公开(公告)号：US20210400419A1

公开(公告)日：2021-12-23

申请号：US17351183

申请日：2021-06-17

Applicant: Apple Inc.

Inventor： Ozhan Turgut ,  Halil Ibrahim Basturk ,  Alexander Singh Alvarado ,  Adam S. Howell ,  Hung A. Pham

IPC: H04S7/00 ,  G06F3/01 ,  G01P15/18

Abstract: Embodiments are disclosed for head dimension estimation for spatial audio applications. In an embodiment, a method comprises: obtaining, using one or more processors of an audio headset worn on a user's head, acceleration samples and rotation rate samples over a specified time window while the user rotates their head, the acceleration samples and rotation rate samples measured using motion sensors in the headset; determining a function that relates the acceleration samples to the rotation rate samples; comparing the function to a plurality of reference functions, where each reference function corresponds to a different head dimension in a nominal range of head dimensions; and estimating a dimension of the user's head based on the comparing.

公开(公告)号：US20210400414A1

公开(公告)日：2021-12-23

申请号：US17351205

申请日：2021-06-17

Applicant: Apple Inc.

Inventor： Xiaoyuan Tu ,  Margaret H. Tam ,  Halil Ibrahim Basturk ,  Alexander Singh Alvarado ,  Adam S. Howell

IPC: H04S7/00

Abstract: Embodiments are disclosed for head tracking state detection based on correlated motion of a source device and a headset communicatively coupled to the source device. In an embodiment, a method comprises: obtaining, using one or more processors of a source device, source device motion data from a source device and headset motion data from a headset; determining, using the one or more processors, correlation measures using the source device motion data and the headset motion data; updating, using the one or more processors, a motion tracking state based on the determined correlation measures; and initiating head pose tracking in accordance with the updated motion tracking state.

公开(公告)号：US20250089016A1

公开(公告)日：2025-03-13

申请号：US18806172

申请日：2024-08-15

Applicant: Apple Inc.

Inventor： Gabrielle A. Belzberg ,  Alexander J. Wiens ,  Halil Ibrahim Basturk ,  Benjamin A. Werner ,  Adam S. Howell ,  Hui Lin ,  Jun Kyu Lee ,  Jack D. Reilly ,  Behrooz Shahsavari ,  Hojjat Seyed Mousavi

IPC: H04W64/00

Abstract: In some implementations, techniques may include at a plurality of times while a user of the first portable device is moving with the first portable device: performing ranging at a respective position with a second device to determine a respective distance, thereby determining a plurality of respective distances, where the second device is stationary; obtaining raw measurements from a motion sensor of the first portable device. In addition, the device may include using the raw measurements at the plurality of times to determine relative positions at the plurality of times, the relative position from an initial position. The techniques may include estimating a second position of the second device that optimizes a loss function that includes differences of the respective distances at the relative positions and the actual distance between the relative positions and the second position.

公开(公告)号：US12108237B2

公开(公告)日：2024-10-01

申请号：US17351205

申请日：2021-06-17

Applicant: Apple Inc.

Inventor： Xiaoyuan Tu ,  Margaret H. Tam ,  Halil Ibrahim Basturk ,  Alexander Singh Alvarado ,  Adam S. Howell

IPC: H04S7/00

CPC classification number: H04S7/303 ,  H04S2420/01

Abstract: Embodiments are disclosed for head tracking state detection based on correlated motion of a source device and a headset communicatively coupled to the source device. In an embodiment, a method comprises: obtaining, using one or more processors of a source device, source device motion data from a source device and headset motion data from a headset; determining, using the one or more processors, correlation measures using the source device motion data and the headset motion data; updating, using the one or more processors, a motion tracking state based on the determined correlation measures; and initiating head pose tracking in accordance with the updated motion tracking state.

公开(公告)号：US12069469B2

公开(公告)日：2024-08-20

申请号：US17351183

申请日：2021-06-17

Applicant: Apple Inc.

Inventor： Ozhan Turgut ,  Halil Ibrahim Basturk ,  Alexander Singh Alvarado ,  Adam S. Howell ,  Hung A. Pham

IPC: H04S7/00 ,  G01P15/18 ,  G06F3/01

CPC classification number: H04S7/304 ,  G01P15/18 ,  G06F3/012

Abstract: Embodiments are disclosed for head dimension estimation for spatial audio applications. In an embodiment, a method comprises: obtaining, using one or more processors of an audio headset worn on a user's head, acceleration samples and rotation rate samples over a specified time window while the user rotates their head, the acceleration samples and rotation rate samples measured using motion sensors in the headset; determining a function that relates the acceleration samples to the rotation rate samples; comparing the function to a plurality of reference functions, where each reference function corresponds to a different head dimension in a nominal range of head dimensions; and estimating a dimension of the user's head based on the comparing.

公开(公告)号：US11950083B2

公开(公告)日：2024-04-02

申请号：US17351205

申请日：2021-06-17

Applicant: Apple Inc.

Inventor： Xiaoyuan Tu ,  Margaret H. Tam ,  Halil Ibrahim Basturk ,  Alexander Singh Alvarado ,  Adam S. Howell

IPC: H04S7/00

CPC classification number: H04S7/303 ,  H04S2420/01

Abstract: Embodiments are disclosed for head tracking state detection based on correlated motion of a source device and a headset communicatively coupled to the source device. In an embodiment, a method comprises: obtaining, using one or more processors of a source device, source device motion data from a source device and headset motion data from a headset; determining, using the one or more processors, correlation measures using the source device motion data and the headset motion data; updating, using the one or more processors, a motion tracking state based on the determined correlation measures; and initiating head pose tracking in accordance with the updated motion tracking state.

公开(公告)号：US20230358845A1

公开(公告)日：2023-11-09

申请号：US18304104

申请日：2023-04-20

Applicant: Apple Inc.

Inventor： Christina Selle ,  Bharath Narasimha Rao ,  Saurabh Godha ,  Andrew J. Kerns ,  Adam M. Driscoll ,  Gunes Dervisoglu ,  Archana Belvadi ,  Jong-Ki Lee ,  Girish Joshi ,  Halil Ibrahim Basturk ,  Seyyedeh Mahsa Mirzargar ,  Jonathan M. Beard ,  Richard Najarian

IPC: G01S5/02 ,  H04W64/00 ,  H04L5/00 ,  H04W52/02

CPC classification number: G01S5/02521 ,  H04W64/003 ,  H04L5/0048 ,  H04W52/0229

Abstract: Methods, non-transitory machine-readable mediums, and system to provide location services are described. In an embodiment, a method provides receiving at least two position fixes for a trajectory of an electronic device, where the at least two position fixes are obtained intermittently, matching the at least two position fixes to points on a path indicated in map data, and computing a distance for the trajectory using distance information using the map data.