PARROT Patent applications |
Patent application number | Title | Published |
20150216411 | METHODS AND DEVICES FOR INTERACTIVE ADJUSTMENT OF A PARAMETER OF A CONTINUOUSLY VARIABLE OPTICAL LENS - A method for interactive adjustment of a parameter of a continuously variable optical lens involving having a subject view an eye chart through a variable lens frame comprising at least one continuously variable optical lens, applying a modulation to a selected parameter of said continuously variable optical lens around an average value, and tuning said average value by minimizing the flickering visible to the subject and due to the modulation. | 08-06-2015 |
20140343945 | METHOD OF VISUAL VOICE RECOGNITION BY FOLLOWING-UP THE LOCAL DEFORMATIONS OF A SET OF POINTS OF INTEREST OF THE SPEAKER'S MOUTH - The method comprises steps of: a) for each point of interest of each image, calculating a local gradient descriptor and a local movement descriptor; b) forming microstructures of n points of interest, each defined by a tuple of order n, with n≧1; c) determining, for each tuple of a vector of structured visual characteristics (d | 11-20-2014 |
20140343944 | METHOD OF VISUAL VOICE RECOGNITION WITH SELECTION OF GROUPS OF MOST RELEVANT POINTS OF INTEREST - The method comprises steps of: a) forming a starting set of microstructures of n points of interest, each defined by a tuple of order n, with n≧1; b) determining, for each tuple, associated structured visual characteristics, based on local gradient and/or movement descriptors of the points of interest; and c) iteratively searching for and selecting the most discriminant tuples. Step c) operates by: c1) applying to the set of tuples an algorithm of the Multi-Kernel Learning MKL type; c2) extracting a sub-set of tuples producing the highest relevancy scores; c3) aggregating to these tuples an additional tuple to obtain a new set of tuples of higher order; c4) determining structured visual characteristics associated to each aggregated tuple; c5) selecting a new sub-set of most discriminant tuples; and c6) reiterating steps c1) to c5) up to a maximal order N. | 11-20-2014 |
20140244245 | METHOD FOR SOUNDPROOFING AN AUDIO SIGNAL BY AN ALGORITHM WITH A VARIABLE SPECTRAL GAIN AND A DYNAMICALLY MODULATABLE HARDNESS - The method comprises, in the frequency domain: estimating ( | 08-28-2014 |
20140082342 | AUDIO/VIDEO ELECTRONIC EQUIPMENT, SUCH AS A MULTIMEDIA CAR RADIO, INSTALLABLE IN AN AUTOMOTIVE VEHICLE - The equipment comprises a digital processor implementing an operating system requiring a previous boot before the equipment is in an operational state. A start module is operable, when the device is initially in a power-off state, for: producing a triggering signal upon detection ( | 03-20-2014 |
20140079256 | ONE-PIECE ACTIVE ACOUSTIC LOUDSPEAKER ENCLOSURE CONFIGURABLE TO BE USED ALONE OR AS A PAIR, WITH REINFORCEMENT OF THE STERO IMAGE - The loudspeaker enclosure ( | 03-20-2014 |
20130343558 | METHOD FOR DENOISING AN ACOUSTIC SIGNAL FOR A MULTI-MICROPHONE AUDIO DEVICE OPERATING IN A NOISY ENVIRONMENT - This method comprises steps of: a) partitioning ( | 12-26-2013 |
20130325217 | ALTITUDE ESTIMATOR FOR A ROTARY-WING DRONE WITH MULTIPLE ROTORS - The drone comprises altitude determination means ( | 12-05-2013 |
20130301109 | ELECTROWETTING OPTICAL DEVICE - An electrowetting optical device is provided comprising a conductive liquid and a non-conductive liquid, the liquids being non miscible, having different refractive indices and forming an interface, wherein the conductive liquid comprises from 5% by weight of a fluorinated salt, based the total weight of the conductive liquid. An apparatus comprising said electrowetting optical device is described as well. | 11-14-2013 |
20130230191 | METHOD FOR ENHANCING LOW FREQUENCES IN A DIGITAL AUDIO SIGNAL - The method comprises the steps of: a) converting the digital audio signal (PCM) into a voltage signal (V | 09-05-2013 |
20130176423 | METHOD FOR PILOTING A ROTARY WING DRONE FOR TAKING AN EXPOSURE THROUGH AN ONBOARD CAMERA WITH MINIMIZATION OF THE DISTURBING MOVEMENTS - The drone ( | 07-11-2013 |
20130175905 | AUDIO/VIDEO ELECTRONIC APPARATUS, IN PARTICULAR A MULTIMEDIA CAR RADIO, WITH A REMOVABLE FRONT PANEL - The apparatus comprises: a case ( | 07-11-2013 |
20130173088 | METHOD FOR THE INTUITIVE PILOTING OF A DRONE BY MEANS OF A REMOTE CONTROL - The user inclines the apparatus ( | 07-04-2013 |
20130147265 | COMBINED WIRED AND WIRELESS REMOTE CONTROL FOR "HANDS-FREE" MULTIMEDIA AND TELEPHONY EQUIPMENT OF A MOTOR VEHICLE - A remote control unit carries control keys and possesses in its back face a battery housing with central and peripheral power supply contacts, and also with signal transmission contacts. An active support carries a portion in relief suitable for penetrating into the housing of the unit to take the place of the power supply battery. Two power supply terminals are connected to a power supply line and arranged so as to bear against the respective power supply contacts of the unit when the portion in relief is inserted and locked in the housing of the unit, with the same applying for signal transmission terminals that are arranged on the portion in relief in positions that correspond to the transmission contacts of the unit. | 06-13-2013 |
20130129105 | AUDIO HEADSET WITH ACTIVE NOISE CONTROL OF THE NON-ADAPTIVE TYPE FOR LISTENING TO AN AUDIO MUSIC SOURCE AND/OR FOR "HANDS-FREE" TELEPHONY FUNCTIONS - The headset comprises two earpieces each having a transducer for playing back the sound of an audio signal and received in an acoustic cavity defined by a shell having an ear-surrounding cushion. The active noise control comprises, in parallel, a feedforward bandpass filter receiving the signal from an external microphone, a feedback bandpass filter receiving as input an error signal delivered by an internal microphone, and a stabilizer bandpass filter locally increasing the phase of the transfer function of the feedback filter in an instability zone, in particular a waterbed effect zone around 1 kHz. A summing circuit delivers a weighting linear combination of the signal delivered by these filters together with the audio signal to be played back. Control is non-adaptive, with the parameters of the filters being static. | 05-23-2013 |
20130006448 | METHOD OF DYNAMICALLY CONTROLLING THE ATTITUDE OF A DRONE IN ORDER TO EXECUTE A FLIP TYPE MANEUVER AUTOMATICALLY - This method controls the drone in order to flip through a complete turn about its roll axis or its pitching axis. It comprises the steps of: a) controlling its motors simultaneously so as to impart a prior upward vertical thrust impulse to the drone; b) applying different and non-servo-controlled commands to the motors so as to produce rotation of the drone about the axis of rotation of the flip, from an initial angular position to a predetermined intermediate angular position; and then c) applying individual control to the motors, servo-controlled to a reference target trajectory, so as to finish off the rotation of the drone through one complete turn about the axis of rotation, progressively from the intermediate angular position with a non-zero angular velocity to a final angular position with a zero angular velocity. | 01-03-2013 |
20120322511 | DE-NOISING METHOD FOR MULTI-MICROPHONE AUDIO EQUIPMENT, IN PARTICULAR FOR A "HANDS-FREE" TELEPHONY SYSTEM - This method comprises the following steps in the frequency domain:
| 12-20-2012 |
20120310637 | AUDIO EQUIPMENT INCLUDING MEANS FOR DE-NOISING A SPEECH SIGNAL BY FRACTIONAL DELAY FILTERING, IN PARTICULAR FOR A "HANDS-FREE" TELEPHONY SYSTEM - The equipment comprises two microphones, sampling means, and de-noising means. The de-noising means are non-frequency noise reduction means comprising a combiner having an adaptive filter performing an iterative search seeking to cancel the noise picked up by one of the microphones on the basis of a noise reference given by the other microphone sensor. The adaptive filter is a fractional delay filter modeling a delay that is shorter than the sampling period. The equipment also has voice activity detector means delivering a signal representative of the presence or the absence of speech from the user of the equipment. The adaptive filter receives this signal as input so as to enable it to act selectively: i) either to perform an adaptive search for the parameters of the filter in the absence of speech; ii) or else to “freeze” those parameters of the filter in the presence of speech. | 12-06-2012 |
20120310339 | ELECTRONICALLY CONTROLLED FOCUSING OPHTHALMIC DEVICE - According to a first aspect, the invention relates to an electrically controlled focusing ophthalmic device ( | 12-06-2012 |
20120284023 | METHOD OF SELECTING ONE MICROPHONE FROM TWO OR MORE MICROPHONES, FOR A SPEECH PROCESSOR SYSTEM SUCH AS A "HANDS-FREE" TELEPHONE DEVICE OPERATING IN A NOISY ENVIRONMENT - The method comprises the steps of: digitizing sound signals picked up simultaneously by two microphones (N, M); executing a short-term Fourier transform on the signals (x | 11-08-2012 |
20120278070 | COMBINED MICROPHONE AND EARPHONE AUDIO HEADSET HAVING MEANS FOR DENOISING A NEAR SPEECH SIGNAL, IN PARTICULAR FOR A " HANDS-FREE" TELEPHONY SYSTEM - The headset comprises: a physiological sensor suitable for being coupled to the cheek or the temple of the wearer of the headset and for picking up non-acoustic voice vibration transmitted by internal bone conduction; lowpass filter means for filtering the signal as picked up; a set of microphones picking up acoustic voice vibration transmitted by air from the mouth of the wearer of the headset; highpass filter means and noise-reduction means for acting on the signals picked up by the microphones; and mixer means for combining the filtered signals to output a signal representative of the speech uttered by the wearer of the headset. The signal of the physiological sensor is also used by means for calculating the cutoff frequency of the lowpass and highpass filters and by means for calculating the probability that speech is absent. | 11-01-2012 |
20120241555 | SUPPORT BLOCK FOR A MOTOR OF A ROTARY WING DRONE - The support block ( | 09-27-2012 |
20120234969 | NAVIGATION ELECTRONIC CARD SUPPORT FOR A ROTARY WING DRONE - The support ( | 09-20-2012 |
20120232718 | METHOD OF PILOTING A MULTIPLE ROTOR ROTARY-WING DRONE TO FOLLOW A CURVILINEAR TURN - The respective motors of the drone ( | 09-13-2012 |
20120208604 | WIRELESS REMOTE CONTROL WITH A TOUCH INTERFACE FOR HANDS-FREE TELEPHONY AND MULTIMEDIA EQUIPMENT OF A MOTOR VEHICLE - The remote control includes a central button and side buttons. Touch sensors are associated with each of the buttons, with the central button being associated with a multizone touch pad that is activatable in different manners as a function of the movement of the finger over said pad. A set of pushbutton electromechanical switches is provided, comprising a central switch and one side switch in common for the buttons of each pair of side buttons. Selector means serve, on detecting a state transition of a side switch, to select a control signal as a function of that one of the touch sensors that is activated by contact with one of the side buttons associated with the switch. The movement of the finger over the central button is analyzed in order to distinguish between rectilinear movement and circular movement of the finger, and in order to determine the direction of said movement. | 08-16-2012 |
20120172087 | ARCHITECTURE OF A MULTIMEDIA AND HANDS-FREE PHONE EQUIPMENT FOR A MOTOR VEHICLE - The equipment comprises a pilot box ( | 07-05-2012 |
20120168477 | SYSTEM FOR ATTACHING THE REMOTE CONTROL OF AN ELECTRONIC CONTROL UNIT IN A MOTOR VEHICLE - The remote control ( | 07-05-2012 |
20120163125 | METHOD OF ULTRASOUND TELEMETRY FOR DRONES, WITH DISCRIMINATION OF SPURIOUS ECHOES EMANATING FROM ANOTHER DRONE - The method comprises: a) the emission of an ultrasound burst repeated at a predetermined recurrence frequency; and b) after each emission and for the duration of a time frame (n−1, n, n+1, . . . ) separating two consecutive emissions, the reception of a plurality of successive signal spikes appearing in the course of the same frame. These spikes include spurious spikes (E′ | 06-28-2012 |
20120091260 | METHOD OF PILOTING A ROTARY WING DRONE HAVING MULTIPLE ROTORS - This method implements a transition from i) moving state in which the drone is flying at speed and tilt angle that are not zero to ii) hovering state in which the drone has speed and tilt angle that are both zero. The method comprises: a) measuring horizontal linear speed, tilt angles, and angular speeds at the initial instant; b) setting stopping time value; c) on the basis of initial measurements and set stopping time, parameterizing a predetermined predictive function that models optimum continuous decreasing variation of horizontal linear speed as a function of time; d) applying setpoint values to a loop for controlling motors of the drone, which values correspond to target horizontal linear speed precalculated from said parameterized predictive function; and e) once hovering state has been reached, activating a hovering flight control loop for maintaining drone at speed and tilt angle that are zero relative to the ground. | 04-19-2012 |
20110311099 | METHOD OF EVALUATING THE HORIZONTAL SPEED OF A DRONE, IN PARTICULAR A DRONE CAPABLE OF PERFORMING HOVERING FLIGHT UNDER AUTOPILOT - The method operates by estimating the differential movement of the scene picked up by a vertically-oriented camera. Estimation includes periodically and continuously updating a multiresolution representation of the pyramid of images type modeling a given picked-up image of the scene at different, successively-decreasing resolutions. For each new picked-up image, an iterative algorithm of the optical flow type is applied to said representation. The method also provides responding to the data produced by the optical-flow algorithm to obtain at least one texturing parameter representative of the level of microcontrasts in the picked-up scene and obtaining an approximation of the speed, to which parameters a battery of predetermined criteria are subsequently applied. If the battery of criteria is satisfied, then the system switches from the optical-flow algorithm to an algorithm of the corner detector type. | 12-22-2011 |
20110301787 | METHOD OF SYNCHRONIZED CONTROL OF ELECTRIC MOTORS OF A REMOTE- CONTROLLED ROTARY WING DRONE SUCH AS A QUADRICOPTER - Each motor is controlled by a microcontroller and the set of microcontrollers is driven by a central controller. According to the invention, said method comprises: a preliminary step consisting at least in establishing an asynchronous serial communications link over a line between the central controller and each of the microcontrollers, and in allocating an address parameter to each microcontroller; and in operation, at least a control step proper consisting: i) for the central controller, in sending simultaneously on each link line a message containing at least one instruction specified by the address parameter of a destination microcontroller that is to execute said instruction; and ii) for each destination microcontroller, in extracting the instruction addressed thereto from said message, and executing it. | 12-08-2011 |
20110299732 | SYSTEM OF DRONES PROVIDED WITH RECOGNITION BEACONS - The present invention relates to a system ( | 12-08-2011 |
20110288696 | DEVICE FOR PILOTING A DRONE - The device ( | 11-24-2011 |
20110221692 | METHOD AND AN APPLIANCE FOR REMOTELY CONTROLLING A DRONE, IN PARTICULAR A ROTARY WING DRONE - The appliance comprises a touch screen and wireless data transmission means for communicating with the drone. Drone piloting commands are activated by one or two fingers making contact with and/or moving over the locations of corresponding piloting symbols displayed on the screen. The method proceeds by: a) detecting finger contact at an arbitrary contact point in at least one predefined zone of the screen on which piloting symbols are not already displayed; b) displaying a piloting icon on the screen at said contact point, the piloting icon comprising a movable icon displayed at a position that tracks any movement of the finger contact point over the screen from an initial position to an offset position; c) detecting the movement of the movable icon; d) on detecting said movement, analyzing the direction and/or the amplitude of the movement relative to the initial position; and e) activating a piloting command as a function of the result of said analysis. | 09-15-2011 |
20110129100 | AUDIO/VIDEO APPLIANCE OF IMPROVED ERGONOMICS AND EXTRACTABILITY FOR INCORPORATING IN A MOTOR VEHICLE, IN PARTICULAR A CAR RADIO - The assembly comprises: a car radio with a housing and a removable half front plate; a mounting sheath; means for securing the housing in the sheath; and means for unlocking the housing, said means comprising a tool suitable for being inserted in at least two orifices formed in the front face of the housing. These two orifices are formed in a central zone of the housing that is hidden by the front plate when it is mounted on the housing, and that is visible when the front plate is separated from the housing. The assembly has essentially no peripheral cover fitted thereto. The U-shaped tool makes it easy to extract the car radio using one hand in a single movement. | 06-02-2011 |
20110129048 | SYNCHRONIZED SYSTEM FOR DISTRIBUTING AND PROCESSING SIGNALS, IN PARTICULAR AUDIO SIGNALS IN A WIRELESS LOUDSPEAKER NETWORK - The system comprises a master device ( | 06-02-2011 |
20110070926 | OPTIMIZED METHOD OF FILTERING NON-STEADY NOISE PICKED UP BY A MULTI-MICROPHONE AUDIO DEVICE, IN PARTICULAR A "HANDS-FREE" TELEPHONE DEVICE FOR A MOTOR VEHICLE - In the frequency domain, the method comprises the following steps:
| 03-24-2011 |
20110054891 | METHOD OF FILTERING NON-STEADY LATERAL NOISE FOR A MULTI-MICROPHONE AUDIO DEVICE, IN PARTICULAR A "HANDS-FREE" TELEPHONE DEVICE FOR A MOTOR VEHICLE - The method comprises the following steps in the frequency domain:
| 03-03-2011 |
20110049290 | METHOD OF PILOTING A ROTARY-WING DRONE WITH AUTOMATIC STABILIZATION OF HOVERING FLIGHT - This method, applicable in particular to radio-controlled toys comprises the operations consisting in: fitting the drone with a telemeter and a video camera; acquiring the altitude of the drone relative to the ground by means of a telemeter; acquiring the horizontal speed of the drone; and automatically stabilizing the drone in hovering by: servo-controlling the vertical thrust force of the drone so as to stabilize the altitude acquired by the telemeter; and servo-controlling the horizontal thrust force of the drone so as to obtain zero horizontal speed. The video camera is a front-sight camera pointing towards the front of the drone; and the horizontal speed of the drone is acquired from a plurality of video images captured by said front-sight camera. | 03-03-2011 |
20100325323 | AUTOMATIC SOURCE CONCENTRATOR FOR A MULTIMEDIA SYSTEM - The concentrator couples a plurality of digital and analog sources to an audio/video reader system suitable for reading one of the sources. Each available source is associated with a source identifier and an activated or deactivated state flag, as a result of the user taking action on a source. A register ( | 12-23-2010 |
20100178966 | A METHOD OF RECOGNIZING OBJECTS IN A SHOOTER GAME FOR REMOTE-CONTROLLED TOYS - The invention relates to a method of recognizing objects for a video shooter game, the system comprising a first remote-controlled vehicle ( | 07-15-2010 |
20100171430 | AUTOMATICALLY CONTROLLED LIGHTING DEVICE, AND AN INSTALLATION INCLUDING A PLURALITY OF SUCH DEVICES - The lighting device ( | 07-08-2010 |
20100166199 | ACOUSTIC ECHO REDUCTION CIRCUIT FOR A "HANDS-FREE" DEVICE USABLE WITH A CELL PHONE - The device comprises: a circuit for picking up acoustic signals with the microphone ( | 07-01-2010 |
20100109493 | AUDIO/VIDEO ELECTRONIC APPLIANCE, IN PARTICULAR A CAR RADIO, HAVING A REMOVABLE FRONT PLATE - The appliance comprises a casing, a removable front plate, an electrical connector, and mechanical means for assembling the front plate on the casing and for fastening it thereto. The mechanical means comprise, at a first end, means that form a separable hinge comprising at least one pair of respective magnetic elements such as permanent magnets disposed in the region of the connector and facing one another on the casing and the front plate, and the opposite end, means for locking the front plate to the casing. Mechanical coupling of the front plate on the casing at the location of the separable magnetic hinge results solely from the mutual attraction of the facing magnetic elements. | 05-06-2010 |
20100062817 | METHOD OF DEFINING A COMMON FRAME OF REFERENCE FOR A VIDEO GAME SYSTEM - The invention relates to a method of defining a common frame of reference for a video game system. The system comprises at least two remotely-controlled vehicles ( | 03-11-2010 |
20100060808 | DIGITAL IMAGE DISPLAY DEVICE - The display device ( | 03-11-2010 |
20100029345 | ACOUSTIC ECHO REDUCTION CIRCUIT FOR A "HANDS-FREE" DEVICE USABLE WITH A CELL PHONE - The device comprises: a circuit for picking up acoustic signals with the microphone ( | 02-04-2010 |
20100009735 | METHOD OF DISPLAY ADJUSTMENT FOR A VIDEO GAME SYSTEM - The invention relates to a method of display adjustment ( | 01-14-2010 |
20090323983 | Method and a system for reconstituting low frequencies in audio signal - The method comprises the steps of: filtering the audio signal by means of a lowpass filter ( | 12-31-2009 |
20090310796 | METHOD OF REDUCING RESIDUAL ACOUSTIC ECHO AFTER ECHO SUPPRESSION IN A "HANDS-FREE" DEVICE - The method comprises, in the time domain, echo cancellation processing ( | 12-17-2009 |
20090304191 | AUTOMATIC GAIN CONTROL SYSTEM APPLIED TO AN AUDIO SIGNAL AS A FUNCTION OF AMBIENT NOISE - An automatic gain control system applied to a audio signal as a function of the ambient noise, the system comprising: an ambient noise estimator module suitable for establishing a current noise value estimated at least from a signal provided by a microphone; and an automatic gain control module suitable for applying to the audio signal gain of a value that is determined as a function of the current noise value received from the ambient noise estimator module. According to the invention, the ambient noise estimator module comprises an MCRA estimator suitable for establishing the current noise value from a signal provided by the microphone picking up the real noise, the echo of the music, and where appropriate speech. The system also includes a module for estimating the power of the audio signal and suitable for providing the automatic gain control module with a current power value for the audio signal. | 12-10-2009 |
20090284553 | METHOD OF DEFINING A GAME ZONE FOR A VIDEO GAME SYSTEM - The invention relates to a method of defining a game zone for a video game system. The system comprises a remotely-controlled vehicle ( | 11-19-2009 |