Octagonal quadrature amplitude modulation

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United States of America Patent

PATENT NO 8995573
SERIAL NO

13658566

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Abstract

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Octagonal non-rectangular Quadrature Amplitude Modulation (QAM) is disclosed. Grid points from a uniform rectangular grid, which includes points that have equal horizontal and vertical spacing, are selected to form a non-rectangular octagonal grid that approximates an octagonal shape. QAM symbols are mapped to respective grid points in the non-rectangular octagonal grid to form a non-rectangular octagonal QAM constellation that also approximates the octagonal shape. Input signals can then be modulated using the non-rectangular octagonal QAM constellation.

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Patent Owner(s)

Patent OwnerAddress
COMS IP HOLDINGS LLC6890 E SUNRISE DRIVE #120 - PMB 506 TUCSON AS 85750

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aharony, Ahikam Kanata, CA 19 222
Li, Chunyao Kanata, CA 2 2
Prokoptsov, Mikhail Kanata, CA 7 57

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