Inventor
NGO HUNG CAI
US45 patents
⚠️ This page may combine multiple inventors who share the name “NGO HUNG CAI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IBM
41 patentsUS7551508B2Jun 23, 2009
Energy efficient storage device using per-element selectable power supply voltages
IBM19 citations93
US7408829B2Aug 5, 2008
Methods and arrangements for enhancing power management systems in integrated circuits
IBM32 citations93
US7088154B2Aug 8, 2006
Methods and arrangements for a low power phase-locked loop
IBM19 citations93
US6943599B2Sep 13, 2005
Methods and arrangements for a low power phase-locked loop
IBM28 citations93
US6404235B1Jun 11, 2002
System and method for reducing latency in a dynamic circuit
IBM23 citations93
US6393446B1May 21, 2002
32-bit and 64-bit dual mode rotator
IBM19 citations93
US6292027B1Sep 18, 2001
Fast low-power logic gates and method for evaluating logic signals
IBM22 citations93
US6175852B1Jan 16, 2001
High-speed binary adder
IBM24 citations93
US5964827AOct 12, 1999
High-speed binary adder
IBM23 citations93
US7349271B2Mar 25, 2008
Cascaded test circuit with inter-bitline drive devices for evaluating memory cell performance
IBM21 citations92
US6650145B2Nov 18, 2003
Circuits and systems for limited switch dynamic logic
IBM47 citations92
US6529084B1Mar 4, 2003
Interleaved feedforward VCO and PLL
IBM23 citations92
US6501313B2Dec 31, 2002
Dynamic duty cycle adjuster
IBM48 citations92
US6335900B1Jan 1, 2002
Method and apparatus for selectable wordline boosting in a memory device
IBM20 citations92
US7414904B2Aug 19, 2008
Method for evaluating storage cell design using a wordline timing and cell access detection circuit
IBM22 citations91
US6763474B1Jul 13, 2004
System for synchronizing nodes in a heterogeneous computer system by using multistage frequency synthesizer to dynamically adjust clock frequency of the nodes
IBM35 citations91
US7995418B2Aug 9, 2011
Method and computer program for controlling a storage device having per-element selectable power supply voltages
IBM10 citations84
US7952422B2May 31, 2011
Methods and apparatus for varying a supply voltage or reference voltage using independent control of diode voltage in asymmetrical double-gate devices
IBM11 citations84
US7733720B2Jun 8, 2010
Method and system for determining element voltage selection control values for a storage device
IBM15 citations84
US6819141B1Nov 16, 2004
High speed, static digital multiplexer
IBM13 citations84
US6285218B1Sep 4, 2001
Method and apparatus for implementing logic using mask-programmable dynamic logic gates
IBM15 citations84
US6282557B1Aug 28, 2001
Low latency fused multiply-adder
IBM19 citations84
US7545690B2Jun 9, 2009
Method for evaluating memory cell performance
IBM9 citations83
US6566921B1May 20, 2003
Apparatus and method for high resolution frequency adjustment in a multistage frequency synthesizer
IBM19 citations83
US6522207B1Feb 18, 2003
Apparatus and method for dynamic frequency adjustment in a frequency synthesizer
IBM17 citations83
US7202705B2Apr 10, 2007
Dynamic logic circuit apparatus and method for reducing leakage power consumption via separate clock and output stage control
IBM11 citations82
US7272624B2Sep 18, 2007
Fused booth encoder multiplexer
IBM7 citations74
US6891399B2May 10, 2005
Variable pulse width and pulse separation clock generator
IBM11 citations74
US6345286B1Feb 5, 2002
6-to-3 carry-save adder
IBM9 citations74
US6178437B1Jan 23, 2001
Method and apparatus for anticipating leading digits and normalization shift amounts in a floating-point processor
IBM10 citations74
US5757682AMay 26, 1998
Parallel calculation of exponent and sticky bit during normalization
IBM7 citations72
US5742535AApr 21, 1998
Parallel calculation of exponent and sticky bit during normalization
IBM5 citations72
US7835212B2Nov 16, 2010
Methods and arrangements for enhancing power management systems in integrated circuits
IBM2 citations63
US7142015B2Nov 28, 2006
Fast turn-off circuit for controlling leakage
IBM6 citations63
US6335650B1Jan 1, 2002
Method and apparatus for adjusting time delays in circuits with multiple operating supply voltages
IBM5 citations63
US6710668B1Mar 23, 2004
Glitchless wide-range oscillator, and method therefor
IBM5 citations62
US6407574B1Jun 18, 2002
Method and system for utilizing hostile-switching neighbors to improve interconnect speed for high performance processors
IBM3 citations62
US7193446B2Mar 20, 2007
Dynamic logic circuit incorporating reduced leakage state-retaining devices
IBM4 citations61
US6360238B1Mar 19, 2002
Leading zero/one anticipator having an integrated sign selector
IBM6 citations61
US5742536AApr 21, 1998
Parallel calculation of exponent and sticky bit during normalization
IBM2 citations61
US6232872B1May 15, 2001
Comparator
IBM0 citations52