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

Claim 10:
11. A first wireless power transmission system (WPTS), the first WPTS comprising:
a transceiver;
a plurality of antennas including one or more calibration antennas and a reference antenna;
the transceiver configured to transmit a beacon via the one or more calibration antennas;
the transceiver further configured to receive the beacon via the reference antenna;
the transceiver further configured to receive, via one or more antennas of the plurality of antennas, an indication of a phase of the beacon detected at a second WPTS;
the transceiver further configured to receive, via 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;
the transceiver further configured to receive, via 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;
a processor configured to select 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;
the transceiver further configured to send, via at least one antenna, an indication of the calibration phase shift to the second WPTS; and
the transceiver further configured to directionally transmit, via at least some of the plurality of antennas, first wireless power transmissions to a wireless power receive client (WPRC).