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公开(公告)号：US11632640B2
公开(公告)日：2023-04-18
申请号：US17303534
申请日：2021-06-01
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：US11259008B2
公开(公告)日：2022-02-22
申请号：US17180249
申请日：2021-02-19
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：US12216519B2
公开(公告)日：2025-02-04
申请号：US17820451
申请日：2022-08-17
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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公开(公告)号：US11756274B1
公开(公告)日：2023-09-12
申请号：US17859588
申请日：2022-07-07
Applicant: Snap Inc.
Inventor： Ashwani Arya , Alex Feinman , Daniel Harris , Tejas Bahulkar , Dunxu Hu
IPC: G06F3/01 , G06T19/00 , G06F1/3234 , G02B27/01
CPC classification number: G06T19/006 , G02B27/017 , G06F1/325 , G06F3/017 , G02B2027/0138
Abstract: A method for managing power resource in an augmented reality (AR) device is described. In one aspect, the method includes configuring a low-power mode to run on a low-power processor of the AR device using a first set of sensor data, and a high-power mode to run on a high-power processor of the AR device using a second set of sensor data, operating, using the low-power processor, a low-power application in the low-power mode based on the first set of sensor data, detecting a request to operate a high-power application at the AR device, in response to detecting the request, activating the second set of sensors of the AR device corresponding to the high-power mode, and operating, using the high-power processor, a high-power application in the high-power mode based on the second set of sensors.
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公开(公告)号：US20230247378A1
公开(公告)日：2023-08-03
申请号：US18296804
申请日：2023-04-06
Applicant: Snap Inc.
Inventor： Michael Asfaw , Dunxu Hu , Patrick Timothy McSweeney Simons , Victoria Lulu Wang Limketkai
CPC classification number: H04S1/007 , H04R3/005 , H04R1/406 , H04N23/54 , H04S2400/15
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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Patent Agency Ranking
公开(公告)号：US20220377247A1
公开(公告)日：2022-11-24
申请号：US17817725
申请日：2022-08-05
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：US20210345055A1
公开(公告)日：2021-11-04
申请号：US17303534
申请日：2021-06-01
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：US20250118037A1
公开(公告)日：2025-04-10
申请号：US18987940
申请日：2024-12-19
Applicant: Snap Inc.
Inventor： Ashwani Arya , Alex Feinman , Daniel Harris , Tejas Bahulkar , Dunxu Hu
IPC: G06F1/3287 , G06F1/16 , G06F1/3231 , G06F1/3234 , G06F1/3293 , G06F3/01
Abstract: A method for managing power resource in an augmented reality (AR) device is described. In one aspect, the method includes configuring a low-power mode to run on a low-power processor of the AR device using a first set of sensor data, and a high-power mode to run on a high-power processor of the AR device using a second set of sensor data, operating, using the low-power processor, a low-power application in the low-power mode based on the first set of sensor data, detecting a request to operate a high-power application at the AR device, in response to detecting the request, activating the second set of sensors of the AR device corresponding to the high-power mode, and operating, using the high-power processor, a high-power application in the high-power mode based on the second set of sensors.
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公开(公告)号：US12167218B2
公开(公告)日：2024-12-10
申请号：US18296804
申请日：2023-04-06
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：US20240061491A1
公开(公告)日：2024-02-22
申请号：US17820451
申请日：2022-08-17
Applicant: Snap Inc.
Inventor： Jason Heger , Dunxu Hu , Eric Nachtigall , Gerald Nilles , Ugur Olgun , Praveen Babu Vadivelu
IPC: G06F1/3231 , H04B17/318 , G06F3/14 , G06F1/16
CPC classification number: G06F1/3231 , H04B17/318 , G06F3/14 , G06F1/163
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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