Inventor
CHANG NORMAN
US33 patents
⚠️ This page may combine multiple inventors who share the name “CHANG NORMAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ANSYS INC
26 patentsUS10599799B1Mar 24, 2020
Low-dropout regulator and charge pump modeling using frequency-domain fitting methods
ANSYS INC5 citations84
US10592634B1Mar 17, 2020
Systems and methods for automatic handling of engineering design parameter violations
ANSYS INC13 citations84
US10579757B1Mar 3, 2020
Calculating and extracting joule-heating and self-heat induced temperature on wire segments for chip reliability
ANSYS INC8 citations80
US11210444B1Dec 28, 2021
Timing assistant for dynamic voltage drop impact on setup/hold constraints
ANSYS INC8 citations76
US11914931B2Feb 27, 2024
Predicting on chip transient thermal response in a multi-chip system using an RNN-based predictor
ANSYS INC3 citations72
US11301608B2Apr 12, 2022
Layout-based side-channel emission analysis
ANSYS INC4 citations71
US11880456B1Jan 23, 2024
Adaptive leakage impact region detection and modeling for counterfeit chips detection
ANSYS INC2 citations70
US11853661B2Dec 26, 2023
Systems and methods for machine learning based fast static thermal solver
ANSYS INC1 citations70
US11366947B2Jun 21, 2022
Systems and methods for machine learning based fast static thermal solver
ANSYS INC2 citations70
US11797744B1Oct 24, 2023
Methods and systems for predicting silicon density for a metal layer of semi-conductor chip via machine learning
ANSYS INC3 citations69
US11520960B1Dec 6, 2022
Register transfer level based side channel leakage assessment
ANSYS INC6 citations69
US10371583B1Aug 6, 2019
Systems and methods for estimating temperatures of wires in an integrated circuit chip
ANSYS INC4 citations64
US12177349B1Dec 24, 2024
Machine learning for automatic identification of points of interest for side channel leakage
ANSYS INC1 citations62
US12536294B2Jan 27, 2026
Security-aware design with placement for power/emag assessment
ANSYS INC0 citations61
US12242781B2Mar 4, 2025
Systems and methods for machine learning based fast static thermal solver
ANSYS INC0 citations60
US11995187B1May 28, 2024
Systems and methods for a comprehensive and efficient simulation-based methodology on IP authentication and trojan detection
ANSYS INC0 citations60
US12393686B2Aug 19, 2025
Adaptive leakage impact region detection and modeling for counterfeit chips detection
ANSYS INC0 citations59
US12307184B1May 20, 2025
Methods and systems for predicting silicon density for a metal layer of semi-conductor chip via machine learning
ANSYS INC0 citations59
US10970437B2Apr 6, 2021
Calculating and extracting Joule-heating and self-heat induced temperature on wire segments for chip reliability
ANSYS INC1 citations59
US11599633B1Mar 7, 2023
Security information extraction and probe insertion for side-channel analysis
ANSYS INC1 citations58
US12412110B2Sep 9, 2025
Systems and methods for machine learning based risky circuit pattern identification
ANSYS INC0 citations52
US10817631B1Oct 27, 2020
Low-dropout regulator and charge pump modeling using frequency-domain fitting methods
ANSYS INC0 citations52
US11973868B2Apr 30, 2024
Systems and methods for a fast near-field electromagnetic simulation methodology for side-channel emission analysis
ANSYS INC0 citations50
US12581913B1Mar 17, 2026
Steady-state IC thermal analysis with thermal decay curve characterization
ANSYS INC0 citations46
US12566909B1Mar 3, 2026
Prediction of steady state heat maps for chip thermal analysis
ANSYS INC0 citations46
US12277371B2Apr 15, 2025
Dynamic current modeling in dynamic voltage drop analysis
ANSYS INC0 citations43
HEWLETT PACKARD DEVELOPMENT CO
5 patentsUS6566924B2May 20, 2003
Parallel push algorithm detecting constraints to minimize clock skew
HEWLETT PACKARD DEVELOPMENT CO14 citations83
US6621305B2Sep 16, 2003
Partial swing low power CMOS logic circuits
HEWLETT PACKARD DEVELOPMENT CO15 citations80
US6925555B2Aug 2, 2005
System and method for determining a plurality of clock delay values using an optimization algorithm
HEWLETT PACKARD DEVELOPMENT CO8 citations73
US6981231B2Dec 27, 2005
System and method to reduce leakage power in an electronic device
HEWLETT PACKARD DEVELOPMENT CO5 citations61
US6661281B2Dec 9, 2003
Method for reducing current surge using multi-stage ramp shunting
HEWLETT PACKARD DEVELOPMENT CO5 citations60