical covariance matrix. The estimated value of the parameter is the tested value which achieves the shortest distance. Said method provides a very good rate of good estimates, even when the OFDM prefix is short or absent. Furthermore, it makes it possible to obtain a joint estimation of several time parameters and, where applicable, of the signal-to-noise ratio. | 09-22-2011 |
20110293026 | METHOD FOR THE BLIND ESTIMATION OF OFDM MODULATION PARAMETERS ACCORDING TO A MAXIMUM LIKELIHOOD CRITERION - The present invention relates to a method for blind estimation of at least one parameter of an OFDM signal according to a maximum likelihood (ML) criterion. In one embodiment, the estimation method uses a deterministic maximum likelihood criterion. In another embodiment, the estimation method assumes that the modulation symbols modulating the sub-carriers of the OFDM multiplex are i.i.d. and Gaussian random variables. The estimation of said parameter is carried out while minimizing a cost function depending on the chosen criterion. | 12-01-2011 |
20110305302 | METHOD FOR THE BLIND ESTIMATION OF OFDM SIGNAL PARAMETERS BY ADAPTED FILTERING - The present invention relates to a method for the blind estimation of at least one parameter of an OFDM signal by maximizing an objective function depending on said parameter. The objective function implements a parameterized model of the OFDM modulation and a matched filtering corresponding to that model. The OFDM signal, baseband demodulated and then sampled in an observation window, is the object of the adapted filtering to calculate the objective function. | 12-15-2011 |
20120072165 | SYSTEM AND METHOD FOR OBSERVING THE SWIMMING ACTIVITY OF A PERSON - A system for observing a swimming activity of a person includes a waterproof housing (BET) having a motion sensor (MS), and is furnished with fixing means (BEL) for securely fastening the housing (BET) to a part of the body of a user. The system has analysis means (AN) for analyzing the signals transmitted by the motion sensor (MS) to at least one measurement axis and which are adapted for determining the type of swimming of the user as a function of time by using a hidden Markov model with N states corresponding respectively to N types of swimming. | 03-22-2012 |
20120078594 | SYSTEM AND METHOD FOR OBSERVING A PERSON'S WALKING ACTIVITY - A system for observing a walking activity of a person comprises a device (DISP) adapted for delivering at output, for a footstep of the person, a first difference of angular speeds of the corresponding tibia between the instant at which the heel of the foot is planted and the instant at which the foot is laid flat, a second difference of angular speeds of the corresponding tibia between the instant at which the heel of the foot is planted and the instant at which the last toe of the foot is lifted, and an angular speed of the corresponding tibia at the instant at which the foot is laid flat. The system comprises analysis means (AN) for analyzing the signals delivered by the device and adapted for determining a type of walking of the user as a function of time by using a hidden Markov model with N states corresponding respectively to N types of walking. | 03-29-2012 |
20120101785 | SYSTEM AND METHOD FOR DETERMINING THE ACTIVITY OF A PERSON LYING DOWN - The system for determining the activity of a person lying down has at least one motion sensor (CM) having at least one measurement axis, which is provided with a fastener (MF) for firmly connecting the motion sensor (CM) to a user. The system includes a filter (FILT) for selecting, for at least one measurement axis of the motion sensor (CM), a high-frequency signal (HF) and a low-frequency signal (BF); a first calculation unit (CALC | 04-26-2012 |
20120128086 | IDENTIFICATION METHOD OF AN OFDM SIGNAL - An OFDM signal identification method in a received signal, wherein the received signal is sampled and cut off into blocks of P samples, each block being subjected to an inverse Fourier transform to obtain a plurality of symbols at a plurality of frequencies. For each frequency of the plurality, the kurtosis of the set of symbols thus obtained at this frequency is calculated, and then it is determined whether the kurtosis has a periodicity in frequency domain from kurtosis values calculated for the frequencies of the plurality, and the presence of an OFDM signal in the received signal is identified if the kurtosis has such a periodicity. | 05-24-2012 |
20120143094 | SYSTEM AND METHOD FOR DETERMINING THE POSTURE OF A PERSON - A system for determining the posture of a person has a motion sensor (CM) with at least one axis of measurement, which is provided with fixing means (MF) for rigidly connecting said motion sensor (CM) to a user. Analysis means (AN) are also included for determining a posture of the user. The analysis means (AN) utilize: (A) joint densities of probabilities of a low-frequency component and a high-frequency component, these densities of probabilities being defined for each posture; and (B) probabilities of transition between two successive postures. | 06-07-2012 |
20120158351 | SYSTEM AND METHOD FOR DETERMINING THE ACTIVITY OF A MOBILE ELEMENT - System for determining the activity of a mobile element (EM), includes at least one motion sensor (CM) having at least one measurement axis, which is provided with a fattener (MF) for securely connecting said motion sensor (CM) to the mobile element (EM). The system further includes a filter (FILT) for selecting, for each measurement axis of the motion sensor, high frequencies above a first threshold (S | 06-21-2012 |
20120165705 | SYSTEM AND METHOD FOR DETECTING AN EPILEPTIC SEIZURE IN A PRONE EPILEPTIC PERSON - A system for detecting an epileptic seizure in a prone person, comprising:
| 06-28-2012 |
20120185204 | METHOD FOR ESTIMATING THE DIRECTION OF A MOVING SOLID - The invention relates to a method for estimating the orientation in an inertial reference frame of a solid in motion equipped with an accelerometer and a magnetometer which are mounted on said solid. | 07-19-2012 |
20130238543 | SENSOR DETECTION DEVICE, CORRESPONDING DETECTION METHOD AND COMPUTER PROGRAM - A device detecting at least one scenario from predetermined scenarios wherein a physical system observed by at least one sensor is likely to be found, including: at least one sensor providing a physical system observation data sequence; a storage storing at least one statistical model associating possible observation data values with the predetermined scenarios; a computer programmed to select at least one of the scenarios based on the observation data sequence and at least one statistical model. The storage includes plural statistical models broken down into plural ordered levels between an input level, wherein each statistical model associates possible values of at least a portion of the observation data with intermediate states for the statistical model, and an output level, wherein each statistical model associating possible values of at least a portion of the intermediate states of a lower level with at least a portion of the predetermined scenarios. | 09-12-2013 |
20140365163 | METHOD OF DETECTING ACTIVITY WITH A MOTION SENSOR, AND CORRESPONDING DEVICE AND COMPUTER PROGRAM - This method for detecting activity (A) of a physical system carrying a motion sensor comprises the following steps: extracting ( | 12-11-2014 |
20150073746 | DEVICE AND METHOD FOR IDENTIFYING A CYCLIC MOVEMENT AND CORRESPONDING COMPUTER PROGRAM - A device identifying a cyclic movement type of a physical system from a set of possible cyclic movements types includes: a movement sensor providing an observation data sequence concerning the physical system; a storage storing at least one statistical hidden-state Markov model; and a computer programmed to analyze the observation data sequence and select one cyclic movement type based on the stored statistical model. The storage includes least one statistical hidden-state Markov model for each possible cyclic movement type and the computer is programmed to analyze compatibility of the observation data sequence with each possible cyclic movement type based on the statistical model associated with this cyclic movement type. The computer is further programmed to provide a sequence of hidden states of the statistical model associated with the selected cyclic movement type, based on the observation data sequence and the statistical model associated with the selected cyclic movement type. | 03-12-2015 |
20150133889 | CLOSED LOOP SYSTEM FOR CONTROLLING THE REFLUX OF A FLUID INJECTION - The invention describes a system for injecting and controlling a flow of liquid to be injected, comprising:
| 05-14-2015 |