Patents by Inventor Gregory C. Burnett

Gregory C. Burnett 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: 11122357
    Abstract: A dual omnidirectional microphone array noise suppression is described. Compared to conventional arrays and algorithms, which seek to reduce noise by nulling out noise sources, the array of an embodiment is used to form two distinct virtual directional microphones which are configured to have very similar noise responses and very dissimilar speech responses. The only null formed is one used to remove the speech of the user from V2. The two virtual microphones may be paired with an adaptive filter algorithm and VAD algorithm to significantly reduce the noise without distorting the speech, significantly improving the SNR of the desired speech over conventional noise suppression systems.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: September 14, 2021
    Assignee: Jawbone Innovations, LLC
    Inventor: Gregory C. Burnett
  • Patent number: 10779080
    Abstract: A dual omnidirectional microphone array noise suppression is described. Compared to conventional arrays and algorithms, which seek to reduce noise by nulling out noise sources, the array of an embodiment is used to form two distinct virtual directional microphones which are configured to have very similar noise responses and very dissimilar speech responses. The only null formed is one used to remove the speech of the user from V2. The two virtual microphones may be paired with an adaptive filter algorithm and VAD algorithm to significantly reduce the noise without distorting the speech, significantly improving the SNR of the desired speech over conventional noise suppression systems.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: September 15, 2020
    Assignee: JAWB ACQUISITION LLC
    Inventor: Gregory C. Burnett
  • Patent number: 10225649
    Abstract: Techniques for noise suppression systems coupled to one or more microphone arrays are described, including a housing, a first microphone, a second microphone, and a third microphone, where the third microphone functions as a common rear vent for the first and the second microphones.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: March 5, 2019
    Inventor: Gregory C. Burnett
  • Patent number: 10218853
    Abstract: A wireless conference call telephone system uses body-worn wired or wireless audio endpoints comprising microphones and, optionally, speakers. These audio-endpoints, which include headsets, pendants, and clip-on microphones to name a few, are used to capture the user's voice and the resulting data may be used to remove echo and environmental acoustic noise. Each audio-endpoint transmits its audio to the telephony gateway, where noise and echo suppression can take place if not already performed on the audio-endpoint, and where each audio-endpoint's output can be labeled, integrated with the output of other audio-endpoints, and transmitted over one or more telephony channels of a telephone network. The noise and echo suppression can also be done on the audio-endpoint. The labeling of each user's output can be used by the outside caller's phone to spatially locate each user in space, increasing intelligibility.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: February 26, 2019
    Inventors: Gregory C. Burnett, Michael Goertz, Nicolas Jean Petit, Zhinian Jing, Steven Foster Forestieri, Thomas Alan Donaldson
  • Patent number: 10212527
    Abstract: Embodiments include a system comprising a pipe that includes a first end and a second end. The pipe includes a plurality of sections coupled together. The system includes a loudspeaker that is a mouth simulator loudspeaker. The system includes an adapter that connects the loudspeaker to the first end. The system includes a receptacle positioned in the pipe a first distance from the first end and a second distance from the second end. The receptacle secures a plurality of microphones a third distance inside an inside surface of the pipe.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: February 19, 2019
    Inventor: Gregory C. Burnett
  • Publication number: 20170272875
    Abstract: Embodiments include a method comprising forming a pipe including a first end and a second end by forming couplings between a plurality of sections of pipe. A loudspeaker is connected to the first end. The loudspeaker is a mouth simulator loudspeaker. A plurality of microphones are positioned a third distance inside an inside surface of the pipe using a receptacle positioned in the pipe a first distance from the first end and a second distance from the second end. An acoustic output is generated at the loudspeaker. One or more calibration filters are generated using outputs of the plurality of microphones produced in response to the acoustic output.
    Type: Application
    Filed: March 15, 2016
    Publication date: September 21, 2017
    Applicant: AliphCom
    Inventor: Gregory C. Burnett
  • Publication number: 20160155434
    Abstract: Acoustic noise suppression is provided in multiple-microphone systems using Voice Activity Detectors (VAD). A host system receives acoustic signals via multiple microphones. The system also receives information on the vibration of human tissue associated with human voicing activity via the VAD. In response, the system generates a transfer function representative of the received acoustic signals upon determining that voicing information is absent from the received acoustic signals during at least one specified period of time. The system removes noise from the received acoustic signals using the transfer function, thereby producing a denoised acoustic data stream.
    Type: Application
    Filed: November 24, 2015
    Publication date: June 2, 2016
    Applicant: AliphCom
    Inventors: Gregory C. Burnett, Eric F. Breitfeller
  • Patent number: 9344823
    Abstract: Embodiments include a device comprising a pipe having at least one section that spans between a first end and a second end of the pipe. The pipe has a cylindrical cross-section. The device comprises a receptacle positioned in the pipe a first distance from the first end and a second distance from the second end. The receptacle receives an electronic device having microphones that are to be calibrated and secures the microphones a third distance inside an inside surface of the pipe. The device comprises an adapter connected to the first end. The adapter connects a loudspeaker to the pipe. The pipe controls an acoustic energy experienced by the plurality of microphones so that each microphone of the plurality of microphones receives equivalent acoustic energy.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: May 17, 2016
    Assignee: AliphCom
    Inventor: Gregory C. Burnett
  • Publication number: 20160080856
    Abstract: A dual omnidirectional microphone array noise suppression is described. Compared to conventional arrays and algorithms, which seek to reduce noise by nulling out noise sources, the array of an embodiment is used to form two distinct virtual directional microphones which are configured to have very similar noise responses and very dissimilar speech responses. The only null formed is one used to remove the speech of the user from V2. The two virtual microphones may be paired with an adaptive filter algorithm and VAD algorithm to significantly reduce the noise without distorting the speech, significantly improving the SNR of the desired speech over conventional noise suppression systems.
    Type: Application
    Filed: September 15, 2014
    Publication date: March 17, 2016
    Applicant: AliphCom
    Inventor: Gregory C. Burnett
  • Patent number: 9288598
    Abstract: Embodiments include a method comprising forming a pipe including a first end and a second end by forming couplings between a plurality of sections of pipe. A loudspeaker is connected to the first end. The loudspeaker is a mouth simulator loudspeaker. A plurality of microphones are positioned a third distance inside an inside surface of the pipe using a receptacle positioned in the pipe a first distance from the first end and a second distance from the second end. An acoustic output is generated at the loudspeaker. One or more calibration filters are generated using outputs of the plurality of microphones produced in response to the acoustic output.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: March 15, 2016
    Assignee: Aliph, Inc.
    Inventor: Gregory C. Burnett
  • Patent number: 9263062
    Abstract: A voice activity detector (VAD) combines the use of an acoustic VAD and a vibration sensor VAD as appropriate to the conditions a host device is operated. The VAD includes a first detector receiving a first signal and a second detector receiving a second signal. The VAD includes a first VAD component coupled to the first and second detectors. The first VAD component determines that the first signal corresponds to voiced speech when energy resulting from at least one operation on the first signal exceeds a first threshold. The VAD includes a second VAD component coupled to the second detector. The second VAD component determines that the second signal corresponds to voiced speech when a ratio of a second parameter corresponding to the second signal and a first parameter corresponding to the first signal exceeds a second threshold.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: February 16, 2016
    Assignee: AplihCom
    Inventors: Zhinian Jing, Nicolas Jean Petit, Gregory C. Burnett
  • Patent number: 9196261
    Abstract: Acoustic noise suppression is provided in multiple-microphone systems using Voice Activity Detectors (VAD). A host system receives acoustic signals via multiple microphones. The system also receives information on the vibration of human tissue associated with human voicing activity via the VAD. In response, the system generates a transfer function representative of the received acoustic signals upon determining that voicing information is absent from the received acoustic signals during at least one specified period of time. The system removes noise from the received acoustic signals using the transfer function, thereby producing a denoised acoustic data stream.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: November 24, 2015
    Assignee: ALIPHCOM
    Inventors: Gregory C. Burnett, Eric F. Breitfeller
  • Publication number: 20150319527
    Abstract: Techniques associated with an acoustic vibration sensor are described, including a first detector that receives a first signal and a second detector that receives a second signal and a third signal, wherein the first signal comprises a skin surface microphone signal, a static equalization filter coupled to the first detector and configured to generate an equalized first signal, a voice activity detector coupled to the first detector, and a wind detector coupled to the second detector, the wind detector configured to correlate the second signal and the third signal and to derive from the correlation a plurality of wind metrics associated with a wind noise, the wind detector is further configured to determine a magnitude associated with the wind noise, to determine whether to suspend an activity of the system, and to determine a duration of time that the magnitude associated with the wind noise exceeds a threshold.
    Type: Application
    Filed: January 27, 2015
    Publication date: November 5, 2015
    Applicant: AliphCom
    Inventors: Nicolas Jean Petit, Gregory C. Burnett, Michael Goertz
  • Publication number: 20150288823
    Abstract: A wireless conference call telephone system uses body-worn wired or wireless audio endpoints comprising microphones and, optionally, speakers. These audio-endpoints, which include headsets, pendants, and clip-on microphones to name a few, are used to capture the user's voice and the resulting data may be used to remove echo and environmental acoustic noise. Each audio-endpoint transmits its audio to the telephony gateway, where noise and echo suppression can take place if not already performed on the audio-endpoint, and where each audio-endpoint's output can be labeled, integrated with the output of other audio-endpoints, and transmitted over one or more telephony channels of a telephone network. The noise and echo suppression can also be done on the audio-endpoint. The labeling of each user's output can be used by the outside caller's phone to spatially locate each user in space, increasing intelligibility.
    Type: Application
    Filed: March 12, 2015
    Publication date: October 8, 2015
    Applicant: AliphCom
    Inventors: Gregory C. Burnett, Michael Goertz, Nicolas Jean Petit, Zhinian Jing, Steven Foster Forestieri, Thomas Alan Donaldson
  • Patent number: 9099094
    Abstract: Microphone arrays (MAs) are described that position and vent microphones so that performance of a noise suppression system coupled to the microphone array is enhanced. The MA includes at least two physical microphones to receive acoustic signals. The physical microphones make use of a common rear vent (actual or virtual) that samples a common pressure source. The MA includes a physical directional microphone configuration and a virtual directional microphone configuration. By making the input to the rear vents of the microphones (actual or virtual) as similar as possible, the real-world filter to be modeled becomes much simpler to model using an adaptive filter.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: August 4, 2015
    Assignee: AliphCom
    Inventor: Gregory C. Burnett
  • Patent number: 9066186
    Abstract: A light-based skin contact detector is described, including a boot having an index of refraction less than or equal to another index of refraction associated with skin at a frequency of light, a light emitter and detector coupled to the boot and configured to measure an amount of light energy reflected by an interface of the boot, and a digital signal processor configured to detect a change in the amount of light energy reflected by the interface. Embodiments relate to methods for detecting skin contact by measuring an amount of energy reflected by an interface when a boot is not in contact with skin, measuring another amount of energy reflected by another interface when the boot is in contact with the skin, and detecting a change between the amount of energy and the another amount of energy using a digital signal processor.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: June 23, 2015
    Assignee: AliphCom
    Inventor: Gregory C. Burnett
  • Patent number: 9031246
    Abstract: Systems and methods are described for clamping a headset in a calibration system using a clamp system that includes a clamp, platform, and one or more spindles (e.g., cushion spindles) to minimize or eliminate issues associated with positioning of headsets. The clamp system comprises a mount having a receptacle. When a device is introduced to the mount the receptacle receives at least a portion of a device. The clamp system includes a clamp attached to the mount and having a first arm rotateably coupled to a second arm that controls the first arm between an open position and a closed position. A platform and at least one spindle are connected to the first arm. When the device is present in the receptacle and the first arm is in the closed position the spindle contacts the device and seats or secures the device in the receptacle.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: May 12, 2015
    Assignee: AliphCom
    Inventor: Gregory C. Burnett
  • Patent number: 8942383
    Abstract: Techniques associated with an acoustic vibration sensor are described, including a first detector that receives a first signal and a second detector that receives a second signal and a third signal, wherein the first signal comprises a skin surface microphone signal, a static equalization filter coupled to the first detector and configured to generate an equalized first signal, a voice activity detector coupled to the first detector, and a wind detector coupled to the second detector, the wind detector configured to correlate the second signal and the third signal and to derive from the correlation a plurality of wind metrics associated with a wind noise, the wind detector is further configured to determine a magnitude associated with the wind noise, to determine whether to suspend an activity of the system, and to determine a duration of time that the magnitude associated with the wind noise exceeds a threshold.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: January 27, 2015
    Assignee: AliphCom
    Inventors: Nicolas Jean Petit, Gregory C. Burnett, Michael Goertz
  • Publication number: 20140372113
    Abstract: Communication systems are described, including both portable handset and headset devices, which use a number of microphone configurations to receive acoustic signals of an environment. The microphone configurations include, for example, a two microphone array including two unidirectional microphones, and a two-microphone array including one unidirectional microphone and one omnidirectional microphone. The communication systems also include Voice Activity Detection (VAD) devices to provide information of human voicing activity. Components of the communications systems receive the acoustic signals and voice activity signals and, in response, automatically generate control signals from data of the voice activity signals. Components of the communication systems use the control signals to automatically select a denoising method appropriate to data of frequency subbands of the acoustic signals.
    Type: Application
    Filed: June 17, 2013
    Publication date: December 18, 2014
    Applicant: AliphCom
    Inventors: Gregory C. Burnett, Nicolas J. Petit, Andrew E. Einaudi, Alexander M. Asseily
  • Publication number: 20140328496
    Abstract: Systems and methods are described by which microphones are calibrated. Disclosed are techniques for generating a first output signal from a first input signal at a first microphone, generating a second output signal from a second input signal at a second microphone, forming a first filter as a function of the first output signal and the second output signal, the first filter being configured to substantially model the first microphone, and forming a second filter as a function of the first output signal and the second output signal, the second filter being configured to substantially model the second microphone. The second filter may be used to output a third output signal from the first output signal, and the first filter may be used to output a fourth output signal from the second output signal. The fourth output signal may be substantially similar to the third output signal.
    Type: Application
    Filed: May 5, 2014
    Publication date: November 6, 2014
    Applicant: AliphCom
    Inventor: Gregory C. Burnett