Inventor
NGO HUNG C
US52 patents
⚠️ This page may combine multiple inventors who share the name “NGO HUNG C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IBM
42 patentsUS6515530B1Feb 4, 2003
Dynamically scalable low voltage clock generation system
IBM65 citations96
US7266707B2Sep 4, 2007
Dynamic leakage control circuit
IBM34 citations93
US6872991B1Mar 29, 2005
Low gate-leakage virtual rail circuit
IBM20 citations93
US7276932B2Oct 2, 2007
Power-gating cell for virtual power rail control
IBM39 citations92
US7219244B2May 15, 2007
Control circuitry for power gating virtual power supply rails at differing voltage potentials
IBM27 citations92
US6809602B2Oct 26, 2004
Multi-mode VCO
IBM22 citations92
US6690204B1Feb 10, 2004
Limited switch dynamic logic circuit
IBM37 citations92
US6675182B1Jan 6, 2004
Method and apparatus for performing rotate operations using cascaded multiplexers
IBM21 citations92
US6501304B1Dec 31, 2002
Glitch-less clock selector
IBM44 citations92
US6483888B1Nov 19, 2002
Clock divider with bypass and stop clock
IBM34 citations92
US5375223ADec 20, 1994
Single register arbiter circuit
IBM74 citations92
US7372305B1May 13, 2008
Scannable dynamic logic latch circuit
IBM15 citations84
US7323908B2Jan 29, 2008
Cascaded pass-gate test circuit with interposed split-output drive devices
IBM10 citations84
US7298176B2Nov 20, 2007
Dual-gate dynamic logic circuit with pre-charge keeper
IBM12 citations84
US7288975B2Oct 30, 2007
Method and apparatus for fail-safe and restartable system clock generation
IBM11 citations84
US7129754B2Oct 31, 2006
Controlled load limited switch dynamic logic circuitry
IBM13 citations84
US7046063B2May 16, 2006
Interface circuit for coupling between logic circuit domains
IBM12 citations84
US7002420B2Feb 21, 2006
Interleaved VCO with body voltage frequency range control
IBM18 citations84
US6963250B2Nov 8, 2005
Voltage controlled oscillator with selectable frequency ranges
IBM18 citations84
US6960939B2Nov 1, 2005
Limited switch dynamic logic circuit with keeper
IBM15 citations84
US6956793B2Oct 18, 2005
Phase clock selector for generating a non-integer frequency division
IBM19 citations84
US6919739B2Jul 19, 2005
Feedforward limited switch dynamic logic circuit
IBM15 citations84
US6888377B2May 3, 2005
Duo-mode keeper circuit
IBM13 citations84
US6529082B1Mar 4, 2003
Dual mode charge pump
IBM16 citations84
US5881274AMar 9, 1999
Method and apparatus for performing add and rotate as a single instruction within a processor
IBM17 citations84
US7057432B2Jun 6, 2006
Low power high frequency phase detector
IBM8 citations74
US6975134B2Dec 13, 2005
Buffer/driver circuits
IBM9 citations74
US6873188B2Mar 29, 2005
Limited switch dynamic logic selector circuits
IBM8 citations74
US7760565B2Jul 20, 2010
Wordline-to-bitline output timing ring oscillator circuit for evaluating storage array performance
IBM7 citations73
US7719315B2May 18, 2010
Programmable local clock buffer
IBM7 citations73
US5627774AMay 6, 1997
Parallel calculation of exponent and sticky bit during normalization
IBM6 citations73
US7810000B2Oct 5, 2010
Circuit timing monitor having a selectable-path ring oscillator
IBM5 citations63
US7487374B2Feb 3, 2009
Dynamic power and clock-gating method and circuitry with sleep mode based on estimated time for receipt of next wake-up signal
IBM3 citations63
US7061265B2Jun 13, 2006
Circuit for controlling leakage
IBM2 citations63
US6963629B2Nov 8, 2005
Adaptive phase locked loop
IBM6 citations63
US6940312B2Sep 6, 2005
Low switching power limited switch dynamic logic
IBM2 citations63
US7459950B2Dec 2, 2008
Pulsed local clock buffer (LCB) characterization ring oscillator
IBM5 citations62
US7284029B2Oct 16, 2007
4-to-2 carry save adder using limited switching dynamic logic
IBM6 citations62
US7525393B2Apr 28, 2009
Digital frequency multiplier circuit
IBM3 citations61
US7782092B2Aug 24, 2010
Cascaded pass-gate test circuit with interposed split-output drive devices
IBM0 citations52
US7216141B2May 8, 2007
Computing carry-in bit to most significant bit carry save adder in current stage
IBM0 citations51
US7587020B2Sep 8, 2009
High performance, low power, dynamically latched up/down counter
IBM1 citations50
CHANG LELAND
2 patentsFLEISCHER BRUCE M
2 patentsCHUANG CHING-TE K
2 patentsINTERNATIIONAL BUSINESS MACHIN
1 patentCHEN LEI
1 patentShowing the top 50 of 52 patents by PatentIndex Score.