Patents by Inventor Peter Raffensperger
Peter Raffensperger 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).
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Patent number: 11841899Abstract: A device with microphones can generate microphone signals during an audio recording. The device can store, in an electronic audio data file, the microphone signals, and metadata that includes impulse responses of the microphones. Other aspects are described and claimed.Type: GrantFiled: June 11, 2020Date of Patent: December 12, 2023Assignee: Apple Inc.Inventors: Jonathan D. Sheaffer, Symeon Delikaris Manias, Gaetan R. Lorho, Peter A. Raffensperger, Eric A. Allamanche, Frank Baumgarte, Dipanjan Sen, Joshua D. Atkins, Juha O. Merimaa
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Patent number: 11012774Abstract: A method for producing a target directivity function that includes a set of spatially biased HRTFs. A set of left ear and right ear head related transfer functions (HRTFs) are selected. The left ear and right ear head HRTFs are multiplied with an on-camera emphasis function (OCE), to produce the spatially biased HRTFs. The OCE may be designed to shape the sound profile of the HRTFs to provide emphasis in a desired location or direction that is a function of the specific orientation of the device as it is being used to make a video recording. Other aspects are also described and claimed.Type: GrantFiled: September 18, 2019Date of Patent: May 18, 2021Assignee: APPLE INC.Inventors: Jonathan D. Sheaffer, Joshua D. Atkins, Peter A. Raffensperger, Symeon Delikaris Manias
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Publication number: 20200409995Abstract: A device with microphones can generate microphone signals during an audio recording. The device can store, in an electronic audio data file, the microphone signals, and metadata that includes impulse responses of the microphones. Other aspects are described and claimed.Type: ApplicationFiled: June 11, 2020Publication date: December 31, 2020Inventors: Jonathan D. Sheaffer, Symeon Delikaris Manias, Gaetan R. Lorho, Peter A. Raffensperger, Eric A. Allamanche, Frank Baumgarte, Dipanjan Sen, Joshua D. Atkins, Juha O. Merimaa
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Patent number: 10798511Abstract: Processing input audio channels for generating spatial audio can include receiving a plurality of microphone signals that capture a sound field. Each microphone signal can be transformed into a frequency domain signal. From each frequency domain signal, a direct component and a diffuse component can be extracted. The direct component can be processed with a parametric renderer. The diffuse component can be processed with a linear renderer. The components can be combined, resulting in a spatial audio output. The levels of the components can be adjusted to match a direct to diffuse ratio (DDR) of the output with the DDR of the captured sound field. Other aspects are also described and claimed.Type: GrantFiled: April 8, 2019Date of Patent: October 6, 2020Assignee: APPLE INC.Inventors: Jonathan D. Sheaffer, Juha O. Merimaa, Jason Wung, Martin E. Johnson, Peter A. Raffensperger, Joshua D. Atkins, Symeon Delikaris Manias, Mehrez Souden
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Patent number: 10665250Abstract: An audio appliance can include a microphone transducer configured to receive sound from an environment and to convert the received sound into an audio signal and a display. The audio appliance can include an audio analytics module configured to detect an audio-input impairment by analyzing the audio signal and output a detection signal identifying the audio-input impairment in real-time. The audio-input impairment can include, for example, a poor-intelligibility impairment, a microphone-occlusion impairment, a handling-noise impairment, a wind-noise impairment, or a distortion impairment. The audio appliance can also include an impairment module configured to identify and emit a user-perceptible alert corresponding to the identified audio-input impairment in real-time; and an interactive guidance module configured to present a suggested action to address the audio-input impairment in real-time. Related aspects also are described.Type: GrantFiled: September 28, 2018Date of Patent: May 26, 2020Assignee: Apple Inc.Inventors: Jonathan D. Sheaffer, Peter A. Raffensperger, Ashrith Deshpande
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Publication number: 20200137489Abstract: A method for producing a target directivity function that includes a set of spatially biased HRTFs. A set of left ear and right ear head related transfer functions (HRTFs) are selected. The left ear and right ear head HRTFs are multiplied with an on-camera emphasis function (OCE), to produce the spatially biased HRTFs. The OCE may be designed to shape the sound profile of the HRTFs to provide emphasis in a desired location or direction that is a function of the specific orientation of the device as it is being used to make a video recording. Other aspects are also described and claimed.Type: ApplicationFiled: September 18, 2019Publication date: April 30, 2020Inventors: Jonathan D. Sheaffer, Joshua D. Atkins, Peter A. Raffensperger, Symeon Delikaris Manias
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Publication number: 20200105291Abstract: An audio appliance can include a microphone transducer configured to receive sound from an environment and to convert the received sound into an audio signal and a display. The audio appliance can include an audio analytics module configured to detect an audio-input impairment by analyzing the audio signal and output a detection signal identifying the audio-input impairment in real-time. The audio-input impairment can include, for example, a poor-intelligibility impairment, a microphone-occlusion impairment, a handling-noise impairment, a wind-noise impairment, or a distortion impairment. The audio appliance can also include an impairment module configured to identify and emit a user-perceptible alert corresponding to the identified audio-input impairment in real-time; and an interactive guidance module configured to present a suggested action to address the audio-input impairment in real-time. Related aspects also are described.Type: ApplicationFiled: September 28, 2018Publication date: April 2, 2020Inventors: Jonathan D. Sheaffer, Peter A. Raffensperger, Ashrith Deshpande
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Patent number: 10334357Abstract: Impulse responses of a device are measured. A database of sound files is generated by convolving source signals with the impulse responses of the device. The sound files from the database are transformed into time-frequency domain. One or more sub-band directional features is estimated at each sub-band of the time-frequency domain. A deep neural network (DNN) is trained for each sub-band based on the estimated one or more sub-band directional features and a target directional feature.Type: GrantFiled: September 29, 2017Date of Patent: June 25, 2019Assignee: Apple Inc.Inventors: Joshua D. Atkins, Mehrez Souden, Symeon Delikaris-Manias, Peter Raffensperger
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Publication number: 20190104357Abstract: Impulse responses of a device are measured. A database of sound files is generated by convolving source signals with the impulse responses of the device. The sound files from the database are transformed into time-frequency domain. One or more sub-band directional features is estimated at each sub-band of the time-frequency domain. A deep neural network (DNN) is trained for each sub-band based on the estimated one or more sub-band directional features and a target directional feature.Type: ApplicationFiled: September 29, 2017Publication date: April 4, 2019Inventors: Joshua D. Atkins, Mehrez Souden, Symeon Delikaris-Manias, Peter Raffensperger
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Patent number: 10141005Abstract: Systems and techniques for removing non-stationary and/or colored noise can include one or more of the three following innovative aspects: (1) detection of an unwanted target signal, or component thereof, within an observed signal; (2) removal of the target (component) from the observed signal; and (3) filling of a gap in the observed signal generated by removal of the unwanted target (component). Removal regions, frequency bands, and/or regions of the observed signal used to train the gap filler can be adapted in correspondence with local characteristics of the observed signal and/or the target signal (component). Related aspects also are described. For example, disclosed noise detection and/or removal methods can include converting an incoming acoustic signal to a corresponding machine-readable form. And, a corrected signal in machine-readable form can be converted to a human-perceivable form, and/or to a modulated signal form conveyed over a communication connection.Type: GrantFiled: July 1, 2016Date of Patent: November 27, 2018Assignee: Apple Inc.Inventors: Harvey D. Thornburg, Hyung-Suk Kim, Peter A. Raffensperger
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Patent number: 9984701Abstract: Systems and techniques for removing non-stationary and/or colored noise can include one or more of the three following innovative aspects: (1) detection of an unwanted target signal, or component thereof, within an observed signal; (2) removal of the target (component) from the observed signal; and (3) filling of a gap in the observed signal generated by removal of the unwanted target (component). Removal regions, frequency bands, and/or regions of the observed signal used to train the gap filler can be adapted in correspondence with local characteristics of the observed signal and/or the target signal (component). Related aspects also are described. For example, disclosed noise detection and/or removal methods can include converting an incoming acoustic signal to a corresponding machine-readable form. And, a corrected signal in machine-readable form can be converted to a human-perceivable form, and/or to a modulated signal form conveyed over a communication connection.Type: GrantFiled: July 1, 2016Date of Patent: May 29, 2018Assignee: Apple Inc.Inventors: Harvey D. Thornburg, Hyung-Suk Kim, Peter A. Raffensperger
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Publication number: 20170358314Abstract: Systems and techniques for removing non-stationary and/or colored noise can include one or more of the three following innovative aspects: (1) detection of an unwanted target signal, or component thereof, within an observed signal; (2) removal of the target (component) from the observed signal; and (3) filling of a gap in the observed signal generated by removal of the unwanted target (component). Removal regions, frequency bands, and/or regions of the observed signal used to train the gap filler can be adapted in correspondence with local characteristics of the observed signal and/or the target signal (component). Related aspects also are described. For example, disclosed noise detection and/or removal methods can include converting an incoming acoustic signal to a corresponding machine-readable form. And, a corrected signal in machine-readable form can be converted to a human-perceivable form, and/or to a modulated signal form conveyed over a communication connection.Type: ApplicationFiled: July 1, 2016Publication date: December 14, 2017Inventors: Harvey D. Thornburg, Hyung-Suk Kim, Peter A. Raffensperger
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Publication number: 20170358316Abstract: Systems and techniques for removing non-stationary and/or colored noise can include one or more of the three following innovative aspects: (1) detection of an unwanted target signal, or component thereof, within an observed signal; (2) removal of the target (component) from the observed signal; and (3) filling of a gap in the observed signal generated by removal of the unwanted target (component). Removal regions, frequency bands, and/or regions of the observed signal used to train the gap filler can be adapted in correspondence with local characteristics of the observed signal and/or the target signal (component). Related aspects also are described. For example, disclosed noise detection and/or removal methods can include converting an incoming acoustic signal to a corresponding machine-readable form. And, a corrected signal in machine-readable form can be converted to a human-perceivable form, and/or to a modulated signal form conveyed over a communication connection.Type: ApplicationFiled: July 1, 2016Publication date: December 14, 2017Inventors: Harvey D. Thornburg, Hyung-Suk Kim, Peter A. Raffensperger