Inventor
LIU SHEN-IUAN
TW47 patents
⚠️ This page may combine multiple inventors who share the name “LIU SHEN-IUAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NAT SCIENCE COUNCIL
13 patentsUS6323719B1Nov 27, 2001
Pseudo bipolar junction transistor
NAT SCIENCE COUNCIL22 citations92
US6169440B1Jan 2, 2001
Offset-compensated switched-opamp integrator and filter
NAT SCIENCE COUNCIL33 citations92
US5596289AJan 21, 1997
Differential-difference current conveyor and applications therefor
NAT SCIENCE COUNCIL31 citations92
US6172631B1Jan 9, 2001
Double-sampling pseudo-3-path bandpass sigma-delta modulator
NAT SCIENCE COUNCIL30 citations88
US5986483ANov 16, 1999
Direct digital frequency systhesizer
NAT SCIENCE COUNCIL21 citations88
US6094466AJul 25, 2000
High-frequency CMOS dual/multi modulus prescaler
NAT SCIENCE COUNCIL12 citations74
US5930322AJul 27, 1999
Divide-by-4/5 counter
NAT SCIENCE COUNCIL15 citations74
US5656964AAug 12, 1997
CMOS low-voltage four-quadrant multiplier
NAT SCIENCE COUNCIL8 citations74
US5602504AFeb 11, 1997
Four-quadrant three-input multiplier
NAT SCIENCE COUNCIL14 citations74
US5557228ASep 17, 1996
Four-quadrant multiplier
NAT SCIENCE COUNCIL13 citations74
US6118390ASep 12, 2000
Apparatus for obtaining a pulse width of an unknown pulse signal
NAT SCIENCE COUNCIL10 citations68
US6380773B1Apr 30, 2002
Prescalar using fraction division theory
NAT SCIENCE COUNCIL4 citations58
US6208192B1Mar 27, 2001
Four-quadrant multiplier for operation of MOSFET devices in saturation region
NAT SCIENCE COUNCIL0 citations27
UNIV NAT TAIWAN
8 patentsUS7671635B2Mar 2, 2010
Frequency synthesizer, coupled divide-by-N circuit, current-reuse multiply-by-M circuit
UNIV NAT TAIWAN23 citations86
US7884674B2Feb 8, 2011
Clock and data recovery circuit
UNIV NAT TAIWAN12 citations84
US7786810B2Aug 31, 2010
Phase locked loop with leakage current calibration
UNIV NAT TAIWAN11 citations82
US8050376B2Nov 1, 2011
All digital phase-locked loop with widely locked frequency
UNIV NAT TAIWAN12 citations81
US7924193B2Apr 12, 2011
All-digital spread spectrum clock generator
UNIV NAT TAIWAN11 citations79
US8669795B2Mar 11, 2014
Noise filtering fractional-N frequency synthesizer and operating method thereof
UNIV NAT TAIWAN3 citations56
US7791517B2Sep 7, 2010
Fully differential delta sigma modulator
UNIV NAT TAIWAN0 citations43
US8975965B2Mar 10, 2015
Differential signal correction circuit
UNIV NAT TAIWAN0 citations33
MEDIATEK INC
4 patentsUS7965108B2Jun 21, 2011
Frequency synthesizer
MEDIATEK INC28 citations93
US7605667B2Oct 20, 2009
Frequency synthesizer with a harmonic locked phase/frequency detector
MEDIATEK INC6 citations74
US6756818B1Jun 29, 2004
Voltage-controlled delay line with reduced timing errors and jitters
MEDIATEK INC5 citations61
US7983361B2Jul 19, 2011
Clock data recovery circuit
MEDIATEK INC0 citations52
NOVATEK MICROELECTRONICS CORP
4 patentsUS10725486B2Jul 28, 2020
Reference voltage generator
NOVATEK MICROELECTRONICS CORP2 citations72
US10594264B2Mar 17, 2020
Dynamic amplifier and related gain boosting method
NOVATEK MICROELECTRONICS CORP4 citations71
US10256967B2Apr 9, 2019
Clock and data recovery circuit with jitter tolerance enhancement
NOVATEK MICROELECTRONICS CORP4 citations71
US11128304B1Sep 21, 2021
Clock and data recovery device and jitter tolerance enhancement method thereof
NOVATEK MICROELECTRONICS CORP5 citations69
IND TECH RES INST
3 patentsUS5124666AJun 23, 1992
CMOS current convevor and its filter applications
IND TECH RES INST42 citations92
US5097155AMar 17, 1992
Switched-current differentiators and filters
IND TECH RES INST4 citations62
US7940847B2May 10, 2011
Frequency synthesizer and frequency synthesizing method
IND TECH RES INST1 citations52