公开(公告)号：US20220390547A1

公开(公告)日：2022-12-08

申请号：US17820101

申请日：2022-08-16

Applicant: Google LLC

Inventor： Li-Xuan Chuo ,  Qi Jiang ,  Daniel Jose Fernandes Barros

IPC: G01S5/06 ,  H04W64/00

Abstract: This document describes techniques and systems for indoor localization using Bluetooth high-accuracy distance measurement (HADM). In examples, the described systems and techniques perform a signal-strength scan to identify multiple anchor points and then pair, based on the signal-strength scan, the tagged device with a first anchor point of the identified anchor points. A HADM time slot is set for the first anchor point and at least two additional anchor points of the identified anchor points. A HADM event is initiated, the HADM event including sending a HADM ping and receiving HADM responses from two or more of the identified anchor points. Based on at least a time of receipt of HADM responses received from the two or more of the identified anchor points, the location of the tagged device is calculated.

公开(公告)号：US20250106920A1

公开(公告)日：2025-03-27

申请号：US18971389

申请日：2024-12-06

Applicant: Google LLC

Inventor： Li-Xuan Chuo ,  Qi Jiang ,  Daniel Barros ,  Sunil Kumar

IPC: H04W76/14 ,  H04W28/10

Abstract: Various arrangements for using a short-range wireless communication link are presented herein. A wireless communication device can transmit data using an asynchronous connection-oriented logical transport (ACL) of the short-range wireless communication link. Monitoring for a high throughput event on the ACL of the short-range wireless communication link can be performed. Based on detecting the high throughput event on the ACL, a first physical layer (PHY) symbol rate of the ACL can be increased to a second PHY symbol rate.

公开(公告)号：US20240143272A1

公开(公告)日：2024-05-02

申请号：US18495077

申请日：2023-10-26

Applicant: Google LLC

Inventor： Daniel Barros ,  Sunil Kumar ,  Li-Xuan Chuo ,  Qi Jiang

IPC: G06F3/16

CPC classification number: G06F3/165 ,  H04M1/72412

Abstract: Features described herein pertain to systems and methods for wirelessly providing an audio stream. When audio that is to be output to an audio output device is associated with an application a set of parameters for modifying an established Connected Isochronous Stream (CIS) of a wireless link between an audio source and the audio output device can be determined and the CIS of the wireless link can be modified based on the set of parameters. The audio that is associated with the application can be output to the audio output device using the modified CIS of the wireless link.

公开(公告)号：US12193089B2

公开(公告)日：2025-01-07

申请号：US18500542

申请日：2023-11-02

Applicant: Google LLC

Inventor： Li-Xuan Chuo ,  Qi Jiang ,  Daniel Barros ,  Sunil Kumar

IPC: H04W76/14 ,  H04W28/10

Abstract: Various arrangements are presented for increasing a link margin of a wireless audio link. A short-range wireless communication link having a first physical layer (PHY) symbol rate is established between an audio source device and an audio output device. An audio stream is transmitted using the communication link, which includes a connected isochronous stream (CIS) link. A number of packet retransmissions are detected on the CIS. Based on the detected number of packet retransmissions on the CIS, the first PHY symbol rate of the CIS can be altered to a second PHY symbol rate for transmitting the audio stream.

公开(公告)号：US20240155711A1

公开(公告)日：2024-05-09

申请号：US18500542

申请日：2023-11-02

Applicant: Google LLC

Inventor： Li-Xuan Chuo ,  Qi Jiang ,  Daniel Barros ,  Sunil Kumar

IPC: H04W76/14 ,  H04W28/10

CPC classification number: H04W76/14 ,  H04W28/10

Abstract: Various arrangements are presented for increasing a link margin of a wireless audio link. A short-range wireless communication link having a first physical layer (PHY) symbol rate is established between an audio source device and an audio output device. An audio stream is transmitted using the communication link, which includes a connected isochronous stream (CIS) link. A number of packet retransmissions are detected on the CIS. Based on the detected number of packet retransmissions on the CIS, the first PHY symbol rate of the CIS can be altered to a second PHY symbol rate for transmitting the audio stream.