Davy H. Choi
25Patents
9h-index
20Co-inventors
75Inventor score
Filing activity: Jan 18, 1994 → Sep 10, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6023383A | Error estimation circuit and method for providing a read channel error signal | Physics | 58 | Expired |
| US6147828A | Method and apparatus for reducing asymmetry in a signal from a magneto-resistive read head | Physics | 40 | Expired |
| US6369618B1 | Temperature and process independent exponential voltage-to-current converter circuit | Physics | 33 | Expired |
| US5479112A | Logic gate with matched output rise and fall times and method of construction | Electricity | 15 | Expired |
| US6538833B2 | System and method for improving frequency response in a magneto-resistive preamplifier | Physics | 10 | Expired |
| US8648648B2 | Bandgap voltage reference circuit, system, and method for reduced output curvature | Emerging Cross-Sectional Technologies | 10 | Active |
| US6404579B1 | Current bias voltage sense single ended preamplifier | Physics | 9 | Expired |
| US6046875A | Linear transconductance circuit having a large linear range | Physics | 9 | Expired |
| US5594377A | Delay circuit for a write data precompensator system | Electricity | 9 | Expired |
| US5994926A | Circuit and method for programmably changing the transconductance of a transconductor circuit | Electricity | 9 | Expired |
| US5952867A | Exponentiator circuit and method for generating decibel steps of programmable current gain | Electricity | 7 | Expired |
| US6927933B2 | Apparatus configured for applying write signals for driving a write head and method for configuring | Physics | 6 | Expired |
| US6268765A | 2.5V, 30-100 MHz 7th order equiripple delay continuous-time filter and variable gain amplifier | Electricity | 5 | Expired |
| US5808460A | Rapid power enabling circuit | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5408135A | Rectangular-to-sine wave converter | Electricity | 3 | Expired |
| US5933463A | Method and circuit for calculating metrics for an analog viterbi detector | Electricity | 2 | Expired |
| US5461337A | System for providing linear time position variations in write precompensation circuit for use in disk drive systems | Electricity | 1 | Expired |
| US6734721B1 | Method and apparatus for affecting speed of transition of a closed loop circuit | Electricity | 1 | Expired |
| US7085088B2 | Method of controlling reader amplifier gain variations of a HDD preamplifier, or the like | Electricity | 1 | Expired |
| US11143670B2 | Sensing an ICMFB output to detect functional state of a MEMS sensor | Physics | 1 | Active |
| US6631044B1 | Method of reducing a frequency-response peaking of a magneto-resistive preamplifier in a mass data storage device, or the like | Electricity | 1 | Expired |
| US7110204B2 | Process-insensitive write current generation for a HDD preamplifier writer equipped with parallel output resistive damping | Electricity | 0 | Expired |
| US9246458B2 | Fixed gain amplifier circuit | Electricity | 0 | Active |
| US9755597B2 | Fixed gain amplifier circuit | Electricity | 0 | Active |
| US12092653B2 | Sensing an ICMFB output to detect functional state of a mems sensor | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.