Inventor
Shen-Iuan Liu
Inventor
Taipei, TW
Overview
Patents· 45 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H03Lprimary
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses21%
H03KPulse technique18%
G06GAnalogue computers10%
H03FAmplifiers10%
H03BGeneration of oscillations, directly or by frequency-changing, by circuits employing active elements which operate in a non-switching manner6%
H03HImpedance networks, e.g. resonant circuits6%
H03MCoding6%
H04LTransmission of digital information, e.g. telegraphic communication6%
G04FTime-interval measuring4%
G01RMeasuring electric variables3%
PatentTitleYear
10,725,486Reference voltage generator202010,594,264Dynamic amplifier and related gain boosting method202010,256,967Clock and data recovery circuit with jitter tolerance enhancement20198,975,965'Differential signal correction circuit'20158,890,626'Divider-less phase locked loop (PLL)'20148,669,795'Noise filtering fractional-N frequency synthesizer and operating method thereof'20148,629,737'Signal processing apparatus'20148,593,207'Limiting amplifiers'20138,476,972'Method and apparatus for amplifying a time difference'20138,319,525'Flip-flop circuit and leakage current suppression circuit utilized in a flip-flop circuit'20128,228,126'Multi-band burst-mode clock and data recovery circuit'20128,193,963'Method and system for time to digital conversion with calibration and correction loops'20128,050,376'All digital phase-locked loop with widely locked frequency'20117,983,361'Clock data recovery circuit'20117,965,108'Frequency synthesizer'20117,940,847'Frequency synthesizer and frequency synthesizing method'20117,924,193'All-digital spread spectrum clock generator'20117,884,674'Clock and data recovery circuit'20117,791,517'Fully differential delta sigma modulator'20107,786,810'Phase locked loop with leakage current calibration'20107,671,635'Frequency synthesizer, coupled divide-by-N circuit, current-reuse multiply-by-M circuit'20107,639,053'Spread spectrum clock generator with low jitter'20097,605,667'Frequency synthesizer with a harmonic locked phase/frequency detector'20097,106,033'Quick-recovery low dropout linear regulator'20066,756,818'Voltage-controlled delay line with reduced timing errors and jitters'20046,639,532'Nested chopper delta-sigma modulator'20036,559,751'Inductor device'20036,515,607'Delta-sigma modulator'20036,380,773'Prescalar using fraction division theory'20026,323,719'Pseudo bipolar junction transistor'20016,288,587'CMOS pulse shrinking delay element with deep subnanosecond resolution'20016,208,192'Four-quadrant multiplier for operation of MOSFET devices in saturation region'20016,172,631'Double-sampling pseudo-3-path bandpass sigma-delta modulator'20016,169,440'Offset-compensated switched-opamp integrator and filter'20016,118,390'Apparatus for obtaining a pulse width of an unknown pulse signal'20006,094,466'High-frequency CMOS dual/multi modulus prescaler'20005,986,483'Direct digital frequency systhesizer'19995,930,322'Divide-by-4/5 counter'19995,656,964'CMOS low-voltage four-quadrant multiplier'19975,602,504'Four-quadrant three-input multiplier'19975,596,289'Differential-difference current conveyor and applications therefor'19975,557,228'Four-quadrant multiplier'19965,506,538'Vector summation device'19965,124,666'CMOS current convevor and its filter applications'19925,097,155'Switched-current differentiators and filters'1992Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992–2003Based in Keelung, TW· patent location history
1996–2002Patents assigned to NAT SCIENCE COUNCIL (13)· patent assignee history
1996Based in Chi-Lung, TW· patent location history
2000–2020Based in Taipei, TW· patent location history
2003Based in Hsinchu, TW· patent location history
2003Based in Taipe, TW· patent location history
2004–2014Patents assigned to MEDIATEK INC (7)· patent assignee history
2009–2015Patents assigned to UNIV NAT TAIWAN (16)· patent assignee history
2012–2014Patents assigned to LIU SHEN-IUAN (7)· patent assignee history
2012–2014Patents assigned to HSUEH FU-LUNG (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| UNIV NAT TAIWAN | 16 | 2009–2015 |
| NAT SCIENCE COUNCIL | 13 | 1996–2002 |
| LIU SHEN-IUANself | 7 | 2012–2014 |
| MEDIATEK INC | 7 | 2004–2014 |
| HSUEH FU-LUNG | 3 | 2012–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Taipei, TW | 29 | 2000–2020 |
| Keelung, TW | 13 | 1992–2003 |
| Hsinchu, TW | 1 | 2003 |
| Taipe, TW | 1 | 2003 |
| Chi-Lung, TW | 1 | 1996 |