US Patent Issued to Analog Devices on Dec. 23 for "Calibration of DAC images for improved transmit quadrature error correction" (North Carolina, Massachusetts Inventors)

ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,506,508, issued on Dec. 23, was assigned to Analog Devices Inc. (Wilmington, Mass.).

"Calibration of DAC images for improved transmit quadrature error correction" was invented by Brian Reggiannini (Norwood, Mass.) and Aleksey Kagan (Raleigh, N.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of operating a radio frequency (RF) transceiver includes transmitting a narrowband calibration signal using a transmit channel of the RF transceiver, wherein a transmitted output signal includes a sideband of the calibration signal and a sideband of a digital-to-analog converter (DAC) image signal produced by DAC circuitry of the transmit channel; sampling...