US Patent Issued to QUALCOMM on Nov. 4 for "Active mixers with enhanced image rejection ratio (IRR)" (California Inventors)

ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,463,592, issued on Nov. 4, was assigned to QUALCOMM Inc. (San Diego).

"Active mixers with enhanced image rejection ratio (IRR)" was invented by Sherif Mahmoud Shakib Roshdy (San Diego), Jeremy Darren Dunworth (La Jolla, Calif.), Jorge Garcia (San Diego) and Paul Brian Sheehy (San Diego).

According to the abstract* released by the U.S. Patent & Trademark Office: "A communication system includes a passive quadrature generator connected directly to an in-phase (I) mixer and a quadrature (Q) mixer, an I LO amplitude detect circuit connected to the passive quadrature generator and connected to the I mixer, and a Q LO amplitude detect circuit connected to the passive quadrature generator an...