US 2019/0199145 A1 · Transmission Path Identification Based On Propagation Channel Diversity

Abstract

Various embodiments of the present technology relate generally to wireless power systems. More specifically, some embodiments relate to the use of time reversal techniques utilizing time diversity (e.g., different multipath arrivals at the same antenna) to achieve coherency from the same transmission node. For example, instead of initiating outgoing transmissions (e.g., power signals) at the same time, various embodiments can initiate the outgoing signals from the various antennas in a staggered timing that is a reversal of the arrival times of an incoming signal. As a result of staggering the start of the outgoing signals, the signals will arrive at the destination at approximately the same time even though they have traveled different paths having different propagation delays.

Claims20

Dependent claims

A method comprising:

receiving, at an array of antennas, a wireless signal from a client device;
recording the wireless signal received at each antenna in the array of antennas;
and
generating a coherent transmission signal to be sent to the client device from the array of antennas, wherein the coherent transmission signal is created by transmitting the coherent transmission signal at each antenna in a reverse order of the wireless signal received at each of the array of antennas.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

15/852,348Filed 22 Dec 2017

Published

27 Jun 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification12 codes

H02J 50/20
Circuit arrangements or systems for wireless supply or distribution of electric power: using microwaves or radio frequency waves
H02J 50/23
Using microwaves or radio frequency waves: characterised by the type of transmitting antennas, e.g. directional array antennas or Yagi antennas
H02J 50/40
Circuit arrangements or systems for wireless supply or distribution of electric power: using two or more transmitting or receiving devices
H02J 50/80
Circuit arrangements or systems for wireless supply or distribution of electric power: involving the exchange of data, concerning supply or…

Transmission Path Identification Based On Propagation Channel Diversity

Life of this patent

Transmission Path Identification Based On Propagation Channel Diversity

Life of this patent

Abstract

Claims20