公开(公告)号：US20210282035A1

公开(公告)日：2021-09-09

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 ,  G06Q10/08 ,  G06K7/10 ,  H04B17/318

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：US20220058460A1

公开(公告)日：2022-02-24

申请号：US16999673

申请日：2020-08-21

Applicant: QUALCOMM Incorporated

Inventor： Paul Dominic HISCOCK ,  Anthony MCFARTHING ,  Aline COELHO DE SOUZA

IPC: G06K19/077 ,  H01Q1/22 ,  H01Q1/38 ,  H04W4/80

Abstract: According to various aspects and technical advantages, an apparatus for electronic shelf labels includes a controller circuit for communicating with communication devices using a contactless communication protocol, a set of two or more antenna coils, each antenna coil located at a known position relative to the controller circuit, and a switch for selectively coupling the controller circuit to one or more of the set of antenna coils. The controller circuit is configured to determine a physical location of a communication device based on which antenna coil from the set of antenna coils the communication device is using to communicate with the controller circuit

公开(公告)号：US20210235528A1

公开(公告)日：2021-07-29

申请号：US17168877

申请日：2021-02-05

Applicant: QUALCOMM Incorporated

Inventor： Paul John MORRIS ,  Paul Dominic HISCOCK

IPC: H04W76/15 ,  H04W36/00 ,  H04W88/04 ,  H04B17/309

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media for reliable communication between a source device, and two or more sink devices. In one aspect, a sink device closest in proximity to the source device can establish a wireless data transfer with the source device. In another aspect, the sink device having the more favorable radio channel conditions can establish a wireless data transfer with the source device. In some aspects, the sink devices can forward audio data received from the source device over a secondary communication link. The audio data can be forwarded to the other sink device automatically, or upon request from the other sink device. The secondary communication link can be implemented as a magnetic communication link, or as a Bluetooth communication link.

公开(公告)号：US20230118013A1

公开(公告)日：2023-04-20

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

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：US20200092893A1

公开(公告)日：2020-03-19

申请号：US16133478

申请日：2018-09-17

Applicant: QUALCOMM Incorporated

Inventor： Thomas ALLAN ,  Paul Dominic HISCOCK

IPC: H04W72/08 ,  H04W72/04

Abstract: The present disclosure provides a frequency hopping technique that may remove the effects of radial motion while making phase measurements (e.g., RTP measurements) by taking symmetric samples/RTP measurements of a signal transmitted and received for a set of carrier frequencies around the center time of an RTP measurement campaign.

公开(公告)号：US20240080880A1

公开(公告)日：2024-03-07

申请号：US17930210

申请日：2022-09-07

Applicant: QUALCOMM Incorporated

Inventor： Nicolas GRAUBE ,  Robin ROBIN ,  Deep Shikha AGGARWAL ,  Sonu LNU ,  Randhir KUMAR ,  Paul Dominic HISCOCK ,  Mauro SCAGNOL ,  Tingting LIU ,  Rahul SANGWAN

IPC: H04W74/00 ,  H04L45/00 ,  H04L45/028 ,  H04W74/02

CPC classification number: H04W74/002 ,  H04L45/028 ,  H04L45/46 ,  H04W74/02

Abstract: Various embodiments include methods for rotating a control node role among devices in a control cluster of a wireless mesh network. Methods may include assuming the control node role by a first device based on a control node assumption timing in a schedule, and transmitting periodic messages to support the wireless mesh network. Methods may further include using the schedule to identify a control node role end timing and a third device in the control cluster that will assume the control node role, transmitting the periodic messages while monitoring for an extended advertisement from the third device after the control node role end timing until the extended advertisement from the third device is received, and assuming a passive node role upon receiving the extended advertisement from the third device or continuing the control node role when no extended advertisement is received from the third device.

公开(公告)号：US20210160001A1

公开(公告)日：2021-05-27

申请号：US16696804

申请日：2019-11-26

Applicant: QUALCOMM Incorporated

Inventor： Paul Dominic HISCOCK ,  Thomas ALLAN

IPC: H04L1/00 ,  H04W72/04 ,  H04W28/04 ,  H04L27/26

Abstract: Methods, systems, and devices for tampering detection in phase based ranging are described.
A device may engage in two-tone phase based ranging. For example, the device may transmit a composite signal that includes a first carrier at a first frequency and a second carrier at a second frequency. The device may receive a third carrier at the first frequency and measure its phase. The device may determine a phase sum associated with the first frequency based on the measured phase of the third carrier and a measured phase of the first carrier. The device may compare the phase sum with a reference value and determine whether tampering with the phase based ranging has occurred based on the comparison.

公开(公告)号：US20210124061A1

公开(公告)日：2021-04-29

申请号：US16667515

申请日：2019-10-29

Applicant: QUALCOMM Incorporated

Inventor： Paul Dominic HISCOCK ,  Thomas ALLAN

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

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.