公开(公告)号：US10141981B2

公开(公告)日：2018-11-27

申请号：US15658637

申请日：2017-07-25

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Pourya Assem ,  Hun Seok Kim ,  Jing-Fei Ren ,  Srinath Mathur Ramaswamy

IPC: H04B5/00 ,  H04B17/318 ,  H04W4/02 ,  H04W4/80 ,  H04B17/27

Abstract: Methods and apparatus to determine nearfield localization using phase and received signal strength indication (RSSI) diversity are disclosed. An example method includes determining a first strength of an electric field and a second strength of a magnetic field, the electric field and the magnetic field associated with an electromagnetic signal sent from a transmitter; determining a difference between the first strength and the second strength; and determining a transmitter distance based on the difference between the first strength and the second strength.

公开(公告)号：US09749019B2

公开(公告)日：2017-08-29

申请号：US15397424

申请日：2017-01-03

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Pourya Assem ,  Hun Seok Kim ,  Jing-Fei Ren ,  Srinath Mathur Ramaswamy

IPC: H04B5/00 ,  H04B17/318 ,  H04W4/02 ,  H04B17/27 ,  H04W4/00

CPC classification number: H04B5/0043 ,  H04B17/27 ,  H04B17/318 ,  H04W4/023 ,  H04W4/80

Abstract: Methods and apparatus to determine nearfield localization using phase and received signal strength indication (RSSI) diversity are disclosed. An example method includes determining a first strength of an electric field and a second strength of a magnetic field, the electric field and the magnetic field associated with an electromagnetic signal sent from a transmitter; determining a difference between the first strength and the second strength; and determining a transmitter distance based on the difference between the first strength and the second strength.

公开(公告)号：US20190044575A1

公开(公告)日：2019-02-07

申请号：US16158008

申请日：2018-10-11

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Pourya Assem ,  Hun Seok Kim ,  Jing-Fei Ren ,  Srinath Mathur Ramaswamy

IPC: H04B5/00 ,  H04B17/27 ,  H04W4/80 ,  H04B17/318 ,  H04W4/02

Abstract: Methods and apparatus to determine nearfield localization using phase and received signal strength indication (RSSI) diversity are disclosed. An example method includes determining a first strength of an electric field and a second strength of a magnetic field, the electric field and the magnetic field associated with an electromagnetic signal sent from a transmitter; determining a difference between the first strength and the second strength; and determining a transmitter distance based on the difference between the first strength and the second strength.

公开(公告)号：US20250048028A1

公开(公告)日：2025-02-06

申请号：US18362265

申请日：2023-07-31

Applicant: Texas Instruments Incorporated

Inventor： Pourya Assem ,  Kevin Scoones ,  Pavol Balaz ,  Tim Merkin ,  Zejian Wang ,  Jianquan Liao

IPC: H04R3/02

Abstract: An apparatus includes a first power stage circuit having a first output and a power terminal, and a second power stage circuit having a second output and the power terminal. The apparatus further includes a control circuit having a control input, a first control output, and a second control output. In an example, the control input is coupled to the power terminal, the first control output is coupled to the first output, and the second control output is coupled to the second output. In an example, the control circuit is configured to, responsive to a first voltage at the power terminal being below a threshold voltage, set the first and second outputs to a second voltage.

公开(公告)号：US20170324449A1

公开(公告)日：2017-11-09

申请号：US15658637

申请日：2017-07-25

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Pourya Assem ,  Hun Seok Kim ,  Jing-Fei Ren ,  Srinath Mathur Ramaswamy

IPC: H04B5/00 ,  H04W4/00 ,  H04B17/318 ,  H04W4/02 ,  H04B17/27

CPC classification number: H04B5/0043 ,  H04B17/27 ,  H04B17/318 ,  H04W4/023 ,  H04W4/80

Abstract: Methods and apparatus to determine nearfield localization using phase and received signal strength indication (RSSI) diversity are disclosed. An example method includes determining a first strength of an electric field and a second strength of a magnetic field, the electric field and the magnetic field associated with an electromagnetic signal sent from a transmitter; determining a difference between the first strength and the second strength; and determining a transmitter distance based on the difference between the first strength and the second strength.

公开(公告)号：US10700743B2

公开(公告)日：2020-06-30

申请号：US16158008

申请日：2018-10-11

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Pourya Assem ,  Hun Seok Kim ,  Jing-Fei Ren ,  Srinath Mathur Ramaswamy

IPC: H04B5/00 ,  H04B17/318 ,  H04W4/02 ,  H04W4/80 ,  H04B17/27

Abstract: Methods and apparatus to determine nearfield localization using phase and received signal strength indication (RSSI) diversity are disclosed. An example method includes determining a first strength of an electric field and a second strength of a magnetic field, the electric field and the magnetic field associated with an electromagnetic signal sent from a transmitter; determining a difference between the first strength and the second strength; and determining a transmitter distance based on the difference between the first strength and the second strength.

公开(公告)号：US20170126284A1

公开(公告)日：2017-05-04

申请号：US15397424

申请日：2017-01-03

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Pourya Assem ,  Hun Seok Kim ,  Jing-Fei Ren ,  Srinath Mathur Ramaswamy

IPC: H04B5/00 ,  H04W4/00 ,  H04W4/02 ,  H04B17/318

CPC classification number: H04B5/0043 ,  H04B17/27 ,  H04B17/318 ,  H04W4/023 ,  H04W4/80

Abstract: Methods and apparatus to determine nearfield localization using phase and received signal strength indication (RSSI) diversity are disclosed. An example method includes determining a first strength of an electric field and a second strength of a magnetic field, the electric field and the magnetic field associated with an electromagnetic signal sent from a transmitter; determining a difference between the first strength and the second strength; and determining a transmitter distance based on the difference between the first strength and the second strength.

公开(公告)号：US09571163B1

公开(公告)日：2017-02-14

申请号：US14927747

申请日：2015-10-30

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Pourya Assem ,  Hun Seok Kim ,  Jing-Fei Ren ,  Srinath Mathur Ramaswamy

IPC: H04B7/24 ,  H04B5/00 ,  H04B17/318 ,  H04W4/02

CPC classification number: H04B5/0043 ,  H04B17/27 ,  H04B17/318 ,  H04W4/023 ,  H04W4/80

Abstract: Methods and apparatus to determine nearfield localization using phase and received signal strength indication (RSSI) diversity are disclosed. An example method includes determining a first strength of an electric field and a second strength of a magnetic field, the electric field and the magnetic field associated with an electromagnetic signal sent from a transmitter; determining a difference between the first strength and the second strength; and determining a transmitter distance based on the difference between the first strength and the second strength.

Abstract translation: 公开了使用相位和接收信号强度指示（RSSI）分集来确定近场定位的方法和装置。 示例性方法包括确定电场的第一强度和磁场的第二强度，与从发射机发送的电磁信号相关联的电场和磁场; 确定第一强度和第二强度之间的差; 以及基于所述第一强度和所述第二强度之间的差确定发射机距离。