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公开(公告)号：US11751000B2
公开(公告)日：2023-09-05
申请号：US17419840
申请日：2020-01-31
申请人： Google LLC
发明人： Hélène Bahu , David E. Romblom
CPC分类号： H04S7/304 , H04R5/027 , H04S2420/01
摘要： 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.
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公开(公告)号：US20220086589A1
公开(公告)日：2022-03-17
申请号：US17419840
申请日：2020-01-31
申请人： Google LLC
发明人： Hélène Bahu , David E. Romblom
摘要： 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.
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3.发明公开公开(公告)号：US20230269536A1
公开(公告)日：2023-08-24
申请号：US18168069
申请日：2023-02-13
申请人： Google LLC
摘要： 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.
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公开(公告)号：US11589162B2
公开(公告)日：2023-02-21
申请号：US17295144
申请日：2019-11-20
申请人： Google LLC
摘要： 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.
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公开(公告)号：US11962984B2
公开(公告)日：2024-04-16
申请号：US18168069
申请日：2023-02-13
申请人： Google LLC
摘要： 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.
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公开(公告)号：US20220021975A1
公开(公告)日：2022-01-20
申请号：US17295144
申请日：2019-11-20
申请人： Google LLC
摘要： 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.
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公开(公告)号：US12052559B2
公开(公告)日：2024-07-30
申请号：US17295158
申请日：2019-11-20
申请人： Google LLC
CPC分类号： H04S7/302 , B60K35/00 , B60K35/60 , B60W50/14 , H04R5/023 , B60W2050/143 , B60W2400/00 , B60W2420/408 , B60W2554/80 , H04R2499/13 , H04S2400/01 , H04S2420/01
摘要： 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.
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公开(公告)号：US20220014865A1
公开(公告)日：2022-01-13
申请号：US17295158
申请日：2019-11-20
申请人： Google LLC
摘要： 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.
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