Patent ID: 11962166
Assignee: OSSIA INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A method performed by a first wireless power transmission system (WPTS), the method comprising:
transmitting a beacon from one or more calibration antennas of the first WPTS;
receiving the beacon at a reference antenna of the first WPTS;
receiving an indication of a phase of the beacon detected at a second WPTS;
receiving, at the one or more calibration antennas, a first sum transmission, wherein the first sum transmission is a sum of a first test transmission from the second WPTS concurrently received with a first transmission from the reference antenna of the first WPTS;
receiving, at the one or more calibration antennas, a second sum transmission, wherein the second sum transmission is a sum of a second test transmission from the second WPTS concurrently received with a second transmission from the reference antenna of the first WPTS, wherein the first test transmission and the second test transmission have different phases;
selecting a calibration phase shift associated with the first sum transmission, wherein the first sum transmission has a larger peak received power than the second sum transmission;
sending an indication of the calibration phase shift to the second WPTS; and
directionally transmitting first wireless power transmissions to a wireless power receive client (WPRC).