Inventor
RAMACHANDRAN IYAPPAN
US9 patents
⚠️ This page may combine multiple inventors who share the name “RAMACHANDRAN IYAPPAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
APPLE INC
5 patentsUS10381715B2Aug 13, 2019
Electronic device antennas having multi-band tuning capabilities
APPLE INC7 citations84
US10693516B2Jun 23, 2020
Electronic device having adjustable antenna settings
APPLE INC7 citations83
US11422692B2Aug 23, 2022
System and method of controlling devices using motion gestures
APPLE INC2 citations65
US11456768B2Sep 27, 2022
Electronic device having adjustable antenna settings
APPLE INC0 citations62
US12443284B2Oct 14, 2025
System and method of controlling devices using motion gestures
APPLE INC0 citations57
AMAZON TECH INC
4 patentsUS11322838B1May 3, 2022
Techniques for in-orbit calibration of phased array antenna
AMAZON TECH INC12 citations82
US11462828B1Oct 4, 2022
Peripheral antenna placement for calibration for a phased array antenna
AMAZON TECH INC3 citations70
US11831356B1Nov 28, 2023
Calibration and measurement of transmit phased array antennas with digital beamforming
AMAZON TECH INC4 citations69
US12040555B1Jul 16, 2024
Peripheral antenna placement for calibration for a phased array antenna
AMAZON TECH INC1 citations59