Patents by Inventor Charles Fox

Charles Fox 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).

  • Patent number: 12223977
    Abstract: Disclosed is an audio signal processing method implemented by an audio system including at least an internal sensor, an external sensor and a speaker unit. The audio signal processing method includes: producing internal and external audio signals by measuring simultaneously acoustic signals reaching the internal sensor and acoustic signals reaching the external sensor, respectively; converting the internal audio signal to frequency domain, thereby producing an internal audio spectrum; converting the external audio signal to frequency domain, thereby producing an external audio spectrum; estimating, based on the internal audio spectrum, an echo audio spectrum of an echo audio signal caused by the speaker unit in the external audio signal, wherein the echo audio spectrum is estimated for frequencies above a minimum frequency, wherein the minimum frequency?600 hertz; and correcting the external audio spectrum for frequencies above the minimum frequency, based on the echo audio spectrum.
    Type: Grant
    Filed: August 8, 2022
    Date of Patent: February 11, 2025
    Assignee: Analog Devices International Unlimited Company
    Inventors: Charles Fox, Jean-Marc Luneau
  • Patent number: 11955133
    Abstract: Disclosed is an audio signal processing method implemented by an audio system with internal and external sensors. The internal sensor measures acoustic signals propogating internally to a user's head. The external sensor measures acoustic signals propagating externally to the user's head. The method includes: producing first and second audio signals by measuring simultaneously acoustic signals reaching the internal and external sensors, respectively; filtering the second audio signal by a noise matching filter matching a second noise signal affecting the second audio signal with a first noise signal affecting the first audio signal, wherein the first noise signal and the second noise signal correspond to a same noise acoustic signal originating outside the user's head and measured by respectively the internal and external sensors, thereby producing a filtered second audio signal including a matched second noise signal; and mixing the filtered second audio signal and the first audio signal.
    Type: Grant
    Filed: June 15, 2022
    Date of Patent: April 9, 2024
    Assignee: Analog Devices International Unlimited Company
    Inventors: Stijn Robben, Charles Fox
  • Publication number: 20240046945
    Abstract: Disclosed is an audio signal processing method implemented by an audio system including at least an internal sensor, an external sensor and a speaker unit. The audio signal processing method includes: producing internal and external audio signals by measuring simultaneously acoustic signals reaching the internal sensor and acoustic signals reaching the external sensor, respectively; converting the internal audio signal to frequency domain, thereby producing an internal audio spectrum; converting the external audio signal to frequency domain, thereby producing an external audio spectrum; estimating, based on the internal audio spectrum, an echo audio spectrum of an echo audio signal caused by the speaker unit in the external audio signal, wherein the echo audio spectrum is estimated for frequencies above a minimum frequency, wherein the minimum frequency ?600 hertz; and correcting the external audio spectrum for frequencies above the minimum frequency, based on the echo audio spectrum.
    Type: Application
    Filed: August 8, 2022
    Publication date: February 8, 2024
    Inventors: Charles FOX, Jean-Marc LUNEAU
  • Publication number: 20230410827
    Abstract: Disclosed is an audio signal processing method implemented by an audio system with internal and external sensors. The internal sensor measures acoustic signals propogating internally to a user's head. The external sensor measures acoustic signals propagating externally to the user's head. The method includes: producing first and second audio signals by measuring simultaneously acoustic signals reaching the internal and external sensors, respectively; filtering the second audio signal by a noise matching filter matching a second noise signal affecting the second audio signal with a first noise signal affecting the first audio signal, wherein the first noise signal and the second noise signal correspond to a same noise acoustic signal originating outside the user's head and measured by respectively the internal and external sensors, thereby producing a filtered second audio signal including a matched second noise signal; and mixing the filtered second audio signal and the first audio signal.
    Type: Application
    Filed: June 15, 2022
    Publication date: December 21, 2023
    Inventors: Stijn ROBBEN, Charles FOX
  • Patent number: 9338547
    Abstract: This method comprises steps of: a) partitioning (10, 16) the spectrum of the noisy signal into a HF part and a LF part; b) operating denoising processes in a differentiated manner for each of the two parts of the spectrum with, for the HF part, a denoising by prediction of the useful signal from one sensor to the other between sensors of a first sub-array (R1), by means of a first adaptive algorithm estimator (14), and, for the LF part, a denoising by prediction of the noise from one sensor to the other between sensors of a second sub-array (R2), by means of a second adaptive algorithm estimator (18); c) reconstructing the spectrum by combining together (22) the signals delivered after denoising of the two parts of the spectrum, respectively; and d) selectively reducing the noise (24) by an Optimized Modified Log-Spectral Amplitude gain, OM-LSA, process.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: May 10, 2016
    Assignee: PARROT
    Inventors: Charles Fox, Guillaume Vitte, Maurice Charbit, Jacques Prado
  • Publication number: 20130343558
    Abstract: This method comprises steps of: a) partitioning (10, 16) the spectrum of the noisy signal into a HF part and a LF part; b) operating denoising processes in a differentiated manner for each of the two parts of the spectrum with, for the HF part, a denoising by prediction of the useful signal from one sensor to the other between sensors of a first sub-array (R1), by means of a first adaptive algorithm estimator (14), and, for the LF part, a denoising by prediction of the noise from one sensor to the other between sensors of a second sub-array (R2), by means of a second adaptive algorithm estimator (18); c) reconstructing the spectrum by combining together (22) the signals delivered after denoising of the two parts of the spectrum, respectively; and d) selectively reducing the noise (24) by an Optimized Modified Log-Spectral Amplitude gain, OM-LSA, process.
    Type: Application
    Filed: June 11, 2013
    Publication date: December 26, 2013
    Applicant: PARROT
    Inventors: Charles Fox, Guillaume Vitte, Maurice Charbit, Jacques Prado
  • Patent number: 8504117
    Abstract: This method comprises the following steps in the frequency domain: a) estimating a probability that speech is present; b) estimating a spectral covariance matrix of the noise picked up by the sensors, this estimation being modulated by the probability that speech is present; c) estimating the transfer functions of the acoustic channels between the source of speech and at least some of the sensors relative to a reference constituted by the signal picked up by one of the sensors, this estimation being modulated by the probability that speech is present; d) calculating an optimal linear projector giving a single combined signal from the signals picked up by at least some of the sensors, from the spectral covariance matrix, and from the estimated transfer functions; and e) on the basis of the probability that speech is present and of the combined signal output from the projector, selectively reducing the noise by applying variable gain.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: August 6, 2013
    Assignee: Parrot
    Inventor: Charles Fox
  • Publication number: 20120322511
    Abstract: This method comprises the following steps in the frequency domain: a) estimating a probability that speech is present; b) estimating a spectral covariance matrix of the noise picked up by the sensors, this estimation being modulated by the probability that speech is present; c) estimating the transfer functions of the acoustic channels between the source of speech and at least some of the sensors relative to a reference constituted by the signal picked up by one of the sensors, this estimation being modulated by the probability that speech is present; d) calculating an optimal linear projector giving a single combined signal from the signals picked up by at least some of the sensors, from the spectral covariance matrix, and from the estimated transfer functions; and e) on the basis of the probability that speech is present and of the combined signal output from the projector, selectively reducing the noise by applying variable gain.
    Type: Application
    Filed: June 5, 2012
    Publication date: December 20, 2012
    Applicant: PARROT
    Inventor: Charles Fox
  • Patent number: 8268335
    Abstract: A basic facial and body treatment cosmetic formulation is a combination of a cationic emulsifying agent, an oil soluble liquid polymer and a naturally occurring lactate buffer system. The basic formulation is a starter system that can be specialized to skin moisturizers, skin lighteners, skin pigmenting agents, sunscreens, antioxidants, line reducing products, wrinkle reducing products, anti-cellulite products, pharmaceuticals and the like.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: September 18, 2012
    Assignee: Greyson International, Inc.
    Inventor: Charles Fox
  • Publication number: 20100080764
    Abstract: A basic facial and body treatment cosmetic formulation is a combination of a cationic emulsifying agent, an oil soluble liquid polymer and a naturally occurring lactate buffer system. The basic formulation is a starter system that can be specialized to skin moisturizers, skin lighteners, skin pigmenting agents, sunscreens, antioxidants, line reducing products, wrinkle reducing products, anti-cellulite products, pharmaceuticals and the like.
    Type: Application
    Filed: September 28, 2009
    Publication date: April 1, 2010
    Inventor: Charles Fox
  • Publication number: 20090104237
    Abstract: Disclosed are methods and compositions for increasing tissue oxygen levels by administration of superoxygenated compositions of tissue surfaces. The methods are applicable to treatment of a wide variety of conditions including burns, bedsores, ulcers, necrosis and anaerobic infections.
    Type: Application
    Filed: January 24, 2008
    Publication date: April 23, 2009
    Applicant: Hydrogen Technologies, Inc.
    Inventors: TERRENCE S. McGRATH, Charles Fox
  • Publication number: 20080305057
    Abstract: A basic facial and body treatment cosmetic formulation is a combination of a cationic emulsifying agent, an oil soluble liquid polymer and a naturally occurring lactate buffer system. The basic formulation is a starter system that can be specialized to skin moisturizers, skin lighteners, skin pigmenting agents, sunscreens, antioxidants, line reducing products, wrinkle reducing products, anti-cellulite products, pharmaceuticals and the like.
    Type: Application
    Filed: June 7, 2007
    Publication date: December 11, 2008
    Inventor: Charles Fox
  • Publication number: 20080110318
    Abstract: The present invention is a hollow body stringed musical instrument that utilizes a low mass, soundboard having a 12 to 25 foot radius dome configuration. The soundboard is made of a three ply torsion box design utilizing a honeycomb stiffening layer as the central core. Linear adjustable tuning braces are incorporated in the hollow body. The side and back of the instrument are also of a three ply construction having a polymer ir inorganic foam as the central layer. (Preferably this will be a closed cell foam.) The back also has a domed configuration with a 12 to 15 foot radius. All structural braces are eliminated from the interior of the instrument's body.
    Type: Application
    Filed: January 9, 2008
    Publication date: May 15, 2008
    Inventor: Charles Fox
  • Publication number: 20070187476
    Abstract: A system method for determining whether a location on a patient's body is available for an attachment is provided. A patient identifier is received and the patient's electronic medical record is accessed. An interactive graphical representation of at least a portion of a human body is displayed. A selection of a location of the patient's body from the interactive graphical human body representation is received and it is determined whether the location is available for an attachment.
    Type: Application
    Filed: February 10, 2006
    Publication date: August 16, 2007
    Applicant: Cerner Innovation, Inc.
    Inventors: Deborah Durrell, Charles Fox, Stephanie Rogers, Kris Kline
  • Publication number: 20070187478
    Abstract: A method and system in a computerized health care environment for determining whether an attachment may be safely attached to a body site of a patient is provided. A patient identifier is received and the patient's electronic medical record is accessed. An attachment identifier is received and data for the attachment is accessed. A body site identifier identifying the area of the body of the patient to which the attachment is to be placed is received and data for the body site is accessed. Some or all of the data are used to determine whether the attachment may be safely attached to the body site of the patient.
    Type: Application
    Filed: February 10, 2006
    Publication date: August 16, 2007
    Applicant: Cerner Innovation, Inc.
    Inventors: Deborah Durrell, Charles Fox, Stephanie Rogers, Kris Kline
  • Publication number: 20070187477
    Abstract: A method and system in a computerized health care environment for determining whether a consumable may be safely administered to a body site of a patient is provided. A patient identifier to identify a patient and a consumable identifier identifying a consumable are received. A body site identifier identifying a location on the body of the patient to which the attachment is to be placed is received. The patient identifier, consumable identifier and body site identifier are utilized to determined whether the consumable may be safely administered to the body site of the patient.
    Type: Application
    Filed: February 10, 2006
    Publication date: August 16, 2007
    Applicant: Cerner Innovation, Inc.
    Inventors: Deborah Durrell, Charles Fox, Stephanie Rogers, Kris Kline
  • Publication number: 20060149599
    Abstract: A system and method are provided for using a caregiver portable computing device for documenting performance of patient-related tasks during an emergency care process. The system includes an emergency interface for regulating communication between a user and the portable caregiver computing device during performance of emergency care processes and a recognition mechanism for recognizing performance of each patient-related task during the emergency care process. The system additionally includes a queue for storing each recognized performed patient-related task and an approval interface for allowing validation of each performed task after each performed task is stored in the queue.
    Type: Application
    Filed: January 3, 2005
    Publication date: July 6, 2006
    Applicant: Cerner Innovation, Inc.
    Inventors: Charles Fox, Kristopher Kline, Deborah Durrell, Mandra Isernhagen
  • Patent number: 6989152
    Abstract: A compound for reducing the incidence of pseudofolliculitis combines a mild skin astringent, an oil based epidermal softener, and a hair stiffener. One embodiment of the compound combines refined powdered oatmeal and emollient of the compound combines refined powdered oatmeal and emollient oil, such as mink oil and liquid vitamin A in a petroleum jelly base. The mixture is applied by being massaged into the skin prior to lathering and then again immediately after the rinsing of the face after shaving. Continual usage significantly reduces the eruption of pseudofolliculitis. The compound would also include Borage Oil and Evening Primrose Oil rich in Gamma Linolenic Acid (GLA).
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: January 24, 2006
    Inventors: John Campbell, Charles Fox
  • Patent number: 6984391
    Abstract: New cosmetic compositions are disclosed that are effective both as moisturizers and skin sloughing agents. The compositions contain neutralized weak organic acids that when applied over time to the skin in appropriate formulations will gradually increase in acidity to pH 5.5 or less, for example about pH 4.5, without causing skin irritation while exhibiting increasing activity in skin renewal effects.
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: January 10, 2006
    Inventors: Charles Fox, Terrence S. McGrath
  • Publication number: 20050281853
    Abstract: A unique delivery method for providing optimal pH in topical skin formulations is described. Cosmetically acceptable skin formulations prepared with selected weak acids neutralized with ammonia will gradually increase in acidity after topical application. The initial neutral pH changes to a pH compatible with normal skin processes important for skin lipid barrier renewal and sloughing of cells from the stratum corneum.
    Type: Application
    Filed: August 26, 2005
    Publication date: December 22, 2005
    Inventors: Charles Fox, Terrence McGrath