公开(公告)号：US11558763B2

公开(公告)日：2023-01-17

申请号：US17110565

申请日：2020-12-03

Applicant: QUALCOMM Incorporated

Inventor： Paul Dominic Hiscock ,  Robin Heydon ,  Thomas Allan ,  Nicolas Graube

IPC: H04W24/08 ,  G06Q30/02 ,  H04B17/318 ,  G06K7/10 ,  G06Q10/08

Abstract: According to various aspects and techniques to enable methods and systems for a first communication device to determine an approximate number of other communication devices that have lost contact with a host communication device. This includes determining a common future time window using a last known global time stamp and determining a transmit time within the common future time window. This also includes receiving samples that are captured during the common future time window on a predefined communication channel, as well as analyzing the received samples to estimate the total number of other communication devices.

公开(公告)号：US11971441B2

公开(公告)日：2024-04-30

申请号：US17451150

申请日：2021-10-15

Applicant: QUALCOMM Incorporated

Inventor： Paul Dominic Hiscock ,  Murray Jarvis ,  Nicolas Graube ,  Mafalda Pereira Varela ,  Thomas Allan

IPC: G01R31/08 ,  G01R19/165 ,  G01S13/88

CPC classification number: G01R31/086 ,  G01R19/165 ,  G01S13/88

Abstract: Various embodiments may provide systems and methods for determining a distance to a short in a two-conductor wire. Various embodiments may include determining a distance to a short in a two-conductor wire based at least in part on a phase difference between a phase of an injected tone and a phase of a reflected tone. Various embodiments may include determining a distance to a short in a two-conductor wire based at least in part on both a phase difference and an amplitude difference between an injected tone and a reflected tone. Various embodiments may include determining a distance to a short in a two-conductor wire based at least in part on a measured peak voltage of a combined pulse.

公开(公告)号：US20250131724A1

公开(公告)日：2025-04-24

申请号：US18489598

申请日：2023-10-18

Applicant: QUALCOMM Incorporated

Inventor： Murray Jarvis ,  Ramji Srinivasan ,  Thomas Allan ,  Tingting Liu ,  Paul Dominic Hiscock ,  Benjamin Tarlow ,  Nicolas Graube ,  Abhishek Prasad

IPC: G06V20/50 ,  G06T7/579 ,  G06T7/70 ,  G06V20/60

Abstract: This disclosure provides systems, methods, and devices for Electronic Shelf Label (ESL) systems that support positioning of ESL devices. In a first aspect, a method includes: transmitting, to each ESL device in a group of ESL devices deployed within an environment via a wireless network associated with the environment, a command to emit one or more flashes of light over a flash interval associated with the group; receiving, from a mobile device via the wireless network, visual data collected for the group by a camera during the flash interval; detecting, within the visual data, the one or more flashes emitted by each ESL device in the group over the flash interval; and determining a location within the environment of each ESL device in the group based on the one or more flashes emitted by each ESL device in the visual data. Other aspects and features are also claimed and described.

公开(公告)号：US11555932B2

公开(公告)日：2023-01-17

申请号：US16667515

申请日：2019-10-29

Applicant: QUALCOMM Incorporated

Inventor： Paul Dominic Hiscock ,  Thomas Allan

IPC: G01S19/44 ,  H04W4/80 ,  G01S13/84 ,  G01S19/04 ,  H04W4/02 ,  G01S11/02 ,  G01S11/06

Abstract: Secure range estimates as described herein may include determining a range estimate between two Bluetooth enabled devices based, at least in part, on round trip phase measurements of wireless signals transmitted between the devices. In one example, a range estimate may include determining a first set of relative carrier measurements at a first set of frequencies, determining a second set of relative carrier measurements based on the first set at the second set of frequencies; and combining the first set and the second set to estimate a distance between the devices.

公开(公告)号：US10448214B1

公开(公告)日：2019-10-15

申请号：US16143111

申请日：2018-09-26

Applicant: QUALCOMM Incorporated

Inventor： Murray Jarvis ,  Paul Dominic Hiscock ,  Thomas Allan ,  Nicolas Graube

IPC: H04W4/029 ,  H04W24/08 ,  H04W4/02 ,  H04W4/38 ,  H04W84/18

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may receive at least one signal from a second wireless device, the at least one signal including one or more of RTP information or inertial sensor information. The apparatus may determine at least one AoA measurement and at least one RTP measurement associated with the at least one signal received from the second wireless device. The apparatus may determine a path of trajectory of the second wireless device based at least in part on the at least one AoA measurement, the at least one RTP measurement, and the inertial sensor information.