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公开(公告)号：US11889291B2
公开(公告)日：2024-01-30
申请号：US17950261
申请日：2022-09-22
Applicant: Snap Inc.
Inventor： Ashwani Arya , Tejas Bahulkar , Dunxu Hu , Daniel C. Wiggins
CPC classification number: H04S7/304 , G02B27/0172 , H04R3/04 , H04R5/033 , H04R5/04 , H04S1/007 , H04S7/307 , G02B2027/0134 , G02B2027/0138 , H04S2420/01
Abstract: Example systems, devices, media, and methods are described for efficiently processing an audio track of a virtual object with a head-related transfer function (HRTF). Audio tracks are processed by determining a current position (direction and optionally distance) of the virtual object with respect to the head of a user, identifying a current audio zone from predefined audio zones responsive to the determined current position where each of the audio zones has a corresponding left predefined filter and a corresponding right predefined filter, applying the left and the right predefined filters corresponding to the current audio zone to the audio track to produce a left audio signal and a right audio signal, and presenting the left audio signal with a first speaker and the right audio signal with a second speaker.
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公开(公告)号：US20230396877A1
公开(公告)日：2023-12-07
申请号：US18453591
申请日：2023-08-22
Applicant: Snap Inc.
Inventor： Zhibin Zhang , Russell Douglas Patton , Peter Brook , Dunxu Hu
CPC classification number: H04N23/651 , G06F1/3287 , G06F1/163 , H04W4/029 , H04W4/027 , H04W52/0254 , H04N23/60 , H04N5/76
Abstract: Systems and methods for determining a location of a wearable electronic device are disclosed. In some aspects, the device includes a position acquisition device and an accelerometer. A hardware processor included in the device may be configured to generally maintain the position acquisition device in a low power state to save power. When a video or image is captured, it may tag the video or image with first location information. Given the inoperative position acquisition device, a current location may not be known. In some aspects, in response to a need for location information, measurements from an accelerometer may be stored. The position acquisition device may also be transitioned to an operative state, and after some time delay, a second location determined. In some aspects, the location of the capture may then be obtained based on the acceleration measurements and the second location.
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公开(公告)号：US20200314577A1
公开(公告)日：2020-10-01
申请号：US16732899
申请日：2020-01-02
Applicant: Snap Inc.
Abstract: Head-wearable apparatus to generate binaural audio content includes a first stem coupled to a first microphone housing that encases first front microphone and first rear microphone that generates acoustic signals, respectively. First microphone housing includes a first front port that faces downward and a first rear port that faces backwards. Apparatus includes second stem coupled to second microphone housing that encases second front microphone and second rear microphone that generate acoustic signals, respectively. Second microphone housing includes second front port that faces downward and second rear port that faces backwards. Apparatus includes binaural audio processor that includes beamformer and storage device. Beamformer generate first beamformer signal based on acoustic signals from first front microphone and first rear microphone, and second beamformer based on acoustic signals from second front microphone and second rear microphone. Storage device stores first and second beamformer signals as a two-channel file.
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公开(公告)号：US12177561B2
公开(公告)日：2024-12-24
申请号：US18453591
申请日：2023-08-22
Applicant: Snap Inc.
Inventor： Zhibin Zhang , Russell Douglas Patton , Peter Brook , Dunxu Hu
IPC: H04N5/335 , G06F1/16 , G06F1/3287 , H04N5/76 , H04N23/60 , H04N23/65 , H04W4/02 , H04W52/02 , H04W4/029
Abstract: Systems and methods for determining a location of a wearable electronic device are disclosed. In some aspects, the device includes a position acquisition device and an accelerometer. A hardware processor included in the device may be configured to generally maintain the position acquisition device in a low power state to save power. When a video or image is captured, it may tag the video or image with first location information. Given the inoperative position acquisition device, a current location may not be known. In some aspects, in response to a need for location information, measurements from an accelerometer may be stored. The position acquisition device may also be transitioned to an operative state, and after some time delay, a second location determined. In some aspects, the location of the capture may then be obtained based on the acceleration measurements and the second location.
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公开(公告)号：US20240193870A1
公开(公告)日：2024-06-13
申请号：US18065180
申请日：2022-12-13
Applicant: Snap Inc.
Inventor： Kai Zhou , Dunxu Hu , Dominik Schnitzer
CPC classification number: G06T19/003 , G06F3/017 , G06F30/20 , G06T15/50
Abstract: A content creation system for extended Reality (XR) systems. The content creation system receives motion data of an XR device and generates trajectory data of a trajectory within a 3D environment model of a real-world scene based on the motion data where the trajectory simulates the motion of the XR device within the real-world scene. The content creation system receives user interaction event data and generates simulated sensor data based on the trajectory data, the 3D environment model, and the user interaction event data. The content creation system generates simulated tracking data based on the simulated sensor data and determines simulated power consumption data and thermal condition data based on operation of the computer vision component while generating the simulated tracking data. The content creation system generates a display from a user's perspective of the 3D environment model along with the simulated power consumption and thermal data.
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Patent Agency Ranking
公开(公告)号：US11445112B2
公开(公告)日：2022-09-13
申请号：US17125176
申请日：2020-12-17
Applicant: Snap Inc.
Inventor： Zhibin Zhang , Russell Douglas Patton , Peter Brook , Dunxu Hu
Abstract: Systems and methods for determining a location of a wearable electronic device are disclosed. In some aspects, the device includes a position acquisition device and an accelerometer. A hardware processor included in the device may be configured to generally maintain the position acquisition device in a low power state to save power. When a video or image is captured, it may tag the video or image with first location information. Given the inoperative position acquisition device, a current location may not be known. In some aspects, in response to a need for location information, measurements from an accelerometer may be stored. The position acquisition device may also be transitioned to an operative state, and after some time delay, a second location determined. In some aspects, the location of the capture may then be obtained based on the acceleration measurements and the second location.
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公开(公告)号：US20220109820A1
公开(公告)日：2022-04-07
申请号：US17553287
申请日：2021-12-16
Applicant: Snap Inc.
Inventor： Dmitry Ryuma , David Ben Ezra , Dunxu Hu , Patrick Timothy McSweeney Simons
IPC: H04N13/246 , H04N13/239 , H04N13/344 , G06T7/80 , G02B27/01
Abstract: Camera compensation methods and systems that compensate for misalignment of sensors/camera in stereoscopic camera systems. The compensation includes identifying a pitch angle offset between a first camera and a second camera, determining misalignment of the first and second cameras from the identified pitch angle offset, determining a relative compensation delay responsive to the determined misalignment, introducing the relative compensation delay to image streams produced by the cameras, and producing a stereoscopic image on a display from the first and second image streams with the introduced delay.
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公开(公告)号：US11044568B2
公开(公告)日：2021-06-22
申请号：US16732899
申请日：2020-01-02
Applicant: Snap Inc.
Inventor： Michael Asfaw , Dunxu Hu , Patrick Timothy McSweeney Simons , Victoria Lulu Wang Limketkai
Abstract: Head-wearable apparatus to generate binaural audio content includes a first stem coupled to a first microphone housing that encases first front microphone and first rear microphone that generates acoustic signals, respectively. First microphone housing includes a first front port that faces downward and a first rear port that faces backwards. Apparatus includes second stem coupled to second microphone housing that encases second front microphone and second rear microphone that generate acoustic signals, respectively. Second microphone housing includes second front port that faces downward and second rear port that faces backwards. Apparatus includes binaural audio processor that includes beamformer and storage device. Beamformer generate first beamformer signal based on acoustic signals from first front microphone and first rear microphone, and second beamformer based on acoustic signals from second front microphone and second rear microphone. Storage device stores first and second beamformer signals as a two-channel file.
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公开(公告)号：US20210105415A1
公开(公告)日：2021-04-08
申请号：US17125176
申请日：2020-12-17
Applicant: Snap Inc.
Inventor： Zhibin Zhang , Russell Douglas Patton , Peter Brook , Dunxu Hu
Abstract: Systems and methods for determining a location of a wearable electronic device are disclosed. In some aspects, the device includes a position acquisition device and an accelerometer. A hardware processor included in the device may be configured to generally maintain the position acquisition device in a low power state to save power. When a video or image is captured, it may tag the video or image with first location information. Given the inoperative position acquisition device, a current location may not be known. In some aspects, in response to a need for location information, measurements from an accelerometer may be stored. The position acquisition device may also be transitioned to an operative state, and after some time delay, a second location determined. In some aspects, the location of the capture may then be obtained based on the acceleration measurements and the second location.
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公开(公告)号：US20250123672A1
公开(公告)日：2025-04-17
申请号：US18985302
申请日：2024-12-18
Applicant: Snap Inc.
Inventor： Jason Heger , Dunxu Hu , Eric Nachtigall , Gerald Nilles , Ugur Olgun , Praveen Babu Vadivelu
IPC: G06F1/3231 , G06F1/16 , G06F3/14 , H04B17/318
Abstract: Methods and systems are disclosed for detecting whether a wearable device is being worn by a user. The system transmits a radio signal from a first communication device of a wearable device to a second communication device of the wearable device and measures a signal strength associated with the radio signal received by the second communication device. The system compares the signal strength to a threshold value and generates an indication of a wear status associated with the wearable device based on comparing the signal strength to the threshold value.
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