公开(公告)号：US20200252993A1

公开(公告)日：2020-08-06

申请号：US16401917

申请日：2019-05-02

Applicant: QUALCOMM Incorporated

Inventor： Dishant Srivastava ,  Mayank Batra

IPC: H04W84/20 ,  H04W76/14 ,  H04W76/23 ,  H04W52/02 ,  H04W36/30

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for fast role switching between master and slave roles among wireless nodes. In one aspect, wireless nodes, such as wireless earbuds, coupled to a wireless source, may dynamically and intelligently swap master and slave roles to optimize battery life in the wireless nodes.

公开(公告)号：US10557932B1

公开(公告)日：2020-02-11

申请号：US16203567

申请日：2018-11-28

Applicant: QUALCOMM Incorporated

Inventor： Laurence George Richardson ,  Christopher Church ,  Jonathan Grenville Tanner ,  Magnus Sigverth Sommansson ,  Mayank Batra

IPC: G01S13/56 ,  H01P1/20 ,  H01Q1/24 ,  G06F1/10 ,  H04B7/08 ,  H03H7/01

Abstract: Motion-detection systems are often used to detect presence of humans. Such motion-detection systems are often based on passive infrared (PIR) sensors. Unfortunately, such detection systems are unable to reliably distinguish between humans and other entities such as animals and moving heat sources. To address this issue, it is proposed to detect a presence of real time clock (RTC) devices in addition to detecting the heat sources to better determine whether a detected entity is a human.

公开(公告)号：US10148453B2

公开(公告)日：2018-12-04

申请号：US15255313

申请日：2016-09-02

Applicant: QUALCOMM Incorporated

Inventor： Mayank Batra ,  Robin Heydon

IPC: H04J3/00 ,  H04J3/06 ,  H04L12/40 ,  H04W56/00 ,  H04W4/80 ,  H04W4/00

Abstract: According to various aspects, an isochronous channel may include an update slot in which a source device may schedule a transmission to broadcast control information to one or more sink devices. As such, a sink device may initially listen to a periodic advertising stream to receive synchronization information to acquire or re-acquire the isochronous channel and subsequently synchronize to the isochronous channel according to state information that the source device conveys in the update slot.

公开(公告)号：US20180040954A1

公开(公告)日：2018-02-08

申请号：US15230045

申请日：2016-08-05

Applicant: QUALCOMM Incorporated

Inventor： Laurence Richardson ,  Mayank Batra

IPC: H01Q3/44 ,  H01Q1/24 ,  H01Q7/00

CPC classification number: H01Q3/44 ,  H01Q1/241 ,  H01Q7/00 ,  H04B5/0075 ,  H04B14/006

Abstract: The disclosure relates to a magnetic communication method that does not use induction. For example, a transmitter device may generate a magnetic field in a controlled direction and rotate the magnetic field around one or more axes. As such, an angle according to which the magnetic field is rotated at the transmitter device may be used as a variable upon which to encode data transmitted to a receiver device that can sense a direction of the magnetic field along two or more axes. Furthermore, to achieve higher data rates, multiple rotation angles could be used to encode the data transmitted from the transmitter device to the receiver device, which may further improve security because reading and/or generating the modulated magnetic field may be increasingly difficult from any significant distance away from the transmitter device and the receiver device.

公开(公告)号：US20170374533A1

公开(公告)日：2017-12-28

申请号：US15190079

申请日：2016-06-22

Applicant: QUALCOMM Incorporated

Inventor： Mayank Batra ,  Brian Redding ,  Robin Heydon

IPC: H04W4/06 ,  H04L1/16 ,  H04W4/00 ,  H04W8/00 ,  H04W74/08 ,  H04W84/20

CPC classification number: H04W4/06 ,  H04L1/16 ,  H04L2001/0093 ,  H04W4/80 ,  H04W8/005 ,  H04W74/08 ,  H04W84/20

Abstract: A method for communication by a scanner is described. The method includes receiving a broadcast message from a broadcasting device in a connectionless mode. The method also includes performing back channel communication with the broadcasting device on a contention basis while maintaining the connectionless mode. The scanner may send a packet to the broadcasting device while maintaining a connectionless relationship with the broadcasting device.

公开(公告)号：US20170244576A1

公开(公告)日：2017-08-24

申请号：US15255313

申请日：2016-09-02

Applicant: QUALCOMM Incorporated

Inventor： Mayank Batra ,  Robin Heydon

IPC: H04L12/40 ,  H04W56/00

CPC classification number: H04L12/40058 ,  H04W4/80 ,  H04W56/00 ,  H04W56/0025

Abstract: According to various aspects, an isochronous channel may include an update slot in which a source device may schedule a transmission to broadcast control information to one or more sink devices. As such, a sink device may initially listen to a periodic advertising stream to receive synchronization information to acquire or re-acquire the isochronous channel and subsequently synchronize to the isochronous channel according to state information that the source device conveys in the update slot.