US Patent Issued to QUALCOMM on Sept. 16 for "Multiple-input and multiple-output demodulation for non-uniform modulation constellations" (California Inventors)

ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,418,330, issued on Sept. 16, was assigned to QUALCOMM Inc. (San Diego).

"Multiple-input and multiple-output demodulation for non-uniform modulation constellations" was invented by Mahmoud Taherzadeh Boroujeni (San Diego), Wei Yang (San Diego) and Tao Luo (San Diego).

According to the abstract* released by the U.S. Patent & Trademark Office: "Some wireless communications systems modulate signals for transmission via a channel. Probabilistic shaping may utilize non-uniformly distributed modulation constellations to increase spectral efficiency. In some cases, wireless fading may occur in a multiple-input and multiple-output (MIMO) channel, which may cause a loss of the shaping gain fr...