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公开(公告)号：US20180220297A1
公开(公告)日：2018-08-02
申请号：US15879137
申请日：2018-01-24
Applicant: Microsoft Technology Licensing, LLC
Inventor： Yong Rui , Daniel Morris , Andrew D. Wilson , Nikunj Raghuvanshi , Desney S. Tan , Jeannette M. Wing
CPC classification number: G06F21/83 , H04W12/02 , G06F21/6245 , G06F2221/031
Abstract: A privacy preserving sensor apparatus is described herein. The privacy preserving sensor apparatus includes a microphone that is configured to output a signal that is indicative of audio in an environment. The privacy preserving sensor apparatus further includes feature extraction circuitry integrated in the apparatus with the microphone, the feature extraction circuitry configured to extract features from the signal output by the microphone that are usable to detect occurrence of an event in the environment, wherein the signal output by the microphone is unable to be reconstructed based solely upon the features.
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公开(公告)号：US09922463B2
公开(公告)日：2018-03-20
申请号：US14821632
申请日：2015-08-07
Applicant: Microsoft Technology Licensing, LLC
Inventor： Jaron Lanier , Kishore Rathinavel , Nikunj Raghuvanshi
CPC classification number: G06T19/006 , G02B27/017 , G02B2027/0138 , G02B2027/014 , G02B2027/0178 , G06F3/011 , G06T11/20 , G06T11/60 , G09B23/06 , H04S7/304 , H04S2400/11 , H04S2400/15
Abstract: The techniques describe herein use sensor(s) to scan a real-world environment and obtain data associated with geometry of the real-world environment that affects how energy propagates (e.g., locations of spatial objects in a room). The sensor(s) also detect energy (e.g., sound) in the real-world environment, from which a location of a source of the energy can be determined. The techniques combine the geometry data and the energy data to determine how the detected energy propagates from the location of the source through the real-world environment. The techniques can then cause a representation of the propagating energy to be displayed, to a user, as virtual content via a mixed reality device. Accordingly, a user is able to see energy that is otherwise invisible.
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公开(公告)号：US20230280902A1
公开(公告)日：2023-09-07
申请号：US17736583
申请日：2022-05-04
Applicant: Microsoft Technology Licensing, LLC
Inventor： John Michael Snyder , Nikunj Raghuvanshi , Michael G. Chemistruck
IPC: G06F3/06
CPC classification number: G06F3/0608 , G06F3/0655 , G06F3/0679
Abstract: This document relates to the compressing and/or decompressing of spatial data. A block of spatial data can be compressed by iteratively performing compression iterations on portions of the block and splitting the portions into further portions until compression is completed. The compressed data can include first encoded values indicating whether matches were obtained for comparisons to test values during the compression iterations. The compressed data can also include second encoded values reflecting results of one or more modifications performed on the test values during the compression iterations.
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Patent Agency Ranking
公开(公告)号：US11606662B2
公开(公告)日：2023-03-14
申请号：US17307694
申请日：2021-05-04
Applicant: Microsoft Technology Licensing, LLC
Inventor： Nikunj Raghuvanshi
Abstract: The description relates to modeling acoustic effects in scenes with dynamic portals. One implementation includes obtaining a representation of a scene having a plurality of portals and simulating sound travel in the scene using a plurality of probes deployed in the scene. The implementation also includes determining acoustic parameters for initial sound traveling between respective probes based at least on the simulating. The implementation also includes identifying one or more intercepted portals in the scene that are intercepted by a particular initial sound path from a particular source location to a particular listener location, using particular acoustic parameters for the particular source location and the particular listener location.
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公开(公告)号：US11595773B2
公开(公告)日：2023-02-28
申请号：US17236605
申请日：2021-04-21
Applicant: Microsoft Technology Licensing, LLC
Inventor： Nikunj Raghuvanshi , Keith William Godin , John Michael Snyder , Chakravarty Reddy Alla Chaitanya
Abstract: The description relates to rendering directional sound. One implementation includes receiving directional impulse responses corresponding to a scene. The directional impulse responses can correspond to multiple sound source locations and a listener location in the scene. The implementation can also include encoding the directional impulse responses to obtain encoded departure direction parameters for individual sound source locations. The implementation can also include outputting the encoded departure direction parameters, the encoded departure direction parameters providing sound departure directions from the individual sound source locations for rendering of sound.
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公开(公告)号：US11285393B1
公开(公告)日：2022-03-29
申请号：US17225014
申请日：2021-04-07
Applicant: Microsoft Technology Licensing, LLC
Abstract: Examples are disclosed that relate to determining acoustic properties of audio sources in virtual environments. One example provides a method comprising receiving a query on behalf of a non-player entity regarding an audio source, the query including a position of the non-player entity, and based at least on the position of the non-player entity, determining one or more acoustic properties of sound emitted by the audio source at the position of the non-player entity by accessing a position-indexed data structure comprising one or more values for one or more audio cues, each value influencing a corresponding acoustic property of sound emitted by the audio source at a corresponding position. The method further comprises providing the one or more determined acoustic properties to the application, where the application is configured to control behavior of the non-player entity based at least on the one or more determined acoustic properties.
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公开(公告)号：US11012802B2
公开(公告)日：2021-05-18
申请号：US16459918
申请日：2019-07-02
Applicant: Microsoft Technology Licensing, LLC
Inventor： Christoph Felix Hold , Hannes Gamper , Ville Topias Pulkki , Nikunj Raghuvanshi , Ivan Jelev Tashev
Abstract: A computing system that facilitates decoding a spherical harmonics (SH) representation of a three-dimensional sound signal to a binaural sound signal is described herein. The computing system generates a binaural sound signal based upon the SH representation, a tapering window function that is selected based on an SH encoding order of the SH representation, and a coloration compensation filter that incorporates the tapering window function. The computing system causes the binaural sound signal to be played over at least two speakers.
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公开(公告)号：US20170039767A1
公开(公告)日：2017-02-09
申请号：US14821632
申请日：2015-08-07
Applicant: Microsoft Technology Licensing, LLC
Inventor： Jaron Lanier , Kishore Rathinavel , Nikunj Raghuvanshi
CPC classification number: G06T19/006 , G02B27/017 , G02B2027/0138 , G02B2027/014 , G02B2027/0178 , G06F3/011 , G06T11/20 , G06T11/60 , G09B23/06 , H04S7/304 , H04S2400/11 , H04S2400/15
Abstract: The techniques describe herein use sensor(s) to scan a real-world environment and obtain data associated with geometry of the real-world environment that affects how energy propagates (e.g., locations of spatial objects in a room). The sensor(s) also detect energy (e.g., sound) in the real-world environment, from which a location of a source of the energy can be determined. The techniques combine the geometry data and the energy data to determine how the detected energy propagates from the location of the source through the real-world environment. The techniques can then cause a representation of the propagating energy to be displayed, to a user, as virtual content via a mixed reality device. Accordingly, a user is able to see energy that is otherwise invisible.
Abstract translation: 本文描述的技术使用传感器来扫描真实环境并获得与影响能量如何传播的真实世界环境的几何相关的数据（例如，空间中的空间物体的位置）。 传感器还检测真实世界环境中的能量（例如，声音），从中可以确定能量源的位置。 这些技术结合了几何数据和能量数据，以确定检测到的能量如何从源的位置传播到真实环境。 然后，这些技术可以使传播能量的表示通过混合现实设备显示给用户作为虚拟内容。 因此，用户能够看到另外不可见的能量。
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