Patents by Inventor David E. Romblom

David E. Romblom 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: 11962984
    Abstract: A crosstalk cancellation filter set configured for use in delivering binaural signals to human ears is provided. The crosstalk cancellation filter set includes a pressure matching system configured to perform spatial filtering or sound field control and an obstructed field model in communication with the pressure matching system. The crosstalk cancellation filter set is configured to take acoustic advantage of scattering effects and occlusional effects caused by violations to a free-field assumption, thereby delivering improved crosstalk cancellation acoustic displays to a listener without the use of headphones.
    Type: Grant
    Filed: February 13, 2023
    Date of Patent: April 16, 2024
    Assignee: Google LLC
    Inventors: Elliot M. Patros, David E. Romblom, Robert J. E. Dalton, Jr., Peter G. Otto
  • Publication number: 20240007820
    Abstract: An audio system and a method of providing a faded audio experience during a transition from a first audio experience to a second audio experience, is described. The first audio experience can include playback of an audio signal spatialized using a first space impulse response that is generated by the audio system. The second audio experience includes playback of the audio signal spatialized using a second space impulse response that is received by the audio system. The audio system generates a hybrid space impulse response based on the first space impulse response and the second space impulse response. During the transition between audio experiences, the hybrid space impulse response is used to spatialize the audio signal to create the faded audio experience. Other aspects are also described and claimed.
    Type: Application
    Filed: June 22, 2023
    Publication date: January 4, 2024
    Inventors: Soenke Pelzer, David E. Romblom, Kacper Kosikowski, Dirk Schroeder
  • Patent number: 11751000
    Abstract: A method of modeling the human head is provided. The human head model has a width and an aspect ratio. The aspect ratio defines different head shapes independent of the size of the human head model. The method includes the steps of forming a high-frequency head model based on ray-tracing and a plurality of half plane sections, coupling the high-frequency head model with a far-field shadowing filter, coupling the far-field shadowing filter with a near-field compensation filter to compensate for acoustic changes between the far-field and near-field regions and modifying the aspect ratio of the human head model to configure variable geometric models of the human head ranging from a nearly spherical to a very narrow embodiment.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: September 5, 2023
    Assignee: Google LLC
    Inventors: Hélène Bahu, David E. Romblom
  • Publication number: 20230274756
    Abstract: An object can represent computer applications that play audio. Audio parameters associated with the audio can be determined based on size of the object so that when the object is large, the audio sounds like it originates from a large sound source or sources. When the object is small, the audio parameters are determined so that the audio sounds like it originates from a small sound source. Other aspects are described.
    Type: Application
    Filed: February 15, 2023
    Publication date: August 31, 2023
    Inventors: Shai MESSINGHER LANG, Christopher T. EUBANK, Stephen E. PINTO, Kacper KOSIKOWSKI, James BEAN, Matthew S. CONNOLLY, David E. ROMBLOM
  • Publication number: 20230269536
    Abstract: A crosstalk cancellation filter set configured for use in delivering binaural signals to human ears is provided. The crosstalk cancellation filter set includes a pressure matching system configured to perform spatial filtering or sound field control and an obstructed field model in communication with the pressure matching system. The crosstalk cancellation filter set is configured to take acoustic advantage of scattering effects and occlusional effects caused by violations to a free-field assumption, thereby delivering improved crosstalk cancellation acoustic displays to a listener without the use of headphones.
    Type: Application
    Filed: February 13, 2023
    Publication date: August 24, 2023
    Applicant: Google LLC
    Inventors: Elliot M. Patros, David E. Romblom, Robert J. E. Dalton, JR., Peter G. Otto
  • Patent number: 11631393
    Abstract: Ray tracing is performed with sound sources and a listener position in a listening environment, to generate impulse responses associated with each of the sound sources. The impulse responses are combined to form a combined impulse response. One or more filters are determined, each corresponding to the sound sources, based on the combined impulse response and the impulse responses. Each filter serves as a correction factor that holds unique acoustic information for the sound source that the filter is associated with. The combined impulse response and the filters can be applied to one or more audio signals that contain the sound sources, resulting in audio having reverberation that is tailored to the various sound sources. Other aspects are described and claimed.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: April 18, 2023
    Assignee: Apple Inc.
    Inventors: Soenke Pelzer, David E. Romblom, Dirk Schroeder, Jonathan D. Sheaffer
  • Publication number: 20230104111
    Abstract: One or more acoustic parameters of a current acoustic environment of a user may be determined based on sensor signals captured by one or more sensors of the device. One or more preset acoustic parameters may be determined based on the one or more acoustic parameters of the current acoustic environment of the user and an acoustic environment of an audio file comprising audio signals that is determined based on the audio signals of the audio file or metadata of the audio file. The audio signals may be spatially rendered by applying spatial filters that include the one or more preset acoustic parameters to the audio signals, resulting in binaural audio signals. The binaural audio signals may be used to drive speakers of a headset. Other aspects are described and claimed.
    Type: Application
    Filed: August 19, 2022
    Publication date: April 6, 2023
    Inventors: Prateek Murgai, John E. Arthur, Joshua D. Atkins, Juha O. Merimaa, Dipanjan Sen, Brandon J. Rice, Alexander Singh Alvarado, Jonathan D. Sheaffer, Benjamin Bernard, David E. Romblom
  • Patent number: 11589162
    Abstract: A crosstalk cancellation filter set configured for use in delivering binaural signals to human ears is provided. The crosstalk cancellation filter set includes a pressure matching system configured to perform spatial filtering or sound field control and an obstructed field model in communication with the pressure matching system. The crosstalk cancellation filter set is configured to take acoustic advantage of scattering effects and occlusional effects caused by violations to a free-field assumption, thereby delivering improved crosstalk cancellation acoustic displays to a listener without the use of headphones.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: February 21, 2023
    Assignee: Google LLC
    Inventors: Elliot M. Patros, David E. Romblom, Robert J. E. Dalton, Jr., Peter G. Otto
  • Publication number: 20220086589
    Abstract: A method of modeling the human head is provided. The human head model has a width and an aspect ratio. The aspect ratio defines different head shapes independent of the size of the human head model. The method includes the steps of forming a high-frequency head model based on ray-tracing and a plurality of half plane sections, coupling the high-frequency head model with a far-field shadowing filter, coupling the far-field shadowing filter with a near-field compensation filter to compensate for acoustic changes between the far-field and near-field regions and modifying the aspect ratio of the human head model to configure variable geometric models of the human head ranging from a nearly spherical to a very narrow embodiment.
    Type: Application
    Filed: January 31, 2020
    Publication date: March 17, 2022
    Applicants: Google LLC, Google LLC
    Inventors: Hélène Bahu, David E. Romblom
  • Publication number: 20220021975
    Abstract: A crosstalk cancellation filter set configured for use in delivering binaural signals to human ears is provided. The crosstalk cancellation filter set includes a pressure matching system configured to perform spatial filtering or sound field control and an obstructed field model in communication with the pressure matching system. The crosstalk cancellation filter set is configured to take acoustic advantage of scattering effects and occlusional effects caused by violations to a free-field assumption, thereby delivering improved crosstalk cancellation acoustic displays to a listener without the use of headphones.
    Type: Application
    Filed: November 20, 2019
    Publication date: January 20, 2022
    Applicant: Google LLC
    Inventors: Elliot M. Patros, David E. Romblom, Robert J. E. Dalton, JR., Peter G. Otto
  • Publication number: 20220014865
    Abstract: A situation awareness system is provided and includes sensors configured to sense an object and generate signals of the sensed object. An identification and classification module is in communication with the sensors. The identification and classification module is configured to identify the sensed object and determine the position, speed and direction of each sensed object. A sound synthesis module is in communication with the identification and classification module. The sound synthesis module is configured to create sounds for the sensed object and further configured to create a binaural virtual acoustic model for the sensed object. The binaural virtual acoustic model is used to position the sensed object in virtual space at a location corresponding to its location in real space. One or more beam forming arrays is in communication with the sound synthesis module and configured to delivery sound. The delivered sound increases the situational awareness of a vehicle operator.
    Type: Application
    Filed: November 20, 2019
    Publication date: January 13, 2022
    Inventors: Perry Teevens, Robert J. E. Dalton, Jr., David E. Romblom, Peter G. Otto, Elliot M. Patros