Patents by Inventor Rozenn Nicol

Rozenn Nicol has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220256302
    Abstract: A sound capture device is disclosed, including plural microphone capsules, distributed over portion P of sphere S circumscribed between two or three planes perpendicular to each other, the three planes intersecting at a point corresponding to the center of the sphere S, and the two planes intersecting at a straight line passing through the center of the sphere S, and the sphere portion P being such that P=n S/8, with n=1,2; and a processing unit connected to the capsules to receive the signals captured by the capsules. The processing unit is arranged to matrix the signals in an ambisonic representation which retains only the ambisonic components associated with spherical harmonics that are symmetrical in relation to at least two of the aforementioned planes, and process a matrix thus obtained to identify a sound source surrounding the sphere portion and interpret a sound signal from the source.
    Type: Application
    Filed: May 20, 2020
    Publication date: August 11, 2022
    Inventors: Pierre Lecomte, Rozenn Nicol, Laurent Simon, Manuel Melon, Katell Peron, Cyril Plapous, Kais Hassan
  • Patent number: 11317234
    Abstract: A method for spatialized sound reproduction using an array of loudspeakers, to generate a chosen sound field selectively audible in a first predetermined sub-area of an area covered by the loudspeakers, the area further including a second sub-area in which the chosen sound field is inaudible. The loudspeakers are supplied with respective control signals so that each one continuously emits an audio signal. The method includes, iteratively and continuously: estimating a sound pressure in the second sub-area as a function of the respective control signals of the loudspeakers, and of a respective initial weight of the control signals; calculating an error between the estimated sound pressure and a target sound pressure in the second sub-area; and, calculating and applying respective weights to the control signals, based on the error. The sound pressure in the second sub-area is calculated again based on the respective weighted control signals of the loudspeakers.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: April 26, 2022
    Assignee: ORANGE
    Inventors: Georges Roussel, Rozenn Nicol
  • Patent number: 11218832
    Abstract: Systems and methods are disclosed for modelling of individual acoustic transfer functions relative to the audition of an individual in three-dimensional space. A method is provided for modelling sets of acoustic transfer functions specific to an individual according to a multiplicity of directions in space, where a set of acoustic transfer functions specific to the individual in a given direction is determined depending on the result of a statistical analysis of a plurality of distinct stimuli emitted in the direction of the individual. A stimulus can be dependent on at least one set of predetermined acoustic transfer functions that are associated with the given direction, and on responses received from the individual to each emitted stimulus.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: January 4, 2022
    Assignee: ORANGE
    Inventors: Rozenn Nicol, Julian Moreira
  • Publication number: 20210360363
    Abstract: A computer-assisted method for spatialized sound reproduction based on an array of loudspeakers, for the purpose of producing a selected sound field at a position of a listener. The method includes iteratively and continuously: obtaining a current position of a listener; determining respective acoustic transfer functions of the loudspeakers at a virtual microphone of which the position is defined dynamically as a function of the current position of the listener, estimating a sound pressure at the virtual microphone; calculating an error between the estimated sound pressure and a target sound pressure; calculating and applying respective weights to the control signals of the loudspeakers as a function of the error and of a weight forgetting factor, the forgetting factor being calculated as a function of a movement of the listener, and calculating the sound pressure at the current position of the listener.
    Type: Application
    Filed: August 22, 2019
    Publication date: November 18, 2021
    Inventors: Georges Roussel, Rozenn Nicol
  • Publication number: 20210239576
    Abstract: Methods are described of monitoring or supervising objects, particularly non-communicating objects. A detector for detecting complex states of objects is described, the detector comprising an analyzer configured to determine an object-related complex state depending on recognition of a least one sound emitted by the object. The recognized sound allows the detector to determine the complex state of an object. This complex state of the object may include an abnormal operating state of the object or a state of the object that is not related to its operation. For example, the complex state of the object may include its position on a surface, in a volume, or the identity of the person having handled the object.
    Type: Application
    Filed: April 25, 2019
    Publication date: August 5, 2021
    Inventors: Julien Riera, Nicolas Pellen, Rozenn Nicol, Katell Peron
  • Publication number: 20210185468
    Abstract: A method for spatialized sound reproduction using an array of loudspeakers, to generate a chosen sound field selectively audible in a first predetermined sub-area of an area covered by the loudspeakers, the area further including a second sub-area in which the chosen sound field is inaudible. The loudspeakers are supplied with respective control signals so that each one continuously emits an audio signal. The method includes, iteratively and continuously: estimating a sound pressure in the second sub-area as a function of the respective control signals of the loudspeakers, and of a respective initial weight of the control signals; calculating an error between the estimated sound pressure and a target sound pressure in the second sub-area; and, calculating and applying respective weights to the control signals, based on the error. The sound pressure in the second sub-area is calculated again based on the respective weighted control signals of the loudspeakers.
    Type: Application
    Filed: June 26, 2019
    Publication date: June 17, 2021
    Inventors: Georges Roussel, Rozenn Nicol
  • Patent number: 10978092
    Abstract: The present invention relates to the management of devices (AP1, AP2, AP3) connected to an equipment item (EQ) in an environment (ENV). The equipment item receives and interprets signals from the environment (S1, S2, S3) and, based on an interpretation of the signals, transmits adjustment instructions (C1, C2, C3) to the devices. In particular, there is provided a sound sensor (ANT) connected to the equipment item (EQ), and one or more mechanical members (OM1, OM2) which when actuated for the purpose of adjusting at least one of the devices, causes the emission of a characteristic sound (S1, S2). The equipment item, upon receiving these sound signals from the environment, compares each sound signal to acoustic signatures predefined in a correlation table (TAB) which lists adjustment instructions (C1, C2, . . . ) according to these acoustic signatures (S1, S2; S1, S3, S4; . . .
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: April 13, 2021
    Assignee: Orange
    Inventors: François-Gaël Ottogalli, Julien Riera, Franck Roudet, Rozenn Nicol
  • Publication number: 20200005809
    Abstract: The present invention relates to the management of devices (AP1, AP2, AP3) connected to an equipment item (EQ) in an environment (ENV). The equipment item receives and interprets signals from the environment (S1, S2, S3) and, based on an interpretation of the signals, transmits adjustment instructions (C1, C2, C3) to the devices. In particular, there is provided a sound sensor (ANT) connected to the equipment item (EQ), and one or more mechanical members (OM1, OM2) which when actuated for the purpose of adjusting at least one of the devices, causes the emission of a characteristic sound (S1, S2). The equipment item, upon receiving these sound signals from the environment, compares each sound signal to acoustic signatures predefined in a correlation table (TAB) which lists adjustment instructions (C1, C2, . . . ) according to these acoustic signatures (S1, S2; S1, S3, S4; . . .
    Type: Application
    Filed: July 1, 2019
    Publication date: January 2, 2020
    Inventors: François-Gaël OTTOGALLI, Julien RIERA, Franck ROUDET, Rozenn NICOL
  • Publication number: 20190149939
    Abstract: Systems and methods are disclosed for modelling of individual acoustic transfer functions relative to the audition of an individual in three-dimensional space. A method is provided for modelling sets of acoustic transfer functions specific to an individual according to a multiplicity of directions in space, where a set of acoustic transfer functions specific to the individual in a given direction is determined depending on the result of a statistical analysis of a plurality of distinct stimuli emitted in the direction of the individual. A stimulus can be dependent on at least one set of predetermined acoustic transfer functions that are associated with the given direction, and on responses received from the individual to each emitted stimulus.
    Type: Application
    Filed: November 13, 2018
    Publication date: May 16, 2019
    Inventors: Rozenn Nicol, Julian Moreira
  • Patent number: 9838790
    Abstract: A data-processing method for determining at least one spatial coordinate of a sound source emitting a sound signal, in a three-dimensional space, includes the following steps: obtaining at least one first signal and one second signal from the sound signal, collected according to separate directivities by a first sensor and a second sensor; deducing from the first and second signals an expression of at least one first spatial coordinate of the sound source, the expression comprising an uncertainty; determining additional information relating to the first spatial coordinate of the sound source, from a comparison between the respective features of the signals collected by the first and second sensors; and determining the first spatial coordinate of the sound source on the basis of the expression and the additional information.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: December 5, 2017
    Assignee: Orange
    Inventors: Julian Palacino, Rozenn Nicol
  • Patent number: 9584947
    Abstract: A method of calibrating a sound restitution assembly for a multichannel sound signal, which includes a plurality of loudspeakers.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: February 28, 2017
    Assignee: ORANGE
    Inventors: Romain Deprez, Rozenn Nicol
  • Publication number: 20160277836
    Abstract: A data-processing method for determining at least one spatial coordinate of a sound source emitting a sound signal, in a three-dimensional space, said method including the following steps: obtaining at least one first signal and one second signal from the sound signal, collected according to separate directivities by a first sensor and a second sensor; deducing from the first and second signals an expression of at least one first spatial coordinate of the sound source, the expression comprising an uncertainty regarding said spatial coordinate; determining additional information relating to the first spatial coordinate of the sound source, from a comparison between the respective features of the signals collected by the first and second sensors; and determining the first spatial coordinate of the sound source on the basis of the expression and the additional information.
    Type: Application
    Filed: November 15, 2013
    Publication date: September 22, 2016
    Inventors: Julian Palacino, Rozenn Nicol
  • Patent number: 9263050
    Abstract: A method is provided for allocating bits for quantifying spatial information parameters by frequency sub-band for parametric encoding/decoding of a multichannel audio stream representative of a soundstage consisting of a plurality of sound sources. The method includes a step of quantifying or inversely quantifying, by frequency sub-band, spatial information parameters for the sound sources of the soundscape. The method further includes: assessing a spatial resolution of the current sub-band on the basis of the spectral properties of the sub-band; and determining a number of bits to be allocated to the current sub-band, the number of bits to be allocated being inversely proportional to the estimated spatial resolution. Also provided is a device for allocating quantification bits implementing the above-described method.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: February 16, 2016
    Assignee: ORANGE
    Inventors: Adrien Daniel, Rozenn Nicol
  • Publication number: 20150223004
    Abstract: A method of calibrating a sound restitution assembly for a multichannel sound signal, which includes a plurality of loudspeakers.
    Type: Application
    Filed: September 5, 2013
    Publication date: August 6, 2015
    Applicant: ORANGE
    Inventors: Romain Deprez, Rozenn Nicol
  • Patent number: 9058803
    Abstract: A method for compressing an audio stream, including a plurality of signals, describing a sound scene produced by a plurality of sources in a space, by: identifying the sources from an audio stream; determining a frequency band, energy level and spatial position in the space for each of the identified sources; determining, for each identified source, a spatial resolution corresponding to the smallest difference in position of said source in the space which a listener is capable of perceiving, on the basis of: the frequency band, the energy level, and the spatial position of said source; and, on the frequency band, energy level, and spatial position of at least one subset of the other identified sources; generating a compressed stream comprising the information required to restore each identified source with at least the same corresponding spatial resolution.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: June 16, 2015
    Assignee: Orange
    Inventors: Adrien Daniel, Rozenn Nicol
  • Patent number: 8976972
    Abstract: Processing of sound data encoded in a sub-band domain, for dual-channel playback of binaural or Transaural® type is provided, in which a matrix filtering is applied so as to pass from a sound representation with N channels with N>0, to a dual-channel representation. This sound representation with N channels comprises considering N virtual loudspeakers surrounding the head of a listener, and, for each virtual loudspeaker of at least some of the loudspeakers: a first transfer function specific to an ipsilateral path from the loudspeaker to a first ear of the listener, facing the loudspeaker, and a second transfer function specific to a contralateral path from said loudspeaker to the second ear of the listener, masked from the loudspeaker by the listener's head. The matrix filtering comprises a multiplicative coefficient defined by the spectrum, in the sub-band domain, of the second transfer function deconvolved with the first transfer function.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: March 10, 2015
    Assignee: Orange
    Inventors: Marc Emerit, Rozenn Nicol, Grégory Pallone
  • Publication number: 20140219459
    Abstract: A method is provided for allocating bits for quantifying spatial information parameters by frequency sub-band for parametric encoding/decoding of a multichannel audio stream representative of a soundstage consisting of a plurality of sound sources. The method includes a step of quantifying or inversely quantifying, by frequency sub-band, spatial information parameters for the sound sources of the soundscape. The method further includes: assessing a spatial resolution of the current sub-band on the basis of the spectral properties of the sub-band; and determining a number of bits to be allocated to the current sub-band, the number of bits to be allocated being inversely proportional to the estimated spatial resolution. Also provided is a device for allocating quantification bits implementing the above-described method.
    Type: Application
    Filed: March 28, 2012
    Publication date: August 7, 2014
    Applicant: ORANGE
    Inventors: Adrien Daniel, Rozenn Nicol
  • Patent number: 8489371
    Abstract: The invention relates to a method for determining transfer functions of the HRTF type for an individual, that includes: measuring, for a first number of directions, the transfer functions of the HRTF type specific to the individual; matching the directivity functions associated with the measured functions of the HRTF type, with reference directivity functions associated with reference transfer functions of the HRTF type, the reference functions of the HRTF type being determined for a second number of directions higher that the first number of directions and reconstructing the measured directivity functions from the reference directivity functions.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: July 16, 2013
    Assignee: France Telecom
    Inventors: Pierre Guillon, Rozenn Nicol
  • Publication number: 20120314878
    Abstract: A method for compressing an audio stream, including a plurality of signals, describing a sound scene produced by a plurality of sources in a space, by: identifying the sources from an audio stream; determining a frequency band, energy level and spatial position in the space for each of the identified sources; determining, for each identified source, a spatial resolution corresponding to the smallest difference in position of said source in the space which a listener is capable of perceiving, on the basis of: the frequency band, the energy level, and the spatial position of said source; and, on the frequency band, energy level, and spatial position of at least one subset of the other identified sources; generating a compressed stream comprising the information required to restore each identified source with at least the same corresponding spatial resolution.
    Type: Application
    Filed: February 10, 2011
    Publication date: December 13, 2012
    Applicant: France Telecom
    Inventors: Adrien Daniel, Rozenn Nicol
  • Publication number: 20120201389
    Abstract: Processing of sound data encoded in a sub-band domain, for dual-channel playback of binaural or transaural® type is provided, in which a matrix filtering is applied so as to pass from a sound representation with N channels with N>0, to a dual-channel representation. This sound representation with N channels comprises considering N virtual loudspeakers surrounding the head of a listener, and, for each virtual loudspeaker of at least some of the loudspeakers: a first transfer function specific to an ipsilateral path from the loudspeaker to a first ear of the listener, facing the loudspeaker, and a second transfer function specific to a contralateral path from said loudspeaker to the second ear of the listener, masked from the loudspeaker by the listener's head. The matrix filtering comprises a multiplicative coefficient defined by the spectrum, in the sub-band domain, of the second transfer function deconvolved with the first transfer function.
    Type: Application
    Filed: October 8, 2010
    Publication date: August 9, 2012
    Applicant: France Telecom
    Inventors: Marc Emerit, Rozenn Nicol, Grégory Pallone