US Patent Issued to Renesas Design Austria on Dec. 2 for "Wireless charging with hybrid sin/square reconfigurable RF waveform" (Austrian Inventors)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,489,319, issued on Dec. 2, was assigned to Renesas Design Austria GmbH (Graz, Austria).

"Wireless charging with hybrid sin/square reconfigurable RF waveform" was invented by Stephen Ellwood (Graz, Austria) and Lukas Niederwieser (Graz, Austria).

According to the abstract* released by the U.S. Patent & Trademark Office: "A digital power amplifier to drive an RFID antenna with an antenna signal of a substantial sinusoidal output current. This digital power amplifier includes a switching element built to switch at least one of the 2*W driver blocks from a contributing mode into a none-contributing mode, in which none-contributing mode the driver block does not contribute with an incremen...