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公开(公告)号：US20210397249A1
公开(公告)日：2021-12-23
申请号：US17351187
申请日：2021-06-17
Applicant: Apple Inc.
Inventor： Evan G. Kriminger , Xiaoyuan Tu , Alexander Singh Alvarado
Abstract: Embodiments are disclosed for head motion prediction for spatial audio applications. In an embodiment, a method comprises: obtaining motion data from a source device and a headset; obtaining transmission delays from a wireless stack of the source; estimating relative motion from the relative source device and headset motion data; calculating a first derivative of the relative motion data; forward predicting the estimated relative motion over the time delays using the first derivative and second derivative of relative motion; determining, using a head tracker, a head pose of the user based on the forward predicted relative motion data; and rendering, using the head pose, spatial audio for playback on the headset.
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公开(公告)号：US11586280B2
公开(公告)日：2023-02-21
申请号：US17351187
申请日：2021-06-17
Applicant: Apple Inc.
Inventor： Evan G. Kriminger , Xiaoyuan Tu , Alexander Singh Alvarado
Abstract: Embodiments are disclosed for head motion prediction for spatial audio applications. In an embodiment, a method comprises: obtaining motion data from a source device and a headset; obtaining transmission delays from a wireless stack of the source; estimating relative motion from the relative source device and headset motion data; calculating a first derivative of the relative motion data; forward predicting the estimated relative motion over the time delays using the first derivative and second derivative of relative motion; determining, using a head tracker, a head pose of the user based on the forward predicted relative motion data; and rendering, using the head pose, spatial audio for playback on the headset.
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公开(公告)号：US20240402211A1
公开(公告)日：2024-12-05
申请号：US18677583
申请日：2024-05-29
Applicant: Apple Inc.
Inventor： Jonathan R. Schoenberg , Yoav Feinmesser , Alexander Singh Alvarado , Evan G. Kriminger , Jonathan M. Beard , Hollie R. Figueroa , Eyal Waserman , Rafi Vitory , Ron Eyal , Yunxing Ye
Abstract: In some implementations, responsive to a trigger signal at an associated first time, a mobile device generating a first location value using a first ranging session with one or more other devices. The technique may include storing the first location value in a memory. The technique may include tracking, using a motion sensor of the mobile device, motion of the mobile device to determine a present location relative to the first location value. Further, the technique may include determining that a present location for the mobile device has changed by a predetermined threshold amount from the first location value since the associated first time. Responsive to the present location for the mobile device having changed by more than the predetermined threshold amount since the associated first time, the technique may include, generating a second location value using a second ranging session with the one or more other devices.
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