Inventor
YU QISHAN
US17 patents
⚠️ This page may combine multiple inventors who share the name “YU QISHAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
APPLE INC
15 patentsUS11194032B2Dec 7, 2021
Systems and methods for object detection by radio frequency systems
APPLE INC8 citations82
US10957985B2Mar 23, 2021
Electronic devices having antenna module isolation structures
APPLE INC4 citations72
US10833740B1Nov 10, 2020
Systems and methods for coarse scan beamforming using subarrays
APPLE INC5 citations71
US10652065B2May 12, 2020
Systems and methods for compression distortion compensation for wireless signals
APPLE INC5 citations71
US10469120B1Nov 5, 2019
Radio frequency front-end circuitry intermediate driver systems and methods
APPLE INC4 citations71
US10763899B1Sep 1, 2020
Radio-frequency integrated circuit (RFIC) external front-end module
APPLE INC5 citations70
US9444540B2Sep 13, 2016
System and methods for performing antenna transmit diversity
APPLE INC4 citations67
US12436254B2Oct 7, 2025
Systems and methods for object detection by radio frequency systems
APPLE INC0 citations61
US11828833B2Nov 28, 2023
Systems and methods for object detection by radio frequency systems
APPLE INC0 citations61
US11050454B2Jun 29, 2021
Radio frequency front-end circuitry intermediate driver systems and methods
APPLE INC1 citations61
US12068533B2Aug 20, 2024
Radio frequency remote head front-end circuitry systems and methods
APPLE INC0 citations59
US8995934B2Mar 31, 2015
Wireless communications circuitry with a triplexer for separating radio-frequency signals in adjacent frequency bands
APPLE INC2 citations57
US12587152B2Mar 24, 2026
Wireless circuitry with multiple envelope tracking circuits
APPLE INC0 citations54
US10826169B2Nov 3, 2020
Radio frequency remote head front-end circuitry systems and methods
APPLE INC0 citations49
US10826168B2Nov 3, 2020
Radio frequency remote head front-end circuitry systems and methods
APPLE INC0 citations49