Inventor

TSAI CHIEN-HSIEN

TW4 patents

⚠️ This page may combine multiple inventors who share the name “TSAI CHIEN-HSIEN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

UPI SEMICONDUCTOR CORP

2 patents

US11139788B2Oct 5, 2021

Measuring current generation circuit

UPI SEMICONDUCTOR CORP0 citations52

US12512759B2Dec 30, 2025

Controller of buck-boost conversion circuit and mode switching method thereof

UPI SEMICONDUCTOR CORP0 citations43

PRINCETON TECHNOLOGY CORP

2 patents

US8957872B2Feb 17, 2015

Touch sensing circuit and touch sensing method

PRINCETON TECHNOLOGY CORP0 citations35

US9261546B2Feb 16, 2016

Touch sensing circuit and method

PRINCETON TECHNOLOGY CORP0 citations33