Inventor
CHAN WAI CHEONG
US19 patents
⚠️ This page may combine multiple inventors who share the name “CHAN WAI CHEONG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NAT SEMICONDUCTOR CORP
16 patentsUS6970015B1Nov 29, 2005
Apparatus and method for a programmable trip point in an I/O circuit using a pre-driver
NAT SEMICONDUCTOR CORP25 citations92
US6710637B1Mar 23, 2004
Non-overlap clock circuit
NAT SEMICONDUCTOR CORP27 citations92
US6600358B1Jul 29, 2003
Elimination of current drain in step-up level shifter when low power domain is off
NAT SEMICONDUCTOR CORP26 citations92
US6472912B1Oct 29, 2002
Device for power supply detection and power on reset
NAT SEMICONDUCTOR CORP38 citations92
US6353346B1Mar 5, 2002
Apparatus and method for a programmable adaptive output driver
NAT SEMICONDUCTOR CORP48 citations92
US7149903B1Dec 12, 2006
System and method for signal delay in an adaptive voltage scaling slack detector
NAT SEMICONDUCTOR CORP38 citations90
US7034628B1Apr 25, 2006
Crystal oscillator circuit having a start-up time reduction circuit
NAT SEMICONDUCTOR CORP22 citations88
US7627839B1Dec 1, 2009
Process corner indicator and estimation circuit
NAT SEMICONDUCTOR CORP12 citations84
US6874933B1Apr 5, 2005
Apparatus for digital temperature measurement in an integrated circuit
NAT SEMICONDUCTOR CORP13 citations84
US8004329B1Aug 23, 2011
Hardware performance monitor (HPM) with variable resolution for adaptive voltage scaling (AVS) systems
NAT SEMICONDUCTOR CORP9 citations81
US7206959B1Apr 17, 2007
Closed-loop, supply-adjusted ROM memory circuit
NAT SEMICONDUCTOR CORP11 citations80
US7069461B1Jun 27, 2006
Closed-loop, supply-adjusted RAM memory circuit
NAT SEMICONDUCTOR CORP11 citations80
US6965264B1Nov 15, 2005
Adaptive threshold scaling circuit
NAT SEMICONDUCTOR CORP8 citations73
US6946881B1Sep 20, 2005
Method to detect the polarity of sync signals without external capacitor or clock
NAT SEMICONDUCTOR CORP6 citations73
US7634746B1Dec 15, 2009
Process corner estimation circuit with temperature compensation
NAT SEMICONDUCTOR CORP6 citations62
US6710622B1Mar 23, 2004
Programmable digital one-shot
NAT SEMICONDUCTOR CORP5 citations62