公开(公告)号：US11818554B2

公开(公告)日：2023-11-14

申请号：US17680138

申请日：2022-02-24

Applicant: Apple Inc.

Inventor： Jakub Mazur ,  Tyrone T. Chen ,  Hang Zhang

IPC: G06F3/16 ,  H04R29/00 ,  G01H3/14 ,  H03G11/00 ,  A61B5/12 ,  A61B5/00 ,  G06F16/61 ,  G01H11/06 ,  G06V10/44

CPC classification number: H04R29/008 ,  A61B5/12 ,  A61B5/6817 ,  G01H3/14 ,  G01H11/06 ,  G06F3/165 ,  G06F16/61 ,  G06V10/44 ,  H03G11/008 ,  H04R2460/15

Abstract: In-ear sound pressure level, SPL, is determined that is caused by output audio being converted into sound by a headset worn by a user. The in-ear SPL is converted into a sound sample having units that are suitable for evaluating sound noise exposure. These operations are repeated to produce a sequence of sound samples during playback. This sequence of sound samples is then written to a secure database. Access to the database is authorized by the user. Other aspects are also described and claimed.

公开(公告)号：US11792864B2

公开(公告)日：2023-10-17

申请号：US17674232

申请日：2022-02-17

Applicant: Apple Inc.

Inventor： Jianglei Ma ,  Hua Xu ,  Ming Jia ,  Sarah Boumendil ,  Evelyne Le Strat ,  Hang Zhang ,  Peiying Zhu ,  Wen Tong

IPC: H04W74/08 ,  H04L1/06 ,  H04L5/02 ,  H04L27/26 ,  H04W74/00

CPC classification number: H04W74/0891 ,  H04L1/06 ,  H04L5/023 ,  H04L27/2627 ,  H04L27/2657 ,  H04W74/006 ,  H04W74/0866 ,  H04L1/0618 ,  H04L27/2662

Abstract: Physical layer structures and access schemes for use in such networks are described and in particular initial access channel (IACH) structures are proposed. A spectrum efficient downlink (DL) IACH design supports different types of User Equipment (UE) capabilities and different system bandwidths. An IACH includes the synchronization channel (SCH) and broadcast-control channel (BCH). A non-uniform SCH for all system bandwidths is provided, as well as scalable bandwidth BCH depending on system bandwidth. An initial access procedure is provided, as well as an access procedure.

公开(公告)号：US11595950B2

公开(公告)日：2023-02-28

申请号：US17725795

申请日：2022-04-21

Applicant: Apple Inc.

Inventor： Mo-Han Fong ,  Hang Zhang ,  Sophie Vrzic ,  Robert Novak ,  Jun Yuan ,  Dong-Sheng Yu

IPC: H04W72/04 ,  H04L1/18 ,  H04L5/00 ,  H04W24/10 ,  H04W48/12 ,  H04W72/08 ,  H04W48/14 ,  H04W48/10 ,  H04L1/1812 ,  H04W72/0446 ,  H04W72/0453 ,  H04W88/06

Abstract: To effectively and efficiently provide control information, a broadcast pointer channel (BPCH) may be used to identify the type and perhaps relative location of control information that is being provided in a given frame structure, such as a sub-frame, frame, or superframe. A sub-frame (or like framing entity, such a frame or superframe) may have a BPCH and a corresponding system control information segment in which control information may reside. The system control information segment may have any number of control information blocks, wherein each control information block that is present may correspond to a particular type of control information. The BPCH is used to identify the type of control information that is present in a corresponding system control information segment, and if needed or desired, the relative locations of the various control information.

公开(公告)号：US20220248389A1

公开(公告)日：2022-08-04

申请号：US17725795

申请日：2022-04-21

Applicant: Apple Inc.

Inventor： Mo-Han Fong ,  Hang Zhang ,  Sophie Vrzic ,  Robert Novak ,  Jun Yuan ,  Dong-Sheng Yu

IPC: H04W72/04 ,  H04W48/12 ,  H04L1/18 ,  H04W24/10 ,  H04W72/08 ,  H04L5/00

Abstract: To effectively and efficiently provide control information, a broadcast pointer channel (BPCH) may be used to identify the type and perhaps relative location of control information that is being provided in a given frame structure, such as a sub-frame, frame, or superframe. A sub-frame (or like framing entity, such a frame or superframe) may have a BPCH and a corresponding system control information segment in which control information may reside. The system control information segment may have any number of control information blocks, wherein each control information block that is present may correspond to a particular type of control information. The BPCH is used to identify the type of control information that is present in a corresponding system control information segment, and if needed or desired, the relative locations of the various control information.

公开(公告)号：US20220174754A1

公开(公告)日：2022-06-02

申请号：US17674232

申请日：2022-02-17

Applicant: Apple Inc.

Inventor： Jianglei Ma ,  Hua Xu ,  Ming Jia ,  Sarah Boumendil ,  Evelyne Le Strat ,  Hang Zhang ,  Peiying Zhu ,  Wen Tong

IPC: H04W74/08 ,  H04L1/06 ,  H04L5/02 ,  H04L27/26 ,  H04W74/00

Abstract: Physical layer structures and access schemes for use in such networks are described and in particular initial access channel (IACH) structures are proposed. A spectrum efficient downlink (DL) IACH design supports different types of User Equipment (UE) capabilities and different system bandwidths. An IACH includes the synchronization channel (SCH) and broadcast-control channel (BCH). A non-uniform SCH for all system bandwidths is provided, as well as scalable bandwidth BCH depending on system bandwidth. An initial access procedure is provided, as well as an access procedure.

公开(公告)号：US11268848B2

公开(公告)日：2022-03-08

申请号：US16872084

申请日：2020-05-11

Applicant: Apple Inc.

Inventor： Jakub Mazur ,  Tyrone T. Chen ,  Hang Zhang

IPC: G06F17/00 ,  G01H3/14 ,  H03G11/00 ,  A61B5/12 ,  A61B5/00 ,  G06K9/46 ,  G06F16/61 ,  G01H11/06 ,  G06F3/16

Abstract: In-ear sound pressure level, SPL, is determined that is caused by output audio being converted into sound by a headset worn by a user. The in-ear SPL is converted into a sound sample having units that are suitable for evaluating sound noise exposure. These operations are repeated to produce a sequence of sound samples during playback. This sequence of sound samples is then written to a secure database. Access to the database is authorized by the user. Other aspects are also described and claimed.

公开(公告)号：US11197295B2

公开(公告)日：2021-12-07

申请号：US16747156

申请日：2020-01-20

Applicant: Apple Inc.

Inventor： Hang Zhang ,  Jianglei Ma ,  Ming Jia ,  Sophie Vrzic ,  Mo-Han Fong ,  Dong-Sheng Yu ,  Hua Xu

IPC: H04W72/04 ,  H04B7/12 ,  H04L1/00 ,  H04L5/00 ,  H04L25/02 ,  H04L27/26 ,  H04L29/06 ,  H04B7/06 ,  H04L1/06 ,  H04L1/18 ,  H04L25/03

Abstract: Systems and methods for OFDM channelization are provided that allow for the coexistence of sub-band channels and diversity channels. Methods of defining diversity sub-channels and sub-band sub-channels are provided and systematic channel definition and labeling schemes are provided.

公开(公告)号：US11096155B2

公开(公告)日：2021-08-17

申请号：US16593326

申请日：2019-10-04

Applicant: Apple Inc.

Inventor： Hang Zhang ,  Jianglei Ma ,  Ming Jia ,  Mo-Han Fong ,  Peiying Zhu ,  Wen Tong

IPC: H04W72/04 ,  H04W72/00 ,  H04W4/08 ,  H04W48/10 ,  H04L12/18 ,  H04B7/0413 ,  H04L1/18 ,  H04L27/26 ,  H04L29/12 ,  H04W74/00 ,  H04L5/02

Abstract: A method and system for allocating shareable wireless transmission resources. A resource pool is established. The resource pool is divided into a plurality of physical layer allocation units usable for wirelessly transmitting control information and traffic data. The allocation units are assigned at the media access control layer for the wireless transmission of the control information and traffic data. The system and method of the present invention also allows mobile stations to be dynamically grouped into multicast groupings to reduce system overhead resource requirements.

公开(公告)号：US20210007154A1

公开(公告)日：2021-01-07

申请号：US17030078

申请日：2020-09-23

Applicant: Apple Inc.

Inventor： Jianglei Ma ,  Hua Xu ,  Ming Jia ,  Sarah Boumendil ,  Evelyne Le Strat ,  Hang Zhang ,  Peiying Zhu ,  Wen Tong

IPC: H04W74/08 ,  H04L1/06 ,  H04L5/02 ,  H04L27/26 ,  H04W74/00

Abstract: Physical layer structures and access schemes for use in such networks are described and in particular initial access channel (IACH) structures are proposed. A spectrum efficient downlink (DL) IACH design supports different types of User Equipment (UE) capabilities and different system bandwidths. An IACH includes the synchronization channel (SCH) and broadcast-control channel (BCH). A non-uniform SCH for all system bandwidths is provided, as well as scalable bandwidth BCH depending on system bandwidth. An initial access procedure is provided, as well as an access procedure.

公开(公告)号：US10862609B2

公开(公告)日：2020-12-08

申请号：US16716845

申请日：2019-12-17

Applicant: Apple Inc.

Inventor： Jianglei Ma ,  Ming Jia ,  Wen Tong ,  Peiying Zhu ,  Hua Xu ,  Hang Zhang ,  Mo-Han Fong

IPC: H04J13/00 ,  H04B7/06 ,  H04L5/00 ,  H04L25/02 ,  H04L27/26 ,  H04B1/707 ,  H04B7/0404 ,  H04W72/04 ,  H04J13/16 ,  H04L25/03

Abstract: In some embodiments of the invention, OFDM symbols are transmitted as a plurality of clusters. A cluster includes a plurality of OFDM sub-carriers in frequency, over a plurality of OFDM symbol durations in time. Each cluster includes data as well as pilot information as a reference signal for channel estimation. In some embodiments, a plurality of clusters collectively occupy the available sub-carrier set in the frequency domain that is used for transmission. In some embodiments of the invention data and/or pilots are spread within each cluster using code division multiplexing (CDM). In some embodiments pilots and data are separated by distributing data on a particular number of the plurality of OFDM symbol durations and pilots on a remainder of the OFDM symbol durations. CDM spreading can be performed in time and/or frequency directions.