Inventor
CHANG CHENG-YUAN
TW14 patents
⚠️ This page may combine multiple inventors who share the name “CHANG CHENG-YUAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
UNIV CHUNG YUAN CHRISTIAN
8 patentsUS10515619B1Dec 24, 2019
Portable smart electronic device for noise attenuating and audio broadcasting
UNIV CHUNG YUAN CHRISTIAN5 citations69
US10171907B1Jan 1, 2019
Fan noise controlling system
UNIV CHUNG YUAN CHRISTIAN3 citations69
US9866932B2Jan 9, 2018
Electronic helmet and method thereof for cancelling noises
UNIV CHUNG YUAN CHRISTIAN3 citations69
US11405724B1Aug 2, 2022
Method for feedforward active noise control system using analog filter
UNIV CHUNG YUAN CHRISTIAN0 citations50
US11367427B1Jun 21, 2022
Method for feedforward active noise control system
UNIV CHUNG YUAN CHRISTIAN0 citations44
US12425779B2Sep 23, 2025
Hearing aid device with functions of anti-noise and 3D sound recognition
UNIV CHUNG YUAN CHRISTIAN0 citations42
US8379879B2Feb 19, 2013
Active noise reduction system
UNIV CHUNG YUAN CHRISTIAN2 citations42
US10119441B2Nov 6, 2018
Waste air exhausting device having functionality to abate noise and modulate noise frequency
UNIV CHUNG YUAN CHRISTIAN0 citations38